Supplemental Cash Flow Elements [Abstract] Supplemental Information to Statements of Cash Flows Cash Flow, Supplemental Disclosures [Text Block] Commitments and Contingencies Disclosure [Abstract] Management Agreements [Table] Management Agreements [Table] Management agreements. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Real Estate [Domain] Real Estate [Domain] Monaco Washington DC [Member] Monaco Washington Dc [Member] Monaco Washington DC. Argonaut Hotel [Member] Argonaut Hotel [Member] Argonaut hotel. Hotel Zelos San Francisco [Member] Hotel Zelos San Francisco [Member] Hotel Zelos San Francisco [Member] Hotel Zephyr Fisherman's Wharf [Member] Hotel Zephyr Fisherman's Wharf [Member] Hotel Zephyr Fisherman's Wharf [Member] Hotel Zeppelin San Francisco [Member] Hotel Zeppelin San Francisco [Member] Hotel Zeppelin San Francisco [Member] Hotel Palomar Los Angeles - Beverly Hills [Member] Hotel Palomar LA-Westwood [Member] Hotel Palomar LA-Westwood [Member] Union Station Hotel Nashville [Member] Union Station Hotel Nashville [Member] Union Station Hotel Nashville [Member] Ground lease [Axis] Ground lease [Axis] Ground lease [Axis] Ground lease [Domain] Ground lease [Domain] [Domain] for Ground lease [Axis] Primary lease [Member] Primary lease [Member] Primary lease [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Management Agreements [Line Items] Management Agreements [Line Items] Management agreements. Terms of management agreements not including renewals Terms Of Management Agreements Not Including Renewals Terms of management agreements not including renewals. Terms of management agreements including renewals Terms Of Management Agreements Including Renewals Terms of management agreements including renewals. Termination fees range Combined Base And Incentive Management Fees Multiplier Combined base and incentive management fees multiplier. Base management fee from hotel revenues Base Management Fees As Percentage Of Hotel Revenues Base management fees as percentage of hotel revenues. Combined base and incentive management fees Combined Base And Incentive Management Fees Combined base and incentive management fees. Commitments and Contingencies (Textual) [Abstract] Commitments and Contingencies (Textual) [Abstract] Commitments and Contingencies. Reserve funds allowed for hotel maintenance from hotel revenue Reserve Funds As Percentage Of Hotel Revenues Reserve funds as percentage of hotel revenues. Restricted cash Restricted Cash and Cash Equivalents Ground lease expiry period Lease Expiry Period Ground lease expiry period. Base rent increase Base rent increase Base rent increase Base rent Base Rent Base rent. Ground lease percentage rent on hotel revenues Ground lease percentage rent on hotel revenues Ground lease percentage rent on hotel revenues Ground lease percentage rent on retail revenues Ground lease percentage rent on retail revenues Ground lease percentage rent on retail revenues Ground lease percentage rent on hotel revenues Ground lease percentage rent on hotel revenues b Ground lease percentage rent on hotel revenues 2017 and after Ground lease percentage rent on retail and parking revenues Ground lease percentage rent on retail and parking revenues Ground lease percentage rent on retail and parking revenues Number of guest rooms, leasehold interest Number of Guest Rooms Subject to Lease Number of Guest Rooms Subject to Lease Total number of guest rooms Number Of Guest Rooms Total number of guest rooms. Ground lease extension option Lease Extension Option Lease Extension Option Number of extension options Number of Extension Options Number of Extension Options Ground rent expense Operating Leases, Rent Expense Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Stock [Member] Restricted Stock [Member] Performance Shares [Member] Performance Shares [Member] Award Date [Axis] Award Date [Axis] Award Date [Domain] Award Date [Domain] January 2013 [Member] January 2013 [Member] January 2013 [Member] December 2013 [Member] December 2013 [Member] December 2013 [Member] February 2014 [Member] February 2014 [Member] February 2014 [Member] February 2015 [Member] February 2015 [Member] February 2015 [Member] July 2015 [Member] July 2015 [Member] July 2015 [Member] February 2016 [Member] February 2016 [Member] February 2016 [Member] February 2017 [Member] February 2017 [Member] February 2017 [Member] February 2018 [Member] [Member] February 2018 [Member] [Member] February 2018 [Member] Schedule of Share-based Compensation Arrangement By Fair Value Component [Axis] Schedule of Share-based Compensation Arrangement By Fair Value Component [Axis] Schedule of Share-based Compensation Arrangement By Fair Value Component [Axis] Schedule of Share-based Compensation Arrangement By Fair Value Component [Domain] Schedule of Share-based Compensation Arrangement By Fair Value Component [Domain] Schedule of Share-based Compensation Arrangement By Fair Value Component [Domain] Relative TSR [Member] Relative TSR [Member] Relative Total Shareholder Return [Member] Absolute TSR [Member] Absolute TSR [Member] Absolute Total Shareholder Return [Member] EBITDA Comparison [Member] EBITDA Comparison [Member] EBITDA Comparison [Member] Relative & Absolute TSR [Member] Relative & Absolute TSR [Member] Relative & Absolute TSR [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Summary of restricted share activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested shares, Beginning balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unvested shares, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited, shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unvested shares, Ending balance Unvested weighted average grant date fair value, beginning balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted, weighted average grant date fair value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested, weighted average grant date fair value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited, weighted average grant date fair value (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Unvested weighted average grant date fair value, ending balance (in usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Percentage of Total Award ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageofTotalAward ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageofTotalAward Grant Date Fair Value by Component ($ in millions) ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDateFairValue ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDateFairValue Volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Dividend Yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Debt Disclosure [Abstract] Schedule of Debt Summary Schedule of Long-term Debt Instruments [Table Text Block] Summary of service condition restricted share activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Performance-based Equity Awards Methodology and Assumptions Schedule of Share-based Payment Award, Performance Shares, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Performance Shares, Valuation Assumptions [Table Text Block] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Debt Debt Disclosure [Text Block] Statement of Financial Position [Abstract] Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Preferred shares of beneficial interest, liquidation preference value Preferred Stock, Liquidation Preference, Value Preferred shares of beneficial interest, par value (usd per share) Preferred Stock, Par or Stated Value Per Share Preferred shares of beneficial interest, shares authorized Preferred Stock, Shares Authorized Preferred shares of beneficial interest, shares issued Preferred Stock, Shares Issued Preferred shares of beneficial interest, shares outstanding Preferred Stock, Shares Outstanding Common shares of beneficial interest, par value (usd per share) Common Stock, Par or Stated Value Per Share Common shares of beneficial interest, shares authorized Common Stock, Shares Authorized Common shares of beneficial interest, shares issued Common Stock, Shares, Issued Common shares of beneficial interest, shares outstanding Common Stock, Shares, Outstanding Real Estate [Abstract] Investment in Hotel Properties Real Estate Owned [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Share-Based Compensation Plan Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Equity [Abstract] Dividends Payable [Table] Dividends Payable [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Shares [Member] Common Stock [Member] Dividends Payable [Line Items] Dividends Payable [Line Items] Dividends on common shares/units Dividends, Common Stock [Abstract] Dividend per Share/Unit (usd per share) Common Stock, Dividends, Per Share, Declared Record Date Dividends Payable, Date of Record Payable Date Dividends Payable, Date to be Paid Consolidated Statements of Equity [Abstract] Consolidated Statements of Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Preferred Shares [Member] Preferred Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Distributions in Excess of Retained Earnings [Member] Retained Earnings [Member] Parent [Member] Parent [Member] Non-controlling Interests [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Preferred stock, shares outstanding Common stock, shares, outstanding Issuance of shares, net of offering costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Issuance of common shares for Board of Trustees compensation, Shares Number Of Shares Issued For Board Of Trustees Compensation Number of shares issued for board of trustees compensation. Issuance of common shares for Board of Trustees compensation Share Value Issued For Board Of Trustees Compensation Share value issued for board of trustees compensation. Repurchase of common shares, Shares Stock Repurchased During Period, Shares Repurchase of common shares Stock Repurchased During Period, Value Share-based compensation (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Share-based compensation, value Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Distributions on common shares/units Dividends, Common Stock Distributions on preferred shares Dividends, Preferred Stock Net contribution from non-controlling interests Noncontrolling Interest, Increase from Subsidiary Equity Issuance Unrealized gain (loss) on derivative instruments Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Cumulative effect adjustment from adoption of new accounting standard Cumulative Effect of New Accounting Principle in Period of Adoption Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Preferred stock, shares outstanding Common stock, shares, outstanding Ending balance Accounting Policies [Abstract] Marketable securities, shares Marketable securities, shares Marketable securities, shares Investment in marketable securities, unrealized gain (loss) Marketable Securities, Unrealized Gain (Loss) Minimum Percentage of Adjusted Taxable Income to be Distributed to Shareholders as a Real Estate Investment Trust Minimum Percentage of Adjusted Taxable Income to be Distributed to Shareholders as a Real Estate Investment Trust Minimum percentage of adjusted taxable income to be distributed to shareholders as a real estate investment trust Deferred revenues reclassified Contract with Customer, Liability Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land, Buildings and Improvements [Member] Land, Buildings and Improvements [Member] Furniture Fixtures And Equipment [Member] Furniture Fixtures And Equipment [Member] Furniture, fixtures and equipment. Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Estimated useful life (in years) Property, Plant and Equipment, Useful Life Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Senior Unsecured Revolving Credit Facility [Member] Senior Unsecured Revolving Credit Facility [Member] Senior Unsecured Revolving Credit Facility [Member] PHL Unsecured Revolving Credit Facility [Member] PHL Unsecured Revolving Credit Facility [Member] PHL Unsecured Revolving Credit Facility [Member] Unsecured Bridge Loan Facility [Member] Unsecured Bridge Loan Facility [Member] Unsecured Bridge Loan Facility First Term Loan [Member] First Term Loan [Member] First Term Loan [Member] Second Term Loan [Member] Second Term Loan [Member] Second Term Loan [Member] Fourth Term Loan [Member] Fourth Term Loan [Member] Fourth Term Loan [Member] Third Term Loan [Member] Third Term Loan [Member] Third Term Loan [Member] Fifth Term Loan [Member] [Member] Fifth Term Loan [Member] [Member] Fifth Term Loan [Member] [Member] Series A Notes [Member] Series A Notes [Member] Series A Notes [Member] Series B Notes [Member] Series B Notes [Member] Series B Notes [Member] Term Loan Through July 12, 2017 [Member] Term Loan Through July 12, 2017 [Member] Term Loan Through July 12, 2017 [Member] Term Loan July 13, 2017 through January 15, 2020 [Member] Term Loan July 13, 2017 through January 15, 2020 [Member] Term Loan July 13, 2017 through January 15, 2020 [Member] Fourth Term Loan Excluded From Interest Rate Swap Member [Member] Fourth Term Loan Excluded From Interest Rate Swap Member [Member] Fourth Term Loan Excluded From Interest Rate Swap Member [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Unsecured Debt [Member] Unsecured Debt [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Term Loan [Member] Term Loan [Member] Term Loan [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Derivative, by Nature [Axis] Derivative Instrument [Axis] Derivative, Name [Domain] Derivative Contract [Domain] Interest Rate Swap [Member] Interest Rate Swap [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Accordion feature (potential increase) Line Of Credit Facility, Accordion Feature Line Of Credit Facility, Accordion Feature Credit facility borrowings LIBOR rate plus Debt Instrument, Basis Spread on Variable Rate Annual rate of unused commitment fee Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Outstanding borrowings under the credit facility Long-term Line of Credit Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Unused commitment fees Line of Credit Facility, Commitment Fee Amount Debt outstanding Long-term Debt, Gross Payment for financing costs Payments of Financing Costs Borrowings under revolving credit facilities Proceeds from Lines of Credit Notional amount Derivative, Notional Amount Proceeds from issuance of senior long-term debt Proceeds from Issuance of Senior Long-term Debt Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Term loans outstanding Unsecured Debt Derivative Asset Derivative Asset, Fair Value, Gross Asset (Gain) loss on derivative instruments Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net Reclassification from AOCI to interest expense Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Expected reclassifications in next 12 months Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net Estimated fair value of debt Long-term Debt, Fair Value Earnings Per Share [Abstract] Reconciliation of basic and diluted earnings per common share Earnings Per Share Reconciliation [Abstract] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Net income (loss) Attributable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Less: dividends paid on unvested share-based compensation Dividends, Share-based Compensation Undistributed earnings attributable to share based compensation Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net income (loss) available to common shareholders Net Income Loss Available To Common Stockholders Basic And Diluted Net income loss available to common stockholders basic and diluted. Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average number of common shares-basic (shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive share-based compensation (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted-average number of common shares-diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Net income (loss) per share available to common shareholders, basic (usd per share) Earnings Per Share, Basic Net income (loss) per share available to common shareholders, diluted (in usd per share) Earnings Per Share, Diluted Antidilutive securities excluded from computation of earnings per share, amount (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Property, Plant and Equipment, Type [Domain] LaPlaya Beach Resort LaPlaya Beach Resort [Member] LaPlaya Beach Resort [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Insurance settlement Insurance Recoveries Gain on insurance settlement Insured Event, Gain (Loss) Investment in hotel properties Real Estate Investments, Net [Abstract] Land Land Buildings and improvements Investment Building and Building Improvements Furniture, fixtures and equipment Furniture Fixtures And Equipment Furniture, fixtures and equipment. Construction in progress Development in Process Investment in hotel properties Real Estate Investment Property, at Cost Less: Accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Investment in hotel properties, net Real Estate Investment Property, Net Statement of Cash Flows [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Share-based compensation Share-based Compensation (Gain) loss on marketable securities Available-for-sale Securities, Gross Unrealized Gain Amortization of deferred financing costs and mortgage loan premiums Amortization of Debt Issuance Costs and Discounts Gain on sale of hotel properties Gain (Loss) on Sale of Properties Impairment and other losses Other Asset Impairment Charges Non-cash ground rent Amortization of Leased Asset Other Other Noncash Income (Expense) Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Hotel receivables Increase (Decrease) in Accounts Receivable Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Deferred revenues Increase (Decrease) in Customer Deposits Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Improvements and additions to hotel properties Payments for Capital Improvements Deposit received on hotel properties Payments for (Proceeds from) Deposits on Real Estate Acquisitions Proceeds from sale of hotel properties Proceeds from Sale of Property, Plant, and Equipment Investment in marketable securities Payments to Acquire Marketable Securities Sale of marketable securities Proceeds from Sale and Maturity of Marketable Securities Payment for merger consideration Other Payments to Acquire Businesses Purchase of corporate office equipment, software, and furniture Payments to Acquire Productive Assets Property insurance proceeds Proceeds from Insurance Settlement, Investing Activities Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Payment of offering costs — common and preferred shares Payments of Stock Issuance Costs Payment of deferred financing costs Contributions from non-controlling interest Proceeds from Noncontrolling Interests Repayments under revolving credit facilities Repayments of Lines of Credit Proceeds from term loans Proceeds from Issuance of Term Loans Proceeds from Issuance of Term Loans Repayments of mortgage debt Repayments of Secured Debt Repurchase of common shares Payments for Repurchase of Common Stock Distributions — common shares/units Payments of Ordinary Dividends, Common Stock Distributions — preferred shares Payments of Ordinary Dividends, Preferred Stock and Preference Stock Proceeds from refundable membership deposits Proceeds from membership deposits Proceeds from membership deposits Repayments of refundable membership deposits Repayments of membership deposits Repayments of membership deposits Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net change in cash and cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash and cash equivalents and restricted cash, beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents and restricted cash, end of period Income Statement [Abstract] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Occupancy [Member] Occupancy [Member] Food and Beverage [Member] Food and Beverage [Member] Hotel, Owned [Member] Hotel, Owned [Member] Revenues Revenues [Abstract] Total Revenues Revenue from Contract with Customer, Excluding Assessed Tax Expenses: Costs and Expenses [Abstract] Hotel operating expenses: Cost of Goods and Services Sold [Abstract] Hotel operating expenses Cost of Goods and Services Sold Real estate taxes, personal property taxes, property insurance, and ground rent Real estate taxes, personal property taxes, property insurance, and ground rent Real estate taxes, personal property taxes, property insurance, and ground rent General and administrative General and Administrative Expense Impairment and other losses Loss from Catastrophes Gain on insurance settlement Total operating expenses Costs and Expenses Operating income (loss) Operating Income (Loss) Interest income Investment Income, Interest Interest expense Interest Expense Other Other Nonoperating Income (Expense) Gain on sale of hotel properties Gain (Loss) on Sale of Properties, before Applicable Income Taxes Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (expense) benefit Income Tax Expense (Benefit) Net income (loss) Net income (loss) attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to the Company Net Income (Loss) Attributable to Parent Distributions to preferred shareholders Preferred Stock Dividends, Income Statement Impact Net income (loss) attributable to common shareholders Weighted-average number of common shares, basic (in shares) Weighted-average number of common shares, diluted (in shares) Comprehensive Income: Statement of Comprehensive Income [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to the Company Comprehensive Income (Loss), Net of Tax, Attributable to Parent 6.50% Series C [Member] Series C Preferred Stock [Member] 6.375% Series D [Member] Series D Preferred Stock [Member] Dividends on preferred shares/units Dividends, Preferred Stock [Abstract] Dividend per Share (usd per share) Preferred Stock, Dividends Per Share, Declared Basis of Presentation Basis Of Presentation [Policy Text Block] Basis of presentation. Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value Measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Investment in Hotel Properties Investment, Policy [Policy Text Block] Investment in Marketable Securities Marketable Securities, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Share-based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Recent Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Income Tax Disclosure [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] PHL [Member] PHL [Member] PHL [Member] Income Taxes [Line Items] Class of Stock [Line Items] Estimated Effective Tax Rate Combined Federal And State Estimated Effective Tax Rate Combined Federal And State Estimated Effective Tax Rate Combined Federal And State Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer Revenue from Contract with Customer [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Long Term Incentive Partnership Units Class B [Member] LongtermincentivepartnershipunitsclassB [Member] Long Term Incentive Partnership Units Class B [Member] Long Term Incentive Partnership Units [Member] Long Term Incentive Partnership Units [Member] Long term incentive partnership units. December 2013 - Tranche 1 [Member] December 2013 - Tranche 1 [Member] December 2013 - Tranche 1 [Member] December 2013 - Tranche 2 [Member] December 2013 - Tranche 2 [Member] December 2013 - Tranche 2 [Member] December 2013 - Tranche 3 [Member] December 2013 - Tranche 3 [Member] December 2013 - Tranche 3 [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Officer Awards [Member] Officer Awards [Member] Officer Awards [Member] Nonexecutive management award [Member] Nonexecutive management award [Member] Nonexecutive management award [Member] Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-Based Compensation Plan (Textual) [Abstract] Share Based Compensation Plan (Textual) [Abstract] Share based compensation plan. Share-based award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Number of common shares available for issuance under the 2009 Equity Incentive Plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Compensation expense Allocated Share-based Compensation Expense Total unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted average remaining vesting period (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share-based equity award grant (shares) Number of common shares issued Estimated shares expected to vest ShareBasedCompensationArrangementByShareBasedPaymentAward,Estimated Shares Expected to Vest ShareBasedCompensationArrangementByShareBasedPaymentAward,Estimated Shares Expected to Vest Shares expected to vest, not subject to maximum Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Not Subject to Maximum Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Not Subject to Maximum Classes of LTIP Units Classes of LTIP Units Classes of LTIP Units LTIP units granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Value of LTIP grants per share (usd per share) Long Term Incentive Partnership Units Value Per Unit Long Term Incentive Partnership Units Value Per Unit Grant date fair value of LTIP unit awards Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Total Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Total Grant Date Fair Value Operating Partnership outstanding (shares) Long Term Incentive Partnership Units Outstanding Long term incentive partnership units outstanding. LTIP units, vested (shares) Long Term Incentive Partnership Units Vested Long term incentive partnership units vested. Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Hotel Hotel [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] San Francisco, CA San Francisco [Member] San Francisco [Member] Los Angeles, CA Los Angeles [Member] Los Angeles [Member] San Diego, CA San Diego [Member] San Diego [Member] Boston, MA Boston [Member] Boston [Member] Seattle, WA Seattle [Member] Seattle [Member] Portland, OR Portland [Member] Portland [Member] Other Other [Member] Other [Member] Disaggregated revenues by geographic location classified as other Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Disaggregation of Revenue [Abstract] Disaggregation of Revenue [Abstract] Revenue from Hotels Revenue from Contract with Customer, Including Assessed Tax Schedule of Investment in hotel properties Real Estate Investment Financial Statements, Disclosure [Table Text Block] Common Stock [Axis] Common Stock [Axis] Common Stock [Axis] Common stock [Domain] Common stock [Domain] Common stock [Domain] ATMProgram [Member] ATMProgram [Member] ATMProgram [Member] Share Repurchase Program [Member] Share Repurchase Program [Member] Share Repurchase Program [Member] Share Repurchase Program 2 [Member] Share Repurchase Program 2 [Member] Class of Stock [Line Items] Equity (Textual) [Abstract] Equity (Textual) [Abstract] Equity. Common Stock Disclosures [Abstract] Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] March 2014 shelf registration statement maximum amount Mar 2014 Shelf Registration Stmt Maximum Amount Mar 2014 Shelf Registration Stmt Maximum Amount September 2012 shelf registration statement maximum amount Sept 2012 Shelf Registration Stmt Maximum Amount Sept 2012 Shelf Registration Stmt Maximum Amount Amount available under ATM program Amount Available under ATM Amount Available under ATM Share repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Share repurchased, shares Treasury Stock, Shares, Acquired Remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Preferred Stock Disclosures [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred stock, dividend rate, percentage Preferred Stock, Dividend Rate, Percentage Preferred shares of beneficial interest, redemption price per share (usd per share) Preferred Stock, Redemption Price Per Share Share cap on each preferred shares Share Cap On Each Preferred Shares Share cap on each preferred shares. Preferred stock, redemption after change in control Preferred stock, Redemption after change in control Preferred stock, Redemption after change in control LTIP Units Disclosures [Abstract] LTIPUnitsOutstandingVestedandConverted [Abstract] LTIP Units outstanding, vested, and converted to common units [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Reconciliation of basic and diluted earnings per common share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Senior Unsecured Notes [Member] Senior Notes [Member] Mortgages [Member] Mortgages [Member] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] The Westin San Diego Gaslamp Quarter [Member] Westin Gaslamp Quarter [Member] Westin Gaslamp Quarter [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Interest Rate Debt Deferred financing costs, net Debt Issuance Costs, Net Mortgage loan premiums and deferred financing costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Total debt Long-term Debt Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Investment, Name [Axis] Equity Method Investee, Name [Domain] Investment, Name [Domain] Non Cash Investing and Financing Information [Line Items] Interest paid, net of capitalized interest Interest Paid, Including Capitalized Interest, Operating and Investing Activities Income taxes paid Income Taxes Paid Distributions payable on shares/units Dividends Payable Issuance of common shares for Board of Trustees compensation Stock Issued Accrued additions and improvements to hotel properties Accrued Additions And Improvements To Hotel Properties Accrued additions and improvements to hotel properties. Write off of fully depreciated building, furniture, fixtures and equipment Impairment of Long-Lived Assets Held-for-use Write-off of deferred financing costs Write off of Deferred Debt Issuance Cost Business Combinations [Abstract] Acquisition and Disposition of Hotel Properties Business Combination Disclosure [Text Block] Summary of Supplemental Information to Statements of Cash Flows Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Equity Stockholders' Equity Note Disclosure [Text Block] Income Taxes Income Tax Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] LaSalle Hotel Properties [Member] LaSalle Hotel Properties [Member] LaSalle Hotel Properties Business Acquisition [Line Items] Business Acquisition [Line Items] Real Estate [Abstract] Number of hotels owned by the company Number of Real Estate Properties Percentage of Operating Partnership units owned by company Noncontrolling Interest, Ownership Percentage by Parent Percentage of Operating Partnership units owned by other limited partners Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Common Stock, Par or Stated Value Per Share Right to receive in cash (in dollars per share) Business Combination, Common Stock, Right to Receive in Cash, Per Share Business Combination, Common Stock, Right to Receive in Cash, Per Share Fixed exchange ratio Business Combination, Common Stock, Right to Receive, Fixed Exchange Ratio Business Combination, Common Stock, Right to Receive, Fixed Exchange Ratio Maximum percentage of shares available to convert to cash Business Combination, Maximum Percentage Of Shares Available To Convert In Merger Business Combination, Maximum Percentage Of Shares Available To Convert In Merger Business combination, shares to be issued Business combination, shares to be issued Business combination, shares to be issued Payment of termination fee Business Combination, Merger Contract, Termination Fee Business Combination, Merger Contract, Termination Fee Subsequent Event [Table] Subsequent Event [Table] Loan Agreement [Member] Loan Agreement [Member] Loan Agreement [Member] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Principal amount Debt Instrument, Face Amount Term loan, maturity in tranches Term Loan, maturity in tranches Term Loan, maturity in tranches Schedule of Disaggregation of Revenue Revenue from External Customers by Geographic Areas [Table Text Block] Dividends on common shares/units Schedule Of Dividend On Common Stock [Table Text Block] Tabular disclosure of dividend on common stock. Dividends on preferred shares Schedule Of Dividend On Preferred Stock [Table Text Block] Tabular disclosure of dividend on preferred stock. Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Dumont NYC [Member] Dumont NYC [Member] Dumont NYC [Member] Parking garage at Revere Boston Hotel [Member] Parking garage at Revere Boston Hotel [Member] Parking garage at Revere Boston Hotel [Member] Consideration received for asset sold Disposal Group, Including Discontinued Operation, Consideration Impairment loss Impairment of Real Estate Operating income from disposed properties Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, before Income Tax ASSETS Assets [Abstract] Investment in hotel properties, net Investment in marketable securities Equity Securities, FV-NI Ground lease asset, net Intangible Assets, Net (Excluding Goodwill) Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Hotel receivables (net of allowance for doubtful accounts of $153 and $245, respectively) Accounts Receivable, Net Prepaid expenses and other assets Prepaid Expense and Other Assets Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Unsecured revolving credit facilities Term loans, net of unamortized deferred financing costs Unsecured Debt, Net of Financing Costs Unsecured Debt, Net of Financing Costs Senior unsecured notes, net of unamortized deferred financing costs Senior Notes, Net of Deferred Financing Costs Senior Notes, Net of Deferred Financing Costs Mortgage debt, net of unamortized deferred financing costs Secured Debt Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities Deferred revenues Customer Advances and Deposits Accrued interest Interest Payable Distribution payable Total liabilities Liabilities Commitments and contingencies (Note 11) Commitments and Contingencies Shareholders’ equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred shares of beneficial interest, $.01 par value (liquidation preference $250,000 at September 30, 2018 and at December 31, 2017), 100,000,000 shares authorized; 10,000,000 shares issued and outstanding at September 30, 2018 and December 31, 2017 Preferred Stock, Value, Issued Common shares of beneficial interest, $.01 par value, 500,000,000 shares authorized; 68,912,185 issued and outstanding at September 30, 2018 and 68,812,575 issued and outstanding at December 31, 2017 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Distributions in excess of retained earnings Retained Earnings (Accumulated Deficit) Total shareholders’ equity Stockholders' Equity Attributable to Parent Non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Earnings Per Share Earnings Per Share [Text Block]