Document and Entity Information Series A-2 convertible preferred stock Outstanding nonredeemable series A-2 preferred stock or outstanding series A-2 preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series A2 Convertible Preferred Stock [Member] Stock Issued During Period Value Exercise and Conversion of Preferred Stock Warrants Issuance of common stock upon exercise and conversion of preferred stock warrants Value of the common stock issued during the period as a result of exercise and conversion of the preferred stock warrants. Stock Issued During Period Shares Exercise and Conversion of Preferred Stock Warrants Issuance of common stock upon exercise and conversion of preferred stock warrants (in shares) Number of common stocks issued upon the exercise and conversion of the preferred stock warrants during the current period. Stock Issued During Period Value Exercise of Common Stock Warrants. Issuance of common stock upon exercise of common stock warrants Value of the common stock issued during the period as a result of the exercise of common stock warrants. Stock Issued During Period Share Exercise of Common Stock Warrants Issuance of common stock upon exercise of common stock warrants (in shares) Value of the common stock issued during the period as a result of the exercise of common stock warrants. Interest on note receivable from stockholder Forgiveness of Notes Receivable from Stockholder Represents the amount of note receivable from stockholders that has been forgiven by the entity during the reporting period. Forgiveness of note receivable from stockholder Forgiveness of note receivable from stockholder Interest accrued on note receivable from stockholder Represents the amount of interest accrued on note receivable from stockholders during the reporting period. Interest Accrued on Note Receivable from Stockholder Note Receivable from Stockholder Represents details related to note receivable from stockholders by the entity. Note Receivable from Stockholder [Member] Change in Fair Value of Preferred Stock Warrants Change in fair value of preferred stock warrants This element represents the change in fair value of preferred stock warrants during the reporting period. Amendment Description Unbilled Receivables Escalation of monthly access fees for the entity's network not billed at the end of the reporting period. Unbilled receivables Unbilled receivables Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrued expenses and other liabilities Amendment Flag Interest Accrued on Note Receivable from Stockholder Cash Flow Impact Represents the amount of interest accrued on note receivable from stockholders in operating activities during the reporting period. Interest on note receivable from stockholder Forgiveness on Note Receivable from Stockholder Cash Flow Impact Represent the amount of note receivable from stockholders that have been forgiven by the entity during the reporting period. As non-cash item, it is added to net income when calculating cash provided by or used in operations using the indirect method. Forgiveness of note receivable from stockholder Proceeds from Exercise of Stock Options and Common Stock Warrants Proceeds from exercise of stock options and common stock warrants The cash inflow associated with the amount received from holders exercising their stock options and stock warrants.This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Exercise and Conversion of Preferred Stock Warrants into Common Stock Exercise and conversion of preferred stock warrants into common stock The value of the common stock [noncash or part noncash] in the exercise and conversion of preferred stock warrants into common stock. Noncash or Part Noncash Acquisition, Noncash Service Usage Credits, Issued in Connection With Acquired Assets Service usage credits issued in connection with acquired assets This element represents service usage credits issued in connection with acquired assets during the reporting period. Unpaid Incurred Business Acquisition Contractual Obligations Future cash outflows to pay for liability related to revenue sharing arrangement with previous owners of acquired business entities incurred but unpaid at the end of the reporting period. Contractual obligation related to business acquisition in accrued expenses and other liabilities Noncash or Part Noncash Acquisition, Noncash Acquisition, of Software Maintenance Services Under Capital Lease Acquisition of software maintenance services under capital lease This element represents acquisition of software maintenance services under capital lease during the reporting period. Noncash Stock Issuance Cost The cost incurred directly with the issuance of an equity security which is not paid by the entity and held in liabilities. IPO costs in accounts payable, accrued expenses and other liabilities Offering Costs Related to Stock Options Issued to Non Employee Consultant Offering costs related to stock options issued to non-employee consultant The cost incurred directly with the issuance of stock options to non-employee consultant in non-cash investing and financing transactions. Treasury Stock Amount Retired Non-cash Retirement of treasury stock Non cash amount of Treasury stock retired. Preferred and common stock warrants Preferred and common stock warrants Preferred And Common Stock Warrants Disclosure [Text Block] Represents details related to preferred and common stock warrants in one text block. Common stock warrants Common Stock Warrants Disclosure [Text Block] Common stock warrants Represents the details related to preferred and common stock warrants in one text block. Current Fiscal Year End Date Accounts Receivable, Net, Current Accounts receivable, net of allowances of $177 and $107, respectively Accounts receivable, net Document Period End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Payments to Acquire Businesses, Net of Cash Acquired Contractual payments related to business acquisition Document Fiscal Year Focus Document Fiscal Period Focus Document Type Additional Paid in Capital, Common Stock Additional paid-in capital Payments to Acquire Productive Assets Purchase of acquired assets Depreciation Depreciation and amortization of property and equipment Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowances (in dollars) Amortization of Intangible Assets Amortization of intangible assets Amortization of intangible assets Condensed Consolidated Balance Sheets Earnings Per Share, Basic Basic (in dollars per share) Capital Lease Obligations, Current Current portion of capital leases Long-term portion of capital leases Capital Lease Obligations, Noncurrent Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at beginning of year Cash and cash equivalents at end of year Cash and cash equivalents Interest Paid Cash paid for interest Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Payable Accounts payable Commitments and Contingencies Disclosure [Text Block] Commitments and contingencies Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Common Stock, Value, Issued Common stock, $0.0001 par value; 100,000 shares authorized, 34,562 and 33,584 shares issued and outstanding at March 31, 2012 and December 31, 2011, respectively Total Convertible Preferred Stock Convertible Preferred Stock [Member] Direct Operating Costs Network operations Direct Operating Communications Costs Network access Liabilities, Current Total current liabilities Liabilities, Current [Abstract] Current liabilities: Deferred Income Tax Expense (Benefit) Change in deferred income taxes Deferred Tax Assets, Net, Current Deferred tax assets Deferred Revenue, Current Deferred revenue Deferred Revenue, Noncurrent Deferred revenue, net of current portion Earnings Per Share, Diluted Diluted (in dollars per share) Share-based Compensation Stock-based compensation Restatement Adjustment [Member] Correction of prior years cumulative error General and Administrative Expense General and administrative Condensed Consolidated Statements of Operations Income Tax Disclosure [Text Block] Income taxes Increase (Decrease) in Restricted Cash Increase in restricted cash Intangible Assets, Net (Excluding Goodwill) Other intangible assets, net Goodwill Goodwill Liabilities Total liabilities Liabilities and Equity Total liabilities, convertible preferred stock and stockholders' equity (deficit) Total liabilities and stockholders' equity Liabilities and Equity [Abstract] Liabilities and stockholders' equity Available-for-sale Securities, Current Marketable securities Stockholders' Equity Attributable to Noncontrolling Interest Non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Non-controlling interests distributions Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities Net Income (Loss) Attributable to Parent Net income attributable to Boingo Wireless, Inc. Net income attributable to Boingo Wireless, Inc Net Income (Loss) Available to Common Stockholders, Basic Net income (loss) attributable to common stockholders Nonoperating Income (Expense) Interest and other income (expense), net Operating Income (Loss) Income from operations Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] The business Employee benefit plan Pension and Other Postretirement Benefits Disclosure [Text Block] Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Proceeds from Issuance Initial Public Offering Proceeds from issuance of common stock upon initial public offering Proceeds from Sale and Maturity of Marketable Securities Proceeds from sale of short-term marketable securities Proceeds from Stock Options Exercised Proceeds from exercise of stock options Property, Plant and Equipment, Net Property and equipment, net Property and equipment Payments to Acquire Intangible Assets Payments for patents, trademarks and domain Payments to Acquire Marketable Securities Purchases of marketable securities available-for-sale Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Accounts receivables, net and other receivables Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Related party transactions Related Party Transactions Disclosure [Text Block] Repayments of Long-term Capital Lease Obligations Payments of capital leases Repayments of notes payable Repayments of Notes Payable Payments to Noncontrolling Interests Payments to non-controlling interests Restricted Cash and Cash Equivalents, Current Restricted cash Retained Earnings (Accumulated Deficit) Accumulated deficit Revenue, Net Revenue SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Selling and Marketing Expense Selling and marketing Series B convertible preferred stock Series B Preferred Stock [Member] Series C convertible preferred stock Series C Preferred Stock [Member] Series A convertible preferred stock Series A Preferred Stock [Member] Condensed Consolidated Statements of Cash Flows Condensed Consolidated Statement of Stockholders' Equity Payments of Stock Issuance Costs Offering costs Stockholders' equity Stockholders' Equity Note Disclosure [Text Block] Stockholders' equity Stockholders' Equity Note, Subscriptions Receivable Note receivable from stockholder Goodwill and other intangible assets Goodwill and Intangible Assets Disclosure [Text Block] Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefits from stock-based compensation Income Taxes Paid Cash paid for taxes Temporary Equity [Abstract] Convertible preferred stock: Assets, Current Total current assets Assets, Current [Abstract] Current assets: Treasury Stock Treasury Stock [Member] Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Common Stock Common Stock [Member] Property, Plant and Equipment Disclosure [Text Block] Property and equipment Research and Development Expense Development and technology Assets Total assets Other Liabilities, Noncurrent Other liabilities Deferred Tax Assets, Net, Noncurrent Deferred tax assets Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock incentive plans Scenario, Unspecified [Domain] Statement [Table] Statement, Scenario [Axis] Assets [Abstract] Assets Statement Statement [Line Items] Capital Lease Obligations Incurred Acquisition of software, equipment and software maintenance services under capital leases Fair Value Disclosures [Text Block] Fair value measurement Total convertible preferred stock Temporary Equity, Carrying Amount Total convertible preferred stock Temporary Equity, Shares Authorized Convertible preferred stock, shares authorized Temporary Equity, Shares Issued Convertible preferred stock, shares issued Temporary Equity, Shares Outstanding Convertible preferred stock, shares outstanding Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided by (used in) financing activities Net cash used in financing activities Class of Stock [Domain] Treasury Stock, Value Treasury stock at cost, 1,257 shares Treasury stock at cost, 1,257 shares Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Stockholders' Equity, Period Increase (Decrease) Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Increase (Decrease) in Deferred Revenue Deferred revenue Other Assets, Noncurrent Other assets Net income (loss) per share attributable to common stockholders: Net income (loss) per share attributable to common stockholders: Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes Class of Stock [Axis] Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Treasury Stock, Shares Treasury stock, shares Stockholders' Equity Attributable to Parent Total common stockholders' equity (deficit) Total common stockholders' equity Income Tax Expense (Benefit) Income taxes Scenario, Previously Reported [Member] as reported Preferred Stock, Value, Issued Preferred stock, $0.0001 par value, 5,000 shares authorized, no shares issued and outstanding Statement, Equity Components [Axis] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Deficit Retained Earnings [Member] Equity Component [Domain] Capital Expenditures Incurred but Not yet Paid Property and equipment and software maintenance costs in accounts payable, accrued expenses and other liabilities Issuance of common stock upon initial public offering Stock Issued During Period, Value, New Issues Stock Issued During Period, Value, Stock Options Exercised Issuance of common stock upon exercise of stock options Issuance of common stock upon initial public offering (in shares) Stock Issued During Period, Shares, New Issues Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Issuance of common stock upon exercise of stock options (in shares) Issuance of common stock upon conversion of preferred stock (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Stock Issued During Period, Shares, Period Increase (Decrease) Net income attributable to common stockholders, diluted Net Income (Loss) Available to Common Stockholders, Diluted Fair value of preferred stock warrant liability, if converted Dilutive Securities, Effect on Basic Earnings Per Share Offering costs Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Costs and Expenses [Abstract] Costs and operating expenses: Costs and Expenses Total costs and operating expenses Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock Accretion of convertible preferred stock Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental disclosure of non-cash investing and financing activities Excess tax benefits from stock-based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Earnings Per Share [Text Block] Net income (loss) per share attributable to common stockholders: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net income Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to non-controlling interests Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average shares used in computing net income (loss) per share attributable to common stockholders: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance Balance Total stockholders' equity (deficit) Total stockholders' equity Non-Controlling Interests Noncontrolling Interest [Member] Commitments and Contingencies. Commitments and contingencies (Note 8) Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income including non-controlling interests to net cash provided by operating activities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses and other liabilities Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation expense Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Temporary Equity, Par or Stated Value Per Share Convertible preferred stock, par value (in dollars per share) Temporary Equity, Liquidation Preference Convertible preferred stock, liquidation preference (in dollars) Temporary Equity, Accretion to Redemption Value, Adjustment Accretion of convertible preferred stock Accretion of convertible preferred stock Proceeds from sale of long-term marketable securities Proceeds from Sale of Long-term Investments Treasury Stock, Retired, Cost Method, Amount Retirement of treasury stock Retirement of treasury stock Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accrued expenses and other liabilities Payments for business acquisition, net of cash acquired Payments to Acquire Business Two, Net of Cash Acquired Net Cash Provided by (Used in) Continuing Operations Net decrease in cash and cash equivalents Proceeds from issuance of common stock upon exercise of preferred stock warrants Proceeds from Warrant Exercises Summary of significant accounting policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Cash and cash equivalents and marketable securities Accrued expenses and other liabilities The business Cash and cash equivalents and marketable securities Cash, Cash Equivalents, and Marketable Securities [Text Block] Shares, Outstanding Balance (in shares) Balance (in shares) Accounts receivables, net and other receivables Commitments and contingencies Income taxes Goodwill and other intangible assets Fair value measurement Subsequent Events [Text Block] Subsequent events: Employee benefit plan Quarterly Financial Data (Unaudited) Stock incentive plans Summary of significant accounting policies Related party transactions Subsequent events: SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS Conversion of Stock, Amount Issued Conversion of convertible preferred stock into common stock Additional purchase price for acquired assets in accrued expenses and other liabilities Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Issuance of common stock upon conversion of preferred stock Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments