Document And Entity Information [Abstract] Document and Entity Information. Title of 12(b) Security Title of 12(b) Security Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Central Index Key Entity Central Index Key Entity Emerging Growth Company Entity Emerging Growth Company Document Type Document Type Document Period End Date Document Period End Date Entity Registrant Name Entity Registrant Name Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Amendment Flag Amendment Flag Pre-commencement Tender Offer Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Soliciting Material Soliciting Material Written Communications Written Communications