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