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