Entity Tax Identification Number Entity Tax Identification Number Non-Cumulative Perpetual Preferred Stock, Series B, No Par Value [Member] Non-Cumulative Perpetual Preferred Stock, Series B, No Par Value [Member] Non-Cumulative Perpetual Preferred Stock, Series B, No Par Value [Member] Entity File Number Entity File Number Cover [Abstract] Cover [Abstract] Title of 12(b) Security Title of 12(b) Security Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Common Stock, No Par Value [Member] Common Stock, No Par Value [Member] Common Stock, No Par Value [Member] Soliciting Material Soliciting Material Entity Address, Address Line One Entity Address, Address Line One Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Entity Address, State or Province Entity Address, State or Province Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Written Communications Written Communications NASDAQ - ALL MARKETS [Member] NASDAQ - ALL MARKETS [Member] Trading Symbol Trading Symbol Exchange [Domain] Exchange [Domain] Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] City Area Code City Area Code Non-Cumulative Perpetual Preferred Stock, Series A, No Par Value [Member] Non-Cumulative Perpetual Preferred Stock, Series A, No Par Value [Member] Non-Cumulative Perpetual Preferred Stock, Series A, No Par Value [Member] Document Information [Table] Document Information [Table] Non-Cumulative Perpetual Preferred Stock, Series C, No Par Value Non-Cumulative Perpetual Preferred Stock, Series C, No Par Value [Member] Non-Cumulative Perpetual Preferred Stock, Series C, No Par Value Document Period End Date Document Period End Date Amendment Flag Amendment Flag Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town Security Exchange Name Security Exchange Name Document Information [Line Items] Document Information [Line Items] Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Central Index Key Entity Central Index Key Entity Emerging Growth Company Entity Emerging Growth Company