Goodwill And Other Intangible Assets (Gross Carrying Value And Accumulated Amortization Of Other Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 49,420	$ 54,119
Accumulated Amortization	(41,634)	(43,849)
Net Carrying Amount	7,786	10,270
Retail Banking [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	49,420	49,420
Accumulated Amortization	(41,634)	(39,150)
Net Carrying Amount	7,786	10,270
Other (HSA Bank) [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	4,699
Accumulated Amortization	0	(4,699)
Net Carrying Amount	$ 0	$ 0