Fair Value Of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Of Financial Instruments [Abstract]

Schedule Of Estimated Fair Value Of Financial Instruments

	2011				2010
(In thousands)	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Financial Assets
Loans, including held for sale	$	9,208,554	$	9,319,823	$	9,474,733	$	9,482,631
Available for sale investment securities	9,224,702		9,224,702		7,294,303		7,294,303
Trading securities	17,853		17,853		11,710		11,710
Non-marketable securities	115,832		115,832		103,521		103,521
Short-term federal funds sold and securities purchased under agreements to resell	11,870		11,870		10,135		10,135
Long-term securities purchased under agreements to resell	850,000		864,089		450,000		454,783
Interest earning deposits with banks	39,853		39,853		122,076		122,076
Cash and due from banks	465,828		465,828		328,464		328,464
Accrued interest receivable	64,522		64,522		62,512		62,512
Derivative instruments	21,537		21,537		18,823		18,823
Financial Liabilities
Non-interest bearing deposits	$	5,377,549	$	5,377,549	$	4,494,028	$	4,494,028
Savings, interest checking and money market deposits	8,933,941		8,933,941		7,846,831		7,846,831
Time open and C.D.'s	2,488,393		2,493,727		2,744,162		2,761,796
Federal funds purchased and securities sold under agreements to repurchase	1,256,081		1,253,213		982,827		987,472
Other borrowings	111,817		126,397		112,273		122,514
Accrued interest payable	7,510		7,510		12,108		12,108
Derivative instruments	22,722		22,722		19,584		19,584