Consolidated Condensed Statements Of Cash Flow - USD ($)		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income/(loss)		$ 52,213,000	$ (72,405,000)
Adjustments to reconcile net income/(loss) to net cash provided/(used) by operating activities:
Provision for loan losses		3,000,000	5,000,000
Provision/(benefit) for deferred income taxes		4,293,000	(25,254,000)
Depreciation and amortization of premises and equipment		8,122,000	9,144,000
Amortization of intangible assets		1,300,000	1,299,000
Net other amortization and accretion		4,730,000	4,613,000
Net (increase)/decrease in derivatives		(321,000)	713,000
Fair value adjustment to foreclosed real estate		536,000	376,000
Litigation and regulatory matters		(375,000)	162,522,000
Stock-based compensation expense		3,941,000	3,024,000
(Tax benefit)/benefit reversal stock-based compensation expense		17,000	(22,000)
Equity securities (gains)/losses, net		80,000	(276,000)
Debt securities (gains)/losses, net		(1,654,000)	0
Net (gains)/losses on sale/disposal of fixed assets		3,684,000	(13,000)
Loans held-for-sale:
Purchases		(148,000)	(854,000)
Gross proceeds from settlements and sales		10,311,000	10,080,000
(Gain)/loss due to fair value adjustments and other		(91,000)	(1,899,000)
Net (increase)/decrease in:
Trading securities		(346,558,000)	(338,597,000)
Fixed income receivables		(51,194,000)	(148,174,000)
Interest receivable		(8,352,000)	(5,415,000)
Other assets		19,223,000	(19,442,000)
Net increase/(decrease) in:
Trading liabilities		172,634,000	218,827,000
Fixed income payables		33,327,000	73,019,000
Interest payable		10,206,000	7,750,000
Other liabilities		(29,942,000)	(25,602,000)
Total adjustments		(163,231,000)	(69,181,000)
Net cash provided/(used) by operating activities		(111,018,000)	(141,586,000)
Available-for-sale securities:
Sales		961,000	276,000
Maturities		135,503,000	142,858,000
Purchases		(159,066,000)	(231,534,000)
Premises and equipment:
Sales		1,356,000	2,849,000
Purchases		(11,890,000)	(10,053,000)
Net (increase)/decrease in:
Loans		112,474,000	(507,890,000)
Interests retained from securitizations classified as trading securities		1,487,000	525,000
Interest-bearing cash		(349,084,000)	1,183,334,000
Net cash provided/(used) by investing activities		(268,259,000)	580,365,000
Common stock:
Stock options exercised		157,000	3,340,000
Cash dividends paid		(14,347,000)	(11,749,000)
Repurchase of shares	[1]	(75,763,000)	(16,767,000)
Tax benefit/(benefit reversal) stock-based compensation expense		(17,000)	22,000
Cash dividends paid - preferred stock - noncontrolling interest		(2,820,000)	(2,945,000)
Cash dividends paid - Series A preferred stock		(1,550,000)	(1,550,000)
Term borrowings:
Payments/maturities		(6,155,000)	(307,834,000)
Net increase/(decrease) in:
Deposits		360,685,000	569,782,000
Short-term borrowings		170,193,000	(585,090,000)
Net cash provided/(used) by financing activities		430,383,000	(352,791,000)
Net increase/(decrease) in cash and cash equivalents		51,106,000	85,988,000
Cash and cash equivalents at beginning of period		1,031,063,000	1,071,405,000
Cash and cash equivalents at end of period		1,082,169,000	1,157,393,000
Supplemental Disclosures
Total interest paid		11,223,000	13,218,000
Total taxes paid		617,000	10,554,000
Total taxes refunded		2,281,000	187,000
Transfer from loans to other real estate owned		$ 732,000	$ 3,462,000

[1] 2016 and 2015 include $ 75.0 million and $ 15.8 million, respectively, repurchased under share repurchase programs.