Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 41,783	$ 39,227
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,500	15,000
Depreciation and amortization of premises and equipment	6,629	6,171
Net amortization of investment securities premiums	1,435	3,846
Investment securities gains, net	0	(2,473)
Net (increase) decrease in loans held for sale	(3,066)	4,854
Amortization of intangible assets	315	534
Stock-based compensation	1,033	847
Excess tax benefit from share-based compensation	(25)	(88)
Decrease in accrued interest receivable	661	(1,699)
Decrease in other assets	7,271	7,074
Decrease in accrued interest payable	1,754	2,063
Decrease in other liabilities	182	(11,713)
Total adjustments	18,689	24,416
Net cash provided by operating activities	60,472	63,643
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sales of securities available for sale	12,548	56,896
Proceeds from maturities of securities held to maturity	0	35
Proceeds from maturities of securities available for sale	79,045	199,910
Purchase of securities available for sale	(11,700)	(334,660)
Decrease in short-term investments	(58,901)	73,275
Net increase in loans	40,017	(249,229)
Net purchases of premises and equipment	(6,255)	(5,202)
Net cash used in investing activities	54,754	(258,975)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in demand and savings deposits	94,093	19,339
Net decrease in time deposits	84,638	(115,042)
Decrease in short-term borrowings	(188,945)	258,567
Repayments of long-term debt	(123)	(5,042)
Net proceeds from issuance of stock	2,152	2,647
Excess tax benefit from share-based compensation	25	88
Dividends paid	(15,413)	0
Acquisition of treasury stock	(49,804)	(47,046)
Net cash used in financing activities	(73,377)	113,511
Net (Decrease) Increase in Cash and Due From Banks	41,849	(81,821)
Cash and Due From Banks at Beginning of Period	218,540	256,300
Cash and Due From Banks at End of Period	260,389	174,479
Cash paid during the period for:
Interest	17,473	19,615
Income taxes	$ 631	$ 5,086