Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Operating Activities:
Net income	$ 34,383		$ 41,969
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,032		7,037
Loan loss provision	4,600		5,600
Net amortization of deferred loan fees	(202)		(303)
Decrease in interest income receivable	88		1,004
Increase in net deferred tax asset	(2,644)		(6,275)
Decrease (increase) in other assets	8,174		(3,386)
Stock option compensation expense	730		805
Tax benefit decrease (increase) upon exercise of stock options	201		(2)
Increase (decrease) in income taxes payable	30		(1,186)
Increase (decrease) in interest expense payable	9		(129)
(Decrease) increase in other liabilities	(5,482)		2,160
Loss on sale of securities available for sale			1,287
Gain on sale of other assets	(548)		(256)
Net loss on sale of premises and equipment	9		1
Originations of mortgage loans for resale	(240)		(27)
Proceeds from sale of mortgage loans originated for resale	241		28
Net gain on sale of foreclosed assets	(556)		(2,041)
Writedown of foreclosed assets	1,062		1,925
Net Cash Provided by Operating Activities	48,887		48,211
Investing Activities:
Net repayments of loans	167,500		194,740
Proceeds from FDIC1 loss-sharing indemnification	4,039	[1]	20,259	[1]
Purchases of investment securities available for sale	(275,460)		(137,378)
Proceeds from sale/maturity/calls of securities available for sale	77,558		70,249
Purchases of investment securities held to maturity	(87,643)		(405,281)
Proceeds from maturity/calls of securities held to maturity	107,428		106,080
Purchases of premises and equipment	(1,110)		(2,637)
Net change in FRB2/FHLB3 securities	1,488	[2],[3]	895	[2],[3]
Proceeds from sale of foreclosed assets	9,401		16,632
Net Cash Provided by (Used in) Investing Activities	3,201		(136,441)
Financing Activities:
Net change in deposits	(130,915)		(41,048)
Net change in short-term borrowings and FHLB3 advances	12,952	[3]	(34,106)	[3]
Exercise of stock options	6,414		1,030
Tax benefit (decrease) increase upon exercise of stock options	(201)		2
Retirement of common stock including repurchases	(27,393)		(26,081)
Common stock dividends paid	(20,051)		(20,687)
Net Cash Used in Financing Activities	(159,194)		(120,890)
Net Change In Cash and Due from Banks	(107,106)		(209,120)
Cash and Due from Banks at Beginning of Period	491,382		530,045
Cash and Due from Banks at End of Period	384,276		320,925
Supplemental disclosure of non cash activities:
Loan collateral transferred to other real estate owned	3,932		4,108
Supplemental disclosure of cash flow activities:
Interest paid for the period	2,722		3,602
Income tax payments for the period	$ 12,779		$ 21,631

[1] Federal Deposit Insurance Corporation ("FDIC")

[2] Federal Reserve Bank ("FRB")

[3] Federal Home Loan Bank ("FHLB")