Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating Activities:
Net income	$ 24,266	$ 7,096
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for credit losses	110,831	160,723
Depreciation and amortization	21,950	22,270
Deferred taxes	(388)	(6,874)
Amortization of intangibles	2,510	2,960
Amortization of debt securities premium and discount, net	16,279	3,612
Share-based compensation expense	1,925	1,100
Security gains, net	(12,109)	(3,039)
Net deferred loan origination expense	(6,419)	(6,777)
Excess tax benefit from exercise of stock options	(12)	(67)
Decrease in interest receivable	7,687	4,854
Decrease in interest payable	(4,319)	(3,014)
Realized gain on mortgages sold	(24,548)	(23,869)
Proceeds from mortgages sold	839,577	968,938
Origination of mortgages held for sale	(822,905)	(988,299)
Increase in bank-owned life insurance	(3,881)	(4,689)
Increase in prepaid pension asset	(373)	(763)
Decrease in prepaid deposit insurance assessments	14,613	11,920
Other, net	17,595	8,272
Net cash provided by operating activities	182,279	154,354
Investing activities:
Proceeds from calls and maturities of held-to-maturity securities	135,781	354,134
Proceeds from calls and maturities of available-for-sale securities	255,577	141,285
Proceeds from sales of available-for-sale securities	273,807	136,769
Purchases of held-to-maturity securities	(151,105)	(679,442)
Purchases of available-for-sale securities	(245,791)	(226,126)
Net decrease (increase) in short-term investments	150,000	(250,000)
Net decrease in loans and leases	146,289	111,917
Purchases of premises and equipment	(13,028)	(14,826)
Proceeds from sale of premises and equipment	1,820	458
Contingency earn-out payment	(1,200)	0
Other, net	(42)	(53)
Net cash provided by (used in) investing activities	552,108	(425,884)
Financing activities:
Net (decrease) increase in deposits	(426,788)	519,162
Net increase (decrease) in short-term debt and other liabilities	6,172	(92,203)
Repayment of long-term debt	(75,000)	(33)
Issuance of common stock	110	534
Excess tax benefit from exercise of stock options	12	67
Payment of cash dividends	(10,853)	(55,093)
Net cash (used in) provided by financing activities	(506,347)	372,434
Increase in cash and cash equivalents	228,040	100,904
Cash and cash equivalents at beginning of period	272,086	238,445
Cash and cash equivalents at end of period	$ 500,126	$ 339,349