Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities
Net Income	$ 8,902	$ 5,779
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses and losses on covered loans	20,185	(422)
Stock-based compensation expense	450	335
Depreciation, amortization and accretion	16,141	3,774
Net realized gain on sale of securities	62	0
Net realized gain on sale of other assets	(21)	(3)
Net realized (gain) loss on sale of other real estate owned	(2,954)	(2,712)
Gain on termination of cash flow hedging instruments	0	(222)
Write-down on other real estate owned	3,127	1,925
Net change in:
Loans held for sale	82	212
Interest receivable	(750)	(1,725)
Interest payable	(148)	(251)
Other assets	(1,166)	13,736
Other liabilities	(8,403)	(766)
Net cash provided by operating activities	35,383	19,660
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected	(16,814)	51,870
Purchases of securities available for sale	(30,177)	(149,799)
Purchases of premises and equipment	(6,682)	(2,461)
Proceeds from FDIC reimbursement on loss-sharing asset	14,804	0
Proceeds from sales of securities available for sale	3,845	0
Proceeds from principal repayments and maturities of securities available for sale	49,654	27,315
Proceeds from disposal of premises and equipment	0	20
Proceeds from sales of covered other real estate owned	8,025	6,959
Proceeds from sales of other real estate and other personal property owned	7,829	5,372
Capital improvements on other real estate properties	(90)	(251)
Decrease in Small Business Administration secured borrowings	0	(558)
Net cash provided by (used in) investing activities	30,394	(61,533)
Cash Flows From Financing Activities
Net increase in deposits	49,916	8,944
Proceeds from Federal Home Loan Bank advances	0	100
Proceeds from Federal Reserve Bank borrowings	0	100
Proceeds from exercise of stock options	308	380
Repayment of Federal Home Loan Bank advances	(4,210)	(4,140)
Repayment of Federal Reserve Bank borrowings	0	(100)
Payment of common stock dividends	(14,623)	(1,181)
Payments for purchase and retirement of common stock	0	(32)
Net cash provided by financing activities	31,391	4,071
Increase (Decrease) in cash and cash equivalents	97,168	(37,802)
Cash and cash equivalents at beginning of period	294,289	514,130
Cash and cash equivalents at end of period	391,457	476,328
Supplemental Information:
Cash paid for interest	2,797	4,413
Cash paid for income tax	0	0
Non-cash investing activities
Loans transferred to other real estate owned	$ 6,092	$ 5,467