CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net earnings	$ 20,821	$ 23,517
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	10,730	8,732
Provision for credit losses	(6,345)	22,100
Gain on sale of other real estate owned	(2,479)	(4,387)
Provision for losses on other real estate owned	5,786	4,734
Gain on sale of leases	(1,393)
Loss (gain) on sale of premises and equipment	160	(18)
Other-than-temporary impairment loss on covered security	1,115
Restricted stock amortization	3,256	4,392
Tax effect included in stockholders' equity of restricted stock vesting	(156)	183
Decrease (increase) in accrued and deferred income taxes, net	7,264	(5,428)
Decrease in FDIC loss sharing asset	18,786	13,446
Decrease in other assets	10,500	2,498
Decrease in accrued interest payable and other liabilities	(17,932)	(5,683)
Net cash provided by operating activities	50,113	64,086
Cash flows from investing activities:
Net cash used in acquisitions	(42,306)
Net decrease in loans and leases	204,368	275,593
Proceeds from sale of loans and leases	22,693	2,495
Securities available-for-sale:
Proceeds from maturities and paydowns	169,630	87,735
Purchases	(186,387)	(262,173)
Net redemptions of FHLB stock	4,370	4,449
Proceeds from sales of other real estate owned	26,213	37,559
Purchases of premises and equipment, net	(1,827)	(3,398)
Proceeds from sales of premises and equipment	691	21
Net cash provided by investing activities	197,445	142,281
Net increase (decrease) in deposits:
Noninterest-bearing	186,660	133,848
Interest-bearing	(172,784)	(297,051)
Restricted stock surrendered	(1,374)	(302)
Tax effect included in stockholders' equity of restricted stock vesting	156	(183)
Net decrease in borrowings	(225,220)
Redemption of subordinated debentures	(18,558)
Repayment of acquired debt	(175,481)
Cash dividends paid	(13,105)	(726)
Net cash used in financing activities	(419,706)	(164,414)
Net (decrease) increase in cash and cash equivalents	(172,148)	41,953
Cash and cash equivalents, beginning of period	295,617	108,552
Cash and cash equivalents, end of period	123,469	150,505
Supplemental disclosures of cash flow information:
Cash paid for interest	12,778	17,623
Cash paid for income taxes	6,229	22,315
Loans transferred to other real estate owned	19,721	48,513
Goodwill resolution included in FDIC loss sharing asset		$ 7,636