CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest income:
Loans and leases	$ 63,168	$ 61,010	$ 63,312	$ 124,178	$ 128,064
Investment securities	8,414	8,216	9,558	16,630	19,138
Deposits in financial institutions	49	43	20	92	88
Total interest income	71,631	69,269	72,890	140,900	147,290
Interest expense:
Deposits	2,077	2,649	3,336	4,726	6,940
Borrowings	199	144	293	343	2,218
Subordinated debentures	882	783	848	1,665	2,039
Total interest expense	3,158	3,576	4,477	6,734	11,197
Net interest income	68,473	65,693	68,413	134,166	136,093
Total provision (negative provision) for credit losses	(1,842)	3,137	(271)	1,295	(6,345)
Net interest income after provision for credit losses	70,315	62,556	68,684	132,871	142,438
Noninterest income:
Service charges on deposit accounts	2,767	2,863	3,328	5,630	6,681
Other commissions and fees	2,154	1,933	2,095	4,087	3,978
Gain on sale of leases	279	225	403	504	1,393
Gain on sale of securities		409		409
Other-than-temporary impairment loss on covered security			(1,115)		(1,115)
Increase in cash surrender value of life insurance	221	433	295	654	660
FDIC loss sharing expense, net	(5,410)	(3,137)	(102)	(8,547)	(3,681)
Other income	192	114	(33)	306	217
Total noninterest income	203	2,840	4,871	3,043	8,133
Noninterest expense:
Compensation	26,057	25,350	23,699	51,407	47,886
Occupancy	7,480	6,598	7,088	14,078	14,376
Data processing	2,455	2,233	2,258	4,688	4,538
Other professional services	2,240	2,097	2,378	4,337	4,148
Business development	798	736	581	1,534	1,219
Communications	622	613	626	1,235	1,234
Insurance and assessments	1,267	1,261	1,323	2,528	2,616
Non-covered other real estate owned, net	80	313	130	393	1,951
Covered other real estate owned, net	(94)	(813)	2,130	(907)	2,952
Intangible asset amortization	1,284	1,176	1,737	2,460	3,472
Acquisition and integration	17,997	692	871	18,689	896
Debt termination					22,598
Other expense	4,030	3,927	4,764	7,957	8,594
Total noninterest expense	64,216	44,183	47,585	108,399	116,480
Earnings from continuing operations before income taxes	6,302	21,213	25,970	27,515	34,091
Income tax expense	(1,906)	(7,719)	(10,413)	(9,625)	(13,270)
Net earnings from continuing operations	4,396	13,494	15,557	17,890	20,821
Loss from discontinued operations before income taxes	(81)			(81)
Income tax benefit	34			34
Net loss from discontinued operations	(47)			(47)
Net earnings	$ 4,349	$ 13,494	$ 15,557	$ 17,843	$ 20,821
Basic earnings per share:
Net earnings from continuing operations (in dollars per share)	$ 0.11	$ 0.37	$ 0.42	$ 0.47	$ 0.57
Net earnings (in dollars per share)	$ 0.11	$ 0.37	$ 0.42	$ 0.47	$ 0.57
Diluted earnings per share:
Net earnings from continuing operations (in dollars per share)	$ 0.11	$ 0.37	$ 0.42	$ 0.47	$ 0.57
Net earnings (in dollars per share)	$ 0.11	$ 0.37	$ 0.42	$ 0.47	$ 0.57
Dividends declared per share (in dollars per share)	$ 0.25	$ 0.25	$ 0.18	$ 0.50	$ 0.36