Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
INTEREST INCOME
Loans not covered by FDIC loss share	$ 91,734	$ 95,713	$ 106,062
Loans covered by FDIC loss share	22,767	17,118	4,204
Federal funds sold	7	6	15
Investment securities	12,721	14,583	17,208
Mortgage loans held for sale	637	503	715
Assets held in trading accounts	48	33	30
Interest bearing balances due from banks	1,220	1,100	721
TOTAL INTEREST INCOME	129,134	129,056	128,955
INTEREST EXPENSE
Deposits	10,625	14,925	19,537
Federal funds purchased and securities sold under agreements to repurchase	310	450	532
Other borrowings	3,354	3,512	5,018
Subordinated debentures	1,328	1,509	1,919
TOTAL INTEREST EXPENSE	15,617	20,396	27,006
NET INTEREST INCOME	113,517	108,660	101,949
Provision for loan losses	4,140	11,676	14,129
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	109,377	96,984	87,820
NON-INTEREST INCOME
Trust income	5,473	5,375	5,179
Service charges on deposit accounts	16,808	16,808	17,700
Other service charges and fees	2,961	2,980	2,812
Mortgage lending income	5,997	4,188	4,810
Investment banking income	2,038	1,478	2,236
Credit card fees	17,045	16,828	16,140
Premiums on sale of student loans			2,524
Bank owned life insurance income	1,463	1,481	1,670
Gain on sale of securities, net	2		317
Gain on FDIC assisted transactions	3,411		21,314
Net (loss) gain on assets covered by FDIC loss share agreements	(9,793)	154	318
Other income	2,966	4,173	2,854
TOTAL NON-INTEREST INCOME	48,371	53,465	77,874
NON-INTEREST EXPENSE
Salaries and employee benefits	66,999	65,058	60,731
Occupancy expense, net	8,603	8,443	7,808
Furniture and equipment expense	6,882	6,633	6,093
Other real estate and foreclosure expense	992	678	974
Deposit insurance	2,086	2,387	3,813
Merger related costs	1,896	357	2,611
Other operating expenses	30,275	31,094	29,233
TOTAL NON-INTEREST EXPENSE	117,733	114,650	111,263
INCOME BEFORE INCOME TAXES	40,015	35,799	54,431
Provision for income taxes	12,331	10,425	17,314
NET INCOME	$ 27,684	$ 25,374	$ 37,117
BASIC EARNINGS PER SHARE (in Dollars per share)	$ 1.64	$ 1.47	$ 2.16
DILUTED EARNINGS PER SHARE (in Dollars per share)	$ 1.64	$ 1.47	$ 2.15