CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:
Net income	$ 44,422	$ 36,554	$ 34,102
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,021	7,847	7,488
Net OTTI recognized in earnings	0	109	160
Provision (credit) for loan and lease losses	(1,084)	3,649	1,428
Share based compensation expense	1,688	1,451	1,207
Deferred income tax expense	3,348	3,933	6,678
Origination of loans held for sale	(251,878)	(310,860)	(229,631)
Proceeds from sales of loans held for sale	284,291	305,013	230,232
Gains on sales of loans held for sale	(4,629)	(4,961)	(3,225)
Loss on sales of other real estate owned	1,064	1,595	2,078
Investment securities gains	(115)	(459)	(292)
Gains (loss) on sales of premises and equipment	20	(74)	120
Net (increase) decrease in accrued interest receivable	(140)	521	(328)
Net (increase) decrease in other assets	4,053	(2,421)	(691)
Net increase (decrease) in accrued expenses and other liabilities	(5,965)	6,939	12,491
Other - net	13,046	3,954	5,893
Net cash provided by operating activities	96,142	52,790	67,710
Investing activities:
Purchases of other equity securities	(7,051)	(6,780)	(2,910)
Purchases of investments held-to-maturity	(20,666)	(146,290)	(161,102)
Purchases of investments available-for-sale	(161,379)	(264,993)	(370,657)
Net proceeds from redemption of Federal Home Loan Bank of Atlanta stock	0	8,002	2,048
Proceeds from sales of investment available-for-sale	0	28,519	0
Proceeds from maturities, calls and principal payments of investments held-to-maturity	11,090	108,612	84,409
Proceeds from maturities, calls and principal payments of investments available-for-sale	198,410	357,144	347,864
Net increase in loans and leases	(259,008)	(140,483)	(103,994)
Proceeds from the sales of other real estate owned	7,780	4,934	8,801
Acquisition of business activity, net of cash acquired	0	(849)	0
Expenditures for premises and equipment	(2,366)	(4,381)	(4,003)
Net cash used in investing activities	(233,190)	(56,565)	(199,544)
Financing activities:
Net increase (decrease) in deposits	(35,809)	86,593	106,648
Net increase (decrease) in retail repurchase agreements and federal funds purchased	(33,087)	(56,685)	47,370
Proceeds from advances from FHLB	1,075,000	0	0
Repayment of advances from FHLB	(865,058)	(350)	(350)
Proceeds from issuance of common stock	153	98	314
Remittances due to vesting of restricted stock	0	0	(334)
Tax benefits associated with shared based compensation	0	102	91
Redemption of stock warrant	0	0	(4,449)
Dividends paid	(16,130)	(11,891)	(8,259)
Net cash provided by financing activities	125,069	17,867	141,031
Net increase (decrease) in cash and cash equivalents	(11,979)	14,092	9,197
Cash and cash equivalents at beginning of period	86,406	72,314	63,117
Cash and cash equivalents at end of period	74,427	86,406	72,314
Supplemental Disclosures:
Interest payments	19,610	22,464	20,334
Income tax payments	20,010	13,266	9,704
Transfers from loans to other real estate owned	$ 2,764	$ 4,810	$ 6,398