CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 36,153	$ 35,074	$ 29,724
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	2,400	2,700	4,700
Depreciation of premises and equipment	3,283	3,213	3,174
Foreclosed and repossessed property valuation adjustments	79	350	642
Net gain on sale of premises	0	(358)	(211)
Net amortization of premium and discount	1,401	2,127	1,768
Net amortization of intangibles	680	728	951
Non–cash charitable contribution	0	0	990
Share–based compensation	1,876	1,962	1,394
Deferred income tax expense (benefit)	2,267	1,328	(863)
Income from bank-owned life insurance	(1,850)	(2,448)	(1,939)
Net gains on loan sales and commissions on loans originated for others	(13,085)	(14,092)	(5,074)
Net realized gains on securities	0	(1,223)	(698)
Net impairment losses recognized in earnings	3,489	221	191
Net gains on interest rate swap contracts	(951)	(255)	(6)
Equity in (earnings) losses of unconsolidated subsidiaries	107	(196)	213
Proceeds from sales of loans	415,186	479,925	208,275
Loans originated for sale	(369,045)	(495,271)	(206,242)
Decrease (increase) in other assets	2,589	(7,987)	(2,804)
(Decrease) increase in other liabilities	(3,729)	(331)	3,014
Net cash provided by operating activities	80,850	5,467	37,199
Cash flows from investing activities:
Purchases of mortgage-backed securities available for sale	(91,928)	0	(115,208)
Purchases of other investment securities available for sale	(25,404)	0	(5,000)
Purchases of mortgage-backed securities held to maturity	0	0	(53,720)
Proceeds from sales of mortgage-backed securities available for sale	0	40,222	46,889
Proceeds from sales of other investment securities available for sale	0	6,338	9,572
Maturities and principal payments of mortgage-backed securities available for sale	77,644	111,906	115,500
Maturities and principal payments of other investment securities available for sale	10,720	1,411	855
Maturities and principal payments of mortgage-backed securities held to maturity	9,993	11,177	1,489
Remittance of Federal Home Loan Bank stock	2,688	1,590	0
Net increase in loans	(208,125)	(138,084)	(148,652)
Proceeds from sale of portfolio loans	49,588	0	0
Purchases of loans, including purchased interest	(10,645)	(10,469)	(9,677)
Proceeds from the sale of property acquired through foreclosure or repossession	2,588	3,366	2,190
Purchases of premises and equipment	(1,491)	(5,110)	(3,644)
Net proceeds from sale of bank property	0	1,571	1,279
Proceeds from bank-owned life insurance	0	1,419	0
Repayment of investment in capital trust	310	0	0
Equity investment in real estate limited partnership	0	0	(449)
Net cash (used in) provided by investing activities	(184,062)	25,337	(158,576)
Cash flows from financing activities:
Net increase in deposits	192,690	186,316	89,985
Net decrease in other borrowings	(1,034)	(18,546)	(3,601)
Proceeds from Federal Home Loan Bank advances	204,000	627,179	514,475
Repayment of Federal Home Loan Bank advances	(277,090)	(806,457)	(472,747)
Proceeds from issuance of common stock under dividend reinvestment plan	0	0	754
Proceeds from stock option exercises and issuance of other equity instruments	3,681	1,257	885
Tax benefit from stock option exercises and other equity instruments	570	210	115
Cash dividends paid	(16,628)	(15,133)	(14,205)
Redemption of junior subordinated debentures	(10,310)	0	0
Net cash provided by (used in) financing activities	95,879	(25,174)	115,661
Net (decrease) increase in cash and cash equivalents	(7,333)	5,630	(5,716)
Cash and cash equivalents at beginning of year	92,650	87,020	92,736
Cash and cash equivalents at end of year	85,317	92,650	87,020
Noncash Investing and Financing Activities:
Loans charged off	6,022	2,335	3,834
Loans transferred to property acquired through foreclosure or repossession	1,471	3,167	2,031
OREO proceeds due from attorney	0	132	0
Supplemental Disclosures:
Interest payments	24,194	29,657	35,594
Income tax payments	$ 13,618	$ 14,777	$ 13,390