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	$ 26,345	$ 27,258	$ 23,813
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	4,534	9,850	17,800
Depreciation expense	5,783	5,440	5,074
Amortization of mortgage servicing rights	1,472	1,964	1,388
(Recovery)/additional impairment of valuation allowance on mortgage servicing rights	(750)	676	(45)
Securities amortization, net	3,031	4,717	2,693
Amortization of purchased intangible assets	1,868	1,835	1,939
Earnings on cash surrender value of life insurance policies	(1,378)	(1,206)	(1,200)
Gain on life insurance benefit			(141)
Securities gains, net of impairment	(835)	(1,367)	(11,357)
Gain on loans sold	(5,464)	(7,068)	(3,494)
Loans originated for sale	(218,288)	(246,596)	(195,344)
Proceeds from loan sales	234,778	253,259	188,063
Stock based compensation expense	751	491	173
Stock portion of director retainer fee expense	367	338	220
Loss on sale and write-down of OREO	539	1,359	2,744
Prepayment penalty on FHLB advance	2,239	1,313
Change in other assets and liabilities	5,091	1,916	3,734
Net cash provided by operating activities	60,083	54,179	36,060
Investing Activities
Purchases of securities available for sale	(233,958)	(220,543)	(527,834)
Proceeds from calls, maturities, and payments on securities available for sale	125,010	131,130	120,588
Proceeds from sales of securities available for sale	80,151	64,176	366,559
Loan originations and payments, net	(128,650)	(15,060)	102,983
Purchases of premises and equipment	(7,631)	(7,387)	(6,865)
Proceeds from sale of OREO	6,023	12,706	16,346
Purchase of life insurance policies	(504)	(10,000)
Proceeds from redemption of restricted stock	10	217	3,646
Proceeds from life insurance benefit			893
Cash received from branch acquisitions, net	18,157	5,464
Net cash provided/(used) by investing activities	(141,392)	(39,297)	76,316
Financing Activities
Net change in deposits	(6,594)	(11,709)	(51,664)
Net change in other borrowings	4,075	8,730	(7,392)
Proceeds from FHLB advances	665,000	95,000	15,000
Repayment of FHLB advances	(560,433)	(106,688)	(15,638)
Cash dividends on preferred stock	(470)	(1,967)	(2,850)
Cash dividends on common stock	(5,709)	(1,623)	(807)
Purchase of treasury shares	(204)
Repurchase of preferred stock	(15,100)	(40,255)
Repayment of subordinated debentures, net	(4,000)
Proceeds from exercise of stock options, including tax benefit	414	132
Net cash provided/(used) by financing activities	76,979	(58,380)	(63,351)
Net change in cash and cash equivalents	(4,330)	(43,498)	49,025
Cash and cash equivalents, beginning of year	65,650	109,148	60,123
Cash and cash equivalents, end of year	61,320	65,650	109,148
Supplemental cash flow information
Interest paid	10,375	15,382	23,263
Income taxes paid	2,400	3,893	2,672
Supplemental non cash disclosure
Loan balances transferred to foreclosed real estate	$ 4,005	$ 5,286	$ 23,093