CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 97,690	$ 137,691
Securities available for sale	420,331	438,246
Securities to be held to maturity (fair value of $55,704 in 2013 and $46,416 in 2012)	55,169	46,010
Mortgage loans held for sale	24,174	10,614
Loans, net of allowance for loan losses of $22,491 and $23,729 (2013 and 2012)	2,595,538	2,626,468
Federal Home Loan Bank stock, at cost	28,342	28,377
Premises and equipment, net	32,629	33,197
Goodwill	10,168	10,168
Other real estate owned	15,248	26,203
Other assets and accrued interest receivable	37,776	37,425
TOTAL ASSETS	3,317,065	3,394,399
Deposits
Non interest-bearing	487,787	479,046
Interest-bearing	1,483,260	1,503,882
Total deposits	1,971,047	1,982,928
Securities sold under agreements to repurchase and other short-term borrowings	128,532	250,884
Federal Home Loan Bank advances	592,044	542,600
Subordinated note	41,240	41,240
Other liabilities and accrued interest payable	40,135	40,045
Total liabilities	2,772,998	2,857,697
STOCKHOLDERS' EQUITY
Preferred stock, no par value
Class A Common Stock and Class B Common Stock, no par value	4,890	4,932
Additional paid in capital	132,005	132,686
Retained earnings	403,212	393,472
Accumulated other comprehensive income	3,960	5,612
Total stockholders' equity	544,067	536,702
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 3,317,065	$ 3,394,399