Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 124,357	$ 362,971
Securities available for sale	582,321	645,948
Securities to be held to maturity (fair value of $26,287 in 2012 and $28,342 in 2011)	25,769	28,074
Mortgage loans held for sale	4,093	4,392
Loans, net of allowance for loan losses of $22,510 and $24,063 (2012 and 2011)	2,417,884	2,261,232
Federal Home Loan Bank stock, at cost	28,391	25,980
Premises and equipment, net	32,962	34,681
Goodwill	10,168	10,168
Other assets and accrued interest receivable	52,855	46,545
TOTAL ASSETS	3,278,800	3,419,991
Deposits
Non interest-bearing	513,136	408,483
Interest-bearing	1,392,155	1,325,495
Total deposits	1,905,291	1,733,978
Securities sold under agreements to repurchase and other short-term borrowings	194,412	230,231
Federal Home Loan Bank advances	538,555	934,630
Subordinated note	41,240	41,240
Other liabilities and accrued interest payable	59,589	27,545
Total liabilities	2,739,087	2,967,624
STOCKHOLDERS' EQUITY
Preferred stock, no par value
Class A Common Stock and Class B Common Stock, no par value	4,948	4,947
Additional paid in capital	132,491	131,482
Retained earnings	397,058	311,799
Accumulated other comprehensive income	5,216	4,139
Total stockholders' equity	539,713	452,367
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 3,278,800	$ 3,419,991