CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 198,172	$ 210,082
Securities available for sale	518,764	517,058
Securities held to maturity (fair value of $37,834 in 2016 and $39,196 in 2015)	37,841	38,727
Mortgage loans held for sale, at fair value	7,148	4,083
Other loans held for sale, at the lower of cost or fair value	981	514
Loans	3,351,969	3,326,610
Allowance for loan and lease losses	(31,475)	(27,491)
Loans, net	3,320,494	3,299,119
Federal Home Loan Bank stock, at cost	28,208	28,208
Premises and equipment, net	29,125	29,921
Premises, held for sale	1,152	1,185
Goodwill	10,168	10,168
Other real estate owned	1,280	1,220
Bank owned life insurance	53,156	52,817
Other assets and accrued interest receivable	40,276	37,187
TOTAL ASSETS	4,246,765	4,230,289
Deposits:
Noninterest-bearing	800,946	634,863
Interest-bearing	1,935,700	1,852,614
Total deposits	2,736,646	2,487,477
Securities sold under agreements to repurchase and other short-term borrowings	319,893	395,433
Federal Home Loan Bank advances	517,500	699,500
Subordinated note	41,240	41,240
Other liabilities and accrued interest payable	39,929	30,092
Total liabilities	$ 3,655,208	$ 3,653,742
Commitments and contingent liabilities (Footnote 10)
STOCKHOLDERS' EQUITY
Preferred stock, no par value
Class A Common Stock and Class B Common Stock, no par value	$ 4,915	$ 4,915
Additional paid in capital	137,205	136,910
Retained earnings	446,309	432,673
Accumulated other comprehensive income	3,128	2,049
Total stockholders' equity	591,557	576,547
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 4,246,765	$ 4,230,289