CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Interest received	$ 66,387	$ 55,164
Fees and commissions received	16,989	15,629
Interest paid	(3,545)	(3,587)
Cash paid to suppliers and employees	(57,211)	(46,616)
Origination of loans designated held for sale	(83,207)	(109,958)
Sale of loans designated held for sale	87,130	102,380
Net change in other assets	(834)	(462)
Net cash provided by operating activities	25,709	12,550
Cash flows from investing activities
Maturity of securities available for sale	59,151	63,681
Maturity of securities held for investment	15,584	17,400
Proceeds from sale of securities available for sale	12,211	0
Purchases of securities available for sale	(149,969)	(84,693)
Purchases of securities held for investment	(213,766)	(24,366)
Net new loans and principal repayments	(133,007)	(114,794)
Proceeds from the sale of other real estate owned	4,207	3,004
Proceeds from sale of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock	1,700	3,725
Purchase of FHLB and Federal Reserve Stock	(9,297)	(3,388)
Net cash from bank acquisition	260,471	0
Additions to bank premises and equipment	(133)	(6,651)
Net cash (used in) provided by investing activities	(152,848)	(146,082)
Cash flows from financing activities
Net increase in deposits	5,421	188,643
Net increase in federal funds purchased and repurchase agreements	11,382	4,036
Net increase (decrease) in FHLB borrowings	101,000	(65,000)
Stock based employee benefit plans	72	62
Dividends paid	0	0
Net cash provided by financing activities	117,875	127,741
Net decrease in cash and cash equivalents	(9,264)	(5,791)
Cash and cash equivalents at beginning of period	136,067	100,539
Cash and cash equivalents at end of period	126,802	94,748
Reconciliation of net income to cash provided by operating activities
Net income	9,298	11,664
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	2,235	1,708
Amortization of premiums and discounts on securities, net	2,385	1,972
Other amortization and accretion, net	(1,110)	(994)
Change in loans held for sale, net	3,923	(7,578)
Provision for loan losses	861	1,288
Gain on sale of securities	(136)	0
Gain on sale of loans	(872)	(708)
Losses (gains) on sale and write-downs of other real estate owned	(252)	134
Losses (gains) on disposition of fixed assets	1,937	1
Change in interest receivable	(2,460)	136
Change in interest payable	350	(370)
Change in prepaid expenses	(584)	(721)
Change in accrued taxes	5,582	7,487
Change in other assets	(834)	(462)
Change in other liabilities	5,386	(1,007)
Net cash provided by operating activities	25,709	12,550
Supplemental disclosure of non cash investing activities:
Fair value adjustment to securities	16,602	2,004
Transfer from loans to other real estate owned	2,805	1,629
Purchase of securities on trade date	349	528
Matured securities recorded as a receivable	1,198	0
Transfer from bank premises to other real estate owned	$ 3,176