CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 18,027	$ 7,926
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,568	1,341
Amortization of premiums and discounts on securities, net	742	1,056
Other amortization and accretion, net	(406)	268
Stock based compensation	1,454	1,315
Origination of loans designated for sale	(78,156)	(47,149)
Sale of loans designated for sale	83,459	46,603
Provision for loan losses	1,085	1,304
Deferred income taxes	4,707	3,860
Gains on sale of loans	(1,884)	(815)
Losses (gains) on sale and write-downs of other real estate owned	1	(346)
Losses on disposition of fixed assets	(4)	429
Changes in operating assets and liabilities, net of effects from acquired companies
Net decrease in other assets	23,567	324
Net (decrease) increase in other liabilities	(273)	647
Net cash provided by operating activities	53,887	16,763
CASH FLOWS FROM INVESTING ACTIVITIES
Maturities and repayments of debt securities available for sale	27,296	54,783
Maturities and repayments of debt securities held to maturity	16,085	25,171
Purchases of debt securities available for sale	(72,311)	(11,116)
Purchases of debt securities held to maturity	0	(31,963)
Net new loans and principal repayments	(84,063)	(94,262)
Proceeds from the sale of other real estate owned	3,300	2,417
Proceeds from sale of FHLB and Federal Reserve Bank Stock	10,540	9,053
Purchase of FHLB and Federal Reserve Stock	(13,027)	(4,935)
Purchase of VISA Class B stock	0	(6,180)
Redemption of bank owned life insurance	4,232	0
Additions to bank premises and equipment	(1,288)	(1,697)
Net cash used in investing activities	(109,236)	(58,729)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	126,823	155,423
Net decrease in federal funds purchased and repurchase agreements	(42,845)	(21,095)
Net decrease in FHLB borrowings	(3,000)	(113,000)
Issuance of common stock, net of related expense	0	55,660
Stock based employee benefit plans	726	171
Dividends paid	0	0
Net cash provided by financing activities	81,704	77,159
Net increase in cash and cash equivalents	26,355	35,193
Cash and cash equivalents at beginning of period	109,504	109,644
Cash and cash equivalents at end of period	135,859	144,837
Supplemental disclosure of non cash investing activities:
Transfers from loans to other real estate owned	3,919	0
Transfers from bank premises to other real estate owned	$ 2,030	$ 0