CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 34,991	$ 15,602
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	3,134	2,677
Amortization of premiums and discounts on securities, net	1,732	1,838
Other amortization and accretion, net	225	(429)
Stock based compensation	3,622	2,540
Origination of loans designated for sale	(159,991)	(117,379)
Sale of loans designated for sale	173,385	113,527
Provision for loan losses	3,614	2,705
Deferred income taxes	4,559	7,338
Gains on sale of securities	0	(21)
Gains on sale of loans	(5,277)	(3,078)
Losses (gains) on sale and write-downs of other real estate owned	298	(212)
Losses on disposition of fixed assets	231	2,316
Changes in operating assets and liabilities, net of effects from acquired companies:
Net decrease in other assets	19,230	1,347
Net increase (decrease) in other liabilities	3,184	(2,634)
Net cash provided by operating activities	82,937	26,137
CASH FLOWS FROM INVESTING ACTIVITIES
Maturities and repayments of debt securities available for sale	77,860	125,115
Maturities and repayments of debt securities held to maturity	34,360	42,883
Proceeds from sale of debt securities available for sale	0	3,820
Purchases of debt securities available for sale	(101,354)	(142,062)
Purchases of debt securities held to maturity	0	(49,963)
Maturities of time deposits with other banks	1,991	847
Net new loans and principal repayments	(161,038)	(198,080)
Proceeds from the sale of other real estate owned	5,184	3,324
Proceeds from sale of FHLB and Federal Reserve Bank Stock	20,570	14,832
Purchase of FHLB and Federal Reserve Stock	(23,055)	(15,012)
Purchase of VISA Class B stock	0	(6,180)
Redemption of bank owned life insurance	4,232	0
Net cash from bank acquisition	0	30,233
Additions to bank premises and equipment	(2,475)	(2,979)
Net cash used in investing activities	(143,725)	(193,222)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	104,720	166,863
Net decrease in federal funds purchased and repurchase agreements	(16,044)	(36,644)
Net decrease in FHLB borrowings	(6,000)	(20,000)
Issuance of common stock, net of related expense	0	55,641
Stock based employee benefit plans	129	(222)
Dividends paid	0	0
Net cash provided by financing activities	82,805	165,638
Net increase (decrease) in cash and cash equivalents	22,017	(1,447)
Cash and cash equivalents at beginning of period	109,504	109,644
Cash and cash equivalents at end of period	131,521	108,197
Supplemental disclosure of non cash investing activities:
Transfers from loans to other real estate owned	4,207	448
Transfers from bank premises to other real estate owned	$ 2,052	$ 1,212