CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME	$ 29,202	$ 22,141	$ 5,696
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	5,076	3,773	3,268
Amortization of premiums and discounts on securities, net	7,559	3,920	2,353
Other amortization and accretion, net	(2,238)	(7,943)	(256)
Stock based compensation	4,154	2,859	1,299
Origination of loans designated for sale	(175,842)	(206,199)	(188,952)
Sale of loans designated for sale	184,508	194,279	190,706
Provision for loan losses	2,411	2,644	(3,486)
Deferred income taxes	14,206	12,888	4,222
Gain on sale of securities	(368)	(161)	(469)
Gain on sale of loans	(668)	(702)	(419)
Losses (gains) on sale and write-downs of other real estate owned	(509)	239	310
Losses and write-downs on disposition of fixed assets	2,442	183	4,493
Changes in operating assets and liabilities, net of effects from acquired companies:
Net change in other assets	(14,107)	(4,526)	(315)
Net increase (decrease) in other liabilities	6,181	(406)	3,496
Net cash provided by operating activities	66,007	22,989	21,946
CASH FLOWS FROM INVESTING ACTIVITIES
Maturities and repayments of securities available for sale	127,879	118,493	92,499
Maturities and repayments of securities held to maturity	48,705	28,629	16,138
Proceeds from sale of securities available for sale	40,421	60,314	21,527
Purchases of securities available for sale	(297,719)	(159,616)	(280,137)
Purchases of securities held to maturity	(218,654)	(24,366)	(65,340)
Net new loans and principal payments	(390,354)	(217,346)	(154,772)
Proceeds from the sale of other real estate owned	7,952	5,758	4,066
Proceeds from sale of Federal Home Loan Bank and Federal Reserve Bank Stock	9,350	7,427	2,423
Purchase of Federal Home Loan Bank and Federal Reserve Bank Stock	(28,857)	(7,510)	(6,425)
Purchase of bank owned life insurance	(40,000)	0	(30,000)
Net cash from bank acquisitions	235,546	32,927	110,996
Additions to bank premises and equipment	(6,054)	(9,091)	(6,083)
Net cash used in investing activities	(511,785)	(164,381)	(295,108)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in deposits	27,320	240,086	93,446
Net increase (decrease) in federal funds purchased and repurchase agreements	32,196	16,707	(16,148)
Net increase (decrease) in FHLB borrowings, maturing in 30 days or less	415,000	(80,000)	80,000
Early redemption of FHLB borrowings (see Note I)	(50,000)	0	0
Issuance of common stock, net of related expense	0	0	24,637
Stock based employee benefit plans	(1,161)	127	142
Net cash provided by financing activities	423,355	176,920	182,077
Net increase (decrease) in cash and cash equivalents	(26,423)	35,528	(91,085)
Cash and cash equivalents at beginning of year	136,067	100,539	191,624
Cash and cash equivalents at end of year	109,644	136,067	100,539
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	7,855	6,636	3,521
Cash paid during the period for income taxes	703	575	239
Supplemental disclosure of non cash investing activities:
Transfers from loans to other real estate owned	3,009	4,946	4,789
Transfers from bank premises to other real estate owned	$ 7,708	$ 309	$ 0