CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 9,521	$ 11,953	$ 8,554
Adjustments to net income:
Depreciation and amortization expense	825		670
Provision for loan losses	2,502	2,054	1,120
Share-based compensation expense	1,154		461
Loss on sale and disposal of premises and equipment	45		0
Net amortization on securities available-for-sale, net	1,039		1,057
Net accretion of discounts/premiums for loans acquired and deferred loan fees/costs	(249)		(2,584)
Gain on sale of investment securities available-for-sale	0	0	(753)
Other-than-temporary impairment recovery on investment securities, net	1		0
Originations of loans held for sale	(35,149)		(18,899)
Proceeds from the sales of and principal payments from loans held for sale	33,037		22,616
Gain on sale of loans	(2,811)		(1,906)
Deferred income tax expense (benefit)	3,350		(325)
Change in accrued expenses and other liabilities, net	(8,178)		(5,499)
Income from bank owned life insurance, net	(287)		(290)
Amortization of core deposit intangible	511		344
Change in accrued interest receivable and other assets, net	2,713		4,925
Net cash (used in) provided by operating activities	8,024		9,491
Cash flows from investing activities:
Increase in loans, net	(144,347)		(138,358)
Principal payments on securities available-for-sale	10,535		9,676
Purchase of securities available-for-sale	(65,771)		0
Proceeds from sale or maturity of securities available-for-sale	1,770		192,809
Proceeds from the sale of premises and equipment	0		3,294
Purchases of premises and equipment	(655)		(2,177)
Change in FHLB, FRB, and other stock, at cost	(507)		(3,561)
Cash acquired in acquisitions	0		40,156
Net cash (used in) provided by investing activities	(198,975)		101,839
Cash flows from financing activities:
Net increase in deposit accounts	151,588		74,549
Change in FHLB advances and other borrowings, net	(16,578)		(71,169)
Proceeds from exercise of stock options and warrants	501		387
Repurchase of common stock	(904)		0
Net cash provided by financing activities	134,607		3,767
Net increase (decrease) in cash and cash equivalents	(56,344)		115,097
Cash and cash equivalents, beginning of period	156,857		78,417
Cash and cash equivalents, end of period	100,513	$ 156,857	193,514
Supplemental cash flow disclosures:
Interest paid	4,565		4,182
Income taxes paid	36		136
Assets acquired (liabilities assumed and capital created) in acquisitions (See Note 4):
Investment securities	0		190,254
FHLB and Other Stock	0		3,671
Loans	0		456,158
Core deposit intangible	0		4,319
Deferred income tax	0		7,069
Goodwill	0		51,252
Fixed assets	0		4,356
Other assets	0		5,610
Deposits	0		(636,591)
Other liabilities	0		(8,843)
Common stock and additional paid-in capital	$ 0		$ (119,383)