CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
OPERATING ACTIVITIES:
Net income	$ 23,793	$ 17,774
Adjustments to reconcile net income to net cash provided from operating activities:
Depreciation	2,888	2,859
Deferred income and expense, net of amortization	(265)	1,158
Amortization of core deposit intangibles	1,624	1,808
Gain on sale of securities	(13)	(21)
Net change in valuation of financial instruments carried at fair value	688	(29)
Purchases of securities—trading	0	(1,725)
Proceeds from sales of securities—trading	0	0
Principal repayments and maturities of securities—trading	9	1,946
Decrease in deferred taxes	(3,625)	(8,745)
Increase in current taxes payable	295	2,540
Equity-based compensation	680	876
Increase in cash surrender value of BOLI	(1,085)	(1,169)
Gain on sale of loans, net of capitalized servicing rights	(5,496)	(3,873)
(Gain) loss on disposal of real estate held for sale and property and equipment	(1,039)	427
Provision for loan losses	2,000	0
Provision for losses on real estate held for sale	50	205
Origination of loans held for sale	(167,550)	(202,471)
Proceeds from sales of loans held for sale	339,878	205,023
Net change in:
Other assets	(9,412)	(15,571)
Other liabilities	(5,283)	3,542
Net cash provided from operating activities	185,387	22,044
INVESTING ACTIVITIES:
Purchases of securities—available-for-sale	(457,966)	(123,197)
Principal repayments and maturities of securities—available-for-sale	32,446	41,376
Proceeds from sales of securities—available-for-sale	2,165	30,566
Purchases of securities—held-to-maturity	0	(26,991)
Principal repayments and maturities of securities—held-to-maturity	954	843
Loan originations, net of principal repayments	119,569	57,558
Purchases of loans and participating interest in loans	(99,206)	(70,551)
Proceeds from sales of other loans	4,627	144,499
Purchases of property and equipment	(3,598)	(4,331)
Proceeds from Sale of Property, Plant, and Equipment	13,684	4,666
Proceeds from FHLB stock repurchase program	29,192	19,624
Purchase of FHLB stock	(27,020)	(16,914)
Other	75	1,276
Net cash (used by) provided from investing activities	(385,078)	58,424
FINANCING ACTIVITIES:
Increase (decrease) in deposits, net	300,546	(25,206)
Repayment of long term FHLB advances	2	20,002
Repayments of overnight and short term FHLB advances, net	(54,000)	(37,600)
Increase in other borrowings, net	14,560	7,807
Cash dividends paid	(7,615)	(6,166)
Cash paid for the repurchase of common stock	(809)	(648)
Net cash provided from (used by) financing activities	252,680	(81,815)
NET CHANGE IN CASH AND CASH EQUIVALENTS	52,989	(1,347)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	247,719	261,917
CASH AND CASH EQUIVALENTS, END OF PERIOD	300,708	260,570
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid in cash	4,202	4,349
Taxes paid, net of refunds received in cash	8,543	2,581
NON-CASH INVESTING AND FINANCING TRANSACTIONS:
Loans, net of discounts, specific loss allowances and unearned income, transferred to real estate owned and other repossessed assets	0	135
Dividends Payable	$ 8,338	$ 7,159