Consolidated Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net Income	$ 39,549	$ 41,049
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	6,012	3,013
Depreciation of premises and equipment, net	4,650	4,436
Amortization of fees and discounts, net	11,221	7,322
Amortization of intangible assets	1,258	879
Decrease (increase) in accrued interest receivable	12	(637)
(Increase) decrease in other assets	(253)	835
Origination of loans held-for-sale	(350,584)	(174,469)
Proceeds from sales of loans held-for-sale	348,760	180,794
Gain on mortgage banking activities, net	(4,544)	(3,066)
Gain on sale of securities, net	(1,004)	(979)
Stock-based compensation expense	3,319	3,637
Excess tax benefit from stock-based compensation	(785)	(551)
Increase in accrued interest payable	756	2,373
Increase (decrease) in other liabilities	1,524	(2,324)
(Gain) loss on sale of other real estate owned and valuation adjustments, net	(298)	91
Deferred income tax expense (benefit)	2,418	(5,198)
Increase in value of bank-owned life insurance	(527)	(467)
Increase in capitalized interest, net	(4,088)	(4,184)
Net cash provided by operating activities	57,396	52,554
Investing activities:
Calls of investment securities held-to-maturity	3,881
Purchases of investment securities held-to-maturity	(19,195)
Repayments of investment securities held-to-maturity	970
Maturities of investment securities available for sale		2,335
Sale of investment securities available-for-sale	117,380	200,734
Purchases of investment securities available-for-sale	(209,947)	(217,617)
Repayments of investment securities available-for-sale	80,293	54,328
Repayments on reverse mortgages	9,559	13,049
Disbursements for reverse mortgages	(649)	(929)
Net increase in loans	(181,290)	(67,824)
Acquisition of FNBW, net of cash acquired		(25,590)
Net (increase) decrease in stock of FHLB	(4,665)	6,087
Sales of assets acquired through foreclosure, net	5,278	3,807
Investment in premises and equipment, net	(4,968)	(2,370)
Net cash used for investing activities	(203,353)	(33,990)
Financing activities:
Net increase in demand and saving deposits	76,241	3,774
(Decrease) increase in time deposits	(116,863)	3,379
Increase in brokered deposits	36,624	74,440
Increase in loan payable	61	61
Repayment of reverse mortgage trust bonds payable		(21,990)
Receipts from FHLB advances	46,342,654	68,802,762
Repayments of FHLB advances	(46,105,521)	(68,928,745)
Receipts from federal funds purchased and securities sold under agreement to repurchase	22,843,325	19,040,751
Repayments of federal funds purchased and securities sold under agreement to repurchase	(22,855,550)	(19,037,751)
Maturity of repurchase agreement	(25,000)
Dividends paid	(4,216)	(3,213)
Issuance of common stock and exercise of common stock options	2,688	1,376
Reissuance of Treasury Stock for FNBW purchase, net		32,916
Purchase of treasury stock	(28,273)
Excess tax benefit from stock-based compensation	785	551
Net cash provided by (used for) financing activities	166,955	(31,689)
Increase (decrease) in cash and cash equivalents	20,998	(13,125)
Cash and cash equivalents at beginning of period	508,039	484,426
Cash and cash equivalents at end of period	529,037	471,301
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest during the period	11,103	9,126
Cash paid for income taxes, net	16,558	19,675
Loans transferred to other real estate owned	2,545	3,633
Loans transferred to portfolio from held-for-sale at fair value	104	2,169
Net change in accumulated other comprehensive income	3,741	17,503
Fair Value of assets acquired, net of cash received		245,910
Fair Value of liabilities assumed		236,787
Non-cash goodwill adjustments, net	$ 136	$ 46