CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 22,253	$ 16,592
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization of bank premises and equipment	8,092	8,736
Amortization and accretion of investment securities	19,083	16,968
Originations of loans held for sale	(261,159)	(163,826)
Proceeds from sales of loans held for sale	257,776	162,818
(Benefit) provision for loan losses	(7,500)	(5,000)
Provision for current income taxes	4,314	655
Provision for deferred income taxes	9,420	8,392
Decrease in deferred tax asset valuation allowance	(6,125)	0
(Increase) decrease in accrued interest receivable	(1,827)	2,398
Increase (decrease) in accrued interest payable	4	(62,552)
Gain on loans sold and held for sale	(7,160)	(3,812)
Net gain on investment securities	(8,069)	(1,278)
Net gain on sale of other real estate	(5,327)	(1,282)
Net gain on sale of retail branch offices	(3,331)	0
Decrease in fair value of servicing rights	2,942	1,634
Write-downs on other real estate	998	1,814
Restructuring charges on retail branch offices and other facilities	18,540	0
Other operating activities, net	(1,122)	4,215
Net cash provided by (used in) operating activities	41,802	(13,528)
Cash flows from investing activities:
Net cash paid for sale of retail branch offices, net of cash and cash equivalents sold	(173,246)	0
Net cash paid for sale of assets and liabilities of discontinued operations, net of cash and cash equivalents sold	0	(15,467)
Proceeds from sales of investment securities available for sale	236,939	166,320
Maturities of investment securities available for sale	177,866	137,444
Maturities of investment securities held to maturity	63,394	59,344
Purchases of investment securities available for sale	(294,788)	(147,180)
Purchases of investment securities held to maturity	(59,385)	(2,641)
Net purchases of Federal Reserve Bank and Federal Home Loan Bank stock	(249)	(3,266)
Proceeds from sales of commercial loans	23,459	5,532
Purchase of one-to-four-family residential real estate loans	(40,621)	(52,658)
Net increase in loans	(309,342)	(82,133)
Net purchases of bank premises and equipment	(3,607)	(6,946)
Net proceeds from sales of other real estate	53,993	14,457
Other investing activities, net	186	1,179
Net cash (used in) provided by investing activities	(325,401)	73,985
Cash flows from financing activities:
Increase in deposits	273,001	13,035
Decrease in securities sold under agreements to repurchase	(32,746)	(461)
Net cash provided by financing activities	240,255	12,574
Net (decrease) increase in cash and cash equivalents	(43,344)	73,031
Cash and cash equivalents, beginning of period	205,402	190,435
Cash and cash equivalents, end of period	162,058	263,466
Supplemental disclosures of cash flow information:
Cash paid for interest on liabilities	15,813	78,562
Cash paid for income taxes	6	448
Noncash investing and financing activities:
Loans transferred to other real estate	2,687	5,239
Bank premises transferred to other real estate	$ 3,281	$ 0