Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net income (loss)	$ 111,623	$ 137,758	$ 14,622
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization and accretion of investment securities premium, net	1,290	1,674	1,496
Net (gain) loss on sale of investment securities	(292)	(63)	(746)
Net impairment losses on investment securities	27	0	64
Origination of loans held for sale	(228,748)	(264,244)	(146,894)
Proceeds from sale of loans held for sale	248,807	266,598	146,182
Net gain on sale of loans	(5,086)	(6,083)	(2,797)
Provision for loan losses	275	(29,496)	(4,585)
Provision for unfunded loan commitments	2,708	17	(2,107)
Valuation adjustments for OREO	4,937	1,493	7,840
Net gain on sale of OREO	(3,260)	(3,828)	(2,540)
Net loss on transfer of premises to OREO	0	111	0
Depreciation and amortization	1,871	2,887	2,404
Net loss (gain) on disposal of premises and equipment	3	(1,676)	(1,328)
Deferred gain on disposal of premises and equipment	0	0	(6,392)
Net gain on sale of branches	0	(986)	(991)
Mortgage servicing rights impairment (recovery)	(1,664)	(596)	534
Impairment of real estate held for development and sale	212	0	0
Stock-based compensation expense	0	2,185	996
Deferred income taxes	0	(90,051)	0
Extinguishment of debt	(134,514)	0	0
Net decrease (increase) in accrued interest receivable	1,347	(210)	583
Net decrease (increase) in other assets	5,726	(2,515)	4,000
Net increase (decrease) in accrued interest payable	6,339	14	(94)
Net increase (decrease) in accrued taxes, insurance and employee related expenses	913	(682)	(43)
Net increase (decrease) in other liabilities	(5,837)	2,434	6,936
Net cash provided by operating activities	6,677	14,741	17,140
Investing Activities
Proceeds from sale of investment securities-AFS	356	14,647	17,557
Purchase of investment securities-AFS	(63,293)	(133,845)	(84,406)
Purchase of investment securities-HTM	0	(15,492)	0
Principal collected on investment securities-AFS	40,626	69,246	53,528
Net decrease (increase) in loans held for investment	106,592	(68,736)	11,724
Net cash delivered due to branch sales	0	(16,966)	(13,173)
Proceeds from sale of premises and equipment	27	1,831	10,550
Purchases of premises and equipment	(2,232)	(7,642)	(4,084)
Proceeds from sale of OREO	38,864	22,003	33,301
Capitalized improvements of OREO	(307)	(159)	(251)
FHLB stock redemption	13,690	0	0
Net cash provided by (used in) investing activities	134,323	(135,113)	24,746
Financing Activities
Net increase (decrease) in deposits	(129,750)	49,890	(46,257)
Increase (decrease) in advance payments by borrowers for taxes and insurance	(19,982)	(217)	1,746
Proceeds from borrowed funds	718,989	114,066	106,327
Repayment of borrowed funds	(956,037)	(115,256)	(105,452)
Tax benefit for restricted stock	0	205	0
Retirement of vested shares	0	(322)	0
Issuance of common stock	175,000	0	7,951
Stock issuance cost	0	0	(2,324)
Recapitalization transaction fees	(14,360)	0	0
Net cash provided by (used in) financing activities	(226,140)	48,366	(38,009)
Increase in cash and cash equivalents	(85,140)	(72,006)	3,877
Cash and cash equivalents at beginning of period	228,536	147,273	143,396
Cash and cash equivalents at end of period	143,396	75,267	147,273
Cash paid or credited to accounts:
Interest on deposits and borrowings	7,778	4,420	4,443
Income tax payments	17	385	15
Non-cash transactions:
Transfer of loans to OREO	19,352	3,256	10,381
Transfer of premises to OREO	0	1,133	0
Tax effect of change in AFS unrealized gain/loss	$ 0	$ 569	$ 0