Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net Income	$ 93,641		$ 385,721	$ 39,133
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	0		10,000	30,000
Net gain on sales of loans	(51,253)		(98,223)	(61,097)
Net gain on sales of investments and MBS	0		(23,835)	(16,236)
Net (gain) loss on mortgage servicing rights	(6,948)		216	6,179
Other-than-temporary impairment losses on securities	0	[1]	6,819	0	[1]
Stock based compensation	3,564		3,130	3,363
Loss on OREO	2,418		247	16,628
Deferred income tax provision (benefit)	37,894		(291,880)	275
Charge on prepayment of debt	0		35,342	0
Increase in cash surrender value of BOLI	(5,931)		(8,401)	(6,213)
Depreciation and amortization	43,184		45,843	42,651
Bargain purchase gain	(7,544)		0	0
Change in:
Accrued interest receivable	1,106		8,337	1,261
Prepaid expenses and other assets	(16,676)		(24,098)	(1,342)
Accrued interest payable	11		(18,479)	5,316
Accrued expenses and other liabilities	(50,475)		29,548	(9,003)
Proceeds from sales of loans originated for sale	2,745,176		2,728,418	2,076,393
Loans originated for sale	(2,375,378)		(2,915,204)	(2,043,236)
Net cash provided by (used in) operating activities	412,789		(126,499)	84,072
Cash flows from investing activities:
Change in restricted cash	24,925		(11,043)	(4,948)
Net change in loans	(852,445)		(500,452)	(285,736)
Proceeds from sales of loans	143,151		139,356	91,456
Purchase of investment securities	0		(3,734)	(10,357)
Proceeds from maturities of investment securities	4,085		20,588	2,012
Proceeds from sale of investment securities	18,219		199,966	30,987
Purchase of MBS	(322,965)		(287,849)	(760,519)
Principal payments received on MBS	328,142		613,809	533,851
Proceeds from sales of MBS	48,886		679,208	555,353
Proceeds from BOLI death benefits	0		3,714	1,187
Changes in office properties and equipment, net	(19,365)		(9,853)	(15,881)
Improvements and other changes to OREO	(551)		(1,282)	(5,613)
Proceeds from sales of OREO	39,890		91,402	246,609
Net change in cash and cash equivalents from acquisitions	(150,120)		121,098	0
Net cash (used in) provided by investing activities	(738,148)		1,054,928	378,401
Cash flows from financing activities:
Net change in deposits	162,842		(745,620)	(425,189)
Advances from FHLB	1,875,000		545,000	0
Repayment of advances from FHLB	(1,360,158)		(345,210)	(1,519)
Net change in short term repurchase agreements	(5,188)		(18,896)	23,251
Payments under structured repurchase agreements	(50,000)		(485,342)	0
Proceeds from stock issuance, net	868		661	0
Dividends paid	(59,195)		(49,743)	0
Net cash provided by (used in) financing activities	564,169		(1,099,150)	(403,457)
Net change in cash and cash equivalents	238,810		(170,721)	59,016
Cash and cash equivalents, beginning of period	299,878		470,599	411,583
Cash and cash equivalents, end of period	538,688		299,878	470,599
Cash paid during the period for:
Interest	54,732		102,868	103,781
Income taxes, net	599		44	(250)
Noncash financing and investing activities:
Foreclosed real estate acquired in settlement of loans	19,959		33,499	177,881
Parent Company [Member]
Change in:
Net cash provided by (used in) operating activities	(9,035)		(26,807)	(2,918)
Cash flows from investing activities:
Net cash (used in) provided by investing activities	72,800		52,600	0
Cash flows from financing activities:
Proceeds from stock issuance, net			3,791	0
Dividends paid			(49,743)	0
Net cash provided by (used in) financing activities	(58,327)		(45,952)	0
Net change in cash and cash equivalents	5,438		(20,159)	(2,918)
Cash and cash equivalents, beginning of period	24,443		44,602	47,520
Cash and cash equivalents, end of period	$ 29,881		$ 24,443	$ 44,602

[1] The other-than-temporary impairment recognized in earnings during 2012 did not have a portion recognized in accumulated other comprehensive income.