Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net Income	$ 71,487	$ 364,775
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	0	10,000
Net gain on sales of loans	(42,719)	(71,482)
Net gain on sales of investments and MBS	0	(12,592)
Net (gain) loss on mortgage servicing rights	(6,105)	984
Other-than-temporary impairment credit losses on securities	0	6,819
Stock based compensation	3,128	2,756
Loss on OREO	1,141	32
Release of DTA valuation allowance	0	(288,842)
Increase in cash surrender value of BOLI	(4,419)	(6,924)
Depreciation and amortization	32,452	33,871
Bargain purchase gain	(7,544)	0
Change in:
Accrued interest receivable	(785)	4,325
Prepaid expenses and other assets	12,503	(23,295)
Accrued interest payable	(67)	(16,116)
Accrued expenses and other liabilities	(46,044)	19,606
Proceeds from sales of loans originated for sale	2,278,291	1,937,131
Loans originated for sale	(1,964,100)	(2,010,310)
Net cash provided by (used in) operating activities	327,219	(49,262)
Cash flows from investing activities:
Change in restricted cash	25,021	(11,042)
Net change in loans	(661,835)	(317,773)
Proceeds from sales of loans	41,272	75,689
Purchase of investment securities	0	(3,734)
Proceeds from maturities of investment securities	2,778	18,939
Proceeds from sale of investment securities	0	179,235
Purchase of MBS	(322,965)	(287,849)
Principal payments received on MBS	278,527	467,792
Proceeds from sales of MBS	0	326,915
Proceeds from BOLI death benefits	0	3,714
Office properties and equipment, net	(14,568)	(14,144)
Improvements and other changes to OREO	(321)	(1,214)
Proceeds from sales of OREO	28,462	67,200
Net change in cash and cash equivalents from acquisitions	(115,768)	121,098
Net cash (used in) provided by investing activities	(739,397)	624,826
Cash flows from financing activities:
Net change in deposits	131,857	(441,827)
Advances from FHLB	1,385,000	50,000
Repayment of advances from FHLB	(963,472)	(300,157)
Net change in short term repurchase agreements	(2,198)	(13,216)
Payments under structured repurchase agreements	(50,000)	(100,000)
Proceeds from stock issuance, net	868	572
Cash dividends paid	(46,727)	(9,322)
Net cash provided by (used in) financing activities	455,328	(813,950)
Net change in cash and cash equivalents	43,150	(238,386)
Cash and cash equivalents, beginning of period	299,878	470,599
Cash and cash equivalents, end of period	343,028	232,213
Supplemental disclosures:
Interest	41,389	82,358
Income taxes, net	634	81
Noncash financing and investing activities:
Foreclosed real estate acquired in settlement of loans	$ 17,329	$ 30,683