Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 85,950	$ 57,235
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for loan losses	0	47,000
Depreciation and amortization	20,832	15,918
Addition to valuation allowance on mortgage servicing rights, net	2,036	5,763
Amortization of mortgage servicing rights	11,775	11,637
Amortization of other intangible assets	2,098	2,356
Amortization and accretion on earning assets, funding, and other, net	30,013	30,421
Tax benefit from exercise of stock options	5	11
(Gain) loss on sales of investment securities, net and impairment write-downs	(603)	58
(Gain) loss on sales of assets and impairment write-downs, net	8,578	6,541
Gain on mortgage banking activities, net	(29,459)	(10,581)
Mortgage loans originated and acquired for sale	(1,301,779)	(540,893)
Proceeds from sales of mortgage loans held for sale	1,409,805	605,375
(Increase) decrease in interest receivable	4,744	3,752
Increase (decrease) in interest payable	(4,601)	1,585
Net change in other assets and other liabilities	(3,637)	36,838
Net cash provided by (used in) operating activities	235,757	273,016
CASH FLOWS FROM INVESTING ACTIVITIES
Net (increase) decrease in loans	(857,350)	(640,916)
Purchases of:
Investment securities	(592,477)	(433,972)
Premises, equipment, and software, net of disposals	(33,063)	(23,023)
Other assets	(2,810)	(1,349)
Proceeds from:
Sales of investment securities	113,752	16,799
Calls and maturities of investment securities	882,830	829,838
Sales, prepayments, calls, and maturities of other assets	26,406	25,576
Sales of loans originated for investment	124,903	39,184
Net cash provided by (used in) investing activities	(337,809)	(187,863)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits	136,061	(1,159,343)
Net decrease in deposits due to branch sales	(113,622)	0
Net increase (decrease) in short-term funding	138,785	1,508,288
Repayment of long-term funding	(25,968)	(228,078)
Proceeds from issuance of long-term funding	0	297,240
Proceeds from issuance of common stock	0	0
Proceeds from issuance of preferred stock	0	0
Redemption of preferred stock	0	(262,500)
Cash dividends on common stock	(17,379)	(3,487)
Cash dividends on preferred stock	(2,600)	(10,062)
Purchase of common stock	(31,210)	(616)
Net cash provided by (used in) financing activities	84,067	141,442
Net increase (decrease) in cash and cash equivalents	(17,985)	226,595
Cash and cash equivalents at beginning of period	616,595	868,162
Cash and cash equivalents at end of period	598,610	1,094,757
Supplemental disclosures of cash flow information:
Cash paid for interest	54,812	65,521
Cash (received) paid for income taxes	(21,550)	5,052
Loans and bank premises transferred to other real estate owned	22,536	28,917
Transfers of loans to held for sale	0	0
Capitalized mortgage servicing rights	$ 13,147	$ 6,584