CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
OPERATING ACTIVITIES:
Net income (loss)	$ 64,882	$ 5,457	$ (61,896)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	7,788	8,593	9,208
Deferred income and expense, net of amortization	2,864	1,645	103
Amortization of core deposit intangibles	2,092	2,276	2,459
Other-than-temporary impairment losses (recovery)	409	(3,000)	4,231
Net change in valuation of financial instruments carried at fair value	16,515	624	(1,747)
Purchases of securities—trading	(5,408)	0	(3,266)
Proceeds from sales of securities—trading	5,073	0	0
Principal repayments and maturities of securities—trading	15,880	15,409	55,427
Deferred taxes	(35,007)	0	14,988
Increase in current taxes payable	1,089	0	0
Equity-based compensation	440	136	83
Increase in cash surrender value of bank-owned life insurance	(2,554)	(1,910)	(2,057)
Gain on sale of loans, net of capitalized servicing rights	(10,154)	(3,226)	(4,634)
(Gain) Loss on disposal of real estate held for sale and property and equipment	(4,614)	1,465	1,917
Provision for losses on loans and real estate held for sale	18,178	50,064	85,096
Origination of loans held for sale	(503,492)	(278,733)	(349,975)
Proceeds from sales of loans held for sale	504,734	282,444	350,980
Net change in:
Other assets	(869)	17,965	15,622
Other liabilities	3,569	2,104	(2,020)
Net cash provided from operating activities	81,415	101,313	114,519
INVESTING ACTIVITIES:
Purchases of available-for-sale securities	(413,482)	(622,192)	(238,499)
Principal repayments and maturities of available-for-sale securities	389,414	328,037	131,900
Proceeds from sales of securities available-for-sale	13,282	28,179	1,965
Purchases of securities held-to-maturity	(23,007)	(12,480)	(8,727)
Principal repayments and maturities of securities held-to-maturity	11,806	12,074	8,416
Principal repayments of loans, net of originations	55,763	9,125	235,847
Purchases of loans and participating interest in loans	(18,410)	(5,092)	(341)
Purchases of property and equipment, net of sales	(5,613)	(3,587)	(2,167)
Proceeds from sale of real estate held for sale, net	40,834	94,957	47,809
Other	1,892	(234)	(149)
Net cash provided from (used by) investing activities	52,479	(171,213)	176,054
FINANCING ACTIVITIES
Increase (decrease) in deposits, net	82,150	(115,544)	(274,352)
Repayment of FHLB advances	(6)	(32,806)	(145,506)
Decrease in other borrowings, net	(75,495)	(23,695)	(1,039)
Cash dividends paid	(6,470)	(8,827)	(8,867)
Cash proceeds from issuance of stock for stockholder reinvestment plan	36,317	21,556	16,201
Cash proceeds from issuance of stock in secondary offering, net of costs	0	0	161,637
Redemption of preferred stock	(121,528)	0	0
Net cash used by financing activities	(85,032)	(159,316)	(251,926)
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	48,862	(229,216)	38,647
CASH AND DUE FROM BANKS, BEGINNING OF YEAR	132,436	361,652	323,005
CASH AND DUE FROM BANKS, END OF YEAR	181,298	132,436	361,652
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid in cash	20,712	35,114	64,112
Taxes paid (received) in cash	9,631	(13,048)	(592)
NON-CASH INVESTING AND FINANCING TRANSACTIONS:
Loans, net of discounts, specific loss allowances and unearned income transferred to real estate owned and other repossessed assets	$ 14,070	$ 53,518	$ 87,967