CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
OPERATING ACTIVITIES:
Net income	$ 46,555	$ 64,882	$ 5,457
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	7,457	7,788	8,593
Deferred income and expense, net of amortization	3,200	2,864	1,645
Amortization of core deposit intangibles	1,941	2,092	2,276
(Gain) loss on sale of securities, net	(1,022)	(51)	5
Other-than-temporary impairment losses (recovery)	(409)	409	(3,000)
Net change in valuation of financial instruments carried at fair value	2,278	16,515	624
Purchases of securities—trading	(32,413)	(5,408)	0
Proceeds from sales of securities—trading	34,308	5,073	0
Principal repayments and maturities of securities—trading	6,509	15,880	15,409
Deferred taxes	7,528	(35,007)	0
Increase (decrease) in current taxes payable	(10,818)	1,089	0
Equity-based compensation	1,049	440	136
Increase in cash surrender value of BOLI	(1,999)	(2,554)	(1,910)
Gain on sale of loans, net of capitalized servicing rights	(6,498)	(10,154)	(3,226)
(Gain) loss on disposal of real estate held for sale and property and equipment	(2,521)	(4,614)	1,465
Provision for losses on loans and real estate held for sale	785	18,178	50,064
Origination of loans held for sale	(429,718)	(503,492)	(278,733)
Proceeds from sales of loans held for sale	445,402	504,734	282,444
Net change in:
Other assets	19,421	(818)	17,960
Other liabilities	4,331	3,569	2,104
Net cash provided from operating activities	95,366	81,415	101,313
INVESTING ACTIVITIES:
Purchases of available-for-sale securities	(197,911)	(413,482)	(622,192)
Principal repayments and maturities of available-for-sale securities	84,424	389,414	328,037
Proceeds from sales of securities available-for-sale	103,274	13,282	28,179
Purchases of securities held-to-maturity	(26,221)	(23,007)	(12,480)
Principal repayments and maturities of securities held-to-maturity	9,788	11,806	12,074
Origination of loans, net of principal repayments	(149,125)	55,830	31,926
Purchases of loans and participating interest in loans	(48,725)	(18,477)	(27,893)
Purchases of property and equipment, net of sales	(8,601)	(5,613)	(3,587)
Proceeds from sale of real estate held for sale, net	16,944	40,834	94,957
Proceeds from FHLB stock repurchase program	1,315	666	0
Other	(288)	1,226	(234)
Net cash provided from (used by) investing activities	(215,126)	52,479	(171,213)
FINANCING ACTIVITIES
Increase (decrease) in deposits, net	60,122	82,150	(115,544)
Advances, net of repayments of FHLB borrowings	16,993	(6)	(32,806)
Increase (decrease) in other borrowings, net	6,423	(75,495)	(23,695)
Cash dividends paid	(7,799)	(6,470)	(8,827)
Cash proceeds from issuance of stock for stockholder reinvestment plan	72	36,317	21,556
Redemption of preferred stock	0	(121,528)	0
Net cash provided from (used by) financing activities	75,811	(85,032)	(159,316)
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	(43,949)	48,862	(229,216)
CASH AND DUE FROM BANKS, BEGINNING OF YEAR	181,298	132,436	361,652
CASH AND DUE FROM BANKS, END OF YEAR	137,349	181,298	132,436
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid in cash	13,362	20,712	35,114
Taxes paid (received) in cash	22,828	9,631	(13,048)
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	$ 3,448	$ 14,070	$ 53,518