CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
OPERATING ACTIVITIES:
Net income	$ 11,582	$ 9,184
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,852	1,907
Deferred income and expense, net of amortization	1,516	542
Amortization of core deposit intangibles	505	552
Gain on sale of securities	(1,006)	0
Other-than-temporary impairment recovery	(409)	0
Net change in valuation of financial instruments carried at fair value	1,347	(1,685)
Purchases of securities-trading	(4,190)	0
Proceeds from sales of securities-trading	6,070	0
Principal repayments and maturities of securities—trading	1,948	4,046
Decrease in deferred taxes	6,212	0
Decrease in current taxes payable	(6,537)	0
Equity-based compensation	207	45
Increase in cash surrender value of bank-owned life insurance	(528)	(489)
Gain on sale of loans, net of capitalized servicing rights	(2,130)	(1,736)
Gain on disposal of real estate held for sale and property and equipment	(816)	(113)
Provision for losses on loans and real estate held for sale	73	6,629
Origination of loans held for sale	(127,214)	(122,732)
Proceeds from sales of loans held for sale	135,880	122,853
Net change in:
Other assets	3,707	1,360
Other liabilities	(2,885)	(1,866)
Net cash provided from operating activities	25,184	18,497
INVESTING ACTIVITIES:
Purchases of available-for-sale securities	(52,673)	(46,409)
Principal repayments and maturities of available-for-sale securities	33,055	124,547
Proceeds from sales of securities available-for-sale	13,900	0
Purchases of securities held-to-maturity	(2,083)	(1,896)
Principal repayments and maturities of securities held-to-maturity	54	451
Principal repayments of loans, net of originations	(12,985)	65,012
Purchases of loans and participating interest in loans	(91)	(4,635)
Purchases of property and equipment	(1,133)	(587)
Proceeds from sale of real estate held for sale, net	6,464	15,410
Other	326	(3)
Net cash (used by) provided from investing activities	(15,166)	151,890
FINANCING ACTIVITIES:
Decrease in deposits, net	(37,220)	(49,483)
Repayment of FHLB advances	(10,002)	(2)
Increase (decrease) in other borrowings, net	11,813	(60,878)
Cash dividends paid	(195)	(1,725)
Cash proceeds from issuance of stock for stockholder reinvestment plan	2	8,874
Net cash used by financing activities	(35,602)	(103,214)
NET (DECREASE) INCREASE IN CASH AND DUE FROM BANKS	(25,584)	67,173
CASH AND DUE FROM BANKS, BEGINNING OF PERIOD	181,298	132,436
CASH AND DUE FROM BANKS, END OF PERIOD	155,714	199,609
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid in cash	3,710	6,715
Taxes paid in cash	5,431	0
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	$ 1,341	$ 1,611