Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows From Operating Activities:
Net Income	$ 35,004	$ 25,091
Provision for credit losses	7,094	12,051
Depreciation and amortization	3,161	2,392
Gains on sale of loans	(13,355)	(9,867)
Securities premium amortization (discount accretion), net	2,306	3,662
Origination of loans held for sale	(853,068)	(981,733)
Proceeds from sale of loans held for sale	1,054,140	997,185
Net increase in cash surrender value of BOLI	(420)	(294)
Increase in deferred income taxes	(6,854)	(1,740)
Net loss (gain) on sale of other real estate owned	781	(26)
Net gain on sale of investment securities	(23)	(765)
Loss on early extinguishment of debt		529
Stock-based compensation expense	2,429	2,059
Excess tax benefit from stock-based compensation	(322)	(87)
(Increase) decrease in other assets	(3,733)	234
Decrease in other liabilities	(4,402)	(7,655)
Net cash provided by operating activities	222,738	41,036
Cash Flows From Investing Activities:
(Decrease) increase in interest bearing deposits with other banks and short-term investments	(53)	22
Purchases of available for sale investment securities	(114,259)	(79,314)
Proceeds from maturities of available for sale securities	26,990	30,212
Proceeds from sale/call of available for sale securities	22,148	62,888
Purchases of Federal Reserve and Federal Home Loan Bank stock	(705)	(2,763)
Proceeds from redemption of federal reserve and federal home loan bank stock	153	974
Net increase in loans	(318,191)	(348,405)
Purchases of BOLI	(15,000)
Purchases of Annuities	(11,184)
Proceeds from sale of other real estate owned	3,068	901
Bank premises and equipment acquired	(3,944)	(4,321)
Net cash used in investing activities	(410,977)	(339,806)
Cash Flows From Financing Activities:
Increase in deposits	86,837	122,671
Decrease in customer repurchase agreements	(19,072)	(27,994)
Increase in other short-term borrowings		10,000
Decrease in long-term borrowings		(10,000)
Payment of dividends on preferred stock	(425)	(425)
Issuance of common stock		28,500
Proceeds from exercise of stock options	1,247	778
Excess tax benefit from stock-based compensation	322	87
Payment in lieu of fractional shares	(10)
Proceeds from employee stock purchase plan	385	447
Net cash provided by financing activities	69,284	124,064
Net Decrease In Cash and Cash Equivalents	(118,955)	(174,706)
Supplemental Cash Flows Information:
Interest paid	10,078	11,752
Income taxes paid	23,945	11,951
Non-Cash Investing Activities
Transfers from loans to other real estate owned	$ 9,835	$ 3,555