Consolidated Statements Of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$ 56,405	$ 70,414
Investing Activities
Proceeds from maturities, prepayments, and calls of securities available-for-sale	82,779	125,533
Proceeds from sales of securities available-for-sale	12,838	19,745
Purchases of securities available-for-sale	(11,115)	(289,666)
Proceeds from maturities, prepayments, and calls of securities held-to-maturity	3,151	5,803
Purchases of securities held-to-maturity	(1,030)	(1,881)
Net (purchases) redemption of FHLB stock	(427)	12,071
Net increase in loans	(251,586)	(85,210)
BOLI income, net of claims	(72)	(76)
Proceeds from sales of OREO	9,160	10,907
Proceeds from sales of premises, furniture, and equipment	158	1,425
Purchases of premises, furniture, and equipment	(4,074)	(3,286)
Net cash used in investing activities	(160,218)	(204,635)
Financing Activities
Net increase in deposit accounts	129,149	194,492
Net (decrease) increase in borrowed funds	(5,591)	10,619
Payment for the termination of FHLB advances	(116,609)	0
Cash dividends paid	(10,530)	(1,499)
Restricted stock activity	(2,699)	(1,588)
Excess tax benefit related to share-based compensation	825	36
Net cash (used in) provided by financing activities	(5,455)	202,060
Net (decrease) increase in cash and cash equivalents	(109,268)	67,839
Cash and cash equivalents at end of period	477,973	784,105
Cash and cash equivalents at beginning of period	587,241	716,266
Supplemental Disclosures of Cash Flow Information:
Income taxes paid (refunded)	4,734	(3,498)
Interest paid to depositors and creditors	11,927	14,281
Dividends declared, but unpaid	6,027	3,005
Non-cash transfers of loans to OREO	9,339	11,502
Non-cash transfer of loans held-for-investment to loans held-for-sale	64,881	1,275
Non-cash transfer of an investment from other assets to securities available-for-sale	$ 0	$ 2,787