Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities
Net Income	$ 12,176	$ 8,902
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses and losses on covered loans	(20)	20,185
Stock-based compensation expense	551	450
Depreciation, amortization and accretion	13,015	16,141
Net realized gain on sale of securities	370	62
Net realized gain on sale of other assets	(80)	(21)
Net realized (gain) loss on sale of other real estate owned	(2,787)	(2,954)
Write-down on other real estate owned	158	3,127
Net change in:
Loans held for sale	1,675	82
Interest receivable	(2,053)	(750)
Interest payable	(40)	(148)
Other assets	3,192	(1,166)
Other liabilities	(11,739)	(8,403)
Net cash provided by operating activities	13,678	35,383
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected	71,815	16,814
Purchases of securities available for sale	(84,673)	(30,177)
Purchases of premises and equipment	(3,624)	(6,682)
Proceeds from FDIC reimbursement on loss-sharing asset	3,119	14,804
Proceeds from sales of securities available for sale	3,023	3,845
Proceeds from principal repayments and maturities of securities available for sale	64,758	49,654
Proceeds from Sale of Other Assets	287	0
Proceeds from sales of covered other real estate owned	6,438	8,025
Proceeds from sales of other real estate and other personal property owned	2,019	7,829
Capital improvements on other real estate properties	0	(90)
Net cash provided by (used in) investing activities	(80,468)	30,394
Cash Flows From Financing Activities
Net increase (decrease) in deposits	4,454	49,916
Proceeds from Federal Home Loan Bank advances	100	0
Proceeds from Federal Reserve Bank borrowings	50	0
Proceeds from exercise of stock options	326	308
Repayment of Federal Home Loan Bank advances	(100)	(4,210)
Repayment of Federal Reserve Bank borrowings	(50)	0
Payment of common stock dividends	(3,971)	(14,623)
Net cash used by financing activities	809	31,391
Increase (Decrease) in cash and cash equivalents	(65,981)	97,168
Cash and cash equivalents at beginning of period	513,926	294,289
Cash and cash equivalents at end of period	447,945	391,457
Supplemental Information:
Cash paid for interest	1,319	2,797
Cash paid for income tax	5,500	0
Non-cash investing activities
Loans transferred to other real estate owned	$ 4,114	$ 6,092