Fair Value Accounting and Measurement (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Financial Assets And Liabilities Accounted For Fair Value On Recurring Basis

The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis at March 31, 2013 and December 31, 2012 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
March 31, 2013	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	511,955	$	—	$	511,955	$	—
State and municipal debt securities	275,605		—		275,605		—
U.S. government agency and government-sponsored enterprise securities	201,527		—		201,527		—
U.S. government securities	19,706		19,706		—		—
Other securities	3,369		—		3,369		—
Total securities available for sale	$	1,012,162	$	19,706	$	992,456	$	—
Other assets (Interest rate contracts)	$	13,456	$	—	$	13,456	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	13,456	$	—	$	13,456	$	—

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
December 31, 2012	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	572,369	$	—	$	572,369	$	—
State and municipal debt securities	285,575		—		285,575		—
U.S. government agency and government-sponsored enterprise securities	120,501		—		120,501		—
U.S. government securities	19,828		19,828		—		—
Other securities	3,392		—		3,392		—
Total securities available for sale	$	1,001,665	$	19,828	$	981,837	$	—
Other assets (Interest rate contracts)	$	14,921	$	—	$	14,921	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	14,921	$	—	$	14,921	$	—

Financial Assets Accounted For Fair Value On Nonrecurring Basis

The following tables set forth the Company's assets that were measured using fair value estimates on a nonrecurring basis at March 31, 2013 and 2012.

	Fair value at March 31, 2013		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2013
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	477	$	—	$	—	$	477	$	102
Noncovered OREO	1,350		—		—		1,350		101
Covered OREO	65		—		—		65		65
	$	1,892	$	—	$	—	$	1,892	$	268

	Fair value  at March 31, 2012		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2012
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	12,416	$	—	$	—	$	12,416	$	2,881
Noncovered OREO	3,510		—		—		3,510		1,730
Covered OREO	1,917		—		—		1,917		767
Noncovered OPPO	2,334		—		—		2,334		1,950
	$	20,177	$	—	$	—	$	20,177	$	7,328

Fair Value, by Balance Sheet Grouping

The following tables summarize carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value at March 31, 2013 and December 31, 2012:

	March 31, 2013
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	91,889	$	91,889	$	91,889	$	—	$	—
Interest-earning deposits with banks	356,056		356,056		356,056		—		—
Securities available for sale	1,012,162		1,012,162		19,706		992,456		—
FHLB stock	21,621		21,621		—		21,621		—
Loans held for sale	888		888		—		888		—
Loans	2,933,306		2,978,867		—		—		2,978,867
FDIC loss-sharing asset	83,115		25,062		—		—		25,062
Interest rate contracts	13,456		13,456		—		13,456		—
Liabilities
Deposits	$	4,046,539	$	4,047,346	$	3,573,755	$	473,591	$	—
FHLB Advances	6,634		6,237		—		6,237		—
Repurchase agreements	25,000		26,396		—		26,396		—
Interest rate contracts	13,456		13,456		—		13,456		—

	December 31, 2012
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	124,573	$	124,573	$	124,573	$	—	$	—
Interest-earning deposits with banks	389,353		389,353		389,353		—		—
Securities available for sale	1,001,665		1,001,665		19,828		981,837		—
FHLB stock	21,819		21,819		—		21,819		—
Loans held for sale	2,563		2,563		—		2,563		—
Loans	2,864,803		2,944,317		—		—		2,944,317
FDIC loss-sharing asset	96,354		26,543		—		—		26,543
Interest rate contracts	14,921		14,921		—		14,921		—
Liabilities
Deposits	$	4,042,085	$	4,043,221	$	3,549,821	$	493,400	$	—
FHLB Advances	6,644		5,894		—		5,894		—
Repurchase agreements	25,000		26,464		—		26,464		—
Interest rate contracts	14,921		14,921		—		14,921		—

Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value Inputs, Assets, Quantitative Information

The range and weighted-average of the significant unobservable inputs used to fair value our Level 3 nonrecurring assets, along with the valuation techniques used, are shown in the following table:

	Fair value at March 31, 2013		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	477	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Noncovered OREO	1,350		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Covered OREO	65		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable and inventory).
(2) Quantitative disclosures are not provided for impaired loans, noncovered OREO, and covered OREO because there were no adjustments made to the appraisal value during the current period.

	Fair value  at March 31, 2012		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	12,416	Fair Market Value of Collateral	Adjustment to Appraisal Value	0% - 37% (12%)
Noncovered OREO	3,510		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Covered OREO	1,917		Fair Market Value of Collateral	Adjustment to Appraisal Value	0% - 23% (3%)
Noncovered OPPO	2,334		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable and inventory).
(2) Quantitative disclosures are not provided for noncovered OREO and noncovered OPPO because there were no adjustments made to the appraisal value during the current period.