Fair Value Accounting and Measurement (Tables)

9 Months Ended

Sep. 30, 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 September 30, 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
September 30, 2013	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	861,669	$	—	$	861,669	$	—
State and municipal debt securities	354,895		—		354,895		—
U.S. government agency and government-sponsored enterprise securities	327,530		—		327,530		—
U.S. government securities	20,417		20,417		—		—
Other securities	5,140		—		5,140		—
Total securities available for sale	$	1,569,651	$	20,417	$	1,549,234	$	—
Other assets (Interest rate contracts)	$	10,187	$	—	$	10,187	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	10,187	$	—	$	10,187	$	—

	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 September 30, 2013 and 2012.

	Fair value at September 30, 2013		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended September 30, 2013			Losses During the Nine Months Ended September 30, 2013
			Level 1		Level 2		Level 3
	(in thousands)
Noncovered OREO	$	3,714	$	—	$	—	$	3,714	$	(1,040	)	$	(1,084	)
Covered OREO	544		—		—		544		(183		)	(248		)
	$	4,258	$	—	$	—	$	4,258	$	(1,223	)	$	(1,332	)

	Fair value at September 30, 2012		Fair Value Measurements at Reporting Date Using						Gains (Losses) During the Three Months Ended September 30, 2012			Losses During the Nine Months Ended September 30, 2012
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	6,094	$	—	$	—	$	6,094	$	509		$	(3,377	)
Noncovered OREO	1,807		—		—		1,807		(458		)	(3,117		)
Covered OREO	1,021		—		—		1,021		(481		)	(1,025		)
Noncovered OPPO	—		—		—		—		—			(1,990		)
	$	8,922	$	—	$	—	$	8,922	$	(430	)	$	(9,509	)

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 September 30, 2013 and December 31, 2012:

	September 30, 2013
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	200,282	$	200,282	$	200,282	$	—	$	—
Interest-earning deposits with banks	54,470		54,470		54,470		—		—
Securities available for sale	1,569,651		1,569,651		20,417		1,549,234		—
FHLB stock	32,833		32,833		—		32,833		—
Loans held for sale	840		840		—		840		—
Loans	4,440,048		4,397,456		—		—		4,397,456
FDIC loss-sharing asset	53,559		17,353		—		—		17,353
Interest rate contracts	10,187		10,187		—		10,187		—
Liabilities
Deposits	$	5,948,967	$	5,948,473	$	5,413,557	$	534,916	$	—
FHLB Advances	34,632		33,301		—		33,301		—
Repurchase agreements	25,000		26,207		—		26,207		—
Interest rate contracts	10,187		10,187		—		10,187		—

	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 September 30, 2013		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Noncovered OREO	$	3,714	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Covered OREO	544		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 covered OREO because there were no adjustments made to the appraisal value during the current period.

	Fair value at September 30, 2012		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans - real estate collateral	$	4,148	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Impaired loans - other collateral (3)	1,946		Fair Market Value of Collateral	Adjustment to Stated value	0% - 70% (27%)
Noncovered OREO	1,807		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Covered OREO	1,021		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
Noncovered OPPO	—		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 collateralized by real estate, noncovered OREO, covered OREO and noncovered OPPO because there were no adjustments made to the appraisal value during the current period.
(3) Other collateral consists of accounts receivable and inventory