Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Disclosures [Abstract]

Summary of assets measured at fair value on a recurring basis

	Fair Value Measurements – Recurring Basis
	Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(In thousands)
September 30, 2012
Investment securities – available-for-sale:
Government sponsored agencies	$	—	$	101,492	$	—	$	101,492
State and political subdivisions	—		52,238		—		52,238
Residential mortgage-backed securities	—		105,236		—		105,236
Collateralized mortgage obligations	—		299,078		—		299,078
Corporate bonds	—		82,106		—		82,106
Preferred stock	—		1,673		—		1,673
Total investment securities – available-for-sale	—		641,823		—		641,823
Loans held-for-sale	—		15,075		—		15,075
Total assets measured at fair value on a recurring basis	$	—	$	656,898	$	—	$	656,898
December 31, 2011
Investment securities – available-for-sale:
Government sponsored agencies	$	—	$	70,679	$	—	$	70,679
State and political subdivisions	—		45,235		—		45,235
Residential mortgage-backed securities	—		120,780		—		120,780
Collateralized mortgage obligations	—		332,400		—		332,400
Corporate bonds	—		96,768		—		96,768
Preferred stock	—		1,414		—		1,414
Total investment securities – available-for-sale	$	—	$	667,276	$	—	$	667,276
September 30, 2011
Investment securities – available-for-sale:
Government sponsored agencies	$	—	$	74,561	$	—	$	74,561
State and political subdivisions	—		45,464		—		45,464
Residential mortgage-backed securities	—		128,864		—		128,864
Collateralized mortgage obligations	—		295,932		—		295,932
Corporate bonds	—		64,184		—		64,184
Preferred stock	—		1,488		—		1,488
Total investment securities – available-for-sale	$	—	$	610,493	$	—	$	610,493

Summary of assets measured at fair value on a nonrecurring basis

	Fair Value Measurements – Nonrecurring Basis
	Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(In thousands)
September 30, 2012
Impaired originated loans	$	—	$	—	$	53,905	$	53,905
Other real estate/repossessed assets	—		—		19,467		19,467
Total	$	—	$	—	$	73,372	$	73,372
December 31, 2011
Impaired originated loans	$	—	$	—	$	52,721	$	52,721
Other real estate/repossessed assets	—		—		25,484		25,484
Total	$	—	$	—	$	78,205	$	78,205
September 30, 2011
Impaired originated loans	$	—	$	—	$	59,896	$	59,896
Other real estate/repossessed assets	—		—		28,679		28,679
Total	$	—	$	—	$	88,575	$	88,575

Summary of carrying amounts and estimated fair values of the financial instruments

	Level in Fair Value Measurement Hierarchy	September 30, 2012				December 31, 2011				September 30, 2011
		Carrying Amount		Fair Value		Carrying Amount		Fair Value		Carrying Amount		Fair Value
		(In thousands)
Assets:
Cash and cash equivalents	Level 1	$	438,720	$	438,720	$	381,940	$	381,940	$	611,284	$	611,284
Investment securities:
Available-for-sale	Level 2	641,823		641,823		667,276		667,276		610,493		610,493
Available-for-sale	NA	4,755		4,755		—		—		—		—
Held-to-maturity	Level 2	213,536		215,185		175,339		175,769		178,432		177,024
Held-to-maturity	Level 3	8,000		8,000		8,000		8,000		8,000		8,000
Nonmarketable equity securities	NA	25,572		25,572		25,572		25,572		25,572		25,572
Loans held-for-sale	Level 2	15,075		15,075		18,818		18,972		15,212		15,212
Net loans	Level 3	3,934,465		3,951,313		3,742,952		3,753,799		3,671,713		3,684,251
Interest receivable	Level 2	16,868		16,868		16,308		16,308		15,810		15,810
Liabilities:
Deposits without defined maturities	Level 2	$	3,185,654	$	3,185,654	$	2,851,883	$	2,851,883	$	2,942,811	$	2,942,811
Time deposits	Level 3	1,413,218		1,432,493		1,514,974		1,538,566		1,537,775		1,562,604
Interest payable	Level 2	1,603		1,603		2,147		2,147		2,427		2,427
Short-term borrowings	Level 2	311,471		311,471		303,786		303,786		302,298		302,298
FHLB advances	Level 2	37,237		37,971		43,057		44,307		45,991		47,365