Note 9 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	At September 30, 2014
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
	(In thousands)
U.S. Treasury securities	$	3,509	$	3,509	$	-	$	-
Securities of U.S. Government sponsored entities		441,536		441,536		-		-
Residential mortgage-backed securities		28,353		-		28,353		-
Commercial mortgage-backed securities		3,021		-		3,021		-
Obligations of states and political subdivisions		186,620		-		186,620		-
Residential collateralized mortgage obligations		229,285		-		229,285		-
Asset-backed securities		8,639		-		8,639		-
FHLMC and FNMA stock		14,602		14,602		-		-
Corporate securities		473,138		-		473,138		-
Other securities		2,659		795		1,864		-
Total securities available for sale	$	1,391,362	$	460,442	$	930,920	$	-

	At December 31, 2013
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
	(In thousands)
U.S. Treasury securities	$	3,506	$	3,506	$	-	$	-
Securities of U.S. Government sponsored entities		130,492		130,492		-		-
Residential mortgage-backed securities		34,176		-		34,176		-
Commercial mortgage-backed securities		3,425		-		3,425		-
Obligations of states and political subdivisions		191,386		-		191,386		-
Residential collateralized mortgage obligations		252,896		-		252,896		-
Asset-backed securities		14,555		-		14,555		-
FHLMC and FNMA stock		13,372		13,372		-		-
Corporate securities		432,431		-		432,431		-
Other securities		3,142		1,300		1,842		-
Total securities available for sale	$	1,079,381	$	148,670	$	930,711	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

	At September 30, 2014								For the Nine Months Ended September 30, 2014
	Fair Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	7,273	$	-	$	7,273	$	-	$	(43	)
Impaired loans		7,475		-		6,700		775		(260	)
Total assets measured at fair value on a nonrecurring basis	$	14,748	$	-	$	13,973	$	775	$	(303	)

	At December 31, 2013								For the Year Ended December 31, 2013
	Fair Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	13,320	$	-	$	13,320	$	-	$	(814	)
Impaired loans		9,672		-		7,967		1,705		(233	)
Total assets measured at fair value on a nonrecurring basis	$	22,992	$	-	$	21,287	$	1,705	$	(1,047	)

Fair Value, by Balance Sheet Grouping [Table Text Block]

	At September 30, 2014
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	524,338	$	524,338	$	524,338	$	-	$	-
Investment securities held to maturity		1,035,041		1,041,385		1,164		1,040,221		-
Loans		1,700,613		1,701,539		-		-		1,701,539
Financial Liabilities:
Deposits	$	4,321,638	$	4,319,692	$	-	$	3,900,497	$	419,195
Short-term borrowed funds		76,943		76,943		-		76,943		-
Federal Home Loan Bank advances		20,156		20,161		20,161		-		-

	At December 31, 2013
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	472,028	$	472,028	$	472,028	$	-	$	-
Investment securities held to maturity		1,132,299		1,112,676		1,597		1,111,079		-
Loans		1,796,051		1,800,625		-		-		1,800,625
Other assets - FDIC indemnification receivable		4,032		4,032		-		-		4,032
Financial Liabilities:
Deposits	$	4,163,781	$	4,162,935	$	-	$	3,671,014	$	491,921
Short-term borrowed funds		62,668		62,668		-		62,668		-
Federal Home Loan Bank advances		20,577		20,558		20,558		-		-
Term repurchase agreement		10,000		10,054		-		10,054		-