Note 9 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

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

	At June 30, 2018
	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)
Equity securities
Mutual funds	$	1,750	$	-	$	1,750	$	-
Total equity securities		1,750		-		1,750		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		117,372		-		117,372		-
Agency residential MBS		857,365		-		857,365		-
Non-agency residential MBS		128		-		128		-
Agency commercial MBS		2,178		-		2,178		-
Securities of U.S. Government entities		1,433		-		1,433		-
Obligations of states and political subdivisions		183,691		-		183,691		-
Corporate securities		1,201,027		-		1,201,027		-
Total debt securities available for sale		2,363,194		-		2,363,194		-
Total	$	2,364,944	$	-	$	2,364,944	$	-

	At December 31, 2017
	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)
Equity securities
Mutual funds	$	1,800	$	-	$	1,800	$	-
Total equity securities		1,800		-		1,800		-
Debt securities available for sale
Securities of U.S. Government sponsored entities		119,319		-		119,319		-
Agency residential MBS		767,706		-		767,706		-
Non-agency residential MBS		154		-		154		-
Agency commercial MBS		2,219		-		2,219		-
Securities of U.S. Government entities		1,590		-		1,590		-
Obligations of states and political subdivisions		185,221		-		185,221		-
Corporate securities		1,115,498		-		1,115,498		-
Total debt securities available for sale		2,191,707		-		2,191,707		-
Total	$	2,193,507	$	-	$	2,193,507	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

									For the
									Six Months Ended
	At June 30, 2018								June 30, 2018
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	939	$	-	$	-	$	939	$	-
Impaired loans:
Commercial		4,776		-		-		4,776		-
Commercial real estate		5,707		-		-		5,707		-
Total assets measured at fair value on a nonrecurring basis	$	11,422	$	-	$	-	$	11,422	$	-

									For the
									Year Ended
	At December 31, 2017								December 31, 2017
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	1,426	$	-	$	-	$	1,426	$	(219	)
Impaired loans:
Commercial		4,950		-		-		4,950		-
Commercial real estate		5,904		-		-		5,904		-
Total assets measured at fair value on a nonrecurring basis	$	12,280	$	-	$	-	$	12,280	$	(219	)

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

	At June 30, 2018
	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	$	629,146	$	629,146	$	629,146	$	-	$	-
Debt securities held to maturity		1,076,456		1,058,573		-		1,058,573		-
Loans		1,177,152		1,211,071		-		-		1,211,071
Financial Liabilities:
Deposits	$	4,887,122	$	4,883,659	$	-	$	4,671,201	$	212,458
Short-term borrowed funds		68,894		68,894		-		68,894		-

	At December 31, 2017
	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	$	575,002	$	575,002	$	575,002	$	-	$	-
Debt securities held to maturity		1,158,864		1,155,342		-		1,155,342		-
Loans		1,264,973		1,257,811		-		-		1,257,811
Financial Liabilities:
Deposits	$	4,827,613	$	4,824,586	$	-	$	4,595,795	$	228,791
Short-term borrowed funds		58,471		58,471		-		58,471		-