Note 9 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

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

	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)
Investment securities available for sale:
At March 31, 2014	$	1,240,288	$	349,669	$	890,619	$	-
At December 31, 2013	$	1,079,381	$	148,670	$	930,711	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

	At March 31, 2014
	Fair Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	12,186	$	-	$	12,186	$	-	$	(37	)
Impaired loans		8,145		-		6,450		1,695		(260	)
Total assets measured at fair value on a nonrecurring basis	$	20,331	$	-	$	18,636	$	1,695	$	(297	)

	At 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 March 31, 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	$	428,840	$	428,840	$	428,840	$	-	$	-
Investment securities held to maturity		1,110,329		1,103,827		1,424		1,102,403		-
Loans		1,784,210		1,788,511		-		-		1,788,511
Other assets - FDIC indemnification receivable		5,610		5,610		-		-		5,610
Financial Liabilities:
Deposits	$	4,214,783	$	4,213,384	$	-	$	3,757,214	$	456,170
Short-term borrowed funds		64,382		64,382		-		64,382		-
Federal Home Loan Bank advances		20,437		20,426		20,426		-		-
Term repurchase agreement		10,000		10,033		-		10,033		-

	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		-