Note 12 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2015

Disclosure Text Block [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

September 30, 2015	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	284,991	$	-	$	-	$	284,991
Mortgage-backed securities		-		1,004,398		-		1,004,398
Collateralized mortgage obligations		-		38		-		38
Corporate debt securities		-		73,830		-		73,830
Mutual funds		5,899		-		-		5,899
Preferred stock of government sponsored entities		-		4,517		-		4,517
Other equity securities		-		7,206		-		7,206
Total securities available-for-sale		290,890		1,089,989		-		1,380,879
Warrants		-		-		37		37
Foreign exchange contracts		-		3,363		-		3,363
Total assets	$	290,890	$	1,093,352	$	37	$	1,384,279
Liabilities
Interest rate swaps	$	-	$	11,000	$	-	$	11,000
Foreign exchange contracts		-		4,895		-		4,895
Total liabilities	$	-	$	15,895	$	-	$	15,895

December 31, 2014	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	664,004	$	-	$	-	$	664,004
Mortgage-backed securities		-		544,303		-		544,303
Collateralized mortgage obligations		-		45		-		45
Corporate debt securities		-		94,472		-		94,472
Mutual funds		5,866		-		-		5,866
Preferred stock of government sponsored entities		-		3,224		-		3,224
Other equity securities		-		7,021		-		7,021
Total securities available-for-sale		669,870		649,065		-		1,318,935
Warrants		-		-		27		27
Foreign exchange contracts		-		1,876		-		1,876
Total assets	$	669,870	$	650,941	$	27	$	1,320,838
Liabilities
Interest rate swaps	$	-	$	4,626	$	-	$	4,626
Foreign exchange contracts		-		5,007		-		5,007
Total liabilities	$	-	$	9,633	$	-	$	9,633

Fair Value Measurements, Nonrecurring [Table Text Block]

	September 30, 2015								Total Losses / (Gains)
	Fair Value Measurements Using						Total at		Three Months Ended					Nine Months Ended
	Level 1		Level 2		Level 3		Fair Value		September 30, 2015		September 30, 2014			September 30, 2015		September 30, 2014
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	7,866	$	7,866	$	575	$	-		$	3,380	$	17
Commercial mortgage loans		-		-		19,950		19,950		-		515			654		515
Residential mortgage loans and equity lines		-		-		13,357		13,357		-		32			146		32
Total impaired loans		-		-		41,173		41,173		575		547			4,180		564
Other real estate owned (1)		-		8,247		4,236		12,483		179		(48	)		404		277
Investments in venture capital		-		-		5,284		5,284		81		49			408		317
Total assets	$	-	$	8,247	$	50,693	$	58,940	$	835	$	548		$	4,992	$	1,158

	December 31, 2014								Total Losses / (Gains)
	Fair Value Measurements Using						Total at		Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2014		December 31, 2013
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	3,774	$	3,774	$	17	$	5,731
Commercial mortgage loans		-		-		25,029		25,029		3,914		125
Construction- other		-		-		7,625		7,625		-		-
Residential mortgage loans and equity lines		-		-		13,126		13,126		27		213
Total impaired loans		-		-		49,554		49,554		3,958		6,069
Other real estate owned (1)		-		16,458		4,110		20,568		202		(3,134	)
Investments in venture capital		-		-		5,495		5,495		436		409
Equity investments		617		-		-		617		-		-
Total assets	$	617	$	16,458	$	59,159	$	76,234	$	4,596	$	3,344