Note 11 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

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

June 30, 2016	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
Assets	(In thousands)
Securities available-for-sale
U.S. Treasury securities	$	240,039	$	-	$	-	$	240,039
U.S. government sponsored entities		-		125,142		-		125,142
Mortgage-backed securities		-		783,313		-		783,313
Collateralized mortgage obligations		-		32		-		32
Corporate debt securities		-		73,229		-		73,229
Mutual funds		5,953		-		-		5,953
Preferred stock of government sponsored entities		-		4,160		-		4,160
Other equity securities		-		10,036		-		10,036
Total securities available-for-sale		245,992		995,912		-		1,241,904
Warrants		-		-		90		90
Foreign exchange contracts		-		2,083		-		2,083
Total assets	$	245,992	$	997,995	$	90	$	1,244,077
Liabilities
Interest rate swaps	$	-	$	18,050	$	-	$	18,050
Foreign exchange contracts		-		1,602		-		1,602
Total liabilities	$	-	$	19,652	$	-	$	19,652

December 31, 2015	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
Assets	(In thousands)
Securities available-for-sale
U.S. Treasury securities	$	284,288	$	-	$	-	$	284,288
U.S. government sponsored entities		-		148,160		-		148,160
Mortgage-backed securities		-		1,062,269		-		1,062,269
Collateralized mortgage obligations		-		36		-		36
Corporate debt securities		-		73,855		-		73,855
Mutual funds		5,833		-		-		5,833
Preferred stock of government sponsored entities		-		3,216		-		3,216
Other equity securities		-		8,695		-		8,695
Total securities available-for-sale		290,121		1,296,231		-		1,586,352
Warrants		-		-		62		62
Foreign exchange contracts		-		3,339		-		3,339
Total assets	$	290,121	$	1,299,570	$	62	$	1,589,753
Liabilities
Option contracts	$	-	$	28	$	-	$	28
Interest rate swaps		-		6,496		-		6,496
Foreign exchange contracts		-		4,124		-		4,124
Total liabilities	$	-	$	10,648	$	-	$	10,648

Fair Value Measurements, Nonrecurring [Table Text Block]

	June 30, 2016								Total Losses
	Fair Value Measurements Using						Total at		Three Months Ended				Six Months Ended
	Level 1		Level 2		Level 3		Fair Value		June 30, 2016		June 30, 2015		June 30, 2016		June 30, 2015
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	4,032	$	4,032	$	-	$	2,574	$	-	$	2,805
Commercial mortgage loans		-		-		18,843		18,843		945		-		945		654
Residential mortgage loans and equity lines		-		-		13,436		13,436		-		-		-		146
Total impaired loans		-		-		36,311		36,311		945		2,574		945		3,605
Other real estate owned (1)		-		7,995		440		8,435		88		44		216		225
Investments in venture capital and private company stock		-		-		4,499		4,499		122		103		231		327
Total assets	$	-	$	7,995	$	41,250	$	49,245	$	1,155	$	2,721	$	1,392	$	4,157

	December 31, 2015								Total Losses
	Fair Value Measurements Using						Total at		Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2015		December 31, 2014
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	6,317	$	6,317	$	806	$	17
Commercial mortgage loans		-		-		20,359		20,359		598		3,914
Residential mortgage loans and equity lines		-		-		13,009		13,009		146		27
Total impaired loans		-		-		39,685		39,685		1,550		3,958
Other real estate owned (1)		-		10,047		4,235		14,282		404		202
Investments in venture capital and private company stock		-		-		4,922		4,922		553		436
Total assets	$	-	$	10,047	$	48,842	$	58,889	$	2,507	$	4,596