Note 13 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

	September 30, 2020
	Fair Value Measurements Using						Total Fair Value
	Level 1		Level 2		Level 3		Measurements
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	99,980	$	—	$	—	$	99,980
U.S. government agency entities		—		104,596		—		104,596
Mortgage-backed securities		—		729,244		—		729,244
Collateralized mortgage obligations		—		211		—		211
Corporate debt securities		—		146,509		—		146,509
Total securities available-for-sale	$	99,980	$	980,560	$	—	$	1,080,540
Equity securities
Mutual funds	$	6,430	$	—	$	—	$	6,430
Preferred stock of government sponsored entities		5,522		—		—		5,522
Other equity securities		11,012		—		—		11,012
Total equity securities	$	22,964	$	—	$	—	$	22,964
Warrants	$	—	$	—	$	20	$	20
Interest rate swaps		—		3,992		—		3,992
Foreign exchange contracts		—		3,236		—		3,236
Total assets	$	122,944	$	987,788	$	20	$	1,110,752
Liabilities
Option contracts	$	—	$	6	$	—	$	6
Interest rate swaps		—		31,525		—		31,525
Foreign exchange contracts		—		1,592		—		1,592
Total liabilities	$	—	$	33,123	$	—	$	33,123

	December 31, 2019
	Fair Value Measurements Using						Total Fair Value
	Level 1		Level 2		Level 3		Measurements
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	74,936	$	—	$	—	$	74,936
U.S. government agency entities		—		90,796		—		90,796
U.S. government sponsored entities		—		224,443		—		224,443
Mortgage-backed securities		—		887,790		—		887,790
Collateralized mortgage obligations		—		552		—		552
Corporate debt securities		—		173,325		—		173,325
Total securities available-for-sale	$	74,936	$	1,376,906	$	—	$	1,451,842
Equity securities
Mutual funds	$	6,277	$	—	$	—	$	6,277
Preferred stock of government sponsored entities		10,529		—		—		10,529
Other equity securities		11,199		—		—		11,199
Total equity securities	$	28,005	$	—	$	—	$	28,005
Warrants	$	—	$	—	$	39	$	39
Interest rate swaps		—		2,181		—		2,181
Foreign exchange contracts		—		2,411		—		2,411
Total assets	$	102,941	$	1,381,498	$	39	$	1,484,478
Liabilities
Option contracts	$	—	$	7	$	—	$	7
Interest rate swaps		—		14,229		—		14,229
Foreign exchange contracts		—		1,415		—		1,415
Total liabilities	$	—	$	15,651	$	—	$	15,651

Fair Value Measurements, Nonrecurring [Table Text Block]

	As of September 30, 2020								Total Losses
	Fair Value Measurements Using						Total Fair Value		For the Three Months Ended				For the Nine Months Ended
	Level 1		Level 2		Level 3		Measurements		September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	13,167	$	13,167	$	6,950	$	—	$	6,950	$	—
Commercial mortgage loans		—		—		30,437		30,437		—		—		—		—
Residential mortgage loans and equity lines		—		—		5,705		5,705		—		—		—		—
Total impaired loans		—		—		49,309		49,309		6,950		—		6,950		—
Loans held-for-sale		—		—		—		—		—		120		—		120
Other real estate owned (1)		—		905		4,238		5,143		—		—		717		494
Investments in venture capital and private company stock		—		—		1,381		1,381		3		83		107		101
Total assets	$	—	$	905	$	54,928	$	55,833	$	6,953	$	203	$	7,774	$	715

	As of December 31, 2019								Total Losses/(Gains)
	Fair Value Measurements Using						Total Fair Value		For the Twelve Months Ended
	Level 1		Level 2		Level 3		Measurements		December 31, 2019		December 31, 2018
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	6,196	$	6,196	$	—	$	—
Commercial mortgage loans		—		—		25,566		25,566		—		—
Residential mortgage loans and equity lines		—		—		5,320		5,320		—		—
Total impaired loans		—		—		37,082		37,082		—		—
Other real estate owned (1)		—		6,490		4,343		10,833		681		(619	)
Investments in venture capital and private company stock		—		—		1,604		1,604		167		330
Total assets	$	—	$	6,490	$	43,029	$	49,519	$	848	$	(289	)