Note 13 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

	September 30, 2019
	Fair Value Measurements Using						Total Fair Value
	Level 1		Level 2		Level 3		Measurements
	(In thousands)
Assets
Securities available-for-sale
U.S. government agency entities	$	—	$	92,954	$	—	$	92,954
U.S. government sponsored entities		—		347,699		—		347,699
Mortgage-backed securities		—		886,735		—		886,735
Collateralized mortgage obligations		—		665		—		665
Corporate debt securities		—		99,385		—		99,385
Total securities available-for-sale	$	—	$	1,427,438	$	—	$	1,427,438
Equity securities
Mutual funds	$	6,307	$	—	$	—	$	6,307
Preferred stock of government sponsored entities		15,145		—		—		15,145
Other equity securities		11,410		—		—		11,410
Total equity securities	$	32,862	$	—	$	—	$	32,862
Warrants	$	—	$	—	$	31	$	31
Interest rate swaps		—		1,697		—		1,697
Foreign exchange contracts		—		965		—		965
Total assets	$	32,862	$	1,430,100	$	31	$	1,462,993
Liabilities
Option contracts	$	—	$	6	$	—	$	6
Interest rate swaps		—		17,734		—		17,734
Foreign exchange contracts		—		2,435		—		2,435
Total liabilities	$	—	$	20,175	$	—	$	20,175

	December 31, 2018
	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	$	124,751	$	—	$	—	$	124,751
U.S. government agency entities		—		5,871		—		5,871
U.S. government sponsored entities		—		388,363		—		388,363
Mortgage-backed securities		—		656,744		—		656,744
Collateralized mortgage obligations		—		977		—		977
Corporate debt securities		—		65,803		—		65,803
Total securities available-for-sale	$	124,751	$	1,117,758	$	—	$	1,242,509
Equity securities
Mutual funds	$	6,094	$	—	$	—	$	6,094
Preferred stock of government sponsored entities		7,822		—		—		7,822
Other equity securities		11,182		—		—		11,182
Total equity securities	$	25,098	$	—	$	—	$	25,098
Warrants	$	—	$	—	$	184	$	184
Interest rate swaps		—		7,810		—		7,810
Foreign exchange contracts		—		397		—		397
Total assets	$	149,849	$	1,125,965	$	184	$	1,275,998
Liabilities
Option contracts	$	—	$	6	$	—	$	6
Interest rate swaps		—		1,543		—		1,543
Foreign exchange contracts		—		1,763		—		1,763
Total liabilities	$	—	$	3,312	$	—	$	3,312

Fair Value Measurements, Nonrecurring [Table Text Block]

	As of September 30, 2019								Total Losses
	Fair Value Measurements Using						Total Fair		For the Three Months Ended				For the Nine Months Ended
	Level 1		Level 2		Level 3		Value Measurements		September 30, 2019		September 30, 2018		September 30, 2019		September 30, 2018
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	12,491	$	12,491	$	—	$	—	$	—	$	—
Commercial mortgage loans		—		—		25,752		25,752		—		—		—		—
Residential mortgage loans and equity lines		—		—		5,696		5,696		—		—		—		—
Total impaired loans		—		—		43,939		43,939		—		—		—		—
Loans held-for-sale		—		—		36,778		36,778		120		—		120		—
Other real estate owned (1)		—		7,625		4,343		11,968		—		—		494		—
Investments in venture capital and private company stock		—		—		1,671		1,671		83		62		101		326
Total assets	$	—	$	7,625	$	86,731	$	94,356	$	203	$	62	$	715	$	326

	As of December 31, 2018								Total Losses/(Gains)
	Fair Value Measurements Using						Total Fair Value		For the Twelve Months Ended
	Level 1		Level 2		Level 3		Measurements		December 31, 2018			December 31, 2017
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	4,733	$	4,733	$	—		$	25
Commercial mortgage loans		—		—		26,186		26,186		—			—
Residential mortgage loans and equity lines		—		—		6,850		6,850		—			—
Total impaired loans		—		—		37,769		37,769		—			25
Other real estate owned (1)		—		9,023		4,343		13,366		(619	)		457
Investments in venture capital and private company stock		—		—		2,162		2,162		330			392
Total assets	$	—	$	9,023	$	44,274	$	53,297	$	(289	)	$	874