Note 13 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

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

	June 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. Treasury securities	$	49,791	$	—	$	—	$	49,791
U.S. government agency entities		—		77,252		—		77,252
U.S. government sponsored entities		—		398,340		—		398,340
Mortgage-backed securities		—		846,105		—		846,105
Collateralized mortgage obligations		—		777		—		777
Corporate debt securities		—		99,319		—		99,319
Total securities available-for-sale	$	49,791	$	1,421,793	$	—	$	1,471,584
Equity securities
Mutual funds	$	6,259	$	—	$	—	$	6,259
Preferred stock of government sponsored entities		14,183		—		—		14,183
Other equity securities		12,056		—		—		12,056
Total equity securities	$	32,498	$	—	$	—	$	32,498
Warrants	$	—	$	—	$	44	$	44
Interest rate swaps		—		1,440		—		1,440
Foreign exchange contracts		—		638		—		638
Total assets	$	82,289	$	1,423,871	$	44	$	1,506,204
Liabilities
Option contracts	$	—	$	14	$	—	$	14
Interest rate swaps		—		13,779		—		13,779
Foreign exchange contracts		—		876		—		876
Total liabilities	$	—	$	14,669	$	—	$	14,669

	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 June 30, 2019								Total Losses/(Gains)
	Fair Value Measurements Using						Total Fair Value		For the Three Months Ended					For the Six Months Ended
	Level 1		Level 2		Level 3		Measurements		June 30, 2019		June 30, 2018			June 30, 2019		June 30, 2018
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	11,731	$	11,731	$	—	$	—		$	—	$	—
Commercial mortgage loans		—		—		25,085		25,085		—		—			—		—
Residential mortgage loans and equity lines		—		—		5,750		5,750		—		—			—		—
Total impaired loans		—		—		42,566		42,566		—		—			—		—
Other real estate owned (1)		—		7,625		4,343		11,968		422		(33	)		494		—
Investments in venture capital and private company stock		—		—		1,746		1,746		16		91			18		264
Total assets	$	—	$	7,625	$	48,655	$	56,280	$	438	$	58		$	512	$	264

	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