Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income tax expense is comprised of the following amounts:



	Year Ended December 31,
	2019			2018			2017
	(In Thousands)
Current provision:
Federal	$	21,706		$	23,949		$	27,825
State	6,565			7,693			5,013
Total current provision	28,271			31,642			32,838
Deferred provision (benefit):
Federal	701			(4,323		)	10,209
State	(703		)	(1,130		)	589
Total deferred provision (benefit)	(2		)	(5,453		)	10,798
Total provision for income taxes	$	28,269		$	26,189		$	43,636

Schedule of reconciliation of income tax expense

Total provision for income taxes differed from the amounts computed by applying the statutory U.S. federal income tax rate of 21.0% in 2019, 21.0% in 2018 and 35.0% in 2017 to income before tax expense as a result of the following:



	Year Ended December 31,
	2019			2018			2017
	(Dollars In Thousands)
Expected income tax expense at statutory federal tax rate	$	24,366		$	23,675		$	34,039
State taxes, net of federal income tax benefit	4,837			5,184			3,641
Bank-owned life insurance	(216		)	(218		)	(364		)
Tax-exempt interest income	(435		)	(487		)	(873		)
Income attributable to noncontrolling interest in subsidiary	(11		)	(933		)	(870		)
Merger and acquisition expense	—			32			138
Tax Act Adjustment	—			(707		)	8,965
Investments in affordable housing projects	(369		)	(358		)	(653		)
Other, net	97			1			(387		)
Total provision for income taxes	$	28,269		$	26,189		$	43,636
Effective income tax rate	24.4		%	23.2		%	44.9		%

Schedule of the tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at the dates indicated are as follows:



	At December 31,
	2019		2018
	(In Thousands)
Deferred tax assets:
Allowance for loan and lease losses	$	16,294	$	15,936
Right-of-use asset - operating leases	6,450		—
Deferred compensation	4,748		4,692
Identified intangible assets and goodwill	4,319		—
Supplemental Executive Retirement Plans	3,023		2,846
Unrealized loss on investment securities available-for-sale	—		2,737
Net operating loss carryforwards	187		976
Postretirement benefits	458		391
Nonaccrual interest	557		482
Accrued expense	—		372
Restricted stock and stock option plans	751		497
Employee stock ownership plan	83		106
Other	733		331
Total gross deferred tax assets	37,603		29,366
Deferred tax liabilities:
Operating leases - liability	6,450		—
Identified intangible assets and goodwill	—		2,428
Deferred loan origination costs, net	3,785		3,537
Depreciation	420		789
Unrealized gain on investment securities available-for-sale	622		—
Prepaid expense	110		116
Accrued Expense	122		—
Acquisition fair value adjustments	1,077		1,001
Total gross deferred tax liabilities	12,586		7,871
Net deferred tax asset	$	25,017	$	21,495