Components of Net Periodic Benefit Costs (Tables)

9 Months Ended

Sep. 30, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following table summarizes the impact of retrospective application to the consolidated statements of income for the three and nine months ended September 30, 2018:

	For the Three Months Ended		For the Nine Months Ended
	September 30, 2018		September 30, 2018
	(In thousands)
Compensation and employee benefits:
As previously reported	$	16,654	$	49,929
As reported under new guidance	18,179		54,503
Other non-interest expense:
As previously reported	$	3,304	$	9,599
As reported under new guidance	1,779		5,024

Net periodic benefit (income) cost for Pension Plan, RIM Plan, Post-retirement Plan and split-dollar life insurance arrangement plan benefits for the three and nine months ended September 30, 2019 and 2018, includes the following components:

	For the Three Months Ended September 30,
	Pension Plan						RIM Plan				Post-retirement Plans
	2019			2018			2019		2018		2019		2018			Affected Line Item in the Consolidated Statements of Income
	(In thousands)
Service cost	$	1,746		$	1,780		$	53	$	61	$	172	$	93		Compensation and employee benefits
Interest cost	2,090			2,129			116		111		321		205			Other non-interest expense
Expected return on plan assets	(5,802		)	(4,815		)	—		—		—		—			Other non-interest expense
Amortization:
Prior service cost	—			—			—		—		14		(34		)	Other non-interest expense
Net loss	770			707			61		103		99		69			Other non-interest expense
Net periodic (income) benefit cost	$	(1,196	)	$	(199	)	$	230	$	275	$	606	$	333

	For the Nine Months Ended September 30,
	Pension Plan						RIM Plan				Post-retirement Plans
	2019			2018			2019		2018		2019		2018
	(In thousands)
Service cost	$	4,748		$	5,340		$	159	$	183	$	516	$	279		Compensation and employee benefits
Interest cost	6,478			6,387			348		333		963		615			Other non-interest expense
Expected return on plan assets	(15,256		)	(14,445		)	—		—		—		—			Other non-interest expense
Amortization:
Prior service cost	—			—			—		—		42		(102		)	Other non-interest expense
Net loss	2,300			2,121			183		309		297		207			Other non-interest expense
Net periodic (income) benefit cost	$	(1,730	)	$	(597	)	$	690	$	825	$	1,818	$	999