Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2022

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s defined benefit plans were as follows (in thousands):

	Pension Benefits
	Pension Plans						SERP
	Three Months Ended June 30,						Three Months Ended June 30,
	2022			2021			2022		2021
Components of net periodic benefit cost:
Service cost	$	1,658		$	2,053		$	—	$	—
Interest cost		3,640			3,535			8		7
Expected return on plan assets		(7,154	)		(6,559	)		—		—
Amortization of actuarial loss		132			790			8		10
Net periodic benefit cost	$	(1,724	)	$	(181	)	$	16	$	17

	Pension Benefits
	Pension Plans						SERP
	Six Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022		2021
Components of net periodic benefit cost:
Service cost	$	3,269		$	3,980		$	—	$	—
Interest cost		7,362			7,119			15		15
Expected return on plan assets		(14,296	)		(13,133	)		—		—
Amortization of actuarial loss		242			1,888			15		20
Net periodic benefit cost	$	(3,423	)	$	(146	)	$	30	$	35

Other Postretirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s postretirement benefit plan were as follows (in thousands):

	Other Postretirement Benefits
	Postretirement Welfare Plan
	Three Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022			2021
Components of net periodic benefit cost:
Interest cost		4			4			8			8
Amortization of actuarial gain		(99	)		(112	)		(197	)		(225	)
Net periodic benefit cost	$	(95	)	$	(108	)	$	(189	)	$	(217	)