Pension and Postretirement Benefit Obligations (Tables)

9 Months Ended

Sep. 29, 2019

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Pension Cost

The components of net periodic pension cost were as follows:

	Third Quarter						First Nine Months
(in thousands)	2019			2018			2019			2018
Service cost	$	1,207		$	1,412		$	3,620		$	4,237
Interest cost		3,063			2,856			9,188			8,568
Expected return on plan assets		(2,574	)		(3,853	)		(7,722	)		(11,557	)
Recognized net actuarial loss		901			934			2,702			2,800
Amortization of prior service cost		5			6			17			18
Net periodic pension cost	$	2,602		$	1,355		$	7,805		$	4,066

Components of Net Periodic Postretirement Benefit Cost

The components of net periodic postretirement benefit cost were as follows:

	Third Quarter						First Nine Months
(in thousands)	2019			2018			2019			2018
Service cost	$	389		$	502		$	1,167		$	1,507
Interest cost		694			696			2,080			2,088
Recognized net actuarial loss		196			499			587			1,497
Amortization of prior service cost		(324	)		(462	)		(970	)		(1,386	)
Net periodic postretirement benefit cost	$	955		$	1,235		$	2,864		$	3,706