Pension and Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Components of net periodic cost

The components of the net periodic cost of the Company's terminated defined benefit pension plan, remaining defined benefit pension plan and other postretirement plans for the quarters and six months ended June 30, 2019 and July 1, 2018 are as follows:

	Quarter Ended
	Pension					Postretirement
	June 30, 2019			July 1, 2018		June 30, 2019	July 1, 2018
Service cost	$	808		667		178	189
Interest cost	4,913			3,980		316	293
Expected return on assets	(5,128		)	(5,174	)	—	—
Settlement	110,777			—		—	—
Net amortization and deferrals	5,610			2,965		5	43
Net periodic benefit cost	$	116,980		2,438		499	525

	Six Months Ended
	Pension				Postretirement
	June 30, 2019		July 1, 2018		June 30, 2019	July 1, 2018
Service cost	1,845		1,352		356	377
Interest cost	7,118		7,996		632	585
Expected return on assets	(7,166	)	(10,379	)	—	—
Settlement	110,777		—		—	—
Net amortization and deferrals	7,308		5,942		10	85
Net periodic benefit cost	119,882		4,911		998	1,047