Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans

The following tables provide the components of net periodic benefit cost for its major defined benefit plans and its other postretirement plans.

	Pension Benefits
	Three Months Ended June 30,
	2019						2018
	U.S.			Non-U.S.			U.S.			Non-U.S.
Service cost	$	209		$	460		$	255		$	527
Interest cost	764			361			653			351
Expected return on plan assets	(801		)	(262		)	(983		)	(282		)
Net amortization	486			280			685			322
Net periodic benefit cost	$	658		$	839		$	610		$	918

	Pension Benefits
	Six Months Ended June 30,
	2019						2018
	U.S.			Non-U.S.			U.S.			Non-U.S.
Service cost	$	417		$	924		$	509		$	1,072
Interest cost	1,528			726			1,306			712
Expected return on plan assets	(1,602		)	(526		)	(1,966		)	(572		)
Net amortization	973			564			1,370			652
Net periodic benefit cost	$	1,316		$	1,688		$	1,219		$	1,864

	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Service cost	$	140		$	167		$	280		$	335
Interest cost	212			203			424			406
Net amortization	(158		)	(184		)	(317		)	(368		)
Net periodic benefit cost	$	194		$	186		$	387		$	373