Net Periodic Benefit Cost (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the three months ended June 30:

	U.S. Pension Benefits						Non-U.S. Pension Benefits						Other U.S. Post-retirement Benefits						Total
	2019			2018			2019			2018			2019			2018			2019			2018
Service cost, net	$	266		$	272		$	3,799		$	3,744		$	—		$	—		4,065			4,016
Interest cost on projected benefit obligations	1,146			1,061			2,520			2,131			16			16			3,682			3,208
Expected return on plan assets	(1,472		)	(1,732		)	(7,218		)	(7,688		)	—			—			(8,705		)	(9,420		)
Recognition of prior service cost	—			—			(1,637		)	(1,727		)	—			(93		)	(1,622		)	(1,820		)
Recognition of actuarial losses/(gains)	593			1,451			5,062			5,369			(173		)	(313		)	5,482			6,507
Net periodic pension cost/(credit)	$	533		$	1,052		$	2,526		$	1,829		$	(157	)	$	(390	)	$	2,902		$	2,491

Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the six months ended June 30:

	U.S. Pension Benefits						Non-U.S. Pension Benefits						Other U.S. Post-retirement Benefits						Total
	2019			2018			2019			2018			2019			2018			2019			2018
Service cost, net	$	532		$	544		$	7,500		$	7,664		$	—		$	—		8,032			8,208
Interest cost on projected benefit obligations	2,292			2,122			5,063			4,354			32			32			7,387			6,508
Expected return on plan assets	(2,944		)	(3,464		)	(14,519		)	(15,675		)	—			—			(17,463		)	(19,139		)
Recognition of prior service cost	—			—			(3,339		)	(3,521		)	—			(186		)	(3,339		)	(3,707		)
Recognition of actuarial losses/(gains)	1,187			2,902			10,247			10,929			(346		)	(626		)	11,088			13,205
Net periodic pension cost/(credit)	$	1,067		$	2,104		$	4,952		$	3,751		$	(314	)	$	(780	)	$	5,705		$	5,075