Pensions (Tables) - Pension Plan [Member]

12 Months Ended

Dec. 31, 2018

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Pension Plans

Information related to the Company’s defined benefit pension plans was as follows:

	Year Ended December 31,
	2018						2017
	U.S.			Non-U.S.			U.S.			Non-U.S.
Change in projected benefit obligation:
Projected benefit obligations at beginning of period	$	315,698		$	197,169		$	303,446		$	191,184
Service cost	852			4,383			814			4,025
Interest cost	10,824			4,207			11,700			4,341
Actuarial (gain) loss	(21,684		)	(3,001		)	17,230			4,450
Benefits paid	(17,467		)	(7,125		)	(17,492		)	(7,048		)
Foreign exchange translation	—			(10,697		)	—			20,809
Settlements	—			(4,974		)	—			(20,667		)
Acquisitions	—			2,778			—			—
Other	—			1,110			—			75
Projected benefit obligations at end of period	$	288,223		$	183,850		$	315,698		$	197,169
Change in plan assets:
Fair value of plan assets at beginning of period	$	275,767		$	52,026		$	253,483		$	63,220
Actual return on plan assets	(16,631		)	(746		)	35,233			5,039
Employer contributions	23,350			9,136			4,543			7,238
Benefits paid	(17,467		)	(7,125		)	(17,492		)	(7,048		)
Foreign exchange translation	—			(4,014		)	—			4,008
Settlements	—			(3,730		)	—			(20,431		)
Acquisitions	—			2,145			—			—
Fair value of plan assets at end of period	$	265,019		$	47,692		$	275,767		$	52,026
Funded status of the plans	$	(23,204	)	$	(136,158	)	$	(39,931	)	$	(145,143	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	December 31, 2018						December 31, 2017
	U.S.			Non-U.S.			U.S.			Non-U.S.
Amounts recognized in the consolidated balance sheet:
Other assets	$	524		$	433		$	—		$	405
Accrued liabilities	$	(1,011	)	$	(4,643	)	$	(1,011	)	$	(4,295	)
Pension benefits (long term)	$	(22,717	)	$	(131,948	)	$	(38,920	)	$	(141,253	)

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Pre-tax amounts included in accumulated other comprehensive loss that have not yet been recognized in net periodic benefit (income) cost as of December 31, 2018 and 2017 were as follows:

	December 31, 2018						December 31, 2017
	U.S.			Non-U.S.			U.S.			Non-U.S.
Prior service costs	$	(116	)	$	(990	)	$	(136	)	$	(1,206	)
Actuarial losses	$	(84,857	)	$	(41,844	)	$	(74,711	)	$	(48,491	)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

Pre-tax amounts included in accumulated other comprehensive loss that are expected to be recognized in net periodic benefit cost during the year ended December 31, 2019 are as follows:

	U.S.			Non-U.S.
Prior service costs	$	(20	)	$	(236	)
Actuarial losses	$	(3,105	)	$	(2,230	)

Components of Net Periodic Benefit Cost

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

	Year Ended December 31,
	2018						2017						2016
	U.S.			Non-U.S.			U.S.			Non-U.S.			U.S.			Non-U.S.
Service cost	$	852		$	4,383		$	814		$	4,025		$	807		$	3,346
Interest cost	10,824			4,207			11,700			4,341			12,580			5,041
Expected return on plan assets	(17,414		)	(2,178		)	(16,012		)	(2,617		)	(15,835		)	(3,133		)
Amortization of prior service cost and actuarial loss	2,403			2,646			1,871			2,898			1,714			2,186
Settlements	—			775			—			6,427			—			538
Net periodic benefit (income) cost	$	(3,335	)	$	9,833		$	(1,627	)	$	15,074		$	(734	)	$	7,978

Weighted Average Assumptions Used to Determine Benefit Obligations

Weighted average assumptions used to determine benefit obligations as of December 31, 2018 and 2017 were as follows:

	2018				2017
	U.S.		Non-U.S.		U.S.		Non-U.S.
Discount rate	4.25	%	2.34	%	3.55	%	2.17	%
Rate of compensation increase	N/A		2.99	%	N/A		3.17	%

Weighted Average Assumptions Used to Determine Net Periodic Benefit Costs

Weighted average assumptions used to determine net periodic benefit costs for the years ended December 31, 2018, 2017 and 2016 were as follows:

	2018				2017				2016
	U.S.		Non-U.S.		U.S.		Non-U.S.		U.S.		Non-U.S.
Discount rate	3.55	%	2.17	%	3.99	%	2.23	%	4.24	%	2.80	%
Expected return on plan assets	6.50	%	5.82	%	6.60	%	5.94	%	6.60	%	4.39	%
Rate of compensation increase	N/A		3.17	%	N/A		3.15	%	N/A		3.15	%

Pension Plan Assets at Fair Value

The fair value of the Company’s pension plan assets by category using the three-level hierarchy (see Note 11. “Fair Value Measurements and Financial Instruments”) as of December 31, 2018 and 2017 was as follows:

2018	Level 1		Level 2		Level 3		Assets measured at NAV (1)		Total
Equity funds	$	15,991	$	20,026	$	—	$	—	$	36,017
Equity funds measured at net asset value	—		—		—		103,105		103,105
Bond funds	3,104		27,666		—		—		30,770
Bond funds measured at net asset value	—		—		—		109,372		109,372
Real estate measured at net asset value	—		—		—		30,520		30,520
Cash and cash equivalents	2,927		—		—		—		2,927
Total	$	22,022	$	47,692	$	—	$	242,997	$	312,711

2017	Level 1		Level 2		Level 3		Assets measured at NAV (1)		Total
Equity funds	$	41,080	$	22,419	$	—	$	—	$	63,499
Equity funds measured at net asset value	—		—		—		76,405		76,405
Bond funds	34,997		29,607		—		—		64,604
Bond funds measured at net asset value	—		—		—		69,823		69,823
Real estate measured at net asset value	—		—		—		15,656		15,656
Hedge funds	3,603		—		110		—		3,713
Hedge funds measured at net asset value	—		—		—		29,195		29,195
Cash and cash equivalents	4,898		—		—		—		4,898
Total	$	84,578	$	52,026	$	110	$	191,079	$	327,793

⁽¹⁾ Certain assets that are measured at fair value using the NAV per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. These assets are included in this table to present total pension plan assets at fair value.

Reconciliation for Level 3 Inputs Used in Determining Fair Value

The reconciliation for which Level 3 inputs were used in determining fair value is as follows:

Beginning balance of assets classified as Level 3 as of January 1, 2017	$	16,454
Purchases, sales and settlements, net	(16,348		)
Total gain	4
Ending balance of assets classified as Level 3 as of December 31, 2017	110
Transfers into (out of) Level 3	(110		)
Ending balance of assets classified as Level 3 as of December 31, 2018	$	—

Estimated Benefit Payments for Domestic and Foreign Pension Plans

The Company estimates its benefit payments for domestic and foreign pension plans during the next ten years to be as follows:

Years Ending December 31,	U.S.		Non-U.S.		Total
2019	$	20,567	$	6,650	$	27,217
2020	20,408		6,520		26,928
2021	20,320		7,642		27,962
2022	19,771		9,829		29,600
2023	19,008		9,645		28,653
2024-2028	94,786		55,989		150,775