Pension and Other Post Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2019

Pension and Other Postretirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

														Other Post-
		Pension Benefits												Retirement Benefits
		2019							2018					2019		2018
Change in benefit obligation		Foreign		U.S.		Total		Foreign		U.S.		Total		U.S.		U.S.
Gross benefit obligation at beginning
	of year	$	111,316	$	58,734	$	170,050	$	118,352	$	62,977	$	181,329	$	4,106	$	4,729
Service cost			3,507		434		3,941		3,426		383		3,809		6		7
Interest cost			3,046		3,313		6,359		2,254		1,847		4,101		143		130
Employee contributions			73		—		73		73		—		73		—		—
Effect of plan amendments			30		—		30		—		—		—		—		—
Plan settlements			(1,087)		—		(1,087)		(10)		—		(10)		—		—
Benefits paid			(3,832)		(6,034)		(9,866)		(1,639)		(4,330)		(5,969)		(384)		(317)
Plan expenses and premiums paid			(129)		—		(129)		(161)		—		(161)		—		—
Transfer in of business acquisition			85,658		86,414		172,072		—		—		—		—		—
Actuarial loss (gain)			13,616		10,862		24,478		(5,561)		(2,143)		(7,704)		395		(443)
Translation differences and other			5,695		—		5,695		(5,418)		—		(5,418)		—		—
Gross benefit obligation at end of year		$	217,893	$	153,723	$	371,616	$	111,316	$	58,734	$	170,050	$	4,266	$	4,106
Change in plan assets
Fair value of plan assets at
year	beginning of year	$	94,826	$	49,415	$	144,241	$	98,622	$	51,964	$	150,586	$	—	$	—
Actual return on plan assets			13,458		10,663		24,121		(2,670)		457		(2,213)		—		—
Employer contributions			5,223		1,087		6,310		5,269		1,574		6,843		384		317
Employee contributions			73		—		73		73		—		73		—		—
Plan settlements			(1,087)		—		(1,087)		(10)		—		(10)		—		—
Benefits paid			(3,832)		(6,034)		(9,866)		(1,639)		(4,330)		(5,969)		(384)		(317)
Plan expenses and premiums paid			(129)		(500)		(629)		(161)		(250)		(411)		—		—
Transfer in of business acquisition			81,068		65,919		146,987		—		—		—		—		—
Translation differences			5,499		—		5,499		(4,658)		—		(4,658)		—		—
Fair value of plan assets at end of year		$	195,099	$	120,550	$	315,649	$	94,826	$	49,415	$	144,241	$	—	$	—
Net benefit obligation recognized		$	(22,794)	$	(33,173)	$	(55,967)	$	(16,490)	$	(9,319)	$	(25,809)	$	(4,266)	$	(4,106)

																Other Post-
				Pension Benefits												Retirement Benefits
				2019							2018					2019		2018
				Foreign		U.S.		Total		Foreign		U.S.		Total		U.S.		U.S.
Amounts recognized in the balance
	sheet consist of:
		Non-current assets		$	—	$	—	$	—	$	—	$	3,656	$	3,656	$	—	$	—
		Current liabilities			(359)		(2,620)		(2,979)		(206)		(559)		(765)		(426)		(446)
		Non-current liabilities			(22,435)		(30,553)		(52,988)		(16,284)		(12,416)		(28,700)		(3,840)		(3,660)
Net benefit obligation recognized				$	(22,794)	$	(33,173)	$	(55,967)	$	(16,490)	$	(9,319)	$	(25,809)	$	(4,266)	$	(4,106)
Amounts not yet reflected in net
	periodic benefit costs and included in
	accumulated other comprehensive loss:
		Prior service credit		$	1,271	$	—	$	1,271	$	1,497	$	—	$	1,497	$	—	$	—
		Accumulated loss			(22,816)		(46,560)		(69,376)		(20,089)		(25,310)		(45,399)		(734)		(338)
		AOCI			(21,545)		(46,560)		(68,105)		(18,592)		(25,310)		(43,902)		(734)		(338)
		Cumulative employer contributions
			(below) or in excess of net periodic
			benefit cost		(1,249)		13,387		12,138		2,102		15,991		18,093		(3,532)		(3,768)
Net benefit obligation recognized				$	(22,794)	$	(33,173)	$	(55,967)	$	(16,490)	$	(9,319)	$	(25,809)	$	(4,266)	$	(4,106)

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

	2019							2018
	Foreign		U.S.		Total		Foreign		U.S.		Total
Projected benefit obligation	$	217,893	$	153,723	$	371,616	$	111,316	$	12,975	$	124,291
Accumulated benefit obligation		213,060		152,930		365,990		107,685		11,808		119,493
Fair value of plan assets		195,099		120,550		315,649		94,826		—		94,826

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

	2019							2018
	Foreign		U.S.		Total		Foreign		U.S.		Total
Projected benefit obligation	$	217,893	$	153,723	$	371,616	$	111,316	$	12,975	$	124,291
Fair value of plan assets		195,099		120,550		315,649		94,826		—		94,826

Schedule of Net Benefit Costs [Table Text Block]

	2019							2018
	Foreign		U.S.		Total		Foreign		U.S.		Total
Service cost	$	3,507	$	434	$	3,941	$	3,426	$	383	$	3,809
Interest cost		3,046		3,313		6,359		2,254		1,847		4,101
Expected return on plan assets		(3,668)		(3,227)		(6,895)		(2,228)		(2,803)		(5,031)
Settlement loss		258		—		258		2		—		2
Actuarial loss amortization		757		2,348		3,105		881		2,276		3,157
Prior service (credit) cost
amortization		(165)		—		(165)		(175)		59		(116)
Net periodic benefit cost	$	3,735	$	2,869	$	6,603	$	4,160	$	1,762	$	5,922

		2017
	Foreign		U.S.		Total
Service cost	$	3,219	$	337	$	3,556
Interest cost		2,066		1,932		3,998
Expected return on plan assets		(1,994)		(3,067)		(5,061)
Settlement loss		—		1,946		1,946
Actuarial loss amortization		862		2,396		3,258
Prior service (credit) cost amortization		(167)		63		(104)
Net periodic benefit cost	$	3,986	$	3,607	$	7,593

		2019		2018		2017
Service cost	$	6	$	7	$	8
Interest cost		143		130		144
Actuarial loss amortization		—		42		54
Net periodic benefit costs	$	149	$	179	$	206

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

			2019							2018
			Foreign		U.S.		Total		Foreign		U.S.		Total
Net loss (gain) arising during
	the period		$	3,826	$	3,926	$	7,752	$	(663)	$	453	$	(210)
Recognition of amortization in net
	periodic benefit cost
		Prior service credit (cost)		196		—		196		175		(59)		116
		Actuarial loss		(1,015)		(2,347)		(3,362)		(883)		(2,276)		(3,159)
Effect of exchange rates on amounts
	included in AOCI			(61)		—		(61)		(890)		—		(890)
Total recognized in other
		comprehensive loss (income)		2,946		1,579		4,525		(2,261)		(1,882)		(4,143)
Total recognized in net periodic
	benefit cost and other
	comprehensive loss (income)		$	6,681	$	4,448	$	11,128	$	1,899	$	(120)	$	1,779

			2017
				Foreign		U.S.		Total
Net gain arising during period			$	715	$	(1,672)	$	(957)
Recognition of amortization in net periodic benefit
		Prior service credit (cost)		167		(63)		104
		Actuarial loss		(862)		(4,342)		(5,204)
Effect of exchange rates on amounts included
	in AOCI			2,308		—		2,308
Total recognized in other comprehensive loss				2,328		(6,077)		(3,749)
Total recognized in net periodic benefit cost and
	other comprehensive loss		$	6,314	$	(2,470)	$	3,844

			2019		2018		2017
Net (gain) loss arising during period		$	395	$	(443)	$	295
Amortization of actuarial loss in net periodic
	benefit costs		—		(42)		(54)
Total recognized in other comprehensive (income)
	loss		395		(485)		241
Total recognized in net periodic benefit cost and
	other comprehensive (income) loss	$	544	$	(306)	$	447

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

							Other Post-
	Pension Plans						Retirement
	Foreign		U.S.		Total		Benefits
Actuarial loss	$	889	$	2,034	$	2,923	$	—
Prior service credit		(164)		—		(164)		—
	$	725	$	2,034	$	2,759	$	—

Schedule of Assumptions Used [Table Text Block]

					Other Postretirement
	Pension Benefits				Benefits
	2019		2018		2019		2018
U.S. Plans:
Discount rate	3.06	%	4.07	%	2.98	%	4.03	%
Rate of compensation increase	6.00	%	3.63	%	N/A		N/A
Foreign Plans:
Discount rate	1.83	%	2.47	%	N/A		N/A
Rate of compensation increase	2.58	%	2.89	%	N/A		N/A

						Other Postretirement
		Pension Benefits				Benefits
		2019		2018		2019		2018
U.S. Plans:
Discount rate		4.08	%	3.44	%	4.03	%	3.39	%
Expected long-term return on
	plan assets	5.75	%	5.95	%	N/A		N/A
Rate of compensation increase		5.50	%	3.63	%	N/A		N/A
Foreign Plans:
Discount rate		2.30	%	2.33	%	N/A		N/A
Expected long-term return on
	plan assets	3.13	%	2.22	%	N/A		N/A
Rate of compensation increase		2.87	%	2.89	%	N/A		N/A

		2019		2018
Health care cost trend rate for next year		5.90	%	6.20	%
Rate to which the cost trend rate is assumed to decline (the
	ultimate trend rate)	4.50	%	4.50	%
Year that the rate reaches the ultimate trend rate		2037		2037

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

		1% Point		1% Point
		Increase		Decrease
Effect on total service and interest cost	$	11	$	(10)
Effect on postretirement benefit obligations		311		(272)

Schedule of Allocation of Plan Assets [Table Text Block]

Asset Category		Target		2019		2018
U.S. Plans
Equity securities		10	%	32	%	9	%
Debt securities		90	%	64	%	90	%
Other		—	%	4	%	1	%
	Total	100	%	100	%	100	%
Foreign Plans
Equity securities		38	%	34	%	21	%
Debt securities		51	%	45	%	76	%
Other		11	%	21	%	3	%
	Total	100	%	100	%	100	%

						Fair Value Measurements at December 31, 2019
				Total			Using Fair Value Hierarchy
U.S. Pension Assets				Fair Value			Level 1		Level 2		Level 3
Cash and cash equivalents				$	450		$	450	$	—	$	—
Pooled separate accounts					64,636			—		64,636		—
Real estate					4,060			—		—		4,060
	Subtotal U.S. pension plan assets in fair value hierarchy			$	69,146		$	450	$	64,636	$	4,060
Commingled funds measured at NAV					51,404
		Total U.S. pension plan assets		$	120,550
Foreign Pension Assets
Cash and cash equivalents				$	1,502		$	1,502	$	—	$	—
Insurance contract					92,657			—		—		92,657
Diversified equity securities - registered investment companies					8,604			—		8,604		—
Fixed income – foreign registered investment companies					3,021			—		3,021		—
Fixed income government securities					32,512			—		32,512		—
Real estate					5,521			—		—		5,521
Other - alternative investments					9,436			—		—		9,436
	Sub-total of foreign pension assets in fair value hierarchy			$	153,253		$	1,502	$	44,137	$	107,614
Commingled funds measured at NAV					2,037
Diversified investment fund - registered investment
	companies measured at NAV				39,809
		Total foreign pension assets		$	195,099
			Total pension assets in fair value hierarchy	$	222,399		$	1,952	$	108,773	$	111,674
			Total pension assets measured at NAV		93,250
			Total pension assets	$	315,649

						Fair Value Measurements at December 31, 2018
				Total			Using Fair Value Hierarchy
U.S. Pension Assets				Fair Value			Level 1		Level 2		Level 3
Cash and cash equivalents				$	450		$	450	$	—	$	—
	Subtotal U.S. pension plan assets in fair value hierarchy			$	450		$	450	$	—	$	—
Commingled funds measured at NAV					48,965
		Total U.S. pension plan assets		$	49,415
Foreign Pension Assets
Cash and cash equivalents				$	209		$	209	$	—	$	—
Insurance contract					79,873			—		—		79,873
Diversified equity securities - registered investment companies					7,701			—		7,701		—
Fixed income - foreign registered investment companies					2,658			—		2,658		—
Real estate					2,382			—		—		2,382
	Subtotal foreign pension assets in fair value hierarchy			$	92,823		$	209	$	10,359	$	82,255
Commingled funds measured at NAV					2,003
		Total foreign pension plan assets		$	94,826
			Total pension assets in fair value hierarchy	$	93,273		$	659	$	10,359	$	82,255
			Total pension assets measured at NAV		50,968
			Total pension assets	$	144,241

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

			Insurance				Alternative
			Contract		Real Estate		Investments		Total
Balance as of December 31, 2017		$	82,092	$	2,428	$	—	$	84,520
	Purchases		4,707		—		—		4,707
	Settlements		(1,399)		—		—		(1,399)
	Unrealized (losses) gains		(1,817)		94		—		(1,723)
	Currency translation adjustment		(3,710)		(140)		—		(3,850)
Balance as of December 31, 2018			79,873		2,382		—		82,255
	Purchases		3,762		—		1,029		4,791
	Assets acquired in business combinations		129		7,058		8,914		16,101
	Sales		—		(238)		(278)		(516)
	Settlements		(1,730)		—		—		(1,730)
	Unrealized gains (losses)		12,199		403		(960)		11,642
	Currency translation adjustment		(1,576)		(24)		731		(869)
Balance as of December 31, 2019		$	92,657	$	9,581	$	9,436	$	111,674

Schedule of Expected Benefit Payments [Table Text Block]

							Other Post-
	Pension Benefits						Retirement
	Foreign		U.S.		Total		Benefits
2020	$	5,600	$	5,947	$	11,547	$	426
2021		6,219		5,209		11,428		400
2022		6,297		5,191		11,488		373
2023		6,740		6,054		12,794		354
2024		6,797		6,238		13,035		326
2024 to 2028		41,379		31,026		72,405		1,291