Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Plan Assets and Benefit Obligations of Defined Benefit Pension Plans

The plan assets and benefit obligations of the defined benefit pension plans are measured at December 31 of each year. 

	U.S. Plans									Non-U.S. Plans
(DOLLARS IN THOUSANDS)	2019			2018			2017			2019			2018			2017
Components of net periodic benefit cost
Service cost for benefits earned(1)	$	1,378		$	1,971		$	2,175		$	19,319		$	18,738		$	18,652
Interest cost on projected benefit obligation(2)	21,954			19,393			20,075			17,775			17,704			17,116
Expected return on plan assets(2)	(27,927		)	(30,994		)	(35,577		)	(43,480		)	(50,546		)	(50,626		)
Net amortization of deferrals(2)	5,464			6,592			5,424			11,654			11,798			14,403
Settlements and curtailments(2)	—			—			—			189			—			2,746
Net periodic benefit cost	869			(3,038		)	(7,903		)	5,457			(2,306		)	2,291
Defined contribution and other retirement plans	9,363			10,527			8,604			9,001			6,859			5,681
Total expense	$	10,232		$	7,489		$	701		$	14,458		$	4,553		$	7,972
Changes in plan assets and benefit obligations recognized in OCI
Net actuarial (gain) loss	$	(3,140	)	$	21,050					$	61,865		$	11,937
Recognized actuarial loss	(5,421		)	(6,549		)				(12,479		)	(12,590		)
Prior service cost	—			—						—			2,776
Recognized prior service (cost) credit	(43		)	(43		)				636			792
Currency translation adjustment	—			—						6,584			(16,978		)
Total (gain) loss recognized in OCI (before tax effects)	$	(8,604	)	$	14,458					$	56,606		$	(14,063	)

Components of Net Periodic Benefit Cost and Changes in Plan Assets and Benefit Obligations Recognized in OCI

Amounts Expected to be Recognized in Net Periodic Cost

The amounts expected to be recognized in net periodic cost in 2020 are: 

(DOLLARS IN THOUSANDS)	U.S. Plans		Non-U.S. Plans			Postretirement Benefits
Actuarial loss recognition	$	7,388	$	15,851		$	1,367
Prior service cost (credit) recognition	43		(345		)	(5,964		)

Weighted-Average Actuarial Assumption Used to Determine Expense

	U.S. Plans						Non-U.S. Plans
	2019		2018		2017		2019		2018		2017
Discount rate	4.31	%	3.69	%	4.19	%	2.22	%	2.15	%	2.14	%
Expected return on plan assets	5.60	%	6.20	%	7.30	%	4.87	%	5.19	%	5.95	%
Rate of compensation increase	3.25	%	3.25	%	3.25	%	1.93	%	1.98	%	1.97	%

Changes in Postretirement Benefit Obligation and Plan Assets

Changes in the postretirement benefit obligation and plan assets, as applicable, are detailed in the following table: 

	U.S. Plans						Non-U.S. Plans						Postretirement Benefits
(DOLLARS IN THOUSANDS)	2019			2018			2019			2018			2019			2018
Benefit obligation at beginning of year	$	562,043		$	602,783		$	957,935		$	973,061		$	59,625		$	82,714
Service cost for benefits earned	1,378			1,971			19,319			18,738			568			755
Interest cost on projected benefit obligation	21,954			19,393			17,775			17,704			2,265			2,460
Actuarial (gain) loss	68,839			(33,284		)	119,891			(29,433		)	3,941			(6,677		)
Plan amendments	—			—			—			2,776			—			(14,862		)
Adjustments for expense/tax contained in service cost	—			—			(1,333		)	(1,290		)	—			—
Plan participants’ contributions	—			—			2,803			2,047			437			435
Benefits paid	(33,560		)	(32,093		)	(28,977		)	(33,862		)	(2,662		)	(5,200		)
Curtailments / settlements	—			—			(3,455		)	(2,751		)	—			—
Translation adjustments	—			—			13,935			(49,027		)	—			—
Acquisitions/Transferred Liabilities	—			3,273			—			48,356			—			—
Other	—			—			1,191			11,616			—			—
Benefit obligation at end of year	$	620,654		$	562,043		$	1,099,084		$	957,935		$	64,174		$	59,625
Fair value of plan assets at beginning of year	$	532,381		$	581,917		$	896,782		$	929,810
Actual return on plan assets	99,904			(23,339		)	100,163			6,699
Employer contributions	3,683			3,524			20,031			18,238
Participants’ contributions	—			—			2,803			2,047
Benefits paid	(33,560		)	(32,093		)	(28,977		)	(33,862		)
Settlements	—			—			(3,455		)	(1,564		)
Translation adjustments	—			—			16,982			(47,247		)
Acquisitions/Transferred Assets	—			2,372			—			21,672
Other	—			—			954			989
Fair value of plan assets at end of year	$	602,408		$	532,381		$	1,005,283		$	896,782
Funded status at end of year	$	(18,246	)	$	(29,662	)	$	(93,801	)	$	(61,153	)

Amounts Recognized in Balance Sheet

	U.S. Plans						Non-U.S. Plans
(DOLLARS IN THOUSANDS)	2019			2018			2019			2018
Other assets	$	35,239		$	20,949		$	50,418		$	54,434
Other current liabilities	(4,193		)	(4,092		)	(1,179		)	(882		)
Retirement liabilities	(49,292		)	(46,519		)	(143,040		)	(114,705		)
Net amount recognized	$	(18,246	)	$	(29,662	)	$	(93,801	)	$	(61,153	)

Amounts Recognized in Accumulated Other Comprehensive Income

	U.S. Plans				Non-U.S. Plans						Postretirement Benefits
(DOLLARS IN THOUSANDS)	2019		2018		2019			2018			2019			2018
Net actuarial loss	$	142,828	$	151,389	$	376,991		$	321,144		$	15,436		$	12,627
Prior service cost (credit)	108		151		(3,087		)	(3,926		)	(27,138		)	(33,189		)
Total AOCI (before tax effects)	$	142,936	$	151,540	$	373,904		$	317,218		$	(11,702	)	$	(20,562	)

Accumulated Benefit Obligation

	U.S. Plans						Non-U.S. Plans
(DOLLARS IN THOUSANDS)	2019			2018			2019			2018
Accumulated Benefit Obligation — end of year	$	618,486		$	559,775		$	1,062,515		$	923,586
Information for Pension Plans with an ABO in excess of Plan Assets:
Projected benefit obligation	$	55,714		$	52,714		$	656,574		$	582,466
Accumulated benefit obligation	55,671			52,690			620,087			548,116
Fair value of plan assets	2,229			2,103			512,356			466,878
Weighted-average assumptions used to determine obligations at December 31
Discount rate	3.26		%	4.31		%	1.50		%	2.22		%
Rate of compensation increase	3.25		%	3.25		%	2.48		%	1.91		%

Estimated Future Benefit Payments

(DOLLARS IN THOUSANDS)	U.S. Plans		Non-U.S. Plans		Postretirement Benefits
Estimated Future Benefit Payments
2020	$	37,152	$	27,460	$	3,808
2021	37,908		27,607		3,845
2022	38,411		28,169		3,805
2023	38,796		28,993		3,797
2024	38,831		30,142		3,891
2025 - 2029	189,425		169,438		19,442
Contributions
Required Company Contributions in Following Year (2020)	$	4,387	$	20,944	$	3,808

Percentage of Assets Invested

	U.S. Plans				Non-U.S. Plans
	2019		2018		2019		2018
Cash and cash equivalents	1	%	1	%	1	%	3	%
Equities	13	%	25	%	14	%	12	%
Fixed income	86	%	74	%	37	%	36	%
Property	—	%	—	%	8	%	8	%
Alternative and other investments	—	%	—	%	40	%	41	%

Fair Value Hierarchy of Plan Assets

The following tables present the Company's plan assets for the U.S. and non-U.S. plans using the fair value hierarchy as of December 31, 2019 and 2018. The plans’ assets were accounted for at fair value and are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company's assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels. For more information on a description of the fair value hierarchy, see Note 17. 

	U.S. Plans for the Year Ended
	December 31, 2019
(DOLLARS IN THOUSANDS)	Level 1		Level 2		Level 3		Total
Cash Equivalents	$	—	$	4,431	$	—	$	4,431
Fixed Income Securities
Government & Government Agency Bonds	—		19,427		—		19,427
Corporate Bonds	—		112,137		—		112,137
Municipal Bonds	—		8,460		—		8,460
Assets measured at net asset value(1)	—		—		—		456,606
Total	$	—	$	144,455	$	—	$	601,061
Receivables							$	1,347
Total							$	602,408

 

	U.S. Plans for the Year Ended
	December 31, 2018
(DOLLARS IN THOUSANDS)	Level 1		Level 2		Level 3		Total
Cash Equivalents	$	—	$	3,490	$	—	$	3,490
Fixed Income Securities
Government & Government Agency Bonds	—		17,827		—		17,827
Corporate Bonds	—		96,566		—		96,566
Municipal Bonds	—		8,138		—		8,138
Assets measured at net asset value(1)	—		—		—		404,895
Total	$	—	$	126,021	$	—	$	530,916
Receivables							$	1,465
Total							$	532,381

_______________________ 

(1) Investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in the table above are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheet. The total amount measured at net asset value includes approximately $80.4 million and $133.1 million in pooled equity funds and $376.0 million and $271.8 million in fixed income mutual funds for the years ended December 31, 2019 and 2018, respectively.

	Non-U.S. Plans for the Year Ended
	December 31, 2019
(DOLLARS IN THOUSANDS)	Level 1		Level 2		Level 3		Total
Cash	$	5,921	$	—	$	—	$	5,921
Equity Securities
U.S. Large Cap	58,926		25,616		—		84,542
Non-U.S. Large Cap	24,720		—		—		24,720
Non-U.S. Mid Cap	956		—		—		956
Non-U.S. Small Cap	738		—		—		738
Emerging Markets	27,374		—		—		27,374
Fixed Income Securities
U.S. Treasuries/Government Bonds	108		—		—		108
U.S. Corporate Bonds	—		32,013		—		32,013
Non-U.S. Treasuries/Government Bonds	117,890		—		—		117,890
Non-U.S. Corporate Bonds	33,320		150,034		—		183,354
Non-U.S. Asset-Backed Securities	—		33,654		—		33,654
Non-U.S. Other Fixed Income	2,553		—		—		2,553
Alternative Types of Investments
Insurance Contracts	—		152,025		266		152,291
Derivative Financial Instruments	—		65,016		—		65,016
Absolute Return Funds	3,431		154,463		—		157,894
Other	—		2,330		30,183		32,513
Real Estate
Non-U.S. Real Estate	—		—		83,746		83,746
Total	$	275,937	$	615,151	$	114,195	$	1,005,283

	Non-U.S. Plans for the Year Ended
	December 31, 2018
(DOLLARS IN THOUSANDS)	Level 1		Level 2		Level 3		Total
Cash	$	25,386	$	—	$	—	$	25,386
Equity Securities
U.S. Large Cap	35,929		11,340		—		47,269
Non-U.S. Large Cap	30,841		8,381		—		39,222
Non-U.S. Mid Cap	905		—		—		905
Non-U.S. Small Cap	628		—		—		628
Emerging Markets	22,608		—		—		22,608
Fixed Income Securities
U.S. Treasuries/Government Bonds	131		—		—		131
U.S. Corporate Bonds	—		29,682		—		29,682
Non-U.S. Treasuries/Government Bonds	137,267		5,494		—		142,761
Non-U.S. Corporate Bonds	30,893		85,841		—		116,734
Non-U.S. Asset-Backed Securities	—		32,587		—		32,587
Non-U.S. Other Fixed Income	2,324		—		—		2,324
Alternative Types of Investments
Insurance Contracts	—		152,947		254		153,201
Derivative Financial Instruments	—		54,512		—		54,512
Absolute Return Funds	3,584		128,111		—		131,695
Other	—		2,374		25,913		28,287
Real Estate
Non-U.S. Real Estate	—		—		68,850		68,850
Total	$	290,496	$	511,269	$	95,017	$	896,782

Reconciliation of Level 3 Non-U.S. Plan Assets Held

The following table presents a reconciliation of Level 3 non-U.S. plan assets held during the year ended December 31, 2019: 

	Non-U.S. Plans
(DOLLARS IN THOUSANDS)	Real Estate			Hedge Funds			Total
Ending balance as of December 31, 2018	$	69,104		$	25,913		$	95,017
Actual return on plan assets	15,033			5,811			20,844
Purchases, sales and settlements	(124		)	(1,542		)	(1,666		)
Ending balance as of December 31, 2019	$	84,013		$	30,182		$	114,195

Weighted Average Assumptions Used to Determine Postretirement Benefit Expense and Obligation

The following weighted average assumptions were used to determine the postretirement benefit expense and obligation for the years ended December 31: 

	Expense				Liability
	2019		2018		2019		2018
Discount rate	4.30	%	3.70	%	3.30	%	4.30	%
Current medical cost trend rate	7.50	%	7.75	%	7.25	%	7.50	%
Ultimate medical cost trend rate	4.75	%	4.75	%	4.75	%	4.75	%
Medical cost trend rate decreases to ultimate rate in year	2030		2030		2030		2030

Sensitivity of Disclosures to Changes in Selected Assumptions

The following table presents the sensitivity of disclosures to changes in selected assumptions for the year ended December 31, 2019: 

(DOLLARS IN THOUSANDS)	U.S. Pension Plans		Non-U.S. Pension Plans	Postretirement Benefit Plan
25 Basis Point Decrease in Discount Rate
Change in PBO	14,613		55,415	N/A
Change in ABO	14,534		55,374	1,944
Change in pension expense	(102	)	2,687	40
25 Basis Point Decrease in Long-Term Rate of Return
Change in pension expense	1,248		1,935	N/A