Note 8 - Pension (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

Year ended December 31,	U.S. Plans						Non-U.S. Plans						Total
(dollars in thousands)	2019			2018			2019			2018			2019			2018
Change in projected benefit obligation:
Projected benefit obligation, beginning of year	$	322,594		$	354,053		$	29,978		$	31,967		$	352,572		$	386,020
Service cost		3,368			4,009			1,032			1,142			4,400			5,151
Interest cost		13,530			12,615			3,068			2,984			16,598			15,599
Exchange rate fluctuations		—			—			1,549			138			1,549			138
Actuarial (gain) loss		28,820			(28,481	)		8,878			(3,056	)		37,698			(31,537	)
Settlements paid		(112	)		—			—			—			(112	)		—
Benefits paid		(19,745	)		(19,602	)		(3,210	)		(3,197	)		(22,955	)		(22,799	)
Projected benefit obligation, end of year	$	348,455		$	322,594		$	41,295		$	29,978		$	389,750		$	352,572
Change in fair value of plan assets:
Fair value of plan assets, beginning of year	$	304,084		$	343,219		$	—		$	—		$	304,084		$	343,219
Actual return on plan assets		61,961			(19,533	)		—			—			61,961			(19,533	)
Employer contributions		112			—			3,210			3,197			3,322			3,197
Settlements paid		(112	)		—			—			—			(112	)		—
Benefits paid		(19,745	)		(19,602	)		(3,210	)		(3,197	)		(22,955	)		(22,799	)
Fair value of plan assets, end of year	$	346,300		$	304,084		$	—		$	—		$	346,300		$	304,084
Funded ratio		99.4	%		94.3	%		0	%		0	%		88.9	%		86.2	%
Funded status and net accrued pension benefit cost	$	(2,155	)	$	(18,510	)	$	(41,295	)	$	(29,978	)	$	(43,450	)	$	(48,488	)

Schedule of Estimated Contributions to Defined Benefit Plan [Table Text Block]

(dollars in thousands)	U.S. Plans		Non-U.S. Plans		Total
Estimated contributions in 2020	$	163	$	2,486	$	2,649
Contributions made in 2019	$	112	$	3,210	$	3,322
Contributions made in 2018	$	—	$	3,197	$	3,197

Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]

December 31,	U.S. Plans				Non-U.S. Plans				Total
(dollars in thousands)	2019		2018		2019		2018		2019		2018
Projected benefit obligation	$	268,232	$	322,594	$	41,295	$	29,978	$	309,527	$	352,572
Accumulated benefit obligation	$	268,232	$	322,594	$	35,557	$	26,717	$	303,789	$	349,311
Fair value of plan assets	$	260,365	$	304,084	$	—	$	—	$	260,365	$	304,084

Schedule of Allocation of Plan Assets [Table Text Block]

December 31,	Measured at NAV as a practical expedient				Target Allocation
(dollars in thousands)	2019		2018		2020
Short-term investments	$	7,489	$	9,796		3	%
Real estate		7,623		6,198		2	%
Equity securities		139,060		108,952		40	%
Debt securities		155,574		146,080		45	%
Hedge funds		36,554		33,058		10	%
	$	346,300	$	304,084		100	%

Pension Plan [Member]

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

Year ended December 31,	U.S. Plans						Non-U.S. Plans						Total
(dollars in thousands)	2019			2018			2019			2018			2019			2018
Service cost (benefits earned during the period)	$	3,368		$	4,009		$	1,032		$	1,142		$	4,400		$	5,151
Interest cost on projected benefit obligation		13,530			12,615			3,068			2,984			16,598			15,599
Expected return on plan assets		(20,781	)		(22,658	)		—			—			(20,781	)		(22,658	)
Amortization of unrecognized:
Prior service cost (credit)		—			1			(200	)		(201	)		(200	)		(200	)
Actuarial loss		4,396			6,472			413			622			4,809			7,094
Settlement charge		9			—			—			92			9			92
Pension expense	$	522		$	439		$	4,313		$	4,639		$	4,835		$	5,078

Defined Benefit Plan, Assumptions [Table Text Block]

	U.S. Plans				Non-U.S. Plans
	2019		2018		2019		2018
Net periodic pension expense:
Discount rate		4.31% to 4.33%		3.64% to 3.69%		10.06%		9.40%
Expected long-term rate of return on plan assets		6.50%		7.00%		Not applicable		Not applicable
Rate of compensation increase		Not applicable		Not applicable		4.30%		4.30%
Cash balance interest crediting rate		5.50%		5.50%		Not applicable		Not applicable
Benefit obligations:
Discount rate		3.45% to 3.50%		4.31% to 4.33%		8.80%		10.60%
Rate of compensation increase		Not applicable		Not applicable		4.30%		4.30%
Cash balance interest crediting rate		5.50%		5.50%		Not applicable		Not applicable

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

December 31,
(dollars in thousands)	2019			2018
Pension asset	$	5,712		$	—
Pension liability (current portion)		(2,543	)		(3,282	)
Pension liability		(46,619	)		(45,206	)
Net accrued pension liability	$	(43,450	)	$	(48,488	)

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

December 31,	U.S. Plans				Non-U.S. Plans						Total
(dollars in thousands)	2019		2018		2019			2018			2019			2018
Net actuarial loss	$	88,703	$	105,468	$	17,772		$	8,732		$	106,475		$	114,200
Prior service cost (credit)		—		—		(2,351	)		(2,447	)		(2,351	)		(2,447	)
Total cost in AOCI	$	88,703	$	105,468	$	15,421		$	6,285		$	104,124		$	111,753

Schedule of Expected Benefit Payments [Table Text Block]

Fiscal Year
(dollars in thousands)	U.S. Plans		Non-U.S. Plans		Total
2020	$	20,040	$	2,486	$	22,526
2021	$	20,212	$	2,580	$	22,792
2022	$	20,412	$	2,988	$	23,400
2023	$	20,669	$	2,763	$	23,432
2024	$	20,748	$	3,002	$	23,750
2025-2029	$	103,285	$	18,071	$	121,356