Note 15 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

	FISCAL YEAR
	20 17			20 16
	(in thousands)
Change in benefit obligation
Benefit obligation, beginning of year	$	277,813		$	243,717
Service cost		1,628			1,032
Interest cost		5,559			6,580
Benefits and expenses paid		(10,267	)		(8,551	)
Actuarial loss (gain)		13,351			73,600
Member contributions		262			225
Currency translation adjustment		32,202			(38,790	)
Benefit obligation, end of year	$	320,548		$	277,813

	FISCAL YEAR
	2017			2016
	(in thousands)
Change in plan assets
Plan assets, beginning of year	$	258,365		$	239,281
Actual return on assets		25,691			59,364
Company contributions		2,812			4,991
Benefits paid		(10,267	)		(8,552	)
Currency translation adjustment		30,565			(36,719	)
Plan assets, end of year	$	307,166		$	258,365
Reconciliation to balance sheet
Funded status benefit asset/(liability)	$	(13,382	)	$	(19,448	)
Net amount recognized	$	(13,382	)	$	(19,448	)
Amounts recognized in accumulated other comprehensive income (after tax)
Unrecognized actuarial loss	$	48,443		$	49,547
Unamortized prior service costs		(471	)		(311	)
Total amount recognized	$	47,972		$	49,236
Accumulated Benefit Obligation	$	313,257		$	274,414

	END OF FISCAL YEAR
	20 17		20 16
	(in thousands)
UK Plan
Projected Benefit Obligation	$	190,992	$	171,172
Accumulated Benefit Obligation		190,992		171,172
Plan Assets		179,322		153,132
Dutch Plan
Projected Benefit Obligation	$	129,554	$	106,641
Accumulated Benefit Obligation		122,265		103,242
Plan Assets		127,844		105,233

	FISCAL YEAR
	2017			2016
	(in thousands)
Change in benefit obligation
Benefit obligation, beginning of year	$	29,700		$	25,860
Service cost		0			440
Interest cost		1,256			1,269
Benefits paid		(1,943	)		(1,012	)
Actuarial loss (gain)		2,906			3,143
Benefit obligation, end of year	$	31,919		$	29,700

	20 17		20 16
	(in thousands)
Current liabilities	$	2,030	$	1,890
Non-current liabilities		29,889		27,810
Total benefit obligation	$	31,919	$	29,700

	20 17		20 16
	(in thousands)
Unrecognized actuarial loss		8,582	$	5,626

Schedule of Net Benefit Costs [Table Text Block]

	FISCAL YEAR
	2017			2016			2015
	(in thousands)
Components of net periodic benefit cost
Service cost	$	1,628		$	1,032		$	1,061
Interest cost		5,559			6,580			8,384
Expected return on plan assets		(6,496	)		(7,553	)		(8,764	)
Amortization of prior service cost		(34	)		33			33
Recognized net actuarial (gains)/losses		1,287			1076			1,359
Net periodic benefit cost	$	1,944		$	1,168		$	2,073

Schedule of Assumptions Used [Table Text Block]

	FISCAL YEAR
	201 7			201 6			201 5
Weighted average assumptions used to determine net periodic benefit cost
Discount rate		2.0	%		2.7	%		3.0	%
Expected return on plan assets		2.3	%		3.1	%		4.0	%
Rate of compensation		1.75	%		2.0	%		2.0	%
Weighted average assumptions used to determine benefit obligations
Discount rate		2.2	%		2.3	%		3.4	%
Rate of compensation		1.75	%		2.0	%		2.0	%

	20 17			20 16			20 15
	(in thousands, except for assumptions)
A ssumptions used to determine net periodic benefit cost
Discount rate		3.85	%		4.25	%		4.0	%
Rate of compensation		-			4.0	%		4.0	%
Assumptions used to determine benefit obligations
Discount rate		3.5	%		3.85	%		4.25	%
Rate of compensation		-			4.0	%		4.0	%
Components of net periodic benefit cost
Service cost	$	0		$	440		$	594
Interest cost		1,256			1,269			1,113
Amortization s		364			811			522
Net periodic benefit cost	$	1,620		$	2,520		$	2,229

Schedule of Allocation of Plan Assets [Table Text Block]

	FISCAL YEAR
	2018			2017			2016
	Target Allocation			Percentage of Plan Assets at Year End
Asset Category:
Equity Securities	15%	-	20%		16	%		15	%
Debt and Debt Securities	35%	-	45%		32	%		36	%
Other	40%	-	50%		52	%		49	%
		100%			100	%		100	%

	Pension Plan Assets by Category as of December 31, 2017
	Dutch Plan		UK Plan		Total
			(in thousands)
Level 1	$	0	$	87,521	$	87,521
Level 2		0		68,668		68,668
Level 3		127,844		23,133		150,977
Total	$	127,844	$	179,322	$	307,166

	Pension Plan Assets by Category as of January 1, 2017
	Dutch Plan		UK Plan		Total
			(in thousands)
Level 1	$	0	$	80,048	$	80,048
Level 2		0		50,364		50,364
Level 3		105,233		22,720		127,953
Total	$	105,233	$	153,132	$	258,365

	2017
	Level 1		Level 2		Level 3
			(in thousands)
Asset Class
Equity Securities	$	48,285	$	0	$	0
Debt and Debt Securities		36,780		41,381		19,883
Other (including cash)		2,456		27,287		131,094
	$	87,521	$	68,668	$	150,977

	201 6
	Level 1		Level 2		Level 3
			(in thousands)
Asset Class
Equity Securities	$	37,696	$	0	$	0
Debt and Debt Securities		37,175		36,378		19,224
Other (including cash)		5,177		13,986		108,729
	$	80,048	$	50,364	$	127,953

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

	201 7
	(in thousands)
Balance of level 3 assets, beginning of year	$	127,953
Interest cost		2,633
Benefits paid		(3,728	)
Assets transferred in to (out of) Level 3		(2,089	)
Actuarial gain (loss)		8,753
Translation adjustment		17,455
Ending Balance of level 3 assets	$	150,977

Schedule of Expected Benefit Payments [Table Text Block]

FISCAL YEAR			EXPECTED PAYMENTS
			(in thousands)
201 8			$	9,115
201 9				9,334
20 20				9,650
20 21				10,011
20 22				10,257
2023	-	2027		54,661

FISCAL YEAR			EXPECTED PAYMENTS
			(in thousands)
20 18			$	2,030
20 19				2,030
20 20				2,030
20 21				2,030
202 2				2,030
2023	-	2027		9,990