Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(5)(i)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2446-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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Note 15 - Employee Benefit Plans - Assets at Fair Value (Details) - Foreign Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Asset Category:
Percentage of Plan Assets at Year End	100.00%	100.00%
Assets at fair value	$ 307,166	$ 258,365	$ 239,281
Dutch Plan [Member]
Asset Category:
Assets at fair value	127,844	105,233
Uk Plan [Member]
Asset Category:
Assets at fair value	179,322	153,132
Fair Value, Inputs, Level 1 [Member]
Asset Category:
Assets at fair value	87,521	80,048
Fair Value, Inputs, Level 1 [Member] \| Dutch Plan [Member]
Asset Category:
Assets at fair value	0	0
Fair Value, Inputs, Level 1 [Member] \| Uk Plan [Member]
Asset Category:
Assets at fair value	87,521	80,048
Fair Value, Inputs, Level 2 [Member]
Asset Category:
Assets at fair value	68,668	50,364
Fair Value, Inputs, Level 2 [Member] \| Dutch Plan [Member]
Asset Category:
Assets at fair value	0	0
Fair Value, Inputs, Level 2 [Member] \| Uk Plan [Member]
Asset Category:
Assets at fair value	68,668	50,364
Fair Value, Inputs, Level 3 [Member]
Asset Category:
Assets at fair value	150,977	127,953
Fair Value, Inputs, Level 3 [Member] \| Dutch Plan [Member]
Asset Category:
Assets at fair value	127,844	105,233
Fair Value, Inputs, Level 3 [Member] \| Uk Plan [Member]
Asset Category:
Assets at fair value	$ 23,133	$ 22,720
Maximum [Member]
Asset Category:
Target Allocation	100.00%
Equity Securities [Member]
Asset Category:
Target Allocation	20.00%
Percentage of Plan Assets at Year End	16.00%	15.00%
Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Asset Category:
Assets at fair value	$ 48,285	$ 37,696
Equity Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Asset Category:
Assets at fair value	0	0
Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Asset Category:
Assets at fair value	$ 0	$ 0
Equity Securities [Member] \| Minimum [Member]
Asset Category:
Target Allocation	15.00%
Debt Securities [Member]
Asset Category:
Target Allocation	45.00%
Percentage of Plan Assets at Year End	32.00%	36.00%
Debt Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Asset Category:
Assets at fair value	$ 36,780	$ 37,175
Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Asset Category:
Assets at fair value	41,381	36,378
Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Asset Category:
Assets at fair value	$ 19,883	$ 19,224
Debt Securities [Member] \| Minimum [Member]
Asset Category:
Target Allocation	35.00%
Other Securities [Member]
Asset Category:
Target Allocation	50.00%
Percentage of Plan Assets at Year End	52.00%	49.00%
Other Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Asset Category:
Assets at fair value	$ 2,456	$ 5,177
Other Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Asset Category:
Assets at fair value	27,287	13,986
Other Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Asset Category:
Assets at fair value	$ 131,094	$ 108,729
Other Securities [Member] \| Minimum [Member]
Asset Category:
Target Allocation	40.00%
Other Securities [Member] \| Maximum [Member]
Asset Category:
Target Allocation