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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

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- Definition

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Gain or Loss
-URI http://asc.fasb.org/extlink&oid=49168827

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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- Definition

The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64839914&loc=d3e16285-107787

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- Definition

The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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Consolidated Quarterly Statements of Operations (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2015	Oct. 04, 2015	Jul. 05, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration								$ 15,896	$ 2,489	$ (630)
Pension and post retirement net actuarial losses (gain)	$ (2,000)	$ 700	$ (700)	$ (1,200)	$ 17,700
Restructuring and other
Quarterly Financial Information [Line Items]
Building impairment and other expenses			4,200
Changes to fair value of contingent consideration			1,400
Universal Robots
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration	$ 5,400	$ 8,000		$ 1,200	5,339			15,300	5,300
Universal Robots \| Restructuring and other
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration			800
Avionics Interface Technologies, LLC
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration					$ (300)	$ (1,000)		600	(1,300)
Avionics Interface Technologies, LLC \| Restructuring and other
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration			600
ZTEC Instruments, Inc.
Quarterly Financial Information [Line Items]
Changes to fair value of contingent consideration							$ (1,600)		$ (1,600)	$ (600)
Impairment of fixed assets and expenses related to the Japan earthquake
Quarterly Financial Information [Line Items]
Property insurance recovery								5,400
Impairment of fixed assets and expenses related to the Japan earthquake \| Restructuring and other
Quarterly Financial Information [Line Items]
Property insurance recovery			5,100
Impairment of fixed assets and expenses related to the Japan earthquake \| Earthquake Related Expenses
Quarterly Financial Information [Line Items]
Building impairment and other expenses								$ 1,200
Impairment of fixed assets and expenses related to the Japan earthquake \| Earthquake Related Expenses \| Restructuring and other
Quarterly Financial Information [Line Items]
Building impairment and other expenses			$ 900