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Reporting Unit, Increase (Decrease) in Fair Value, Percent

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Reporting Unit, Increase (Decrease) in Fair Value, Value

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Percentage of fair value of reporting unit in excess of carrying amount.

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Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 01, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Accounting Policies [Abstract]
Net foreign exchange transaction gains (loss)		$ (800)	$ (300)	$ (1,659)	$ (1,351)
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible asset impairment		41,032	0	41,032	0
Goodwill impairment		45,390	$ 0	45,390	$ 0
Goodwill		259,791		$ 259,791		$ 298,619
Trademarks
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible asset impairment		3,400
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible asset impairment		20,800
Patents
Finite-Lived Intangible Assets [Line Items]
Definite-lived intangible asset impairment		$ 16,800
Fyfe
Finite-Lived Intangible Assets [Line Items]
Percentage of fair value in excess of carrying value		45.00%		45.00%
Decrease in fair value, value		$ 105,200
Decrease in fair value, percentage		65.30%
Fair Value Inputs, Discount Rate	16.00%	17.00%
Long-term revenue growth rate (percentage)	3.50%	2.50%
Annual growth rate assumption (percentage)	4.00%	10.80%
Goodwill impairment		$ 45,400
Goodwill		$ 9,600		$ 9,600