Goodwill and Other Intangible Assets, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Gross balance at beginning of period		$ 220,175us-gaap_GoodwillGross	$ 206,227us-gaap_GoodwillGross
Accumulated impairment	(16,252)	(16,252)	(14,181)
Net balance at beginning of period	203,923us-gaap_Goodwill	192,046us-gaap_Goodwill
Additions	39,565us-gaap_GoodwillAcquiredDuringPeriod	13,020us-gaap_GoodwillAcquiredDuringPeriod
Change in goodwill due to the disposal of Delamac	(2,014)	0
Goodwill impairment	0us-gaap_GoodwillImpairmentLoss	(2,071)us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Foreign currency translation	(2,893)us-gaap_GoodwillTranslationAdjustments	928us-gaap_GoodwillTranslationAdjustments
Net balance at end of period	238,581us-gaap_Goodwill	203,923us-gaap_Goodwill	192,046us-gaap_Goodwill
Fair Value Inputs, Long-term Revenue Growth Rate	1.00%
Fair Value Inputs, Discount Rate	1.00%us-gaap_FairValueInputsDiscountRate
Aerospace [Member]
Goodwill [Roll Forward]
Gross balance at beginning of period		114,538	110,072
Accumulated impairment	(16,252)	(16,252)	(14,181)
Net balance at beginning of period	98,286	95,891
Additions	1,532	3,527
Change in goodwill due to the disposal of Delamac	0	0
Goodwill impairment	0	(2,071)
Foreign currency translation	(2,849)	939
Net balance at end of period	96,969	98,286
Distribution [Member]
Goodwill [Roll Forward]
Gross balance at beginning of period		105,637	96,155
Accumulated impairment	0	0	0
Net balance at beginning of period	105,637	96,155
Additions	38,033	9,493
Change in goodwill due to the disposal of Delamac	(2,014)	0
Goodwill impairment	0	0
Foreign currency translation	(44)	(11)
Net balance at end of period	141,612	105,637
Aerosystems [Member]
Goodwill [Roll Forward]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	16.00%
VT composites [Member]
Goodwill [Roll Forward]
Goodwill impairment		(2,100)
Net balance at end of period		$ 16,800
Goodwill impairment charge as a percent of reporting units total goodwill		11.00%

Goodwill impairment charge as a percent of reporting units total goodwill

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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.

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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 before 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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Amount of increase (decrease) from foreign currency translation adjustments 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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Percentage of fair value of reporting unit in excess of carrying amount.

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