Acquisitions and Divestitures - Divestitures (Details) - USD ($) $ in Thousands						3 Months Ended								7 Months Ended		8 Months Ended	9 Months Ended	12 Months Ended
	Dec. 30, 2016	Oct. 10, 2016	Sep. 09, 2016	Jul. 29, 2016	Jul. 31, 2015	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Jul. 29, 2016	Jul. 31, 2015	Sep. 09, 2016	Oct. 10, 2016	Dec. 31, 2016	Dec. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold																		$ 39,064		$ 27,677	$ 0
Income tax expense (benefit)																		97,403		109,538	113,054
Revenues						$ 530,419	$ 530,356	$ 549,696	$ 502,572	$ 499,798	$ 503,791	$ 514,881	$ 502,198					2,113,043		$ 2,020,668	$ 2,147,767
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Hydra-Stop
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold				$ 15,000
Pre-tax gain (loss) on the sale				5,800
Additional proceeds from disposition of business				$ 2,000
Income tax expense (benefit)																		2,800
Revenues														$ 7,500
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Melles Griot KK
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold			$ 17,500
Pre-tax gain (loss) on the sale			$ (7,900)
Income tax expense (benefit)																		(3,400)
Revenues																$ 13,100
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | IETG and 40Seven
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold		$ 2,700
Pre-tax gain (loss) on the sale		$ (4,200)
Revenues																	$ 8,300
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | CVI Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold	$ 3,800
Pre-tax gain (loss) on the sale	$ (16,000)
Income tax expense (benefit)																		(9,100)
Revenues																			$ 11,700
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Ismatec Product Line
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash sold					$ 27,700
Pre-tax gain (loss) on the sale					$ 18,100
Income tax expense (benefit)																		$ 4,800
Revenues															$ 5,300