Description of Business - Summary of the Fair Value of Identified Assets and Liabilities (Details) $ in Thousands, € in Millions			3 Months Ended
	Mar. 01, 2015 USD ($)	Jul. 02, 2013 USD ($)	Sep. 30, 2013 EUR (€)	Sep. 30, 2013 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Jul. 01, 2013 USD ($)
Business Acquisition [Line Items]
Total consideration recorded			€ 14	$ 18,300
Final purchase price goodwill					$ 249,120	$ 293,023
Schultz
Business Acquisition [Line Items]
Cash	$ 0
Receivables and cost and estimated earnings in excess of billings	1,086
Prepaid expenses and other current assets	19
Property, plant and equipment	162
Identified intangible assets	3,060
Other assets	0
Accounts payable, accrued expenses and billings in excess of cost and estimated earnings	(663)
Total consideration recorded	7,662
Total identifiable net assets	3,664
Final purchase price goodwill	$ 3,998
Brinderson
Business Acquisition [Line Items]
Cash								$ 3,842
Receivables and cost and estimated earnings in excess of billings								28,353
Prepaid expenses and other current assets								655
Property, plant and equipment								6,848
Identified intangible assets								60,210
Other assets								1,071
Accounts payable, accrued expenses and billings in excess of cost and estimated earnings								(30,622)
Total consideration recorded		$ 146,605
Total identifiable net assets								70,357
Final purchase price goodwill						$ 76,248	$ 77,248	$ 76,248