Acquisition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 01, 2015	Jul. 02, 2013
Business Acquisition [Abstract]
Payments to Acquire Businesses, Net of Cash Acquired	$ 66.4	$ 0.0	$ 59.7
Emplal [Member]
Business Acquisition [Abstract]
Business Combination, Consideration Transferred	67.0
Goodwill, Acquired During Period	44.9
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets				$ 145.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities				78.8
Business Combination, Indemnification Assets, Amount as of Acquisition Date				$ 16.9
NCS [Member]
Business Acquisition [Abstract]
Business Combination, Consideration Transferred			75.6
Payments to Acquire Businesses, Net of Cash Acquired	$ 4.3	$ 6.6	65.3
Goodwill, Acquired During Period			$ 47.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets					$ 111.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities					$ 35.4