Acquisitions (Details 2) - Altek - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	May 29, 2018
Business Acquisition [Line Items]
Total identifiable intangible assets		$ 52.5
Customer related
Business Acquisition [Line Items]
Amortization Period	14 years 73 days
Total identifiable intangible assets		11.5
Technology related
Business Acquisition [Line Items]
Amortization Period	10 years 109 days
Total identifiable intangible assets		36.5
Trade names
Business Acquisition [Line Items]
Amortization Period	15 years
Total identifiable intangible assets		$ 4.5