Acquisition - Intangible Assets Acquired (Details) - Coleman Aerospace $ in Millions	Feb. 24, 2017 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 4.8
Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 0.5
Weighted average useful life	8 years
Customer related
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 3.4
Weighted average useful life	7 years
Acquired technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 0.9
Weighted average useful life	10 years