Contingencies (Details) $ in Millions	Mar. 31, 2018 USD ($)
Loss contingencies [Line Items]
Loss contingencies, estimate of possible loss	$ 100.0
Damages from product defects
Loss contingencies [Line Items]
Loss contingencies, estimate of possible loss	227.7
Indemnification agreement
Loss contingencies [Line Items]
Loss contingencies, estimate of possible loss	$ 160.5