Commitments and Contingencies - Schedule of Product Warranty (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes in accrued product warranty cost
Balance at the beginning of the period	$ 6.1	$ 11.3	$ 4.5
Warranty expense	5.1	3.5	10.3
Deductions and other	(5.7)	(8.7)	(3.5)
Balance at the end of the period	$ 5.5	$ 6.1	$ 11.3