Commitments and Contingencies - Schedule of Product Warranty (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Changes in accrued product warranty cost
Balance at the beginning of the period	$ 3.0	$ 4.5	$ 5.5
Warranty expense	0.4		1.3
Deductions and other	(0.4)	(1.5)	(2.3)
Balance at the end of the period	3.0	3.0	4.5
Warranty expense	0.4		1.3
Deductions and other	(0.4)	(1.5)	(2.3)
Balance at the end of the period	$ 3.0	$ 3.0	$ 4.5