Commitments and Contingencies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Commitments And Contingencies [Line Items]
Period over which product liability self-insurance retention levels have fluctuated (in years)	10 years
Product liability reserves	$ 12,800,000	$ 16,300,000
Warranty claims reserves	48,600,000	$ 38,500,000
Gain on settlement	24,400,000
Other Income (Expense)
Commitments And Contingencies [Line Items]
Gain on settlement	15,500,000
Engineering, Selling and Administrative Expenses
Commitments And Contingencies [Line Items]
Gain on settlement	8,900,000
Maximum
Commitments And Contingencies [Line Items]
Product liability self-insurance maximum retention level for new occurrence	$ 2,000,000.0