Contingencies - Additional Information (Details)	1 Months Ended	3 Months Ended				9 Months Ended		12 Months Ended
	Aug. 31, 2017 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($) LegalMatter	Sep. 30, 2018 USD ($) LegalMatter Vendor	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) LegalMatter	Dec. 31, 2016 USD ($) LegalMatter
Loss Contingencies [Line Items]
Loss contingency, years of activity						5 years
Number of insurance carriers | Vendor						20
Insurance receivables					$ 61,800,000	$ 61,800,000		$ 134,700,000	$ 159,900,000
Insurance receivables, current					12,500,000	12,500,000		11,600,000
Insurance receivables, noncurrent					49,300,000	49,300,000		123,100,000
Notes receivable from insurance companies					64,200,000	64,200,000		76,900,000	$ 67,300,000
Notes receivable from insurance companies, current					3,525,000	3,525,000		17,333,000
Notes Receivables from Insurance Companies, Noncurrent					60,700,000	60,700,000		59,600,000
Product warranty expense						7,900,000	$ 9,800,000
Single Incident
Loss Contingencies [Line Items]
Product liability accrual					$ 4,000,000	4,000,000		$ 5,400,000
Product liability expense						$ 1,300,000	300,000
Lawsuit
Loss Contingencies [Line Items]
Number of lawsuits | LegalMatter					1,517	1,517		1,420	1,794
Damages from Product Defects
Loss Contingencies [Line Items]
Number of lawsuits | LegalMatter					2,392	2,392		2,242	3,023
Unasserted Claim
Loss Contingencies [Line Items]
Product liability accrual					$ 103,900,000	$ 103,900,000		$ 111,100,000
Cumulative Trauma
Loss Contingencies [Line Items]
Product liability accrual					172,300,000	172,300,000		181,100,000
Increase (Decrease) in Self Insurance Reserve					16,900,000
Product liability expense						31,900,000	101,400,000
Cumulative Trauma, Reported Claims
Loss Contingencies [Line Items]
Product liability accrual					68,400,000	68,400,000		70,000,000
Claims Settled, But Not Yet Paid
Loss Contingencies [Line Items]
Product liability accrual					36,000,000	36,000,000		54,500,000
Claims Asserted But Not Yet Resolved
Loss Contingencies [Line Items]
Product liability accrual					32,400,000	32,400,000		15,500,000
Uninsured Cumulative Trauma
Loss Contingencies [Line Items]
Product liability expense						25,500,000	$ 33,000,000
Other Current Liabilities | Cumulative Trauma
Loss Contingencies [Line Items]
Product liability accrual					$ 68,400,000	68,400,000		48,600,000
Other Noncurrent Liabilities | Cumulative Trauma
Loss Contingencies [Line Items]
Product liability accrual								21,400,000
Settled Litigation
Loss Contingencies [Line Items]
Payments to resolve cumulative trauma claims						$ 21,400,000		$ 25,200,000
Damages awarded	$ 75,200,000
Subsequent Event | Settled Litigation | Scenario, Forecast
Loss Contingencies [Line Items]
Loss Contingency Accrual, Payments		$ 7,100,000	$ 7,100,000	$ 7,100,000
Loss Contingency Accrual, Number of Periodic Payments		4