Subsidiary Guarantors and Senior Notes - Balance Sheets (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 |
Current assets: | | | | | | | | |
Cash and cash equivalents | $ 122.9 | | | $ 130.7 | | | | |
Restricted cash | 0.2 | | | 0 | | | | |
Accounts receivable — net | 161.8 | | | 183.6 | | | | |
Intercompany trade receivable | | | | 0 | | | | |
Inventories — net | 192.4 | | | 186.4 | | | | |
Prepaids and other current assets | 67.9 | | | 28.2 | | | | |
Total current assets | 545.2 | | | 528.9 | | | | |
Property, plant and equipment — net | 126.7 | | | 127.5 | | | | |
Operating lease right-of-use assets | 42.5 | | | 39.9 | | | | |
Goodwill | 936.8 | | | 933.1 | | | | |
Other intangible assets — net | 471.8 | | | 507.7 | | | | |
Intercompany long-term notes receivable | 0 | | | 0 | | | | |
Due from affiliates | 0 | | | 0 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Other non-current assets | 27.8 | | | 28.2 | | | | |
Total assets | 2,150.8 | | | 2,165.3 | | | | |
Current liabilities: | | | | | | | | |
Trade accounts payable | 102.4 | | | 104.4 | | | | |
Accrued expenses and other liabilities | 151.5 | | | 192.4 | | | | |
Current portion of long-term debt and finance leases | 3.4 | | | 1.2 | | | | |
Product warranties | 31.3 | | | 33.3 | | | | |
Intercompany trade payable | | | | 0 | | | | |
Total current liabilities | 288.6 | | | 331.3 | | | | |
Total long-term debt and finance leases | 1,444.2 | | | 1,403.1 | | | | |
Deferred income taxes | 89.7 | | | 81.9 | | | | |
Pension and postretirement health liabilities | 27.2 | | | 32.8 | | | | |
Intercompany long-term notes payable | 0 | | | 0 | | | | |
Due to affiliates | 0 | | | 0 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Operating lease liabilities | 32.4 | | | 29.1 | | | | |
Other long-term liabilities | 35.7 | | | 34.1 | | | | |
Total non-current liabilities | 1,629.2 | | | 1,581 | | | | |
Total equity | 233 | $ 215.1 | $ 213 | 253 | $ 230.7 | $ 216.7 | $ 185.3 | $ 186.4 |
Total liabilities and equity | 2,150.8 | | | 2,165.3 | | | | |
Reportable Legal Entities | Parent | | | | | | | | |
Current assets: | | | | | | | | |
Cash and cash equivalents | 17.8 | | | 10.7 | | | | |
Restricted cash | 0 | | | | | | | |
Accounts receivable — net | 1.8 | | | 0.1 | | | | |
Intercompany trade receivable | | | | 0 | | | | |
Inventories — net | 0 | | | 0 | | | | |
Prepaids and other current assets | 45.4 | | | 6.7 | | | | |
Total current assets | 65 | | | 17.5 | | | | |
Property, plant and equipment — net | 14.1 | | | 17 | | | | |
Operating lease right-of-use assets | 2.3 | | | 0 | | | | |
Goodwill | 0 | | | 0 | | | | |
Other intangible assets — net | 0.2 | | | 0 | | | | |
Intercompany long-term notes receivable | 0 | | | 0 | | | | |
Due from affiliates | 0 | | | 0 | | | | |
Investment in subsidiaries | 4,427.4 | | | 4,400.9 | | | | |
Other non-current assets | 6.4 | | | 7.6 | | | | |
Total assets | 4,515.4 | | | 4,443 | | | | |
Current liabilities: | | | | | | | | |
Trade accounts payable | 0.2 | | | 0.2 | | | | |
Accrued expenses and other liabilities | 23 | | | 35.3 | | | | |
Current portion of long-term debt and finance leases | 2.5 | | | 0 | | | | |
Product warranties | 0 | | | 0 | | | | |
Intercompany trade payable | | | | 5.9 | | | | |
Total current liabilities | 25.7 | | | 41.4 | | | | |
Total long-term debt and finance leases | 1,430.4 | | | 1,370 | | | | |
Deferred income taxes | 51.2 | | | 45 | | | | |
Pension and postretirement health liabilities | 14.7 | | | 15.5 | | | | |
Intercompany long-term notes payable | 15.7 | | | 15.7 | | | | |
Due to affiliates | 2,730.5 | | | 2,695.1 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Operating lease liabilities | 2.1 | | | 0 | | | | |
Other long-term liabilities | 12.2 | | | 7.4 | | | | |
Total non-current liabilities | 4,256.8 | | | 4,148.7 | | | | |
Total equity | 232.9 | | | 252.9 | | | | |
Total liabilities and equity | 4,515.4 | | | 4,443 | | | | |
Reportable Legal Entities | Guarantor Subsidiaries | | | | | | | | |
Current assets: | | | | | | | | |
Cash and cash equivalents | 0 | | | 0.7 | | | | |
Restricted cash | 0 | | | | | | | |
Accounts receivable — net | 72.4 | | | 82.5 | | | | |
Intercompany trade receivable | | | | 5.9 | | | | |
Inventories — net | 97.8 | | | 100.2 | | | | |
Prepaids and other current assets | 1.4 | | | 6.8 | | | | |
Total current assets | 171.6 | | | 196.1 | | | | |
Property, plant and equipment — net | 71.2 | | | 66.4 | | | | |
Operating lease right-of-use assets | 4.4 | | | 3.6 | | | | |
Goodwill | 832.4 | | | 832.4 | | | | |
Other intangible assets — net | 322.5 | | | 344.2 | | | | |
Intercompany long-term notes receivable | 10.1 | | | 10.1 | | | | |
Due from affiliates | 3,478.2 | | | 3,437.2 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Other non-current assets | 4.6 | | | 4.2 | | | | |
Total assets | 4,895 | | | 4,894.2 | | | | |
Current liabilities: | | | | | | | | |
Trade accounts payable | 55.8 | | | 49 | | | | |
Accrued expenses and other liabilities | 67.9 | | | 87.7 | | | | |
Current portion of long-term debt and finance leases | 0.3 | | | 0.7 | | | | |
Product warranties | 20.3 | | | 21.9 | | | | |
Intercompany trade payable | | | | 0 | | | | |
Total current liabilities | 144.3 | | | 159.3 | | | | |
Total long-term debt and finance leases | 0.4 | | | 0.6 | | | | |
Deferred income taxes | 0 | | | 0 | | | | |
Pension and postretirement health liabilities | 9.5 | | | 10.2 | | | | |
Intercompany long-term notes payable | 0 | | | 0 | | | | |
Due to affiliates | 0 | | | 0 | | | | |
Investment in subsidiaries | 292.7 | | | 300.9 | | | | |
Operating lease liabilities | 2.6 | | | 1.8 | | | | |
Other long-term liabilities | 18.1 | | | 20.5 | | | | |
Total non-current liabilities | 323.3 | | | 334 | | | | |
Total equity | 4,427.4 | | | 4,400.9 | | | | |
Total liabilities and equity | 4,895 | | | 4,894.2 | | | | |
Reportable Legal Entities | Non- Guarantor Subsidiaries | | | | | | | | |
Current assets: | | | | | | | | |
Cash and cash equivalents | 106 | | | 119.3 | | | | |
Restricted cash | 0.2 | | | | | | | |
Accounts receivable — net | 87.6 | | | 101 | | | | |
Intercompany trade receivable | | | | 0 | | | | |
Inventories — net | 94.6 | | | 86.2 | | | | |
Prepaids and other current assets | 21.1 | | | 14.7 | | | | |
Total current assets | 309.5 | | | 321.2 | | | | |
Property, plant and equipment — net | 41.4 | | | 44.1 | | | | |
Operating lease right-of-use assets | 35.8 | | | 36.3 | | | | |
Goodwill | 104.4 | | | 100.7 | | | | |
Other intangible assets — net | 149.1 | | | 163.5 | | | | |
Intercompany long-term notes receivable | 9.9 | | | 9.9 | | | | |
Due from affiliates | 0 | | | 0 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Other non-current assets | 16.8 | | | 16.4 | | | | |
Total assets | 666.9 | | | 692.1 | | | | |
Current liabilities: | | | | | | | | |
Trade accounts payable | 47.3 | | | 55.2 | | | | |
Accrued expenses and other liabilities | 60.6 | | | 69.4 | | | | |
Current portion of long-term debt and finance leases | 0.6 | | | 0.5 | | | | |
Product warranties | 11 | | | 11.4 | | | | |
Intercompany trade payable | | | | 0 | | | | |
Total current liabilities | 119.5 | | | 136.5 | | | | |
Total long-term debt and finance leases | 13.4 | | | 32.5 | | | | |
Deferred income taxes | 38.5 | | | 36.9 | | | | |
Pension and postretirement health liabilities | 3 | | | 7.1 | | | | |
Intercompany long-term notes payable | 4.3 | | | 4.3 | | | | |
Due to affiliates | 747.6 | | | 742.1 | | | | |
Investment in subsidiaries | 0 | | | 0 | | | | |
Operating lease liabilities | 27.7 | | | 27.3 | | | | |
Other long-term liabilities | 5.6 | | | 6.3 | | | | |
Total non-current liabilities | 840.1 | | | 856.5 | | | | |
Total equity | (292.7) | | | (300.9) | | | | |
Total liabilities and equity | 666.9 | | | 692.1 | | | | |
Consolidating Adjustments | | | | | | | | |
Current assets: | | | | | | | | |
Cash and cash equivalents | (0.9) | | | 0 | | | | |
Restricted cash | 0 | | | | | | | |
Accounts receivable — net | 0 | | | 0 | | | | |
Intercompany trade receivable | | | | (5.9) | | | | |
Inventories — net | 0 | | | 0 | | | | |
Prepaids and other current assets | 0 | | | 0 | | | | |
Total current assets | (0.9) | | | (5.9) | | | | |
Property, plant and equipment — net | 0 | | | 0 | | | | |
Operating lease right-of-use assets | 0 | | | 0 | | | | |
Goodwill | 0 | | | 0 | | | | |
Other intangible assets — net | 0 | | | 0 | | | | |
Intercompany long-term notes receivable | (20) | | | (20) | | | | |
Due from affiliates | (3,478.2) | | | (3,437.2) | | | | |
Investment in subsidiaries | (4,427.4) | | | (4,400.9) | | | | |
Other non-current assets | 0 | | | 0 | | | | |
Total assets | (7,926.5) | | | (7,864) | | | | |
Current liabilities: | | | | | | | | |
Trade accounts payable | (0.9) | | | 0 | | | | |
Accrued expenses and other liabilities | 0 | | | 0 | | | | |
Current portion of long-term debt and finance leases | 0 | | | 0 | | | | |
Product warranties | 0 | | | 0 | | | | |
Intercompany trade payable | | | | (5.9) | | | | |
Total current liabilities | (0.9) | | | (5.9) | | | | |
Total long-term debt and finance leases | 0 | | | 0 | | | | |
Deferred income taxes | 0 | | | 0 | | | | |
Pension and postretirement health liabilities | 0 | | | 0 | | | | |
Intercompany long-term notes payable | (20) | | | (20) | | | | |
Due to affiliates | (3,478.1) | | | (3,437.2) | | | | |
Investment in subsidiaries | (292.7) | | | (300.9) | | | | |
Operating lease liabilities | 0 | | | 0 | | | | |
Other long-term liabilities | (0.2) | | | (0.1) | | | | |
Total non-current liabilities | (3,791) | | | (3,758.2) | | | | |
Total equity | (4,134.6) | | | (4,099.9) | | | | |
Total liabilities and equity | $ (7,926.5) | | | $ (7,864) | | | | |