Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill - Intangible Assets (Details)

v3.21.1
Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2021
Jun. 30, 2020
Sep. 30, 2020
Intangible Assets [Line Items]      
Cost $ 999.5   $ 1,001.1
Accumulated Amortization (287.4)   (267.2)
Total 1,226.5 $ 1,227.9  
Trade names      
Intangible Assets [Line Items]      
Indefinite-lived assets: 227.0   226.8
Trade names      
Intangible Assets [Line Items]      
Cost 0.2   0.2
Accumulated Amortization (0.2)   (0.2)
Customer relationships      
Intangible Assets [Line Items]      
Cost 796.2   787.6
Accumulated Amortization (173.4)   (151.8)
Technology, including patents      
Intangible Assets [Line Items]      
Cost 137.7   137.6
Accumulated Amortization (57.0)   (51.0)
Software      
Intangible Assets [Line Items]      
Cost 65.4   65.6
Accumulated Amortization (56.8)   (54.1)
Backlog      
Intangible Assets [Line Items]      
Cost 0.0   10.0
Accumulated Amortization 0.0   (10.0)
Other      
Intangible Assets [Line Items]      
Cost 0.0   0.1
Accumulated Amortization $ 0.0   $ (0.1)