XML 45 R51.htm IDEA: XBRL DOCUMENT v3.19.3
Goodwill and Other Intangible Assets - Schedule of Estimated Annual Amortization Expense Related to Other Intangible Assets (Detail)
$ in Millions
Sep. 30, 2019
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
2019 $ 14.6
2020 13.0
2021 0.9
2022 0.9
2023 0.9
2024 and thereafter 6.9
Total $ 37.2