XML 73 R61.htm IDEA: XBRL DOCUMENT v3.8.0.1
Intangible Assets - Estimated Aggregate Amortization Expense (Detail)
$ in Millions
Mar. 31, 2018
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2018 (remaining nine months) $ 198.2
2019 251.4
2020 234.6
2021 211.0
2022 187.4
Thereafter 557.0
Total $ 1,639.6