Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Annual Scheduled Principal Payments of Debt (Detail)

v3.10.0.1
Long-Term Debt - Annual Scheduled Principal Payments of Debt (Detail)
$ in Millions
Jun. 30, 2018
USD ($)
Debt Disclosure [Abstract]  
2018 $ 53.4
2019 775.0
2020 97.9
2021 97.5
2022 97.5
Thereafter 1,289.4
Total $ 2,410.7