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Commitments and Contingencies (Details)
$ in Millions
Feb. 28, 2018
USD ($)
Future payments under noncancelable operating leases  
2019 $ 53.6
2020 53.7
2021 50.3
2022 44.0
2023 41.3
Thereafter 316.3
Future payments under noncancelable operating leases, Total $ 559.2