Other Commitments and Contingencies - Various Commitments for Material Contracts (Detail) $ in Thousands	Feb. 28, 2018 USD ($)
Schedule Of Commitments And Contingencies [Line Items]
2019	$ 30,350
2020	15,032
2021	6,695
2022	6,358
2023	5,540
Thereafter	15,404
Total	79,379
Operating Lease
Schedule Of Commitments And Contingencies [Line Items]
2019	5,991
2020	5,898
2021	5,715
2022	5,500
2023	5,157
Thereafter	15,404
Total	43,665
Employment Agreement
Schedule Of Commitments And Contingencies [Line Items]
2019	13,283
2020	5,365
2021	403
2022	373
2023	383
Thereafter	0
Total	19,807
Other Contracts
Schedule Of Commitments And Contingencies [Line Items]
2019	11,076
2020	3,769
2021	577
2022	485
2023	0
Thereafter	0
Total	$ 15,907