Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Nov. 30, 2020	Feb. 29, 2020
Leases [Abstract]
Operating lease assets	$ 439,074	$ 449,094
Finance Lease, Right-of-Use Asset	97,281	75,320
Total lease assets	536,355	524,414
Current portion of operating lease liabilities	30,726	30,980
Finance Lease, Liability, Current	9,520	5,066
Operating lease liabilities, excluding current portion	431,068	440,671
Finance Lease, Liability, Noncurrent	102,154	79,327
Total lease liabilities	573,468	556,044
Finance Lease Accumulated Depreciation	$ 14,600	$ 9,100