Leases (Details) $ in Thousands	12 Months Ended
	Feb. 29, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Operating lease cost	$ 653,803
Financing lease cost:
Amortization of right-of-use asset	5,722
Interest on long-term finance lease liabilities	3,276
Total finance lease costs	8,998
Short-term lease costs	1,160
Variable lease costs	168,849
Less: sublease income	(20,930)
Net lease cost	$ 811,880
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Initial terms of noncancellable capital leases	5 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Initial terms of noncancellable capital leases	22 years
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Initial terms of noncancellable operating leases	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Initial terms of noncancellable operating leases	10 years