Leases - Supplemental B/S Information (Details) $ in Thousands	12 Months Ended
	Feb. 29, 2020 USD ($) store	Mar. 02, 2019 USD ($)
Operating leases:
Operating lease right-of-use asset	$ 2,903,256
Short-term operating lease liabilities	490,161
Long-term operating lease liabilities	2,710,347
Total operating lease liabilities	3,200,508
Finance leases:
Property, plant and equipment, net	1,215,838	$ 1,308,514
Current maturities of long-term debt and lease financing obligations	8,840
Lease financing obligations, less current maturities, ASC842	19,326
Total finance lease liabilities, ASC842	$ 28,166
Weighted average remaining lease term
Operating leases (in years)	7 years 9 months 18 days
Finance leases (in years)	8 years 10 months 24 days
Weighted average discount rate
Operating leases (as a percent)	6.10%
Finance leases (as a percent)	10.20%
Number of former stores with lease guarantee obligations | store	1,393
Finance Leased Assets [Member]
Finance leases:
Property, plant and equipment, net	$ 19,904