Leases - Supplemental cash flow information related to leases (Details) - USD ($) $ in Thousands	3 Months Ended
	May 30, 2020	Jun. 01, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows paid for operating leases	$ 170,370	$ 176,237
Operating cash flows paid for interest portion of finance leases	689	905
Financing cash flows paid for principal portion of finance leases	1,243	3,490
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	107,913	77,384
Finance leases	$ 0	$ 0