Supplementary Cash Flow Data (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 02, 2017	Nov. 26, 2016
Supplementary Cash Flow Data
Cash paid for interest (net of capitalized amounts of $263 and $99, respectively)	$ 285,022	$ 273,761
Capitalized amount of interest	263	99
Cash payments of income taxes, net of refunds	8,353	6,506
Equipment financed under capital leases	10,295	3,881
Equipment received for noncash consideration	2,044	746
Reduction in lease financing obligation	4,740
Gross borrowings from revolver	2,203,000	2,774,000
Gross repayments to revolver	$ 2,467,080	$ 2,494,000