Retirement Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 03, 2018	Mar. 04, 2017	Feb. 27, 2016
Defined Contribution Plans
Employer match of employee contributions up to 3% of pretax annual compensation to 401 (k) defined contribution plan (as a percent)	100.00%
Percentage of participant's pretax annual compensation matched 100% by employer	3.00%
Employer match of employee contributions of additional 2% of pretax annual compensation to 401 (k) defined contribution plan (as a percent)	50.00%
Percentage of participant's pretax annual compensation matched 50% by employer	2.00%
Total expense recognized for 401(k) defined contribution plans	$ 67,949	$ 68,393	$ 65,118
Vesting period	5 years
Expense recognized for supplemental retirement defined contribution plan	$ 12,426	$ 16,921	1,377
Estimated amounts that will be amortized from accumulated other comprehensive loss into net periodic pension expense
Net actuarial loss	2,029
Prior service cost	$ 0
Asset allocations
Total (as a percent)	100.00%	100.00%
Target allocation of plan assets
Total (as a percent)	100.00%
Equity securities
Asset allocations
Total (as a percent)	53.00%	52.00%
U.S. equities
Target allocation of plan assets
Total (as a percent)	39.00%
International equity
Target allocation of plan assets
Total (as a percent)	13.00%
Fixed income securities
Asset allocations
Total (as a percent)	47.00%	48.00%
Target allocation of plan assets
Total (as a percent)	48.00%
Defined Benefit Pension Plan
Net periodic pension expense
Service cost	$ 1,212	$ 1,291	1,498
Interest cost	6,340	6,634	6,398
Expected return on plan assets	(4,525)	(4,512)	(6,330)
Amortization of unrecognized prior service cost			67
Amortization of unrecognized net loss (gain)	3,393	5,085	3,690
Net pension expense	6,420	8,498	5,323
Other changes recognized in other comprehensive loss:
Unrecognized net (gain) loss arising during period	(8,704)	(3,979)	7,369
Amortization of unrecognized prior service cost			(67)
Amortization of unrecognized net (loss) gain	(3,393)	(5,085)	(3,690)
Net amount recognized in other comprehensive loss	(12,097)	(9,064)	3,612
Net amount recognized in pension expense and other comprehensive loss	(5,677)	(566)	8,935
Change in benefit obligations:
Benefit obligation at end of prior year	164,349	156,474
Service cost	1,212	1,291	1,498
Interest cost	6,340	6,634	6,398
Distributions	(7,963)	(7,449)
Actuarial loss (gain)	(2,087)	7,399
Benefit obligation at end of year	161,851	164,349	156,474
Change in plan assets:
Fair value of plan assets at beginning of year	118,658	110,217
Employer contributions	9,023	0	0
Actual return on plan assets	11,142	15,890
Distributions (including expenses paid by the plan)	(7,963)	(7,449)
Fair value of plan assets at end of year	130,860	118,658	$ 110,217
Funded status	(30,991)	(45,691)
Amounts recognized in consolidated balance sheets consisted of:
Accrued pension liability	(30,991)	(45,691)
Net amount recognized	(30,991)	(45,691)
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial loss	(32,664)	(44,761)
Amount recognized	(32,664)	(44,761)
Estimated amounts that will be amortized from accumulated other comprehensive loss into net periodic pension expense
Accumulated benefit obligation	$ 161,851	$ 164,349
Significant actuarial assumptions used for all defined benefit plans to determine the benefit obligation
Discount rate (as a percent)	4.00%	4.00%	4.25%
Expected long-term rate of return on plan assets	6.25%	6.50%	6.50%
Weighted average assumptions used to determine net cost
Discount rate (as a percent)	4.00%	4.25%	4.00%
Expected long-term rate of return on plan assets (as a percent)	6.50%	6.50%	6.50%
Defined benefit plans estimated future employer contributions
Expected employer contribution during next fiscal year	$ 4,700