Retirement Plans - Fair Value (Details) - Recurring - USD ($) $ in Thousands	Mar. 03, 2018	Mar. 04, 2017
Retirement Plans
Total assets at fair value	$ 130,860	$ 118,658
International equity
Retirement Plans
Total assets at fair value	18,043	15,348
Large Cap
Retirement Plans
Total assets at fair value	35,491	32,413
Small-Mid Cap
Retirement Plans
Total assets at fair value	15,510	14,083
Long Term Credit Bond Index
Retirement Plans
Total assets at fair value	46,222	47,694
Long Term US Government Bonds
Retirement Plans
Total assets at fair value	8,070
20+ Year Treasury STRIPS
Retirement Plans
Total assets at fair value	1,168	7,563
Intermediate Fixed Income
Retirement Plans
Total assets at fair value	5,617	639
Short Term Investments
Retirement Plans
Total assets at fair value	$ 739	$ 918