Retirement Plans - Fair Value (Details) - Recurring - USD ($) $ in Thousands	Mar. 04, 2023	Feb. 26, 2022
Retirement Plans
Total assets at fair value	$ 120,764	$ 149,525
International equity
Retirement Plans
Total assets at fair value	13,901	17,783
Large Cap
Retirement Plans
Total assets at fair value	18,556	23,027
Small-Mid Cap
Retirement Plans
Total assets at fair value	3,309	4,213
Aon High Yield Plus Bond
Retirement Plans
Total assets at fair value	72	75
Aon Multi-Asset Credit
Retirement Plans
Total assets at fair value	4,775	7,386
Long Term Credit Bond Index
Retirement Plans
Total assets at fair value	41,360	47,976
Long Term US Government Bonds
Retirement Plans
Total assets at fair value	1,588	19,763
20+ Year Treasury STRIPS
Retirement Plans
Total assets at fair value	12,821	483
Intermediate Fixed Income
Retirement Plans
Total assets at fair value	9,781	8,554
AGT High Yield Bond
Retirement Plans
Total assets at fair value
Aon Global Real Estate
Retirement Plans
Total assets at fair value	11	13
Aon Core Real Estate Fund
Retirement Plans
Total assets at fair value	13,479	18,720
Short Term Investments
Retirement Plans
Total assets at fair value	1,111	1,532
Level 1
Retirement Plans
Total assets at fair value
Level 1 | International equity
Retirement Plans
Total assets at fair value
Level 1 | Large Cap
Retirement Plans
Total assets at fair value
Level 1 | Small-Mid Cap
Retirement Plans
Total assets at fair value
Level 1 | Fixed Income
Retirement Plans
Total assets at fair value
Level 1 | Aon High Yield Plus Bond
Retirement Plans
Total assets at fair value
Level 1 | Aon Multi-Asset Credit
Retirement Plans
Total assets at fair value
Level 1 | Long Term Credit Bond Index
Retirement Plans
Total assets at fair value
Level 1 | Long Term US Government Bonds
Retirement Plans
Total assets at fair value
Level 1 | 20+ Year Treasury STRIPS
Retirement Plans
Total assets at fair value
Level 1 | Intermediate Fixed Income
Retirement Plans
Total assets at fair value
Level 1 | AGT High Yield Bond
Retirement Plans
Total assets at fair value
Level 1 | Aon Global Real Estate
Retirement Plans
Total assets at fair value
Level 1 | Aon Core Real Estate Fund
Retirement Plans
Total assets at fair value
Level 1 | Short Term Investments
Retirement Plans
Total assets at fair value
Level 2
Retirement Plans
Total assets at fair value	1,111	1,532
Level 2 | International equity
Retirement Plans
Total assets at fair value
Level 2 | Large Cap
Retirement Plans
Total assets at fair value
Level 2 | Small-Mid Cap
Retirement Plans
Total assets at fair value
Level 2 | Fixed Income
Retirement Plans
Total assets at fair value
Level 2 | Aon High Yield Plus Bond
Retirement Plans
Total assets at fair value
Level 2 | Aon Multi-Asset Credit
Retirement Plans
Total assets at fair value
Level 2 | Long Term Credit Bond Index
Retirement Plans
Total assets at fair value
Level 2 | Long Term US Government Bonds
Retirement Plans
Total assets at fair value
Level 2 | 20+ Year Treasury STRIPS
Retirement Plans
Total assets at fair value
Level 2 | Intermediate Fixed Income
Retirement Plans
Total assets at fair value
Level 2 | AGT High Yield Bond
Retirement Plans
Total assets at fair value
Level 2 | Aon Global Real Estate
Retirement Plans
Total assets at fair value
Level 2 | Aon Core Real Estate Fund
Retirement Plans
Total assets at fair value
Level 2 | Short Term Investments
Retirement Plans
Total assets at fair value	1,111	1,532
Level 3
Retirement Plans
Total assets at fair value
Level 3 | International equity
Retirement Plans
Total assets at fair value
Level 3 | Large Cap
Retirement Plans
Total assets at fair value
Level 3 | Small-Mid Cap
Retirement Plans
Total assets at fair value
Level 3 | Fixed Income
Retirement Plans
Total assets at fair value
Level 3 | Aon High Yield Plus Bond
Retirement Plans
Total assets at fair value
Level 3 | Aon Multi-Asset Credit
Retirement Plans
Total assets at fair value
Level 3 | Long Term Credit Bond Index
Retirement Plans
Total assets at fair value
Level 3 | Long Term US Government Bonds
Retirement Plans
Total assets at fair value
Level 3 | 20+ Year Treasury STRIPS
Retirement Plans
Total assets at fair value
Level 3 | Intermediate Fixed Income
Retirement Plans
Total assets at fair value
Level 3 | AGT High Yield Bond
Retirement Plans
Total assets at fair value
Level 3 | Aon Global Real Estate
Retirement Plans
Total assets at fair value
Level 3 | Aon Core Real Estate Fund
Retirement Plans
Total assets at fair value
Level 3 | Short Term Investments
Retirement Plans
Total assets at fair value