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Business Segment Data (Details Textual)
$ in Thousands
3 Months Ended 12 Months Ended
Feb. 29, 2020
USD ($)
Nov. 30, 2019
USD ($)
Aug. 31, 2019
USD ($)
Jun. 01, 2019
USD ($)
Mar. 02, 2019
USD ($)
Dec. 01, 2018
USD ($)
Sep. 01, 2018
USD ($)
Jun. 02, 2018
USD ($)
Feb. 29, 2020
USD ($)
operating_segment
Mar. 02, 2019
USD ($)
Mar. 03, 2018
USD ($)
Segment Reporting Information [Line Items]                      
Number of reportable segments                 4    
Number of operating segments | operating_segment                 6    
Project related charges                 $ 16,700 $ 40,900  
Revenues $ 337,100 $ 337,916 $ 357,058 $ 355,365 $ 346,255 $ 357,718 $ 362,133 $ 336,531 1,387,439 1,402,637 $ 1,326,173
Project Related Insurance Proceeds                 15,000    
Geographic Concentration Risk | Revenue Benchmark [Member]                      
Segment Reporting Information [Line Items]                      
Revenues                 $ 54,700 $ 56,300 $ 49,100
Export net sales as a percentage of consolidated net sales (percentage)                 4.00% 4.00% 4.00%