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Acquisitions Acquisition (Details 1) - USD ($)
$ in Thousands
Feb. 29, 2020
Mar. 02, 2019
Mar. 03, 2018
Jun. 12, 2017
Business Acquisition        
Goodwill $ 185,516 $ 185,832 $ 180,956  
EFCO Corporation        
Business Acquisition        
Net working capital       $ 1,422
Property, plant and equipment       44,641
Goodwill       90,429
Other intangible assets       71,500
Less: Long-term liabilities acquired, net       17,643
Net assets acquired       $ 190,349