Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Details)

v3.21.2
Acquisitions (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 07, 2020
May 31, 2021
May 31, 2020
May 31, 2021
May 31, 2020
Business Acquisition [Line Items]          
Cash paid for business acquisitions, net of cash acquired       $ 0 $ (33,434,000)
Net Sales   $ 143,149,000 $ 101,879,000 383,233,000 381,939,000
HTL Group [Member]          
Business Acquisition [Line Items]          
Business Acquisition, Date of Acquisition Agreement Jan. 07, 2020        
Cash paid for business acquisitions, net of cash acquired $ 33,300,000        
Goodwill, Acquired During Period 11,300,000        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 16,100,000        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 6,700,000        
Net Sales   $ 3,700,000 $ 1,900,000 $ 9,200,000 $ 3,900,000
Tradenames | HTL Group [Member]          
Business Acquisition [Line Items]          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 3,300,000        
Customer relationships | HTL Group [Member]          
Business Acquisition [Line Items]          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 12,100,000        
Patents | HTL Group [Member]          
Business Acquisition [Line Items]          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 700,000