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Inventories
 9 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
The major classes of Inventories, net are as follows:
June 30,
2021		September 30,
2020
Raw materials and supplies$85,671 $78,319 
Work in progress19,489 15,654 
Finished goods and products held for resale63,493 56,435 
Costs of unbilled projects3,789 3,438 
Reserves for excess and obsolete
(11,214)(11,467)
Inventories, net
$161,228 $142,379