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Inventories
 3 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
The major classes of Inventories, net are as follows:
December 31,
2020		September 30,
2020
Raw materials and supplies$81,917 $78,319 
Work in progress16,956 15,654 
Finished goods and products held for resale63,339 56,435 
Costs of unbilled projects3,860 3,438 
Reserves for excess and obsolete
(11,046)(11,467)
Inventories, net
$155,026 $142,379