Inventories (Tables)

6 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory

The major classes of Inventories, net are as follows:

	March 31, 2021		September 30, 2020
Raw materials and supplies	$	82,065	$	78,319
Work in progress	19,497		15,654
Finished goods and products held for resale	61,918		56,435
Costs of unbilled projects	4,143		3,438
Reserves for excess and obsolete	(10,836)		(11,467)
Inventories, net	$	156,787	$	142,379