Inventories (Tables)

9 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

The major classes of Inventories, net are as follows:

	September 30, 2017			June 30, 2018
Raw materials and supplies	$	64,113		$	75,000
Work in progress	16,425			22,762
Finished goods and products held for resale	44,402			51,400
Costs of unbilled projects	5,706			2,391
Reserves for excess and obsolete	(10,599		)	(11,086		)
Inventories, net	$	120,047		$	140,467