Property, Plant, and Equipment (Tables)

6 Months Ended

Mar. 31, 2018

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Estimated useful lives for major classes of depreciable assets are as follows:

Asset Class	Estimated Useful Life
Machinery and equipment	3 to 20 years
Buildings and improvements	10 to 40 years

Property, plant, and equipment consists of the following:

	September 30, 2017			March 31, 2018
Machinery and equipment	$	338,056		$	356,277
Land and buildings	84,282			85,786
Construction in process	24,788			35,446
	447,126			477,509
Less: accumulated depreciation	(167,083		)	(191,822		)
	$	280,043		$	285,687