Summary of Significant Accounting Policies (Tables)

6 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Schedule Of Estimated Useful Lives For Major Classes Of Depreciable Assets

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

Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net

	September 30, 2017			March 31, 2018
Current assets (including cash of $1,907 and $3,033)	$	12,006		$	8,043
Property, plant and equipment	6,107			5,704
Goodwill	2,206			2,206
Other non-current assets	2,735			—
Total liabilities	(12,781		)	(6,509		)
	Three Months Ended March 31,
	2017			2018
Total revenues	$	4,004		$	3,577
Total operating expenses	(3,485		)	(2,622		)
Income from operations	$	519		$	955
	Six Months Ended March 31,
	2017			2018
Total revenues	$	8,075		$	9,566
Total operating expenses	(5,768		)	(7,196		)
Income from operations	$	2,307		$	2,370