Property, Plant and Equipment (Tables)

12 Months Ended

Sep. 30, 2012

Property, Plant and Equipment

Summary of the major classes of property, plant and equipment

	September 30,
	2011			2012
Land and land improvements	$	6,024		$	6,415
Buildings		15,960			17,178
Machinery and equipment		141,442			154,670
Construction in process		6,329			17,355
		169,755			195,618
Less accumulated depreciation		(59,077	)		(70,966	)
	$	110,678		$	124,652