Property, Plant and Equipment (Tables)

12 Months Ended

Sep. 30, 2013

Property, Plant and Equipment

Summary of the major classes of property, plant and equipment

	September 30,
	2012			2013
Land and land improvements	$	6,415		$	6,856
Buildings		17,178			19,034
Machinery and equipment		154,670			179,407
Construction in process		17,355			31,472
		195,618			236,769
Less accumulated depreciation		(70,966	)		(84,005	)
	$	124,652		$	152,764