Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 97,108	$ 73,602
Accumulated depreciation	42,243	36,454
Property, plant and equipment, net	54,865	37,148
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	975	469
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	15,446	11,546
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 80,687	$ 61,587