Geographic Information (Schedule of Long-Lived Assets by Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	$ 156,896	$ 144,495
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	99,711	96,824
Canada
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	51,493	41,777
United Kingdom
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant and equipment, net	$ 5,692	$ 5,894