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Business Segments (Schedule of Long-Lived Assets, By Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	$ 144,589	$ 78,652
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	96,918	60,012
United Kingdom
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	5,894	6,238
Canada
Revenues From External Customers And Long Lived Assets [Line Items]
Total long-lived assets	$ 41,777	$ 12,402

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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