Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Minimum	Sep. 30, 2013 Maximum	Sep. 30, 2013 Contract intangibles	Sep. 30, 2012 Contract intangibles	Sep. 30, 2013 Contract intangibles Minimum	Sep. 30, 2013 Contract intangibles Maximum	Sep. 30, 2013 Brand and technology	Sep. 30, 2012 Brand and technology	Sep. 30, 2013 Brand and technology Minimum	Sep. 30, 2013 Brand and technology Maximum	Sep. 30, 2013 Covenants not to compete	Sep. 30, 2012 Covenants not to compete	Sep. 30, 2013 Covenants not to compete Minimum	Sep. 30, 2013 Covenants not to compete Maximum	Sep. 30, 2013 Patent and trademarks	Sep. 30, 2012 Patent and trademarks	Sep. 30, 2013 Patent and trademarks Minimum	Sep. 30, 2013 Patent and trademarks Maximum
Intangible Assets
Useful Life			3 years	7 years			5 years	7 years			3 years	5 years			3 years	5 years			3 years	10 years
Gross Carrying Amount					$ 37,236	$ 33,300			$ 5,965	$ 6,325			$ 4,440	$ 4,400			$ 509	$ 374
Accumulated Amortization					(16,696)	(7,266)			(1,666)	(1,023)			(1,439)	(1,770)			(144)	(136)
Net Carrying Amount	$ 28,205	$ 34,204			$ 20,540	$ 26,034			$ 4,299	$ 5,302			$ 3,001	$ 2,630			$ 365	$ 238