Summary of Significant Accounting Policies (Intangible Assets) (Details)	12 Months Ended
	Sep. 30, 2013
Developed product technologies [Member]
Intangible Assets
Estimated useful lives of the assets	3 years
Customer Relationships [Member]
Intangible Assets
Estimated useful lives of the assets	10 years
Trademarks [Member] | Minimum [Member]
Intangible Assets
Estimated useful lives of the assets	3 years
Trademarks [Member] | Maximum [Member]
Intangible Assets
Estimated useful lives of the assets	5 years
Covenants not to compete [Member] | Minimum [Member]
Intangible Assets
Estimated useful lives of the assets	2 years
Covenants not to compete [Member] | Maximum [Member]
Intangible Assets
Estimated useful lives of the assets	4 years