Related Party Costs and Expenses [Text] (Details) (Sac Holdings, Four Sac, Five Sac, Galaxy, and Private Mini [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2014
Sac Holdings, Four Sac, Five Sac, Galaxy, and Private Mini [Member]
Related party costs and expenses:
Revenue, excluding dealer agreement commissions and expenses	$ 23.7
Revenue, generated by the dealer agreement from related parties	193.0
Commission expenses, generated from dealer agreement with related parties	41.7
Expenses, related parties	2.0
Cash flow, related party	$ 53.4