Summary Of Significant Accounting Policies (Estimated Useful Lives) (Details)	12 Months Ended
	Dec. 31, 2014
Minimum [Member] | Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	1 year
Minimum [Member] | Contracts-Owned Equipment [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	5 years
Maximum [Member] | Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	10 years
Maximum [Member] | Contracts-Owned Equipment [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets	7 years