Property And Equipment, Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Property And Equipment, Net [Abstract]
Depreciation expense	$ 72.8	$ 73.0	$ 224.9	$ 213.7
Non-cash capital expenditures			$ 11.4		$ 29.0