Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Financial Assets And Liabilities Measured At Fair Value

The following table presents information about our financial instruments measured at fair value on a recurring basis as of December 31, 2014 and 2013 using the inputs and fair value hierarchy discussed in Note 2, “Summary of Significant Accounting Policies and Recent Accounting Pronouncements”:

Financial Instruments Measured at Fair Value on a Recurring Basis

	December 31, 2014								December 31, 2013
(in millions)	Quoted  Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs (Level 3)		Total		Quoted  Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets
Deferred compensation plan investments (1)	$	56.1	$	—	$	—	$	56.1	$	43.8	$	—	$	—	$	43.8

(1) Approximately $1.5 million of participant cash was withdrawn from our deferred compensation plan investments during the year ended December 31, 2014.

Fair Value Of Notes Receivable And Notes Payable

The following table presents the carrying and estimated fair values of our notes payable for the years ended December 31:

	December 31, 2014				December 31, 2013
(in millions)	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Fixed rate notes payable	$	2,533.8	$	2,666.1	$	2,319.5	$	2,391.5
Floating rate notes payable	209.7		203.7		211.3		201.4