Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2011

Our financial assets and liabilities that are measured at fair value on a recurring basis are as follows (in millions):


				Fair Value Measurements at Reporting Date Using
				Quoted
				Prices in
				Active		Significant
				Markets for		Other			Significant
				Identical		Observable			Unobservable
				Assets		Inputs			Inputs		Valuation
	Fair Value			(Level 1)		(Level 2)			(Level 3)		Technique⁽¹⁾
As of June 30, 2011
Other current assets:
Current portion of restricted marketable securities	$	22.0		$	—	$	22.0		$	—		M
Other long-term assets:
Restricted marketable securities		23.7			—		23.7			—		M
As of December 31, 2010
Other current assets:
Current portion of restricted marketable securities	$	18.2		$	—	$	18.2		$	—		M
June 2009 trading swap		1.2			—		1.2			—		I
Other long-term assets:
Restricted marketable securities		19.3			—		19.3			—		M
Accrued expenses and other current liabilities:
March 2006 trading swap		(12.1	)		—		(12.1	)		—		I


⁽¹⁾		The three valuation techniques are: market approach (M), cost approach (C), and income approach (I).


	As of June 30, 2011				As of December 31, 2010
	Carrying		Estimated		Carrying			Estimated
	Amount		Fair Value		Amount			Fair Value
Interest rate swap agreements:
March 2006 trading swap	$	—	$	—	$	(12.1	)	$	(12.1	)
June 2009 trading swap		—		—		1.2			1.2
Long-term debt:
Advances under $500 million revolving credit facility		140.0		140.0		78.0			78.0
Term Loan Facility		100.0		100.0		—			—
10.75% Senior Notes due 2016		164.0		174.9		495.5			543.2
7.25% Senior Notes due 2018		336.8		350.1		275.0			280.5
8.125% Senior Notes due 2020		285.6		311.0		285.5			311.8
7.75% Senior Notes due 2022		312.0		327.8		250.0			258.1
Other bonds payable		1.8		1.8		1.8			1.8
Other notes payable		36.1		36.1		36.4			36.4
Financial commitments:
Letters of credit		—		48.1		—			45.6