Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

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
As of June 30, 2016	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Valuation Technique ⁽¹⁾
Other current assets:
Current portion of restricted marketable securities	$	27.4	$	—	$	27.4	$	—	M
Other long-term assets:
Restricted marketable securities	29.9		—		29.9		—		M
Redeemable noncontrolling interests	120.0		—		—		120.0		I
As of December 31, 2015
Other current assets:
Current portion of restricted marketable securities	$	16.1	$	—	$	16.1	$	—	M
Other long-term assets:
Restricted marketable securities	40.1		—		40.1		—		M
Redeemable noncontrolling interests	121.1		—		—		121.1		I

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

The carrying amounts and estimated fair values for all of our other financial instruments are presented in the following table (in millions):



	As of June 30, 2016				As of December 31, 2015
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Long-term debt:
Advances under revolving credit facility	$	150.0	$	150.0	$	130.0	$	130.0
Term loan facilities	432.3		433.8		443.3		445.0
7.75% Senior Notes due 2022	75.3		79.3		174.3		183.7
5.125% Senior Notes due 2023	294.9		297.8		294.6		288.0
5.75% Senior Notes due 2024	1,192.9		1,215.8		1,192.6		1,146.0
5.75% Senior Notes due 2025	343.6		350.0		343.4		332.5
2.00% Convertible Senior Subordinated Notes due 2043	270.7		372.4		265.9		345.0
Other notes payable	43.3		43.3		39.2		39.2
Financial commitments:
Letters of credit	—		35.0		—		34.2