Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Summary of Carrying Value and Estimated Fair Value of Long-Term Debt

The following table summarizes the carrying value and estimated fair value of these financial instruments as of March 31, 2020 and December 31, 2019, respectively:

		2020				2019
	Fair Value Hierarchy	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial instruments not carried at fair value:
Long-term debt excluding finance lease liabilities and syndicated revolving credit facility debt issuance costs	Level 2	$	2,650.5	$	2,895.0	$	2,650.4	$	2,902.2