Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

11.Goodwill and Other Intangible Assets

A summary of the Company's goodwill is as follows:

	U.S. Operating Segment		International Operating Segment			Total
Balance at January 1, 2024 (1)	$	1,182.9	$	68.1		$	1,251.0
Foreign currency translation adjustments		—		(2.2	)		(2.2	)
Balance at March 31, 2024 (1)	$	1,182.9	$	65.9		$	1,248.8

(1)Balances are presented net of accumulated impairment losses of $214.0 for the U.S. operating segment and $43.8 for the international operating segment. See discussion of the qualitative impairment analysis performed by the Company as of March 31, 2024 at Note 12.

A summary of the Company's intangible assets is as follows:

	Balance at January 1, 2024			Amortization			Balance at March 31, 2024
Intangible assets with finite lives:
Gross carrying amount	$	77.8		$	—		$	77.8
Accumulated amortization		(75.3	)		(0.5	)		(75.8	)
Total net intangible assets with finite lives	$	2.5		$	(0.5	)	$	2.0
Intangible assets with indefinite lives:
Tradename and other		300.3			—			300.3
Total intangible assets, net	$	302.8		$	(0.5	)	$	302.3

The estimated aggregate future amortization expense for intangible assets is as follows:

	Estimated
	Amortization
For the nine months ended December 31, 2024	$	1.5
For the twelve months ended December 31, 2025		0.5
Total	$	2.0