Selected Financial Information by Reportable Operating Segment (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenues		$ 610.7	$ 460.5
Adjusted EBITDA		86.2	25.2
Capital expenditures		26.3	18.7
U.S. Operating Segment
Segment Reporting Information [Line Items]
Revenues	[1]	479.1	372.0
International Operating Segment
Segment Reporting Information [Line Items]
Revenues		131.6	88.5
Operating Segments | U.S. Operating Segment
Segment Reporting Information [Line Items]
Revenues		481.7	373.7
Adjusted EBITDA		63.4	14.4
Capital expenditures		22.7	14.0
Operating Segments | International Operating Segment
Segment Reporting Information [Line Items]
Revenues		131.6	88.5
Adjusted EBITDA		22.8	10.8
Capital expenditures		3.6	4.7
Eliminations
Segment Reporting Information [Line Items]
Revenues		$ (2.6)	$ (1.7)

[1] U.S. segment revenue excludes intercompany transactions with the international operating segment. See Note 16 for the amount of intercompany eliminations for the periods presented.