Segments - Holdings - Selected Financial Information by Reportable Operating Segment (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenues		$ 874.8	$ 650.4	$ 2,427.8	$ 1,855.0
Adjusted EBITDA		196.8	99.5	514.5	263.0
Capital expenditures		35.1	24.7	89.7	65.3
U.S. Operating Segment
Segment Reporting Information [Line Items]
Revenues	[1]	682.5	511.7	1,896.5	1,484.5
International Operating Segment
Segment Reporting Information [Line Items]
Revenues		192.3	138.7	531.3	370.5
Operating Segments | U.S. Operating Segment
Segment Reporting Information [Line Items]
Revenues		686.2	514.4	1,907.2	1,491.6
Adjusted EBITDA		26.9	20.2	70.7	50.7
Capital expenditures		151.2	70.7	395.4	196.2
Operating Segments | International Operating Segment
Segment Reporting Information [Line Items]
Revenues		192.3	138.7	531.3	370.5
Adjusted EBITDA		8.2	4.5	19.0	14.6
Capital expenditures		45.6	28.8	119.1	66.8
Eliminations
Segment Reporting Information [Line Items]
Revenues		$ (3.7)	$ (2.7)	$ (10.7)	$ (7.1)

[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.