Information on Segments - Schedule of Reconciliation of Revenue and Gross Profit from Segments to Consolidated Net Revenue and Income Before Income Taxes (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 2,941.3	$ 2,778.6	$ 2,669.8
Less:
Depreciation and amortization	55.4	49.2	44.4
Gross profit	994.5	930.7	827.8
Operating expenses	612.0	561.6	482.4
Operating income	382.5	369.1	345.4
Other expense, net	36.1	36.0	42.1
Income before income taxes	$ 346.4	333.1	303.3
Number of operating segments | segment	3
Installation
Segment Reporting Information [Line Items]
Revenue	$ 2,761.9	2,605.6	2,513.6
Segment gross profit	$ 1,002.0	930.9	834.8
Less:
Number of operating segments | segment	1
Other
Less:
Number of operating segments | segment	2
Operating segments | Installation
Segment Reporting Information [Line Items]
Revenue	$ 2,761.9	2,605.6	2,513.6
Segment gross profit	1,002.0	930.9	834.8
Operating segments | Other
Segment Reporting Information [Line Items]
Revenue	196.9	182.0	162.4
Segment gross profit	53.1	51.3	38.7
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(17.5)	(9.0)	(6.2)
Segment gross profit	$ (5.2)	$ (2.3)	$ (1.3)