Information on Segments (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Information

The following tables represent our segment information for the years ended December 31, 2023, 2022 and 2021 (in millions):

	Year ended December 31, 2023
	Installation			Other			Eliminations			Consolidated
Revenue	$	2,605.6		$	182.0		$	(9.0)		$	2,778.6
Cost of sales (1)	1,674.7			130.7			(6.7)			1,798.7
Segment gross profit	$	930.9		$	51.3		$	(2.3)		$	979.9
Segment gross profit percentage	35.7		%	28.2		%	25.6		%	35.3		%

	Year ended December 31, 2022
	Installation			Other			Eliminations			Consolidated
Revenue	$	2,513.6		$	162.4		$	(6.2)		$	2,669.8
Cost of sales (1)	1,678.8			123.7			(4.9)			1,797.6
Segment gross profit	$	834.8		$	38.7		$	(1.3)		$	872.2
Segment gross profit percentage	33.2		%	23.8		%	21.5		%	32.7		%

	Year ended December 31, 2021
	Installation			Other			Eliminations			Consolidated
Revenue	$	1,941.5		$	29.3		$	(2.1)		$	1,968.7
Cost of sales (1)	1,317.7			22.2			(1.7)			1,338.2
Segment gross profit	$	623.8		$	7.1		$	(0.4)		$	630.5
Segment gross profit percentage	32.1		%	24.5		%	23.6		%	32.0		%

(1)Cost of sales included in segment gross profit is exclusive of depreciation and amortization for the years ended December 31, 2023, 2022 and 2021.

The reconciliation between consolidated segment gross profit for each period as shown in the tables above to consolidated income before income taxes is as follows (in millions):

	Years ended December 31,
	2023		2022		2021
Segment gross profit - Consolidated	$	979.9	$	872.2	$	630.5
Depreciation and amortization (1)	49.2		44.4		41.0
Gross profit, as reported	930.7		827.8		589.5
Operating expenses	561.6		482.4		401.6
Operating income	369.1		345.4		187.9
Other expense, net	36.0		42.1		32.4
Income before income taxes	$	333.1	$	303.3	$	155.5

(1)Cost of sales included in segment gross profit is exclusive of depreciation and amortization for the years ended December 31, 2023, 2022 and 2021.