Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2025		Jun. 30, 2024		Jun. 30, 2025		Jun. 30, 2024
Income Statement [Abstract]
Revenues from services	$ 4,519.3		$ 4,520.7	[1]	$ 8,609.6		$ 8,924.0	[2]
Cost of services	3,755.6		3,734.8		7,147.6		7,374.4
Gross profit	763.7		785.9		1,462.0		1,549.6
Selling and administrative expenses, excluding impairment charges	700.3		684.8		1,370.4		1,382.6
Impairment charges	88.7	[3]	0.0		88.7	[4]	0.0
Selling and administrative expenses	789.0		684.8		1,459.1		1,382.6
Operating profit	(25.3)		101.1		2.9		167.0
Interest and other expenses, net	16.5		8.7		28.0		17.1
(Loss) earnings before income taxes	(41.8)		92.4		(25.1)		149.9
Provision for income taxes	25.3		32.3		36.4		50.1
Net (loss) earnings	$ (67.1)		$ 60.1		$ (61.5)		$ 99.8
Net (loss) earnings per share - basic	$ (1.44)		$ 1.25		$ (1.32)		$ 2.07
Net (loss) earnings per share - diluted	$ (1.44)		$ 1.24		$ (1.32)		$ 2.05
Weighted average shares - basic	46.5		47.9		46.7		48.1
Weighted average shares - diluted	46.5		48.4		46.7		48.7

[1] Effective January 1, 2025, our segment reporting was realigned to include our Morocco business within Other Southern Europe. Accordingly, France is now adjusted to exclude Morocco. All previously reported results have been recast to conform to the current year presentation.

[2] Effective January 1, 2025, our segment reporting was realigned to include our Morocco business within Other Southern Europe. Accordingly, France is now adjusted to exclude Morocco. All previously reported results have been recast to conform to the current year presentation.

[3] Impairment charges for the three months ended June 30, 2025 consist of a goodwill impairment related to our investments in Switzerland and the United Kingdom and an impairment of an indefinite lived intangible asset in our Switzerland business.

[4] Impairment charges for the six months ended June 30, 2025 consist of a goodwill impairment related to our investments in Switzerland and the United Kingdom and an impairment of an indefinite lived intangible asset in our Switzerland business.