CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Revenue	$ 671.2	$ 675.8	$ 2,002.9	$ 2,051.5
Cost of revenue	(541.3)	(538.3)	(1,616.9)	(1,649.8)
Gross profit	129.9	137.5	386.0	401.7
Selling, general and administrative expenses	(163.8)	(169.5)	(483.4)	(547.1)
Impairment of goodwill	0.0	(141.7)	0.0	(714.9)
Impairment of assets, net	0.0	0.0	0.0	(20.0)
Loss from operations	(33.9)	(173.7)	(97.4)	(880.3)
Other income (expense):
Interest expense	(21.2)	(18.0)	(61.9)	(80.1)
Gain on investments, net	0.1	0.1	0.3	0.2
Gain on debt extinguishment, net of debt modification costs	0.0	18.0	0.0	147.2
Other expense, net	(4.0)	(1.0)	(13.2)	(11.8)
Total other income (expense)	(25.1)	(0.9)	(74.8)	55.5
Loss before income taxes	(59.0)	(174.6)	(172.2)	(824.8)
Benefit (provision) for income taxes	(8.1)	(12.0)	(20.9)	22.6
Net loss	(67.1)	(186.6)	(193.1)	(802.2)
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(1.5)	4.3	11.5	(0.2)
Unrealized gain (loss) on derivative contracts	0.5	(11.1)	1.9	6.5
Amount reclassified from accumulated other comprehensive income (loss) to earnings	(8.7)	(11.0)	(25.9)	(33.2)
Other comprehensive loss	(9.7)	(17.8)	(12.5)	(26.9)
Comprehensive loss	$ (76.8)	$ (204.4)	$ (205.6)	$ (829.1)
Net loss per share:
Basic (in dollars per share)	$ (0.28)	$ (0.82)	$ (0.82)	$ (3.59)
Diluted (in dollars per share)	$ (0.28)	$ (0.82)	$ (0.82)	$ (3.59)
Weighted average number of shares outstanding:
Basic (in shares)	240.4	226.4	236.8	223.6
Diluted (in shares)	240.4	226.4	236.8	223.6