CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Millions		Total	Share Capital	Additional Paid in Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income
Beginning balance (in shares) at Dec. 31, 2020			342,024,612
Beginning balance at Dec. 31, 2020		$ 512.1	$ 0.0	$ 1,791.8	$ (1,331.2)	$ 51.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		119.6			119.6
Exercise of employee stock options (in shares)			370,513
Exercise of employee stock options		4.6		4.6
Stock comp activity, net of withholdings for tax (in shares)	[1]		620,570
Stock comp activity, net of withholdings for tax	[1]	15.8		15.8
Employee 401K match with Vertiv stock (in shares)			357,344
Employee 401K match with Vertiv stock		8.2		8.2
Exercise of warrants (in shares)	[2]		9,346,822
Exercise of warrants	[2]	176.0		176.0
Stock issuance related to acquisition (in shares)	[3]		23,081,996
Stock issuance related to acquisition	[3]	601.1		601.1
Dividend payment		(3.8)			(3.8)
Other comprehensive income (loss), net of tax		(15.9)				(15.9)
Ending balance (in shares) at Dec. 31, 2021			375,801,857
Ending balance at Dec. 31, 2021		1,417.7	$ 0.0	2,597.5	(1,215.4)	35.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		76.6			76.6
Exercise of employee stock options (in shares)			202,724
Exercise of employee stock options		3.1		3.1
Stock comp activity, net of withholdings for tax (in shares)	[4]		563,597
Stock comp activity, net of withholdings for tax	[4]	20.4		20.4
Employee 401K match with Vertiv stock (in shares)			800,659
Employee 401K match with Vertiv stock		9.7		9.7
Dividend payment		(3.8)			(3.8)
Other comprehensive income (loss), net of tax		$ (81.8)				(81.8)
Ending balance (in shares) at Dec. 31, 2022		377,368,837	377,368,837
Ending balance at Dec. 31, 2022		$ 1,441.9	$ 0.0	2,630.7	(1,142.6)	(46.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)		$ 460.2			460.2
Exercise of employee stock options (in shares)		2,092,068	2,122,710
Exercise of employee stock options		$ 27.4		27.4
Stock comp activity, net of withholdings for tax (in shares)	[5]		420,170
Stock comp activity, net of withholdings for tax	[5]	21.7		21.7
Employee 401K match with Vertiv stock (in shares)			508,965
Employee 401K match with Vertiv stock		9.9		9.9
Exercise of warrants (in shares)	[6]		1,368,194
Exercise of warrants	[6]	21.6		21.6
Dividend payment		(9.5)			(9.5)
Other comprehensive income (loss), net of tax		$ 41.7				41.7
Ending balance (in shares) at Dec. 31, 2023		381,788,876	381,788,876
Ending balance at Dec. 31, 2023		$ 2,014.9	$ 0.0	$ 2,711.3	$ (691.9)	$ (4.5)

[1] Net stock compensation activity includes 943,164 vested shares offset by 322,594 shares withheld for taxes valued at $7.3 and stock-based compensation of $23.2.

[2] The exercise of warrants includes $107.5 of cash received for the exercise of Public Warrants.

[3] On November 1, 2021 the Company issued 23,081,996 shares valued at $601.1 for the acquisition of E&I.

[4] Net stock compensation activity includes 876,358 vested shares offset by 312,761 shares withheld for taxes valued at $4.3 and stock-based compensation of $24.7.

[5] Net stock compensation activity includes 635,663 vested shares offset by 215,493 shares withheld for taxes valued at $3.3 and stock-based compensation of $25.0.

[6] On February 24, 2023, GS Sponsor LLC elected to exercise 5,266,666 warrants on a cashless basis pursuant to the agreement governing the warrants, in exchange for which the Company issued 1,368,194 shares of Class A common stock.