EARNINGS (LOSS) PER SHARE (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The details of the earnings per share calculations for the years ended December 31, 2022, 2021, and 2020 are as follows:

	Year Ended December 31,
(in millions, except per share and per share amounts)	2022		2021		2020(1)
Basic earnings (loss) per share computation:
Net income (loss)	$	76.6	$	119.6	$	(327.3)
Weighted-average number of shares outstanding - basic	376,730,519		355,544,632		307,076,397
Basic earnings per share	$	0.20	$	0.34	$	(1.07)
Diluted earnings (loss) per share computation:
Net income (loss)	$	76.6	$	119.6	$	(327.3)
Gain on fair value of warrant liabilities	(90.9)		—		—
Net income (loss) adjusted for the gain on fair value of warrant liabilities	$	(14.3)	$	119.6	$	(327.3)
Weighted-average number of shares outstanding - basic	376,730,519		355,544,632		307,076,397
Dilutive effect of private warrants	1,493,532		—		—
Dilutive effect of equity-based compensation	—		4,595,691		—
Weighted-average number of shares outstanding - diluted	378,224,051		360,140,323		307,076,397
Diluted earnings (loss) per share	$	(0.04)	$	0.33	$	(1.07)

(1)The Business Combination was accounted for as a reverse capitalization in accordance with U.S. GAAP. See “Description of the Business” in “Note 1 - Summary of Significant Accounting Policies.” Accordingly, weighted-average shares outstanding for purposes of the earnings per share calculation have been retroactively restated as shares reflecting the exchange ratio established in the Business Combination (1.0 Vertiv Holdings share to 118.261955 Vertiv Holdings Co shares).