v3.25.4

EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Feb. 06, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accumulated benefit obligation	$ 78.8	$ 63.0
Projected benefit obligation	93.4	74.0
Net amount recognized in the balance sheet	$ 76.5	62.3
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage per year (as percent)	25.00%
Vesting period (in years)	4 years
Contractual term (in years)	10 years
Compensation expense for stock options	$ 26.5	19.6	$ 14.3
Unrecognized compensation cost related to unvested options	$ 63.3
Unrecognized compensation cost related to unvested options, weighted-average period of recognition (in years)	1 year 11 months 4 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	7 years
Compensation expense for stock options	$ 10.6	$ 7.3	$ 7.8
Unrecognized compensation cost related to unvested options	$ 74.1
Unrecognized compensation cost related to unvested options, weighted-average period of recognition (in years)	4 years 1 month 20 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years	4 years	4 years
Compensation expense for stock options	$ 8.8	$ 7.7	$ 2.9
2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)				33.5
Share repurchase program, incremental annual increase to number of shares authorized (in shares)				10.5
Share repurchase program, incremental annual increase to number of shares authorized, percent of shares outstanding (as percent)				3.00%

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Vertiv Holdings Co 10-K