ACQUISITIONS AND DISPOSITIONS - Narrative (Details) - USD ($)					12 Months Ended
	Oct. 31, 2023	Sep. 01, 2022	Apr. 07, 2022	Sep. 30, 2021	Dec. 31, 2026	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021	Dec. 31, 2025	Dec. 31, 2024
Business Acquisition [Line Items]
Change in fair value of contingent consideration						$ 45,600,000	$ 0	$ 0
Goodwill	$ 2,491,300,000					2,491,300,000	$ 2,485,600,000	2,228,900,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]							Selling, general and administrative expenses
Technical Solutions
Business Acquisition [Line Items]
Goodwill	368,000,000.0					368,000,000.0	$ 367,400,000	$ 162,700,000
Technical Solutions | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Customer Contracts For Healthcare Technology Management
Business Acquisition [Line Items]
Sale of customer contracts for clinical engineering services, consideration							8,500,000
Gain on sale of government services business							7,600,000
Fair Value, Inputs, Level 3 | Fair Value Measurements, Recurring
Business Acquisition [Line Items]
Fair value of contingent consideration	13,400,000					13,400,000	$ 59,000,000.0
RavenVolt
Business Acquisition [Line Items]
Cash purchase price		$ 170,000,000
Fair value of contingent consideration		59,000,000
Goodwill tax deductible amount		0
Goodwill		207,400,000
Intangibles acquired		16,700,000
RavenVolt | Fair Value, Inputs, Level 3 | Fair Value Measurements, Recurring
Business Acquisition [Line Items]
Fair value of contingent consideration	13,400,000					13,400,000
Change in fair value of contingent consideration	$ 45,600,000					$ 45,600,000
RavenVolt | Forecast
Business Acquisition [Line Items]
Maximum contingent consideration payable in future years					$ 130,000,000				$ 75,000,000	$ 75,000,000
RavenVolt | Maximum
Business Acquisition [Line Items]
Potential post-closing contingent consideration		$ 280,000,000
RavenVolt | Maximum | Forecast
Business Acquisition [Line Items]
Potential post-closing contingent consideration					$ 280,000,000
Momentum
Business Acquisition [Line Items]
Goodwill tax deductible amount			$ 0
Aggregate purchase price			54,800,000
Goodwill			42,900,000
Intangibles acquired			10,400,000
Total assets acquired, excluding goodwill and intangibles			20,400,000
Liabilities assumed			$ 18,900,000
Able
Business Acquisition [Line Items]
Aggregate purchase price				$ 741,700,000
Cash consideration placed in escrow				12,100,000
Cash consideration placed in escrow for indemnification asset				8,200,000
Able | Revolving Credit Facility
Business Acquisition [Line Items]
Proceeds from lines of credit				$ 325,000,000
Weighted average interest rate				1.58%