STOCK-BASED COMPENSATION - Total Stock-Based Compensation Expense (Details) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
Stock-based compensation expense, before income taxes | $ 54.9 | $ 54.7 | $ 49.7 |
Cost of services | |||
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
Stock-based compensation expense, before income taxes | 12.0 | 11.2 | 10.7 |
Selling, general and administrative expenses | |||
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | |||
Stock-based compensation expense, before income taxes | $ 42.9 | $ 43.5 | $ 39.0 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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