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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Fair Value |
Assets and Liabilities: |
Deferred Compensation Plan Assets (1) | $ 42.3
Deferred Compensation Plan Liability (1) | (42.3)
Total assets and liabilities | 0.0
Quoted Prices in Active Markets for Identical Assets (Level 1) |
Assets and Liabilities: |
Deferred Compensation Plan Assets (1) | 42.3
Deferred Compensation Plan Liability (1) | 0.0
Total assets and liabilities | 42.3
Significant Other Observable Inputs (Level 2) |
Assets and Liabilities: |
Deferred Compensation Plan Assets (1) | 0.0
Deferred Compensation Plan Liability (1) | (42.3)
Total assets and liabilities | (42.3)
Significant Unobservable Inputs (Level 3) |
Assets and Liabilities: |
Deferred Compensation Plan Assets (1) | 0.0
Deferred Compensation Plan Liability (1) | 0.0
Total assets and liabilities | $ 0.0

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- Definition Represents the deferred compensation plan assets, fair value disclosure as of reporting period. + References No definition available. + Details
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- Definition Represents the deferred compensation plan liabilities, fair value disclosure as of reporting period. + References No definition available. + Details
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