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EQUITY AND LONG-TERM INCENTIVE COMPENSATION - Long Term Incentive Compensation (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
May 11, 2021 | Jul. 03, 2021 | Jun. 27, 2020 | Jul. 03, 2021 | Jun. 27, 2020
Stock-based Compensation |  |  |  |  |
Related tax benefit |  | $ 0.6 | $ 0.8 | $ 1.0 | $ 1.6
Performance Shares |  |  |  |  |
Stock-based Compensation |  |  |  |  |
Award vesting period (years) |  |  |  | 3 years |
Restricted Stock Units (RSUs) | Non Employee Director |  |  |  |  |
Stock-based Compensation |  |  |  |  |
Granted (in shares) | 17,000.000 |  |  |  |
Performance Stock Units, Stock Options, and Restricted Stock Units |  |  |  |  |
Stock-based Compensation |  |  |  |  |
Compensation expense |  | $ 3.3 | $ 3.1 | $ 6.1 | $ 6.4

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