STOCK COMPENSATION PLAN - Activity Related to Time-based and Performance-based RSUs and the Grant Date Fair Value (Details) - $ / shares | 3 Months Ended | 9 Months Ended | 25 Months Ended |
Sep. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 |
Revlon 2019 Transaction Incentive Program | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Awards granted (in shares) | | 78,000 | | | | | |
Revlon 2019 Transaction Incentive Program | 2019 | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 58,800 | | |
Awards granted (in shares) | | | | | 80,100 | | |
Awards vested (in shares) | | | | | (8,900) | | |
Awards forfeited/canceled (in shares) | | | | | (8,100) | | |
Outstanding, end of period (in shares) | 121,900 | | | | 121,900 | | 121,900 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 15.95 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 13.11 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 15.30 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 15.11 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 14.09 | | | | $ 14.09 | | $ 14.09 |
Revlon 2019 Transaction Incentive Program, Tier 1 | Restricted Stock Units | | | | | | | |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Accelerated vesting, number of awards (in shares) | 355 | | | | 6,540 | | 47,743 |
LTIP Plan | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 732,200 | | |
Awards granted (in shares) | | | | | 1,559,000 | | |
Awards vested (in shares) | | | | | (340,000) | | |
Awards forfeited/canceled (in shares) | | | | | (140,000) | | |
Outstanding, end of period (in shares) | 1,811,200 | | | | 1,811,200 | | 1,811,200 |
LTIP Plan | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 934,100 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | (38,500) | | |
Awards forfeited/canceled (in shares) | | | | | (289,500) | | |
Outstanding, end of period (in shares) | 606,100 | | | | 606,100 | | 606,100 |
LTIP Plan | Restricted Stock Units | | | | | | | |
Restricted Stock Units | | | | | | | |
Awards granted (in shares) | | | 0 | 1,300,000 | | 0 | |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Accelerated vesting, number of awards (in shares) | 887 | | | | 8,121 | | 57,763 |
LTIP Plan | 2021 | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Awards granted (in shares) | | | | | 1,559,000 | | |
Awards forfeited/canceled (in shares) | | | | | (81,200) | | |
Outstanding, end of period (in shares) | 1,477,800 | | | | 1,477,800 | | 1,477,800 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | $ 10.77 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 10.75 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 10.77 | | | | $ 10.77 | | $ 10.77 |
LTIP Plan | 2021 | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Awards granted (in shares) | | | | | 0 | | |
Awards forfeited/canceled (in shares) | | | | | 0 | | |
Outstanding, end of period (in shares) | 0 | | | | 0 | | 0 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | $ 0 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 0 | | | | $ 0 | | $ 0 |
LTIP Plan | 2020 | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 496,500 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | (182,700) | | |
Awards forfeited/canceled (in shares) | | | | | (52,100) | | |
Outstanding, end of period (in shares) | 261,700 | | | | 261,700 | | 261,700 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 14.96 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 14.96 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 14.96 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 14.96 | | | | $ 14.96 | | $ 14.96 |
LTIP Plan | 2020 | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 462,900 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | 0 | | |
Awards forfeited/canceled (in shares) | | | | | (73,500) | | |
Outstanding, end of period (in shares) | 389,400 | | | | 389,400 | | 389,400 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 14.96 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 14.96 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 14.96 | | | | $ 14.96 | | $ 14.96 |
LTIP Plan | 2019 | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 169,300 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | (91,400) | | |
Awards forfeited/canceled (in shares) | | | | | (6,200) | | |
Outstanding, end of period (in shares) | 71,700 | | | | 71,700 | | 71,700 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 22.55 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 22.53 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 22.55 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 22.57 | | | | $ 22.57 | | $ 22.57 |
LTIP Plan | 2019 | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 255,300 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | 0 | | |
Awards forfeited/canceled (in shares) | | | | | (38,600) | | |
Outstanding, end of period (in shares) | 216,700 | | | | 216,700 | | 216,700 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 22.55 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 22.55 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 22.55 | | | | $ 22.55 | | $ 22.55 |
LTIP Plan | 2018 | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 66,400 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | (65,900) | | |
Awards forfeited/canceled (in shares) | | | | | (500) | | |
Outstanding, end of period (in shares) | 0 | | | | 0 | | 0 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 19.40 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 19.42 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 16.80 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 0 | | | | $ 0 | | $ 0 |
LTIP Plan | 2018 | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 215,900 | | |
Awards granted (in shares) | | | | | 0 | | |
Awards vested (in shares) | | | | | (38,500) | | |
Awards forfeited/canceled (in shares) | | | | | (177,400) | | |
Outstanding, end of period (in shares) | 0 | | | | 0 | | 0 |
Weighted Average Grant Date Fair Value Per RSU | | | | | | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | | | | | $ 19.42 | | |
Awards granted, weighted average grant date fair value (in dollars per share) | | | | | 0 | | |
Awards vested, weighted average grant date fair value (in dollars per share) | | | | | 19.44 | | |
Awards forfeited/canceled, weighted average grant date fair value (in dollars per share) | | | | | 19.42 | | |
Awards outstanding, weighted average grant date fair value (in dollars per share) | $ 0 | | | | $ 0 | | $ 0 |
Total LTIP and TIP RSU's | Time-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 791,000 | | |
Outstanding, end of period (in shares) | 1,933,100 | | | | 1,933,100 | | 1,933,100 |
Total LTIP and TIP RSU's | Performance-Based Restricted Stock Units (RSU) Awards | | | | | | | |
Restricted Stock Units | | | | | | | |
Outstanding, beginning of period (in shares) | | | | | 934,100 | | |
Outstanding, end of period (in shares) | 606,100 | | | | 606,100 | | 606,100 |