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STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Stock-based Compensation Plans |  |  |
Cash received from purchase plan purchases | $ 15,200,000 | $ 9,600,000 | $ 8,600,000
Stock-based compensation | 28,300,000 | 32,300,000 | 18,800,000
Stock-based compensation related to cash-settled RSUs | 2,200,000 | 1,100,000 | 1,100,000
Tax benefits related to total stock-based compensation | 4,300,000 | 5,000,000 | 3,500,000
Additional Paid-in Capital [Member] |  |  |
Stock-based Compensation Plans |  |  |
Stock-based compensation | 28,300,000 | 32,300,000 | 18,800,000
Restricted Stock Awards |  |  |
Stock-based Compensation Plans |  |  |
Fair value of shares vested during period | 13,600,000 | $ 15,800,000 | $ 15,800,000
Unrecognized compensation cost related to stock-based compensation arrangements | $ 22,600,000 |  |
Weighted average period for recognition of cost | 3 years 1 month 6 days |  |
Restricted Stock Awards | Maximum |  |  |
Stock-based Compensation Plans |  |  |
Vesting period (years) | 5 years |  |
Employee Share-based Plan |  |  |
Stock-based Compensation Plans |  |  |
Aggregate maximum shares to be issued or transferred (in shares) | 4,500,000 |  |
Shares available for issuance (in shares) | 1,529,438 |  |
Employee stock purchase price in percentage of fair market value | 85.00% |  |
Shares issued to employees (in shares) | 116,680 | 202,393 | 142,576
Weighted average per share fair value of employee stock purchase rights issued (in dollars per share) | $ 43.57 | $ 19.51 | $ 16.00
Employee maximum contribution rate (as a percentage) | 10.00% |  |
Employee maximum contribution | $ 25,000 |  |
Restricted Stock Units (RSUs) |  |  |
Stock-based Compensation Plans |  |  |
Unrecognized compensation cost related to stock-based compensation arrangements | $ 4,400,000 |  |
Incentive Plan |  |  |
Stock-based Compensation Plans |  |  |
Aggregate maximum shares to be issued or transferred (in shares) | 2,200,000 |  |
Shares available for issuance (in shares) | 1,500,000 |  |
Incentive Plan | Restricted Stock Units (RSUs) |  |  |
Stock-based Compensation Plans |  |  |
Vest percentage | 100.00% |  |

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