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STOCK-BASED COMPENSATION - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jan. 01, 2025 shares | Jun. 30, 2021 USD ($) tranche $ / shares shares | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) shares | Jun. 30, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted (in shares) | shares |  |  | 0 |  | 0 |
Aggregate intrinsic value, exercised |  |  |  |  | $ 160,618,000 | $ 110,042,000
Total |  |  | $ 34,592,000 | $ 26,746,000 | 65,610,000 | 51,731,000
Stock options outstanding |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost, options |  |  | $ 0 |  | $ 0 |
Number of options available for grant (in shares) | shares |  |  | 10,949,000 |  | 10,949,000 |
RSUs outstanding |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation expense, excluding options |  |  | $ 325,074,000 |  | $ 325,074,000 |
Unrecognized compensation cost, weighted-average period of recognition (in years) |  |  |  |  | 3 years |
Equity instruments other than options, grants in period (in shares) | shares |  |  |  |  | 305,000 |
Founder awards where performance has been met |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation expense, excluding options |  |  | 8,859,000 |  | $ 8,859,000 |
Total |  |  | $ 3,963,000 | $ 5,557,000 | $ 8,077,000 | $ 11,097,000
Founder awards where performance has been met | Founders |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation expense, excluding options |  | $ 110,817,000 |  |  |  |
Equity instruments other than options, grants in period (in shares) | shares |  | 1,800,000 |  |  |  |
Settlement period after vesting (in years) |  | 1 year |  |  |  |
Number of tranches | tranche |  | 10 |  |  |  |
Award service period (in years) |  | 10 years |  |  |  |
Founder awards where performance has been met | Founders | Tranche One |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (in percent) |  | 25.00% |  |  |  |
Founder awards where performance has been met | Founders | Tranche Two |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (in percent) |  | 25.00% |  |  |  |
Founder awards where performance has been met | Founders | Tranche Three |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (in percent) |  | 25.00% |  |  |  |
Founder awards where performance has been met | Founders | Tranche Four |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage (in percent) |  | 25.00% |  |  |  |
Founder awards where performance has been met | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award service period (in years) |  | 3 years 6 months 29 days |  |  |  |
Founder awards where performance has been met | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award service period (in years) |  | 5 years 11 months 1 day |  |  |  |
Founder awards where performance has been met | Share-Based Payment Arrangement, Founders |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average grant date fair value (in usd per share) | $ / shares |  | $ 61.56 |  |  |  |
2021 Plan | Common Class A |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Additional shares authorized (in shares) | shares | 2,247,000 |  |  |  |  |
2011 Equity Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period (in years) |  |  |  |  | 4 years |
Share-based compensation, term of award (in years) |  |  |  |  | 10 years |
Granted (in shares) | shares |  |  |  |  | 0 |

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