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DESCRIPTION OF BUSINESS (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 05, 2021 | Nov. 04, 2021 | Dec. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Common stock, authorized (in shares) |  |  |  |  | 154,379,258 |  |
Preferred stock authorized (in shares) |  |  | 0 | 75,812,755 | 75,812,755 |  |
Deferred offering costs |  |  | $ 0 |  | $ 0 |  |
Convertible preferred stock outstanding (in shares) |  |  | 0 |  | 70,990,919 | 62,187,015 | 60,239,135
Conversion of convertible preferred stock to additional paid-in-capital |  |  | $ 204,049 |  |  |  |
Preferred stock, shares authorized (in shares) | 20,000,000 |  | 20,000,000 |  | 0 |  |
Additional Paid-In Capital |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Conversion of convertible preferred stock to additional paid-in-capital |  | $ 204,000 | $ 204,042 |  |  |  |
IPO |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Sale of stock, price per share (in dollars per share) | $ 15.00 |  |  |  |  |  |
Aggregate proceeds from sale of stock | $ 237,000 |  |  |  |  |  |
Payments of stock underwriting discounts and commissions | 15,800 |  |  |  |  |  |
Deferred offering costs | $ 5,400 |  |  |  |  |  |
Class A Common Stock |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Common stock, authorized (in shares) | 2,000,000,000 |  | 2,000,000,000 | 2,000,000,000 | 0 |  |
Common stock, shares outstanding (in shares) |  |  | 49,016,511 |  | 0 |  |
Class A Common Stock | IPO |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Shares issued in transaction (in shares) | 23,221,152 |  |  |  |  |  |
Class A Common Stock | Initial Public Offering - Shares Offered by Company |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Shares issued in transaction (in shares) | 16,850,799 |  |  |  |  |  |
Class A Common Stock | Initial Public Offering - Shares Offered by Existing Shareholders |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Shares issued in transaction (in shares) | 6,370,353 |  |  |  |  |  |
Class B Common Stock |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Common stock, authorized (in shares) | 200,000,000 |  | 200,000,000 | 200,000,000 | 154,379,258 |  |
Common stock, shares outstanding (in shares) |  |  | 98,036,009 | 127,735,199 | 53,683,269 |  |
Stock issued from conversion of preferred stock (in shares) |  | 1,104,560 |  |  |  |  |
Stock issued during period (in shares) |  | 714,965 |  |  |  |  |
Convertible preferred stock |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |
Convertible preferred stock outstanding (in shares) |  | 70,990,919 |  |  |  |  |

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