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ACQUISITIONS - Narrative (Details) $ in Thousands |  |  |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Feb. 01, 2022 USD ($) shares | Jan. 04, 2022 USD ($) shares | Feb. 08, 2021 USD ($) shares | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) businessCombination tranche shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Measurement period adjustments |  |  |  | $ 6,269 |  | $ 0 |
Goodwill |  |  |  | 1,073,906 |  | $ 625,758 | $ 77,212
Unbound Security, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination, provisional information, initial accounting incomplete, adjustment, other noncurrent assets |  |  |  | 4,100 |  |  |
Measurement period adjustments |  |  |  | 4,100 |  |  |
Total purchase consideration |  | $ 257,984 |  |  |  |  |
Cash subject to an indemnity holdback |  | $ 21,700 |  |  |  |  |
Holdback release term |  | 18 months |  |  |  |  |
Total acquisition costs |  | $ 3,000 |  |  |  |  |
Goodwill |  | $ 222,732 |  |  |  |  |
Unbound Security, Inc. | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares to subject to indemnity holdback (in shares) | shares |  | 85,324 |  |  |  |  |
FairXchange, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination, provisional information, initial accounting incomplete, adjustment, other noncurrent assets |  |  |  | 300 |  |  |
Measurement period adjustments |  |  |  | 300 |  |  |
Total purchase consideration | $ 275,090 |  |  |  |  |  |
Cash subject to an indemnity holdback | $ 4,700 |  |  |  |  |  |
Holdback release term | 15 months |  |  |  |  |  |
Goodwill | $ 231,685 |  |  |  |  |  |
FairXchange, Inc. | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares to subject to indemnity holdback (in shares) | shares | 83,035 |  |  |  |  |  |
FairXchange, Inc. | Common Stock, Not Subject to Indemnity Holdback | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares included in purchase consideration (in shares) | shares | 170,397 |  |  |  |  |  |
FairXchange, Inc. | General and administrative |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total acquisition costs | $ 1,100 |  |  |  |  |  |
Bison Trails Co. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total purchase consideration |  |  | $ 457,268 |  |  |  |
Holdback release term |  |  | 18 months |  |  |  |
Total acquisition costs |  |  | $ 3,700 |  |  |  |
Gain on remeasurement |  |  | 8,800 |  |  |  |
Goodwill |  |  | $ 404,167 |  |  |  |
Bison Trails Co. | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares to subject to indemnity holdback (in shares) | shares |  |  | 496,434 |  |  |  |
Other Acquisitions |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination, provisional information, initial accounting incomplete, adjustment, other noncurrent assets |  |  |  | 1,900 |  |  |
Measurement period adjustments |  |  |  | $ 1,900 |  |  |
Total purchase consideration |  |  |  |  | $ 135,700 |  |
Number of businesses acquired | businessCombination |  |  |  |  | 3 |  |
Contingent consideration arrangement, number of tranches | tranche |  |  |  |  | 2 |  |
Goodwill |  |  |  |  | $ 86,041 |  |
Goodwill, expected to be deductible |  |  |  |  | $ 77,100 |  |
Other Acquisitions | Contingent Consideration Tranche One |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Contingent consideration arrangement, settlement term |  |  |  |  | 1 year |  |
Other Acquisitions | Contingent Consideration Tranche Two |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Contingent consideration arrangement, settlement term |  |  |  |  | 2 years |  |
Other Acquisitions | Class A common stock | Contingent Consideration Tranche One |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares to be issued for contingent consideration (in shares) | shares |  |  |  |  | 75,534 |  |
Other Acquisitions | Class A common stock | Contingent Consideration Tranche Two |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares to be issued for contingent consideration (in shares) | shares |  |  |  |  | 75,534 |  |
Other Acquisitions | Common Stock, Not Subject to Indemnity Holdback | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares included in purchase consideration (in shares) | shares |  |  |  |  | 160,840 |  |
Issuance term for shares included in purchase consideration |  |  |  |  | 6 months |  |
Other Acquisitions | Common Stock, Subject to indemnity Holdback | Class A common stock |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of shares included in purchase consideration (in shares) | shares |  |  |  |  | 39,663 |  |
Other Acquisitions | Common Stock, Subject to indemnity Holdback | Class A common stock | Minimum |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Issuance term for shares included in purchase consideration |  |  |  |  | 15 months |  |
Other Acquisitions | Common Stock, Subject to indemnity Holdback | Class A common stock | Maximum |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Issuance term for shares included in purchase consideration |  |  |  |  | 18 months |  |
Other Acquisitions | General and administrative |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total acquisition costs |  |  |  |  | $ 3,500 |  |
Other Acquisitions | Technology and development |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total acquisition costs |  |  |  |  | $ 3,200 |  |

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