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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Assumptions Used to Estimate the Fair Value of Stock Options Granted | The following table summarizes the assumptions used to estimate the fair value of the 2022 CEO stock option grant:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Risk-free interest rate | * |  | 3.01% |  | *
Expected term (in years) | * |  | ** |  | *
Expected volatility | * |  | 70% |  | *
Expected dividend yield | * |  | — |  | *
* Not applicable because no stock options were granted during the period. ** Each Vesting Price Threshold for the 2022 CEO grant has a unique expected term ranging from 3.4 years to 4.1 years.
Schedule of Stock Option Activity | The following table summarizes stock option activity for the years ended December 31, 2023, 2022, and 2021:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2020 | 3,399,240 |  |  | $ | 14.06 |  |  | 4.9 |  | $ | 503,174 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (423,824) |  |  | 6.55 |  |  |  |  | 43,525 |
Expired | (4,100) |  |  | 10.54 |  |  |  |  |
Forfeited | (17,960) |  |  | 11.78 |  |  |  |  |
Outstanding at December 31, 2021 | 2,953,356 |  |  | 15.16 |  |  | 4.0 |  | 147,812 |
Granted | 700,000 |  |  | 50.63 |  |  |  |  |
Exercised | (937,217) |  |  | 27.14 |  |  |  |  | 32,858 |
Expired | (7,900) |  |  | 4.06 |  |  |  |  |
Forfeited | (10,280) |  |  | 12.28 |  |  |  |  |
Outstanding at December 31, 2022 | 2,697,959 |  |  | 20.25 |  |  | 5.1 |  | 45,867 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (98,610) |  |  | 7.56 |  |  |  |  | 3,387 |
Expired | — |  |  | — |  |  |  |  |
Forfeited | — |  |  | — |  |  |  |  |
Outstanding at December 31, 2023 | 2,599,349 |  |  | $ | 20.73 |  |  | 4.2 |  | $ | 53,089 |
Exercisable at December 31, 2023 | 1,899,349 |  |  | $ | 9.71 |  |  | 2.6 |  | $ | 53,089 |
Schedule of Restricted Stock Unit Activity | The following table summarizes RSU activity for the years ended December 31, 2023, 2022, and 2021:
| Number of Shares |  | Weighted Average Grant Date Fair Value
Non-vested and outstanding at December 31, 2020 | 1,165,003 |  |  | $ | 46.04 |
Granted | 488,462 |  |  | 108.98 |
Vested | (354,130) |  |  | 43.39 |
Forfeited | (89,806) |  |  | 62.72 |
Non-vested and outstanding at December 31, 2021 | 1,209,529 |  |  | 70.99 |
Granted | 606,203 |  |  | 52.63 |
Vested | (403,648) |  |  | 58.63 |
Forfeited | (221,364) |  |  | 70.30 |
Non-vested and outstanding at December 31, 2022 | 1,190,720 |  |  | 65.97 |
Granted | 710,278 |  |  | 42.52 |
Vested | (668,119) |  |  | 58.64 |
Forfeited | (154,815) |  |  | 62.73 |
Non-vested and outstanding at December 31, 2023 | 1,078,064 |  |  | $ | 55.52 |
Schedule of Components of Stock-based Compensation Expense | The following table summarizes the components of our stock-based compensation expense by instrument type for the years ended December 31, 2023, 2022, and 2021 (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
RSUs | $ | 37,563 |  |  | $ | 35,290 |  |  | $ | 19,382 |
Stock options | 5,045 |  |  | 2,790 |  |  | 3,839 |
Common stock awards to Board of Directors | 779 |  |  | 750 |  |  | 623 |
Total stock-based compensation expense | $ | 43,387 |  |  | $ | 38,830 |  |  | $ | 23,844 |
Schedule of Stock-based Compensation Expense Included in Condensed Consolidated Statements of Operations | The following table summarizes stock-based compensation expense by line item in the accompanying consolidated statements of operations for the years ended December 31, 2023, 2022, and 2021 (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Cost of revenue |  |  |  |  |
Subscriptions | $ | 925 |  |  | $ | 996 |  |  | $ | 1,199 |
Professional services | 6,055 |  |  | 5,309 |  |  | 3,131 |
Operating expenses |  |  |  |  |
Sales and marketing | 10,842 |  |  | 9,152 |  |  | 5,426 |
Research and development | 12,486 |  |  | 12,523 |  |  | 5,224 |
General and administrative | 13,079 |  |  | 10,850 |  |  | 8,864 |
Total stock-based compensation expense | $ | 43,387 |  |  | $ | 38,830 |  |  | $ | 23,844 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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