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EMPLOYEE BENEFIT AND DEFERRED COMPENSATION PLANS (Tables) | 12 Months Ended
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Dec. 31, 2022
Compensation plans: |
Schedule of stock appreciation rights activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Units |  | Range of
​ |  | Vested |  | Nonvested |  | Total |  | Grant Values
Outstanding at December 31, 2019 |  | 6,207 |  | 6,069 |  | 12,276 | ​ | $ | 0.92–$3.73
Granted |  | 21 |  | 681 |  | 702 | ​ | $ | 4.70
Exercised |  | (877) |  | — |  | (877) | ​ | $ | 1.31–$2.50
Forfeited |  | — |  | (63) |  | (63) | ​ | $ | 2.50
Vested |  | 1,410 |  | (1,410) |  | — | ​ |  |
Converted |  | (6,761) |  | (5,277) |  | (12,038) | ​ | $ | 0.92–$4.70
Outstanding at December 31, 2020 |  | — |  | — |  | — | ​ | ​ | ​
​
Schedule of valuation assumptions | ​
​ | ​ | ​ | ​ | ​
Fair market value of common stock | ​ | $ | 19.00 | ​
Volatility |  |  | 36.7 | %
Expected term (years) |  |  | 6.5 | ​
Expected dividend yield |  |  | — | %
Risk-free interest rate |  |  | 0.4 | %
​
Schedule of ESPP valuation assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Offering Period Ending
​ | 5/31/2023 | ​ | 11/30/2022 | ​ | 5/31/2022 | ​ | 11/30/2021 | ​ | 5/31/2021 | ​
Fair market value of common stock | $ | 17.21 | ​ | $ | 11.16 | ​ | $ | 17.38 | ​ | $ | 19.89 | ​ | $ | 25.83 | ​
Volatility |  | 46.4 | % |  | 35.4 | % |  | 37.3 | % |  | 35.1 | % | ​ | 35.1 | %
Expected term (years) |  | 0.5 | ​ |  | 0.5 | ​ |  | 0.5 | ​ |  | 0.5 | ​ | ​ | 0.5 | ​
Expected dividend yield |  | - | % |  | - | % |  | - | % |  | - | % | ​ | - | %
Risk-free interest rate |  | 4.7 | % |  | 1.6 | % |  | 0.1 | % |  | 0.1 | % | ​ | 0.1 | %
​
Schedule of stock-based compensation cost related to incentive awards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | For the year ended December 31,
​ | 2022 |  | 2021 |  | 2020
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock-based compensation expense: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock options | $ | 7,081 | ​ | $ | 17,533 | ​ | $ | 143,123
RSUs |  | 9,286 | ​ |  | 2,964 | ​ |  | 171
RSAs |  | 2,768 | ​ |  | 5,126 | ​ |  | 4,284
ESPP | ​ | 594 | ​ | ​ | 537 | ​ | ​ | 326
Total stock-based compensation expense | $ | 19,729 | ​ | $ | 26,160 | ​ | $ | 147,904
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
Schedule of stock based compensation cost in consolidated statement of operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | For the year ended December 31,
​ | 2022 |  | 2021 |  | 2020
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock-based compensation expense: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of revenues, software subscriptions | $ | 2,090 | ​ | $ | 2,336 |  | $ | 14,663
Cost of revenues, services |  | 1,433 | ​ |  | 2,648 |  |  | 21,472
Research and development |  | 1,798 | ​ |  | 2,620 |  |  | 14,694
Selling and marketing |  | 6,284 | ​ |  | 6,371 |  |  | 29,551
General and administrative |  | 8,124 | ​ |  | 12,185 | ​ | ​ | 67,524
Total stock-based compensation expense | $ | 19,729 | ​ | $ | 26,160 | ​ | $ | 147,904
​
Amended Options |
Compensation plans: |
Schedule of Option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​
​ | ​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Aggregate
​ | ​ | ​ | ​ | ​ | Exercise | ​ | Contractual | ​ | Intrinsic
Amended Option Activity | ​ | Units | ​ | ​ | Price | ​ | Life (Years) | ​ | Value
Outstanding at December 31, 2019 | ​ | 3,849 | ​ | $ | 0.19 | ​ | * | ​ | $ | 17,344
Exercised through June 30 | ​ | (173) | ​ | $ | 0.30 | ​ | ​ | ​ | $ | 759
Amendment and exchange of options | ​ | (3,676) | ​ | $ | 0.19 | ​ | * | ​ | $ | 69,177
Outstanding at December 31, 2020 | ​ | — | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
*Options have indefinite contractual lives | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
Stock options |
Compensation plans: |
Schedule of Option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​
​ | ​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Aggregate
​ | ​ | ​ | ​ | ​ | Exercise | ​ | Contractual | ​ | Intrinsic
2020 Plan Option Activity | ​ | Units | ​ | ​ | Price | ​ | Life (Years) | ​ | Value
Outstanding at January 1, 2020 | ​ | — | ​ | ​ | — | ​ | ​ | ​ | ​ | ​
Issued in connection with Converted SARs | ​ | 12,038 | ​ | $ | 2.76 | ​ | ​ | ​ | ​ | ​
Issued in connection with Amended Options | ​ | 3,676 | ​ | $ | 0.19 | ​ | * | ​ | ​ | ​
Total options granted | ​ | 15,714 | ​ | $ | 2.16 | ​ | ​ | ​ | ​ | ​
Forfeited | ​ | (156) | ​ | $ | 3.29 | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (3,682) | ​ | $ | 1.21 | ​ | ​ | ​ | ​ | ​
Outstanding at December 31, 2020 | ​ | 11,876 | ​ | $ | 2.44 | ​ | 5.3 | ​ | $ | 384,883
Granted | ​ | 779 | ​ | $ | 23.06 | ​ | ​ | ​ | ​ | ​
Forfeited | ​ | (292) | ​ | $ | 4.06 | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (2,863) | ​ | $ | 2.04 | ​ | ​ | ​ | ​ | ​
Outstanding at December 31, 2021 | ​ | 9,500 | ​ | $ | 4.20 | ​ | 5.2 | ​ | $ | 110,843
Forfeited | ​ | (100) | ​ | $ | 5.31 | ​ | ​ | ​ | ​ | ​
Expired | ​ | (1) | ​ | $ | 32.16 | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (891) | ​ | $ | 2.70 | ​ | ​ | ​ | ​ | ​
2020 Plan options outstanding at December 31, 2022 | ​ | 8,508 | ​ | $ | 4.34 | ​ | 4.3 | ​ | $ | 86,514
2020 Plan options exercisable at December 31, 2022 | ​ | 6,125 | ​ | $ | 2.95 | ​ | 3.4 | ​ | $ | 70,785
*Amended Options have indefinite contractual lives | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​
Schedule of outstanding, vested and exercisable | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Options Outstanding | ​ | Options Vested and Exercisable
​ |  | ​ |  | Weighted |  | ​ |  | Weighted
​ | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average
Exercise Prices | ​ | Units | ​ | Life (Years) | ​ | Units | ​ | Life (Years)
$0.15 to $0.71 |  | 1,698 | ​ | — | ​ | 1,698 | ​ | —
$2.15 |  | 326 | ​ | 2.1 | ​ | 326 | ​ | 2.1
$2.50 |  | 2,156 | ​ | 3.5 | ​ | 2,156 | ​ | 3.5
$2.67 |  | 409 | ​ | 4.2 | ​ | 409 | ​ | 4.2
$3.17 |  | 988 | ​ | 5.3 | ​ | 237 | ​ | 5.4
$3.73 | ​ | 1,514 | ​ | 6.8 | ​ | 737 | ​ | 6.8
$4.70 | ​ | 658 | ​ | 7.1 | ​ | 316 | ​ | 7.1
$18.47 | ​ | 213 | ​ | 8.9 | ​ | 53 | ​ | 8.9
$18.96 | ​ | 235 | ​ | 8.6 | ​ | 105 | ​ | 8.6
$19.00 |  | 66 | ​ | 8.7 | ​ | 17 | ​ | 8.7
$32.16 |  | 245 | ​ | 8.2 | ​ | 71 | ​ | 7.4
​ |  | 8,508 | ​ | ​ |  | 6,125 | ​ | ​
​
Schedule of valuation assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Option Valuation Period | ​
​ | ​ | Q4 2021 |  |  | Q3 2021 |  | ​ | Q3 2021 |  |  | Q2 2021 |  |  | Q1 2021 |
Fair market value of common stock | ​ | $ | 18.47 | ​ |  | $ | 18.96 | ​ | ​ | $ | 19.00 | ​ |  | $ | 17.66 | ​ |  | $ | 32.16 | ​
Volatility |  |  | 37.4 | % |  |  | 37.1 | % | ​ |  | 37.1 | % |  |  | 36.8 | % |  |  | 36.8 | %
Expected term (years) |  |  | 5.0 | ​ | ​ |  | 5.0 | ​ | ​ |  | 5.0 | ​ | ​ |  | 6.0 | ​ | ​ |  | 6.0 | ​
Expected dividend yield |  |  | — | % | ​ |  | — | % | ​ |  | — | % | ​ |  | — | % | ​ |  | — | %
Risk-free interest rate |  |  | 1.3 | % | ​ |  | 0.8 | % | ​ |  | 0.9 | % | ​ |  | 0.4 | % | ​ |  | 0.4 | %
​
Restricted Stock Units |
Compensation plans: |
Schedule of restricted activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​
​ | ​ | ​ | ​ | Average | ​
​ | ​ | ​ | ​ | Grant Date Fair | ​
​ | ​ | Units | ​ | Value Per Share | ​
Outstanding at January 1, 2020 |  | — | ​ | ​ | ​ | ​
Granted |  | 101 | ​ | $ | 23.80 | ​
Outstanding at December 31, 2020 | ​ | 101 | ​ | ​ | 23.80 | ​
Granted | ​ | 478 | ​ | ​ | 27.07 | ​
Vested |  | (15) | ​ | ​ | 29.67 | ​
Forfeited |  | (34) | ​ | ​ | 25.18 | ​
Outstanding at December 31, 2021 | ​ | 530 | ​ | $ | 26.49 | ​
Granted | ​ | 2,240 | ​ | ​ | 13.55 | ​
Vested | ​ | (68) | ​ | ​ | 21.96 | ​
Forfeited | ​ | (140) | ​ | ​ | 15.59 | ​
Outstanding at December 31, 2022 | ​ | 2,562 | ​ | $ | 15.90 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Restricted Stock Awards |
Compensation plans: |
Schedule of restricted activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​
​ | ​ | ​ | ​ | Average | ​
​ | ​ | ​ | ​ | Grant Date Fair | ​
​ | ​ | Units | ​ | Value Per Share | ​
Outstanding at January 1, 2020 |  | — | ​ | ​ | ​ | ​
Granted |  | 694 | ​ | $ | 19.00 | ​
Vested |  | (21) | ​ |  | 19.00 | ​
Forfeited |  | (3) | ​ |  | 19.00 | ​
Outstanding at December 31, 2020 | ​ | 670 | ​ | ​ | 19.00 | ​
Granted | ​ | 59 | ​ | ​ | 17.66 | ​
Vested | ​ | (363) | ​ | ​ | 19.00 | ​
Forfeited | ​ | (40) | ​ | ​ | 19.00 | ​
Outstanding at December 31, 2021 | ​ | 326 | ​ | $ | 18.76 | ​
Granted | ​ | 106 | ​ | ​ | 9.92 | ​
Vested | ​ | (188) | ​ | ​ | 18.58 | ​
Forfeited | ​ | (9) | ​ | ​ | 19.00 | ​
Outstanding at December 31, 2022 | ​ | 235 | ​ | $ | 14.91 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​

X
- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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