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Share-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award | The following table presents the effects of share-based compensation expense in the Condensed Consolidated Statements of Operations during the periods presented (in thousands):
| Three months ended March 31,
| 2023 |  | 2022
Cost of revenues | $ | 76 |  |  | $ | 84 |
Sales and marketing | 924 |  |  | 569 |
Research, development and engineering | 783 |  |  | 629 |
General and administrative | 6,619 |  |  | 5,435 |
Total share-based compensation | $ | 8,402 |  |  | $ | 6,717 |
Market-Based Restricted Stock Awards, Valuation Assumptions | The weighted-average fair values of market-based restricted stock units granted have been estimated utilizing the following assumptions:
| March 31, 2023 |  | March 31, 2022
Underlying stock price at valuation date | $ | 77.80 |  |  | $ | 99.32 |
Expected volatility | 32.0 | % |  | 36.7 | %
Risk-free interest rate | 4.1 | % |  | 1.8 | %
Restricted Stock and Restricted Stock Unit Award Activity | Restricted stock award activity for the three months ended March 31, 2023 is set forth below:
| Shares |  | Weighted-Average Grant-Date Fair Value
Nonvested at January 1, 2023 | 311,281 |  |  | $ | 59.90 |
Vested | (36,380) |  |  | $ | 100.41 |
Nonvested at March 31, 2023 | 274,901 |  |  | $ | 58.43 |
Restricted stock unit activity for the three months ended March 31, 2023 is set forth below:
| Number of Shares |  | Weighted-Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value
Outstanding at January 1, 2023 | 464,354 |  |  |  |  |
Granted | 439,220 |  |  |  |  |
Vested | (53,299) |  |  |  |  |
Canceled | (1,401) |  |  |  |  |
Outstanding at March 31, 2023 | 848,874 |  |  | 3.4 |  | $ | 66,508,434 |
Vested and expected to vest at March 31, 2023 | 705,218 |  |  | 3.2 |  | $ | 54,788,467 |

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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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