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v3.22.2.2

Stock Based Compensation (Narrative) (Details) $ / shares in Units, $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 USD ($) d $ / shares shares | Sep. 30, 2021 USD ($) $ / shares shares | Dec. 31, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Issuance of common stock under employee stock purchase plan | $ | $ 5,235 | $ 4,232 |
Restricted Stock And Restricted Stock Unit (RSU) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 152,982 | 91,163 |
Restricted Stock And Restricted Stock Unit (RSU) | Board of Directors |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting periods | 1 year |  |
Restricted Stock And Restricted Stock Unit (RSU) | Chief Executive Officer |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting periods | 8 years |  |
Market-based Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 100,193 | 73,094 |
Trading days | d | 20 |  |
Trading days, lookback | d | 30 |  |
Weighted-average grant-date fair values of restricted stock awards granted (in usd per share) | $ / shares | $ 87.11 | $ 94.40 |
Weighted-average period to recognize compensation cost (in years) | 3 years |  |
Restricted Stock, Restricted Stock Unit (RSU), Market-based Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost related to non-vested awards granted | $ | $ 48,200 |  | $ 44,300
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 253,175 |  |
Weighted-average period to recognize compensation cost (in years) | 3 years 8 months 12 days |  |
ESPP |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Maximum issuance of common stock (in shares) | 2,000,000 |  |
Market value of common stock on the date of grant for incentive stock options | 85.00% |  |
Maximum earnings withheld by the employees | 15.00% |  |
Estimated forfeiture rate | 11.15% | 11.15% |
Issuance of shares under employee stock purchase plan (in shares) | 76,741 | 58,145 |
Number of shares available for issuance (in shares) | 1,218,950 |  |
Minimum | Restricted Stock And Restricted Stock Unit (RSU) | Senior Staff |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting periods | 4 years |  |
Maximum | Restricted Stock And Restricted Stock Unit (RSU) | Senior Staff |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting periods | 5 years |  |
2007 Stock Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Maximum issuance of common stock (in shares) | 4,500,000 |  |
Purchase price of common stock, percent | 85.00% |  |
Number of options outstanding (in shares) | 0 |  |
Number of stocks outstanding (in shares) | 0 |  |
2015 Stock Option Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Maximum issuance of common stock (in shares) | 4,200,000 |  |
Number of options outstanding (in shares) | 435,135 |  |
Number of stocks outstanding (in shares) | 526,656 |  |
2015 Stock Option Plan | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Market value of common stock on the date of grant for incentive stock options | 100.00% |  |

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