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Equity Incentive Awards - Narratives (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Fair value of shares issued |  | $ 3,300 |  |  |
Options issued (in shares) | 16,185 |  | 16,185 | 16,090 |
Options issued (in usd per share) | $ 68.74 |  | $ 68.74 | $ 66.81 |
Compensation expense related to incentive plans |  |  | $ 10,900 | $ 11,500 | $ 10,500
Options forfeited (in shares) |  |  | 0 | 0 | 0
Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting period (in years) |  |  | 3 years 6 months |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Share based compensation expense to be recognized |  |  | $ 11,600 |  |
Period for recognition of cost not recognized (in years) |  |  | 1 year 9 months 18 days |  |
2014 Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Options available for grant (in shares) |  |  | 5,350,503 |  |
2014 Awards | Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Contractual term (in years) |  |  | 10 years |  |
Shares issued (shares) | 58,192 | 104,734 |  |  |
Shares categorized as vesting (in percentage) |  | 50.00% |  |  |
Vesting period (in years) |  | 3 years |  |  |
Fair value of shares issued | $ 4,000 |  |  |  |
Shares categorized as performance based (in percentage) |  | 50.00% |  |  |
2014 Awards | Restricted Stock | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting period (in years) |  | 3 years 6 months |  |  |
2014 Awards | Restricted Stock | Tranche One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Award vesting rights (in percentage) |  |  | 33.33% |  |
2014 Awards | Restricted Stock | Tranche Two |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Award vesting rights (in percentage) |  |  | 33.33% |  |
2014 Awards | Restricted Stock | Tranche Three |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Award vesting rights (in percentage) |  |  | 33.33% |  |
2014 Awards | Performance Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Shares issued (shares) |  | 17,454 |  |  |
Fair value of shares issued |  | $ 1,100 |  |  |

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