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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation cost related to nonvested awards | $ 2,582 | $ 2,666 |  |
Dividends declared not paid on restricted stock units | 60 | 38 |  |
Proceeds from employee payroll withholdings | 588 | 811 |  |
RSUs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Fair value of restricted stock units vested and released | 3,397 | 4,364 |  |
Compensation cost related to nonvested awards | 1,856 | 2,466 |  |
Unrecognized compensation cost related to nonvested awards | $ 15,200 |  |  |
Expected weighted-average period to be recognized | 2 years 7 months 6 days |  |  |
Dividends declared not paid on restricted stock units | $ 247 |  |  | $ 274
RSUs | 2016-LTIP Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares available for issuable (in shares) | 1,814,244 |  |  |
RSUs | Directors |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation cost related to nonvested awards | $ 166 | 157 |  |
PSUs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Compensation cost related to nonvested awards | 726 | $ 200 |  |
Unrecognized compensation cost related to nonvested awards | $ 12,322 |  |  |
Expected weighted-average period to be recognized | 2 years |  |  |
Core return threshold percentages | 200.00% |  |  |
Award vesting, percentage | 100.00% | 75.00% | 175.00% |
PSUs | Executives and Other Officers and Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Criteria period | 3 years |  |  |
PSUs | Executives and Other Officers and Employees | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Core return threshold percentages | 0.00% |  |  |
PSUs | Executives and Other Officers and Employees | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Core return threshold percentages | 200.00% |  |  |
Employee Stock | ESPP |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares available for issuable (in shares) | 200,000 |  |  |
Purchase price percentage of subsequent offering periods | 95.00% |  |  |
Maximum number of shares per participant (in shares) | 725 |  |  |
Maximum worth of award per participant | $ 25 |  |  |
Shares issued under plan (in shares) | 15,152,000 | 21,566,000 |  |
Number of shares reserved for issuance (in shares) | 2,326,544 |  |  |

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