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Stock Based Compensation - Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation |  | $ 3,714 | $ 4,296 | $ 9,915 | $ 17,128 |
2014 Omnibus Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares approved for issuance (in shares) |  | 2,900,000 |  | 2,900,000 |  |
2014 Omnibus Incentive Plan | Restricted Stock Awards (RSAs) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Total unrecognized compensation cost |  | $ 2,500 |  | $ 2,500 |  |
Remaining period to recognize cost |  |  |  | 1 year 6 months 21 days |  |
2014 Omnibus Incentive Plan | Restricted Stock Awards (RSAs) | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 4 years |  |
2014 Omnibus Incentive Plan | Restricted stock units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Total unrecognized compensation cost |  | 9,308 |  | $ 9,308 |  |
Remaining period to recognize cost |  |  |  | 3 years 10 days |  |
2014 Omnibus Incentive Plan | Restricted stock units | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 4 years |  |
2014 Omnibus Incentive Plan | Restricted stock units | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 5 years |  |
2014 Omnibus Incentive Plan | Performance stock units - market based |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Total unrecognized compensation cost |  | 6,665 |  | $ 6,665 |  |
Remaining period to recognize cost |  |  |  | 2 years 3 months 29 days |  |
2014 Omnibus Incentive Plan | Performance stock units - market based | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 3 years |  |
Stock based compensation, award vesting percentage |  |  |  | 0.00% |  |
2014 Omnibus Incentive Plan | Performance stock units - market based | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 5 years |  |
Stock based compensation, award vesting percentage |  |  |  | 175.00% |  |
Stock based compensation, award vesting percentage, potential multiplier |  |  |  | 200.00% |  |
2014 Omnibus Incentive Plan | Performance Based Performance Stock Units (Performance Based PSUs) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 3 years |  |
Total unrecognized compensation cost |  | 0 |  | $ 0 |  |
Stock based compensation, award vesting percentage | 142.00% |  |  |  |  |
Stock based compensation expense recognized |  | 0 | $ 298 | $ 0 | $ 5,433 |
2014 Omnibus Incentive Plan | Performance Based Performance Stock Units (Performance Based PSUs) | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting percentage |  |  |  | 0.00% |  |
2014 Omnibus Incentive Plan | Performance Based Performance Stock Units (Performance Based PSUs) | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting percentage |  |  |  | 200.00% |  |
2014 Omnibus Incentive Plan | Stock options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock based compensation, award vesting period |  |  |  | 4 years |  |
Remaining period to recognize cost |  |  |  | 3 years 1 month 9 days |  |
Employees stock options contractual terms |  |  |  | 10 years |  |
Total unrecognized compensation cost |  | $ 1,462 |  | $ 1,462 |  |
2019 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock reserved for issuance (in shares) |  |  |  |  |  | 2,500,000
Purchase price of common stock, percentage |  |  |  |  |  | 85.00%
Offering period |  |  |  |  |  | 6 months
Shares issued under ESPP during period (in shares) |  |  |  | 37,909 | 24,516 |

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