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Stockholders' Equity - Stock Options and Restricted Stock (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) item $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ | $ 7,819 | $ 7,547 | $ 9,600 |
Weighted-average period over which unrecognized compensation cost is expected to be recognized | 10 months 24 days |  |  |
Dividends paid to date | $ | $ 0 |  |  |
Aggregate Intrinsic Value |  |  |  |
Restricted stock unit awards, Average Intrinsic Value | $ |  |  | 6,779 | $ 4,932
Shares repurchased to cover taxes from restricted stock award vesting (in shares) | shares | 195,518 |  |  |
Employee Stock Option |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ | $ 200 | 900 | 2,500 |
Total unrecognized pre-tax compensation expense related to nonvested stock option awards | $ | 29 |  |  |
Total grant date fair value of options vested during the period | $ | $ 600 | $ 1,900 | $ 3,300 |
Estimated fair values and assumptions for stock options granted |  |  |  |
Expected term |  |  | 4 years 6 months |
Expected dividend yield (as a percent) |  |  | 0.00% |
Options Outstanding |  |  |  |
Outstanding at beginning of period | shares | 429,960 | 615,307 | 915,224 |
Granted | shares | 0 | 0 | 47,280 |
Exercised | shares | (2,571) | (4,625) | (90,878) |
Forfeited | shares |  | (25,045) | (92,981) |
Cancelled/Expired | shares | (32,518) | (155,677) | (163,338) |
Outstanding at end of period | shares | 394,871 | 429,960 | 615,307 | 915,224
Weighted Average Exercise Price Per Share |  |  |  |
Outstanding at beginning of period | $ 40.74 | $ 43.25 | $ 39.33 |
Granted |  |  | 6.17 |
Exercised | 9.4 | 2.97 | 1.68 |
Forfeited |  | 47.54 | 36.28 |
Cancelled/Expired | 43.63 | 50.72 | 37.65 |
Outstanding at end of period | $ 40.7 | $ 40.74 | $ 43.25 | $ 39.33
Other information |  |  |  |
Options exercisable number of shares exercisable | shares | 386,990 | 386,457 | 435,363 |
Options exercisable, weighted-average exercise price | $ 41.36 | $ 41.53 | $ 43.83 |
Weighted average remaining contractual life (in years) | 2 years 9 months 18 days | 3 years 9 months 18 days | 4 years 8 months 12 days | 5 years
Options exercisable, weighted-average remaining contractual life | 2 years 9 months 18 days |  |  |
Aggregate Intrinsic Value, Options outstanding | $ | $ 309 | $ 223 |  | $ 2,068
Aggregate Intrinsic Value, Exercised | $ | 18 | $ 98 | $ 916 |
Aggregate Intrinsic Value, Options exercisable | $ | $ 238 |  | $ 164 |
Number of: |  |  |  |
Non vested options beginning of the year | shares | 43,503 | 179,944 |  |
Non-vested options end of the year | shares | 7,881 | 43,503 | 179,944 |
Vested options end of the year | shares | 386,990 | 386,457 |  |
Weighted-average grant date fair value of: |  |  |  |
Non-vested options beginning of the year | $ 13.57 | $ 16.24 |  |
Non-vested options end of the year | 4.23 | 13.57 | $ 16.24 |
Vested options end of the year | $ 16.52 | 16.51 |  |
Forfeited options during the year |  | $ 18.36 |  |
Employee Stock Option | Minimum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Vesting period (in years) | 3 years |  |  |
Term (in years) | 7 years |  |  |
Estimated fair values and assumptions for stock options granted |  |  |  |
Expected volatility (as a percent) |  |  | 59.20% |
Risk-free interest rate (as a percent) |  |  | 4.30% |
Fair value on the date of grant (in dollars per share) |  |  | $ 8.11 |
Employee Stock Option | Maximum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Vesting period (in years) | 4 years |  |  |
Term (in years) | 10 years |  |  |
2023 PSUs |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ | $ 500 | $ 500 |  |
2022 PSUs |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ |  | 400 | $ 300 |
2016 Plan | Time-Based Restricted Stock Units |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ | 5,900 | $ 5,100 | $ 5,800 |
Total unrecognized pre-tax compensation expense related to nonvested stock option awards | $ | $ 6,100 |  |  |
Weighted-average period over which unrecognized compensation cost is expected to be recognized | 1 year 9 months 18 days |  |  |
Units Outstanding |  |  |  |
Restricted stock unit awards outstanding at the beginning of the period (in shares) | shares | 589,142 | 590,542 | 259,147 |
Granted (in shares) | shares | 541,547 | 398,698 | 539,525 |
Vested (in shares) | shares | (281,917) | (270,651) | (123,528) |
Cancelled (in shares) | shares | (120,346) | (129,447) | (84,602) |
Restricted stock unit awards outstanding at the end of the period (in shares) | shares | 728,426 | 589,142 | 590,542 | 259,147
Weighted Average Grant Date Fair Value Per Unit |  |  |  |
Restricted stock unit awards outstanding at the beginning of the period (in dollars per share) | $ 16.35 | $ 19.42 | $ 42.32 |
Granted (in dollars per share) | 13.82 | 15.52 | 15.03 |
Vested (in dollars per share) | 17.38 | 20.18 | 43.2 |
Cancelled (in dollars per share) | 14.78 | 19.79 | 26.91 |
Restricted stock unit awards outstanding at the end of the period (in dollars per share) | $ 14.33 | $ 16.35 | $ 19.42 | $ 42.32
Aggregate Intrinsic Value |  |  |  |
Restricted stock unit awards, Average Intrinsic Value | $ | $ 12,478 | $ 8,425 |  |
2016 Plan | Time-Based Restricted Stock Units | Minimum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Vesting period (in years) | 1 year |  |  |
2016 Plan | Time-Based Restricted Stock Units | Maximum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Vesting period (in years) | 3 years |  |  |
2016 Plan | Performance-based stock-settled restricted stock units |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Stock-based compensation expense | $ | $ 1,200 | $ 900 | $ 500 |
Total unrecognized pre-tax compensation expense related to awards | $ | $ 1,300 |  |  |
Weighted-average period over which unrecognized compensation cost is expected to be recognized | 2 years |  |  |
Number of performance awards under share-based payment arrangement | item | 3 |  |  |
Units Outstanding |  |  |  |
Restricted stock unit awards outstanding at the beginning of the period (in shares) | shares | 198,232 | 155,618 | 54,317 |
Granted (in shares) | shares | 223,762 | 123,575 | 131,710 |
Vested (in shares) | shares | (44,162) | (13,842) | (4,407) |
Cancelled (in shares) | shares | (104,913) | (67,119) | (26,002) |
Restricted stock unit awards outstanding at the end of the period (in shares) | shares | 272,919 | 198,232 | 155,618 | 54,317
Payout percentage | 100.00% | 100.00% | 100.00% |
Weighted Average Grant Date Fair Value Per Unit |  |  |  |
Restricted stock unit awards outstanding at the beginning of the period (in dollars per share) | $ 18.93 | $ 25.05 | $ 50.22 |
Granted (in dollars per share) | 13.76 | 15.28 | 18.54 |
Vested (in dollars per share) | 27.31 | 42.7 | 12.31 |
Cancelled (in dollars per share) | 14.14 | 21.5 | 42.53 |
Restricted stock unit awards outstanding at the end of the period (in dollars per share) | $ 15.19 | $ 18.93 | $ 25.05 | $ 50.22
Aggregate Intrinsic Value |  |  |  |
Restricted stock unit awards, Average Intrinsic Value | $ | $ 4,675 | $ 2,785 |  | $ 1,034
Restricted stock unit awards deferred and unissued, Average Intrinsic Value | $ |  |  | $ 1,786 |
2016 Plan | Performance-based stock-settled restricted stock units | Minimum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Performance goals revenue change and adjusted EBITDA margin | 25.00% |  |  |
Units Outstanding |  |  |  |
Percentage to earn or vest the performance-based stock-settled restricted stock units | 50.00% |  |  |
2016 Plan | Performance-based stock-settled restricted stock units | Maximum |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Performance goals revenue change and adjusted EBITDA margin | 175.00% |  |  |
Units Outstanding |  |  |  |
Percentage to earn or vest the performance-based stock-settled restricted stock units | 150.00% |  |  |
2016 Plan | Tranche one | Performance-based stock-settled restricted stock units |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Award vesting percentage | 33.33% |  |  |
2016 Plan | Tranche one | 2023 PSUs |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Award vesting percentage | 33.33% |  |  |
2016 Plan | Tranche two | Performance-based stock-settled restricted stock units |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Award vesting percentage | 66.67% |  |  |
2016 Plan | Tranche two | 2023 PSUs |  |  |  |
Stock-based compensation, general disclosures. |  |  |  |
Award vesting percentage | 33.33% |  |  |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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