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Share-Based Compensation - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Repurchase of common stock for employee tax withholding obligations amount | $ 1,059 | $ 2,905 |
2017 Plan |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Useful Term of the plan | 10 years |  |
Common stock shares issuable | 1,750,000 |  |
Shares available for grant | 1,505,330 |  |
2007 Plan |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Award vesting period | 3 years |  |
2007 Plan | Performance Unit Incentive Plan (“PUP”) |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Shares available for grant | 0 |  |
Awards with grant date fair value during the period | $ 4,800 |  |
Stock value payable | 1,800 |  |
Liability awards recorded | 400 |  | $ 5,300
Payments to employees | $ 2,600 |  | 5,600
Paid to employees as shares |  |  | $ 3,400
Repurchase of common stock for employee tax withholding obligations amount, shares |  |  | 25,771
Repurchase of common stock for employee tax withholding obligations amount |  |  | $ 1,500
2007 Plan | Restricted Stock |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Repurchase of common stock for employee tax withholding obligations amount, shares | 17,674 | 24,067 |
Repurchase of common stock for employee tax withholding obligations amount | $ 1,100 | $ 1,400 |
Unamortized cost | $ 4,400 |  |
Recognition period of unrecognized cost | 1 year 9 months 18 days |  |
2007 Plan | Restricted Stock Units |  |  |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] |  |  |
Payments to employees | $ 200 | $ 300 |
Liabilities related to restricted stock | $ 100 |  | $ 400

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- Definition Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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