Equity Transactions - Narrative (Details) - USD ($) |
Sep. 30, 2019 |
Jun. 25, 2018 |
Jan. 18, 2018 |
Dec. 21, 2017 |
Mar. 31, 2016 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Stock repurchase program, authorized amount | $ 50,000,000.0 | ||||
| Stock repurchase program, remaining authorized amount | $ 44,800,000 | ||||
| Twenty Thirteen Equity Incentive Plan | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Number of shares authorized (in shares) | 11,000,000 | ||||
| Number of shares available for grant (in shares) | 7,070,298 | ||||
| Equity Incentive Plan, 2017 | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Number of shares authorized (in shares) | 2,000,000 | 6,500,000 | |||
| Employee Stock Option | Twenty Thirteen Equity Incentive Plan | |||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||
| Number of shares available for grant (in shares) | 2,097,846 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Number of shares authorized for issuance under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of stock repurchase plan authorized. No definition available.
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- Definition Amount remaining of a stock repurchase plan authorized. No definition available.
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