Equity - Class B Common Stock (Detail) - Class B Common Stock - shares |
1 Months Ended | 3 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2019 |
Jan. 31, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Class Of Stock [Line Items] | ||||||
| Common stock conversion date | 2019-03 | |||||
| Common stock, shares outstanding | 4,918,545 | 4,918,545 | 4,942,000 | 4,934,103 | 5,059,000 | |
| Cancellation of Class B common stock upon conversion of Class B units to Class A common stock | 17,000 | 117,000 | ||||
| Resale And Registration Rights Agreement | ||||||
| Class Of Stock [Line Items] | ||||||
| Cancellation of Class B common stock upon conversion of Class B units to Class A common stock | (17,074) | |||||
| Neosho | ||||||
| Class Of Stock [Line Items] | ||||||
| Common stock issuance date | 2019-01 | |||||
| Issuance of Class B common stock in connection with the Neosho Acquisition | 1,516 | |||||
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- Definition Common stock conversion month and year. No definition available.
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- Definition Common stock issuance period month and year. No definition available.
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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 of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of stock issued during the period pursuant to acquisitions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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