Equity-Based Compensation (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2018 |
|
| Equity-Based Compensation (Textual) | ||
| Compensation expense | $ 230,000 | |
| Unrecognized compensation costs | $ 4,600,000 | |
| Recognized over a weighted-average period | 2 years 10 months 25 days | |
| Equity-based compensation liability | $ 357,000 | $ 21,000 |
| Redeemable Class B Units [Member] | ||
| Equity-Based Compensation (Textual) | ||
| Compensation expense | 2,600,000 | |
| Unrecognized compensation costs | $ 2,900,000 | |
| Recognized over a weighted-average period | 1 year 10 months 25 days | |
| Initial public offering price | $ 17.00 | |
| January and February 2019 [Member] | ||
| Equity-Based Compensation (Textual) | ||
| The grant date fair value of awards | $ 4,800,000 |