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Equity-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Based Compensation Assumptions
The following assumptions were used for the Monte Carlo model to determine the grant date fair value and associated equity-based compensation expense of the PSUs granted during the nine months ended September 30, 2018:
Risk-free interest rate
2.08% - 2.31%

Oasis volatility
72.88
%
Oasis initial value
$8.82
Oasis stock price on date of grant
$9.27