Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - 2017 Plan (Details)

v3.8.0.1
Stock-Based Compensation - 2017 Plan (Details) - 2017 Omnibus Plan - Stock Option - USD ($)
$ / shares in Units, $ in Thousands
8 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding    
Beginning balance (shares) 1,738,527 1,798,438
Granted (shares) 538,908 1,051,496
Exercised (shares)   (32,366)
Forfeited and expired (shares) (478,997) (102,398)
Ending balance (shares) 1,798,438 2,715,170
Exercisable (shares)   827,210
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price    
Beginning balance (weighted average exercise price, usd per share) $ 7.80 $ 7.96
Granted (weighted average exercise price, usd per share) 8.05 13.70
Exercised (weighted average exercise price, usd per share)   8.04
Forfeited and expired (weighted average exercise price, usd per share) 7.49 7.98
Ending balance (weighted average exercise price, usd per share) $ 7.96 10.18
Exercisable (weighted average exercise price, usd per share)   $ 8.02
Vested or expected to vest (shares)   2,064,450
Vested or expected to vest (weighted average exercise price)   $ 10.79
Vested or expected to vest (weighted average contractual term)   8 years 10 months 2 days
Vested or expected to vest (aggregate intrinsic value)   $ 12,004
Exercisable (weighted average contractual term)   8 years 4 months 2 days
Exercisable (aggregate intrinsic value)   $ 6,975