XML 101 R80.htm IDEA: XBRL DOCUMENT v3.19.1
STOCKHOLDERS' EQUITY - Incentive Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
 4 Months Ended 8 Months Ended 12 Months Ended
Apr. 06, 2017
Dec. 31, 2015
Dec. 31, 2016
Sep. 09, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
General and administrative              
Stock-based compensation              
Compensation expense recorded     $ 21,500   $ 15,300 $ 36,800  
Stock options              
Stock-based compensation              
Grant date weighted average price (in dollars per share)     $ 9.22   $ 8.34 $ 8.84 $ 9.22
Weighted average grant date fair value of grants     $ 6.07   $ 2.92 $ 4.36  
Number of Shares              
Outstanding at the beginning of the period (in shares)         6,735,903 5,319,400  
Granted (in shares)     5,319,400   1,206,800 1,790,605  
Exercised (in shares)       (41,667) 0 0
Forfeited (in shares)       (432,110) (374,102)  
Outstanding at the end of the period (in shares)     5,319,400   7,468,926 6,735,903 5,319,400
Weighted Average Exercise Price Per Share              
Granted (in dollars per share)     $ 9.22   $ 5.65 $ 7.72  
Exercised (in dollars per share)       7.75  
Forfeited (in dollars per share)       $ 8.68 $ 8.82  
Aggregate Intrinsic Value              
Outstanding at the beginning of the period         $ 29 $ 631  
Outstanding at the end of the period     $ 631     $ 29 $ 631
Weighted Average Remaining Contractual Term              
Outstanding at the end of the period     9 years 8 months 12 days   8 years 1 month 6 days 8 years 10 months 24 days  
Assumptions:              
Weighted average grant date fair value of grants     $ 6.07   $ 2.92 $ 4.36  
Stock price volatility (as a percent)     56.29%   52.08% 60.18%  
Risk free rate of return (as a percent)     1.34%   2.63% 1.94%  
Expected term     5 years   6 years 6 years  
Aggregate Intrinsic Value              
Exercised         $ 29    
Predecessor | General and administrative              
Stock-based compensation              
Compensation expense recorded       $ 4,900      
Predecessor | Stock options              
Stock-based compensation              
Grant date weighted average price (in dollars per share)   $ 17.80        
Number of Shares              
Outstanding at the beginning of the period (in shares)     4,860,133     4,860,133
Granted (in shares)       0      
Exercised (in shares)            
Forfeited (in shares)       (695,302)      
Cancelled (in shares)       4,164,831      
Outstanding at the end of the period (in shares)   4,860,133        
Weighted Average Exercise Price Per Share              
Granted (in dollars per share)            
Exercised (in dollars per share)            
Forfeited (in dollars per share)       21.17      
Cancelled (in dollars per share)       $ 17.23      
Weighted Average Remaining Contractual Term              
Outstanding at the end of the period   8 years 4 months 24 days          
Predecessor | Restricted Stock              
Number of Shares              
Granted other than options (in shares)       0      
2006 Long-Term Incentive Plan | Predecessor | Restricted Stock              
Number of Shares              
Unvested outstanding shares at the beginning of the period (in shares)       2,870,405     2,870,405
Vested (in shares)       (436,256)      
Accelerated vesting (in shares)       (1,917,072)      
Forfeited (in shares)       (517,077)      
Unvested outstanding shares at the end of the period (in shares)   2,870,405          
Weighted Average Grant Date fair Value Per Share              
Unvested outstanding shares at the beginning of the period (in dollars per share)       $ 7.55     $ 7.55
Vested (in dollars per share)       18.50      
Accelerated vesting (in dollars per share)       5.39      
Forfeited (in dollars per share)       $ 6.31      
Unvested outstanding shares at the end of the period (in dollars per share)   $ 7.55          
Aggregate Intrinsic Value              
Aggregate Intrinsic Value at the beginning of the period (in dollars)       $ 3,617     $ 3,617
Aggregate Intrinsic Value at the end of period (in dollars)   $ 3,617          
2016 Incentive Plan | Common Stock              
Stock-based compensation              
Aggregate number of shares available 19,000,000     10,000,000      
Maximum number of shares that remained reserved for issuance under the Plan         4,900,000 7,700,000  
Increase in shares available for issuance 9,000,000            
Number of calculation days for which shares will be available for issuance. 20 days            
2016 Incentive Plan | Stock options              
Stock-based compensation              
Weighted average remaining vesting period     1 year 8 months 12 days   10 months 24 days 1 year 2 months 12 days  
Weighted average grant date fair value of the shares granted     $ 32,300   $ 3,500 $ 7,800  
Proceeds from stock options         300    
Restricted stock              
Unrecognized compensation expense stock option     $ 26,500   $ 5,200 $ 13,000 26,500
2016 Incentive Plan | Stock options | Employee              
Stock-based compensation              
Share Based Compensation Arrangements by Share Based Payment Award Options Annual Vesting Percentage.           33.33%  
Vesting period           3 years  
Expiration term           10 years  
2016 Incentive Plan | Restricted Stock              
Stock-based compensation              
Weighted average remaining vesting period     10 months 24 days   1 year 1 month 6 days 1 year 4 months 24 days  
Unrecognized compensation expense other than options     $ 11,500   $ 6,100 $ 3,200 $ 11,500
Restricted stock              
Weighted average grant date fair value of the shares granted     $ 27,300   $ 12,700 $ 14,300  
Number of Shares              
Unvested outstanding shares at the beginning of the period (in shares)         745,507 1,738,077  
Granted (in shares)     2,991,202   2,326,961 2,022,432  
Vested (in shares)     (1,253,125)   (537,411) (2,516,647)  
Forfeited (in shares)         (262,164) (498,355)  
Unvested outstanding shares at the end of the period (in shares)     1,738,077   2,272,893 745,507 1,738,077
Weighted Average Grant Date fair Value Per Share              
Unvested outstanding shares at the beginning of the period (in dollars per share)         $ 7.05 $ 9.06  
Granted (in dollars per share)     $ 9.14   5.47 7.07  
Vested (in dollars per share)     9.24   5.89 8.39  
Forfeited (in dollars per share)         6.29 7.41  
Unvested outstanding shares at the end of the period (in dollars per share)     $ 9.06   $ 5.80 $ 7.05 $ 9.06
Aggregate Intrinsic Value              
Aggregate Intrinsic Value at the beginning of the period (in dollars)         $ 5,643 $ 16,234  
Aggregate Intrinsic Value at the end of period (in dollars)     $ 16,234   3,864 5,643 $ 16,234
Additional Disclosures              
Total fair value of shares vested     $ 11,600   $ 2,000 $ 16,100  
2016 Incentive Plan | Restricted Stock | Employee              
Stock-based compensation              
Percentage of awards other than options vesting on the annual anniversary date of the grant           33.33%  
Vesting period           3 years  
2016 Incentive Plan | Restricted Stock | Non-employee director              
Stock-based compensation              
Vesting period           6 months  
2016 Incentive Plan | Predecessor | Restricted Stock              
Additional Disclosures              
Total fair value of shares vested       $ 900