Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Stock Options (Details)

v3.19.3.a.u2
Equity-Based Compensation - Stock Options (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Intrinsic Value    
Outstanding at the beginning of the period $ 12,470  
Outstanding at the end of the period $ 4,992 $ 12,470
Stock options    
Stock options    
Outstanding at the beginning of the period (in shares) 579,617  
Options forfeited (in shares) (4,250)  
Options expired (in shares) (107,734)  
Outstanding at the end of the period (in shares) 467,633 579,617
Vested or expected to vest (in shares) 467,633  
Exercisable (in shares) 467,633  
Weighted average exercise price    
Outstanding at the beginning of the period (in dollars per share) $ 50.55  
Options forfeited (in dollars per share) 50.18  
Outstanding at the end of the period (in dollars per share) 50.64 $ 50.55
Vested or expected to vest (in dollars per share) 50.64  
Exercisable (in dollars per share) $ 50.64  
Weighted average remaining contractual life    
Outstanding 5 years 18 days 5 years 9 months 21 days
Vested or expected to vest 5 years 18 days  
Exercisable 5 years 18 days  
Weighted-average assumptions used to calculate fair value of stock options granted    
Dividend yield (as a percent) 0.00%  
Additional disclosures    
Unamortized equity based compensation expense $ 0  
Stock options | Maximum    
Stock-based compensation    
Contractual life 10 years