Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation - Restricted Stock and RSU Awards (Details)

v3.10.0.1
Equity-Based Compensation - Restricted Stock and RSU Awards (Details) - Restricted stock and restricted stock unit
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2018
USD ($)
$ / shares
shares
Number of shares  
Total granted and unvested at the beginning of the period (in shares) | shares 3,424,084
Granted (in shares) | shares 605,057
Vested (in shares) | shares (927,639)
Forfeited (in shares) | shares (267,890)
Total awarded and unvested at the end of the period (in shares) | shares 2,833,612
Weighted average grant date fair value  
Total granted and unvested at the beginning of the period (in dollars per share) | $ / shares $ 28.51
Granted (in dollars per share) | $ / shares 20.63
Vested (in dollars per share) | $ / shares 39.65
Forfeited (in dollars per share) | $ / shares 25.75
Total awarded and unvested at the end of the period (in dollars per share) | $ / shares $ 23.44
Aggregate intrinsic value  
Total awarded and unvested at the beginning of the period | $ $ 65,058
Total awarded and unvested at the end of the period | $ 60,498
Additional equity compensation to be recognized over the remaining period | $ $ 48,200
Weighted average period for recognizing unrecognized stock-based compensation expense 2 years 1 month 6 days