Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Schedule of Activity Related to PSAs, PSUs, and RSUs (Details)

v3.10.0.1
Stock-Based Compensation - Schedule of Activity Related to PSAs, PSUs, and RSUs (Details)
12 Months Ended
Dec. 31, 2018
$ / shares
shares
PSAs and PSUs  
Number of Shares (in thousands)  
Outstanding at beginning of period (in shares) | shares 892,700
Granted (in shares) | shares 354,700
Vested (in shares) | shares 0
Forfeited (in shares) | shares (144,900)
Outstanding at end of period (in shares) | shares 1,102,500
Weighted-Average Grant-Date Fair Value (per share)  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 13.93
Granted (in dollars per share) | $ / shares 13.94
Vested (in dollars per share) | $ / shares 0.00
Forfeited (in dollars per share) | $ / shares 14.27
Outstanding at end of period (in dollars per share) | $ / shares $ 13.88
RSUs  
Number of Shares (in thousands)  
Outstanding at beginning of period (in shares) | shares 231,600
Granted (in shares) | shares 308,300
Vested (in shares) | shares (137,000)
Forfeited (in shares) | shares (78,300)
Outstanding at end of period (in shares) | shares 324,600
Weighted-Average Grant-Date Fair Value (per share)  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 15.77
Granted (in dollars per share) | $ / shares 16.12
Vested (in dollars per share) | $ / shares 15.32
Forfeited (in dollars per share) | $ / shares 16.79
Outstanding at end of period (in dollars per share) | $ / shares $ 16.13