Quarterly report pursuant to Section 13 or 15(d)

Benefit Plans - Summary of Restricted Stock Unit and Stock Award Activity (Details)

v3.10.0.1
Benefit Plans - Summary of Restricted Stock Unit and Stock Award Activity (Details) - Restricted Stock Units (RSUs) and Performance Shares
shares in Thousands
9 Months Ended
Sep. 30, 2018
$ / shares
shares
Shares  
Nonvested as of beginning of period (in shares) | shares 31,323
Granted (in shares) | shares 15,072
Vested (in shares) | shares (11,245)
Forfeited (in shares) | shares (870)
Nonvested as of end of period (in shares) | shares 34,280
Grant Date Fair Value Per Share  
Nonvested as of beginning of period (in dollars per share) | $ / shares $ 4.54
Granted (in dollars per share) | $ / shares 6.56
Vested (in dollars per share) | $ / shares 4.25
Forfeited (in dollars per share) | $ / shares 4.92
Nonvested as of end of period (in dollars per share) | $ / shares $ 5.48