Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation and Cash-Based Incentive Compensation - Summary of Share Activity Related to Restricted Stock Units (Details)

v3.4.0.3
Share-Based Compensation and Cash-Based Incentive Compensation - Summary of Share Activity Related to Restricted Stock Units (Details) - Restricted Stock Units (RSUs) - $ / shares
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Nonvested, beginning of period 3,474,079  
Forfeited (46,293)  
Nonvested, end of period 3,427,786  
Weighted Average Grant Date Value $ 7.43 $ 7.42
Weighted Average Grant Date Fair Value, Forfeited $ 6.71