Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation and Cash-Based Incentive Compensation - Schedule of Outstanding Restricted Stock Units Issued to Eligible Employees (Details)

v3.10.0.1
Share-Based Compensation and Cash-Based Incentive Compensation - Schedule of Outstanding Restricted Stock Units Issued to Eligible Employees (Details) - Restricted Stock Units (RSUs) - shares
Jun. 30, 2018
Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 5,691,731 5,765,251
2018    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 3,698,748  
2019    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 1,992,983