Employee Incentive Plans - Summary of Tranche Vesting Levels (Details)	Dec. 31, 2020	Dec. 31, 2019
Threshold | TSR Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	0.00%
Threshold | Cash Flow Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	0.00%	0.00%
Threshold | TSR Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	50.00%
Threshold | Cash Flow Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	50.00%	50.00%
Target | TSR Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	100.00%
Target | Cash Flow Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	100.00%	100.00%
Maximum | TSR Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	200.00%
Maximum | Cash Flow Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of the Tranche CF Units	200.00%	200.00%