Share-Based Compensation Expense - Summary of Unit Activity related to RSUs (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares shares
RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning Balance | shares	7,148,416	[1]
Granted | shares	4,705,544	[1]
Vested | shares	(252,041)	[1]
Forfeited | shares	(323,181)	[1]
Ending Balance | shares	11,278,738	[1]
Weighted Average Grant Date Fair Value Per Unit, Beginning Balance | $ / shares	$ 12.27
Weighted Average Grant Date Fair Value Per Unit, Granted | $ / shares	9.12
Weighted Average Grant Date Fair Value Per Unit, Vested | $ / shares	9.76
Weighted Average Grant Date Fair Value Per Unit, Forfeited | $ / shares	12.64
Weighted Average Grant Date Fair Value Per Unit, Ending Balance | $ / shares	$ 10.98
Performance-based RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning Balance | shares	16,743,113	[1]
Granted | shares	7,905,475	[1]
Forfeited | shares	(603,204)	[1]
Ending Balance | shares	24,045,384	[1]
Weighted Average Grant Date Fair Value Per Unit, Beginning Balance | $ / shares	$ 11.20
Weighted Average Grant Date Fair Value Per Unit, Granted | $ / shares	10.99
Weighted Average Grant Date Fair Value Per Unit, Forfeited | $ / shares	11.93
Weighted Average Grant Date Fair Value Per Unit, Ending Balance | $ / shares	$ 11.05

[1] These share totals include both unvested shares and restricted stock units.