Share-Based Compensation Expense - Summary of Unit Activity related to RSUs (Details)	6 Months Ended
	Jun. 30, 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	4,809,866	[1]
Vested | shares	(341,745)	[1]
Forfeited | shares	(684,059)	[1]
Ending Balance | shares	10,932,478	[1]
Weighted Average Grant Date Fair Value Per Unit, Beginning Balance | $ / shares	$ 12.27
Weighted Average Grant Date Fair Value Per Unit, Granted | $ / shares	9.07
Weighted Average Grant Date Fair Value Per Unit, Vested | $ / shares	9.90
Weighted Average Grant Date Fair Value Per Unit, Forfeited | $ / shares	11.96
Weighted Average Grant Date Fair Value Per Unit, Ending Balance | $ / shares	$ 10.94
Performance-based RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning Balance | shares	16,743,113	[1],[2]
Granted | shares	10,009,102	[1],[2]
Forfeited | shares	(1,225,719)	[1],[2]
Ending Balance | shares	25,526,496	[1],[2]
Weighted Average Grant Date Fair Value Per Unit, Beginning Balance | $ / shares	$ 11.20
Weighted Average Grant Date Fair Value Per Unit, Granted | $ / shares	11.30
Weighted Average Grant Date Fair Value Per Unit, Forfeited | $ / shares	11.99
Weighted Average Grant Date Fair Value Per Unit, Ending Balance | $ / shares	$ 11.14

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

[2] PRSUs granted includes both new grants in the period as well as adjustments in the period to existing grants to account for the expected level of achievement of the performance-based vesting requirements.