Share-Based Payments - SAR Activity (Details) - Stock option and Stock Appreciation Rights - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Number of Options
Outstanding at the beginning of the period (in shares)	5,774,076
Granted (in shares)	929,785
Exercised (in shares)	(47,601)
Forfeited (in shares)	(48,036)
Outstanding at the end of the period (in shares)	6,608,224	5,774,076
Exercisable (in shares)	4,280,012	3,651,824
Vested and expected to vest (in shares)	6,608,224	5,774,076
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 24.15
Granted (in dollars per share)	32.20
Exercised (in dollars per share)	18.21
Forfeited (in dollars per share)	30.84
Outstanding at the end of the period (in dollars per share)	25.28	$ 24.15
Exercisable (in dollars per share)	22.87	21.29
Vested and expected to vest (in dollars per share)	$ 25.28	$ 24.15
Weighted Average Remaining Contractual Term (in years)
Outstanding at the end of the period	6 years 3 months	5 years 11 months 12 days
Vested and expected to vest	6 years 3 months	5 years 11 months 12 days
Exercisable	4 years 9 months 14 days	4 years 6 months 10 days