Share-based Compensation - Restricted shares and performance shares (Details) - Non-vested restricted shares and performance shares shares in Thousands	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Number of Shares
Outstanding at the beginning of the period (in shares) | shares	2,083
Granted (in shares) | shares	896
Performance award adjustments (in shares) | shares	85
Vested (in shares) | shares	(600)
Forfeited (in shares) | shares	(23)
Outstanding at the end of the period (in shares) | shares	2,441
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 17.33
Granted (in dollars per share) | $ / shares	32.60
Performance award adjustments (in dollars per share) | $ / shares	14.03
Vested (in dollars per share) | $ / shares	15.53
Forfeited (in dollars per share) | $ / shares	17.53
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 23.26