Share-Based Payments - Omnibus Share Plan and Formation Awards (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 17, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense recognition period (in years)		3 years 3 months 18 days
2017 Omnibus Share Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares authorized					10,300,000
Additional shares authorized	8,000,000.0
Shares available for grant		7,200,000
Formation Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting over period		10 years
Compensation expense recognition period (in years)		5 years
Unvested Shares
Beginning balance		1,007,513
Vested		(1,005,426)
Forfeited		(2,087)
Ending balance			1,007,513
Weighted Average Grant-Date Fair Value
Beginning balance		$ 8.80
Vested (in dollars per share)		8.81
Forfeited		$ 8.60
Ending balance			$ 8.80
Total-grant date fair value for vested awards		$ 8.9	$ 6.0	$ 6.9
Tranche One | Formation Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting (as a percent)		25.00%
Tranche Two | Formation Awards
Share-based Compensation Arrangement by Share-based Payment Award
Vesting (as a percent)		50.00%