Equity Based Compensation - Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity based compensation
Equity based compensation expense	$ 31,606	$ 19,654	$ 13,529
AM LTIP RSUs
Equity based compensation
Equity based compensation expense	24,409	16,039	11,461
ROIC PSUs
Equity based compensation
Equity based compensation expense	6,266	2,770	1,158
Equity awards issued to directors
Equity based compensation
Equity based compensation expense	$ 931	$ 845	$ 910