Shareholders' Equity / Partners' Capital - Participating Preferred Shares (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Outstanding Shares (in shares)	9,200,000	9,200,000
Current Liquidation Value	$ 230,000	$ 230,000
Series G perpetual preferred shares
Class of Stock [Line Items]
Preferred shares, dividend rate (in percent)	5.875%
Outstanding Shares (in shares)	4,600,000	4,600,000
Current Liquidation Value	$ 115,000	$ 115,000
Series H perpetual preferred shares
Class of Stock [Line Items]
Preferred shares, dividend rate (in percent)	6.25%
Outstanding Shares (in shares)	4,600,000	4,600,000
Current Liquidation Value	$ 115,000	$ 115,000