Shareholders' Equity/Partners' Capital (AOCI by component) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, value	$ 6,948,155
Ending balance, value	6,515,238
Total
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, value	(75,099)
Other comprehensive income (loss)	57,565
Ending balance, value	(17,534)
Accumulated other comprehensive (loss) income of nonconsolidated subsidiaries
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, value	(14,338)
Other comprehensive income (loss)	10,275
Ending balance, value	(4,063)
Interest rate swaps
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, value	(66,098)
Other comprehensive income (loss)	51,337
Ending balance, value	(14,761)
Other
Increase (Decrease) in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance, value	5,337
Other comprehensive income (loss)	(4,047)
Ending balance, value	$ 1,290