Shareholders' Equity/Partners' Capital (AOCI by Component) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	$ 6,650,813	$ 6,568,317	$ 6,515,238	$ 6,948,155
Ending balance, value	6,691,274	6,579,825	6,691,274	6,579,825
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	73,300	(51,437)	(17,534)	(75,099)
Other comprehensive income (loss)	111,878	6,258	202,712	29,920
Ending balance, value	185,178	(45,179)	185,178	(45,179)
Accumulated other comprehensive income (loss) of nonconsolidated subsidiaries
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	9,897	(9,279)	(4,063)	(14,338)
Other comprehensive income (loss)	5,124	1,322	19,084	6,381
Ending balance, value	15,021	(7,957)	15,021	(7,957)
Change in fair value of interest rate swaps and other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	68,858	(45,905)	(14,761)	(66,098)
Other comprehensive income (loss)	117,219	5,360	200,838	25,553
Ending balance, value	186,077	(40,545)	186,077	(40,545)
Other
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(5,455)	3,747	1,290	5,337
Other comprehensive income (loss)	(10,465)	(424)	(17,210)	(2,014)
Ending balance, value	$ (15,920)	$ 3,323	$ (15,920)	$ 3,323