Shareholders' Equity/Partners' Capital Shareholders' Equity/Partners' Capital - AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	$ 7,293,212	$ 5,090,892	$ 7,310,978	$ 5,107,883
Other comprehensive income (loss)	73	(26,681)	(42,413)	(43,419)
Amounts reclassified from AOCI				(2,311)
Ending balance, value	6,928,909	7,496,144	6,928,909	7,496,144
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(82,719)	(11,385)	(40,233)	7,664
Ending balance, value	(82,646)	(38,066)	(82,646)	(38,066)
Pro Rata Share Of Non Consolidated Subsidiaries Oci [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	12	(43)	4	3,253
Other comprehensive income (loss)	0	25	8	(960)
Amounts reclassified from AOCI				(2,311)
Ending balance, value	12	(18)	12	(18)
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(81,603)	(5,270)	(36,126)	11,759
Other comprehensive income (loss)	78	(28,515)	(45,399)	(45,544)
Amounts reclassified from AOCI				0
Ending balance, value	(81,525)	(33,785)	(81,525)	(33,785)
Other Changes In Accumulated Comprehensive Income Loss [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(1,128)	(6,072)	(4,111)	(7,348)
Other comprehensive income (loss)	(5)	1,809	2,978	3,085
Amounts reclassified from AOCI				0
Ending balance, value	$ (1,133)	$ (4,263)	$ (1,133)	$ (4,263)

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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