Consolidated Statement of Capital (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income	$ 88,172	$ 105,987	$ 186,660	$ 302,803
Other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	(1,649)	481	(3,141)	1,491
Contributions from partners	1,428	10,446	3,205	10,446
Issuance of exchangeable operating partnership units	20,000		20,000
Distributions to partners	(941)	(2,705)	(1,980)	(3,775)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,105	4,366	8,924	8,574
Total Partners' Capital [Member]
Net income	86,782	104,796	184,063	300,024
Other comprehensive income
Amounts reclassified from accumulated other comprehensive income (loss)	(1,477)	409	(2,794)	1,335
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,105	4,366	8,924	8,574
Partnership Interest [Member]
Beginning Balance	6,139,435	6,205,692	6,178,039	6,109,932
Net income	88,172	105,987	186,660	302,803
Other comprehensive income
Other comprehensive income before reclassification	5,342	4,213	2,798	12,427
Amounts reclassified from accumulated other comprehensive income (loss)	(1,649)	481	(3,141)	1,491
Contributions from partners	1,428	10,446	3,205	10,446
Issuance of exchangeable operating partnership units	20,000		20,000
Distributions to partners	(112,788)	(111,052)	(225,656)	(219,567)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,105	4,366	8,924	8,574
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company		(75,419)	(20,006)	(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(10)	61,284	(10)	61,284
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	(249)	137	(7,027)	(5,836)
Ending Balance	6,143,786	6,206,135	6,143,786	6,206,135
Partnership Interest [Member] | Total Partners' Capital [Member]
Beginning Balance	6,091,732	6,168,203	6,131,474	6,072,818
Net income	87,332	105,248	185,033	301,339
Other comprehensive income
Other comprehensive income before reclassification	4,918	3,760	2,591	11,334
Amounts reclassified from accumulated other comprehensive income (loss)	(1,487)	412	(2,809)	1,342
Issuance of exchangeable operating partnership units	20,000		20,000
Distributions to partners	(111,847)	(108,347)	(223,676)	(215,792)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,105	4,366	8,924	8,574
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company		(75,419)	(20,006)	(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(10)	61,284	(10)	61,284
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	(249)	137	(7,027)	(5,836)
Ending Balance	6,094,494	6,159,644	6,094,494	6,159,644
Partnership Interest [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance	3,927	(1,764)	7,560	(10,227)
Other comprehensive income
Other comprehensive income before reclassification	4,886	3,743	2,570	11,280
Amounts reclassified from accumulated other comprehensive income (loss)	(1,477)	409	(2,794)	1,335
Ending Balance	7,336	2,388	7,336	2,388
Partnership Interest [Member] | Noncontrolling Interests In Limited Partners Interest In Consolidated Partnerships [Member]
Beginning Balance	47,703	37,489	46,565	37,114
Net income	840	739	1,627	1,464
Other comprehensive income
Other comprehensive income before reclassification	424	453	207	1,093
Amounts reclassified from accumulated other comprehensive income (loss)	(162)	69	(332)	149
Contributions from partners	1,428	10,446	3,205	10,446
Distributions to partners	(941)	(2,705)	(1,980)	(3,775)
Ending Balance	49,292	46,491	49,292	46,491
Partnership Interest [Member] | General Partner Preferred and Common Units [Member]
Beginning Balance	6,053,394	6,134,091	6,089,425	6,047,598
Net income	86,782	104,796	184,063	300,024
Other comprehensive income
Distributions to partners	(111,145)	(107,885)	(222,492)	(214,855)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,105	4,366	8,924	8,574
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company		(75,419)	(20,006)	(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs	(10)	61,284	(10)	61,284
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	(249)	137	(7,027)	(5,836)
Common units exchanged for common stock of Parent Company		1,275		1,275
Ending Balance	6,032,877	6,122,645	6,032,877	6,122,645
Partnership Interest [Member] | Limited Partner [Member]
Beginning Balance	34,411	35,876	34,489	35,447
Net income	550	452	970	1,315
Other comprehensive income
Other comprehensive income before reclassification	32	17	21	54
Amounts reclassified from accumulated other comprehensive income (loss)	(10)	3	(15)	7
Issuance of exchangeable operating partnership units	20,000		20,000
Distributions to partners	(702)	(462)	(1,184)	(937)
Common units exchanged for common stock of Parent Company		(1,275)		(1,275)
Ending Balance	$ 54,281	$ 34,611	$ 54,281	$ 34,611