Consolidated Statement of Capital (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net income	$ 88,847	$ 118,848	$ 391,650	$ 297,305
Other comprehensive income (loss)
Amounts reclassified from accumulated other comprehensive income (loss)	72	1,040	1,563	3,109
Deferred compensation plan, net		77
Contributions from partners	1,457		11,903
Distributions to partners	(1,124)	(1,283)	(4,899)	(3,272)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,125	3,425	12,699	9,468
Total Partners' Capital [Member]
Net income	87,578	117,406	387,602	293,552
Other comprehensive income (loss)
Amounts reclassified from accumulated other comprehensive income (loss)	78	952	1,413	2,850
Deferred compensation plan, net		77
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,125	3,425	12,699	9,468
Partnership Interest [Member]
Beginning Balance	6,206,135	6,040,031	6,109,932	6,058,147
Net income	88,847	118,848	391,650	297,305
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassification	6,410	89	18,837	3,383
Amounts reclassified from accumulated other comprehensive income (loss)	72	1,040	1,563	3,109
Deferred compensation plan, net		77		77
Contributions from partners	1,457		11,903
Distributions to partners	(108,534)	(103,040)	(328,101)	(308,045)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,125	3,425	12,699	9,468
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company			(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs / redemptions		82,510	61,284	82,510
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	228	484	(5,608)	(2,490)
Ending Balance	6,198,740	6,143,464	6,198,740	6,143,464
Partnership Interest [Member] | Total Partners' Capital [Member]
Beginning Balance	6,159,644	6,002,624	6,072,818	6,020,639
Net income	87,957	117,925	389,296	294,867
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassification	5,814	89	17,148	3,173
Amounts reclassified from accumulated other comprehensive income (loss)	79	956	1,421	2,862
Deferred compensation plan, net		77		77
Distributions to partners	(107,410)	(101,757)	(323,202)	(304,773)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,125	3,425	12,699	9,468
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company			(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs / redemptions		82,510	61,284	82,510
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	228	484	(5,608)	(2,490)
Ending Balance	6,150,437	6,106,333	6,150,437	6,106,333
Partnership Interest [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance	2,388	(13,658)	(10,227)	(18,625)
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassification	5,787	88	17,067	3,157
Amounts reclassified from accumulated other comprehensive income (loss)	78	952	1,413	2,850
Ending Balance	8,253	(12,618)	8,253	(12,618)
Partnership Interest [Member] | Noncontrolling Interests In Limited Partners Interest In Consolidated Partnerships [Member]
Beginning Balance	46,491	37,407	37,114	37,508
Net income	890	923	2,354	2,438
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassification	596		1,689	210
Amounts reclassified from accumulated other comprehensive income (loss)	(7)	84	142	247
Contributions from partners	1,457		11,903
Distributions to partners	(1,124)	(1,283)	(4,899)	(3,272)
Ending Balance	48,303	37,131	48,303	37,131
Partnership Interest [Member] | General Partner Preferred and Common Units [Member]
Beginning Balance	6,122,645	5,980,738	6,047,598	6,003,537
Net income	87,578	117,406	387,602	293,552
Other comprehensive income (loss)
Deferred compensation plan, net		77
Distributions to partners	(106,946)	(101,301)	(321,801)	(303,414)
Restricted units issued as a result of restricted stock issued by Parent Company, net of amortization	4,125	3,425	12,699	9,468
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company			(75,419)
Common units issued as a result of common stock issued by Parent Company, net of issuance costs / redemptions		82,510	61,284	82,510
Common units repurchased as a result of common stock repurchased by Parent Company, net of issuances	228	484	(5,608)	(2,490)
Common units exchanged for common stock of Parent Company			1,275	99
Ending Balance	6,107,630	6,083,339	6,107,630	6,083,339
Partnership Interest [Member] | Limited Partner [Member]
Beginning Balance	34,611	35,544	35,447	35,727
Net income	379	519	1,694	1,315
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassification	27	1	81	16
Amounts reclassified from accumulated other comprehensive income (loss)	1	4	8	12
Distributions to partners	(464)	(456)	(1,401)	(1,359)
Common units exchanged for common stock of Parent Company			(1,275)	(99)
Ending Balance	$ 34,554	$ 35,612	$ 34,554	$ 35,612