Condensed Consolidated Statements of Changes in Partners' Capital - USD ($) $ in Thousands	Total	Receivables from Affiliates	AB Holding Units held for Long-term Incentive Compensation Plans	Accumulated Other Comprehensive (Loss)	Non-redeemable Non-controlling Interests in Consolidated Entities	Non-redeemable Non-controlling Interests in Consolidated Entities CarVal	General Partner’s Capital	Limited Partners' Capital
Partners' capital, beginning balance at Dec. 31, 2021		$ (8,333)	$ (119,470)	$ (90,335)			$ 42,850	$ 4,336,211
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						$ 11,208
Net income	$ 582,746				$ 0		6,447	638,229
Cash distributions							(8,645)	(854,213)
Long-term incentive compensation		474	35,952				19	1,815
Issuance of AB Units for CarVal acquisition							1,328	131,511
(Retirement) of AB Units, net							(823)	(81,626)
Capital contributions (to) from AB Holding		1,328
Purchases of AB Holding Units to fund long-term compensation plans, net			(107,295)
Retirement of AB Units, net			84,124
Re-valuation of AB Holding Units held in rabbi trust			(3,301)
Foreign currency translation adjustment, net of tax	(74,632)			(74,632)
Changes in employee benefit related items, net of tax	977			977
Distributions to (from) non-controlling interests, net					0
Other			(153)		0
Partners' capital, ending balance at Sep. 30, 2022	3,932,439	(6,531)	(110,143)	(163,990)			41,176	4,171,927
Balance, beginning of period at Dec. 31, 2021					0
Balance, end of period at Sep. 30, 2022					11,208
Partners' capital, beginning balance at Jun. 30, 2022		(6,235)	(121,697)	(135,164)			40,270	4,082,109
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						11,208
Net income	165,066				0		1,752	173,428
Cash distributions							(2,149)	(212,485)
Long-term incentive compensation		134	9,176				(11)	(1,099)
Issuance of AB Units for CarVal acquisition							1,328	131,511
(Retirement) of AB Units, net							(14)	(1,537)
Capital contributions (to) from AB Holding		(430)
Purchases of AB Holding Units to fund long-term compensation plans, net			(838)
Retirement of AB Units, net			2,509
Re-valuation of AB Holding Units held in rabbi trust			860
Foreign currency translation adjustment, net of tax	(29,159)			(29,159)
Changes in employee benefit related items, net of tax	333			333
Distributions to (from) non-controlling interests, net					0
Other			(153)		0
Partners' capital, ending balance at Sep. 30, 2022	3,932,439	(6,531)	(110,143)	(163,990)			41,176	4,171,927
Balance, beginning of period at Jun. 30, 2022					0
Balance, end of period at Sep. 30, 2022					11,208
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital	3,943,647
Total capital	4,477,640
Partners' capital, beginning balance at Dec. 31, 2022	4,465,033	(4,270)	(95,318)	(129,477)			45,985	4,648,113
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						0
Net income	547,918				623		5,373	531,919
Cash distributions							(6,319)	(624,470)
Long-term incentive compensation		548	18,561				34	3,352
Issuance of AB Units for CarVal acquisition							0	0
(Retirement) of AB Units, net							(646)	(64,092)
Capital contributions (to) from AB Holding		(1,518)
Purchases of AB Holding Units to fund long-term compensation plans, net			(70,837)
Retirement of AB Units, net			65,607
Re-valuation of AB Holding Units held in rabbi trust			(4,371)
Foreign currency translation adjustment, net of tax	(5,182)			(5,182)
Changes in employee benefit related items, net of tax	907			907
Distributions to (from) non-controlling interests, net					(2,334)
Other			0		(264)
Partners' capital, ending balance at Sep. 30, 2023	4,313,899	(5,240)	(86,358)	(133,752)			44,427	4,494,822
Balance, beginning of period at Dec. 31, 2022					12,607
Balance, end of period at Sep. 30, 2023					10,632
Partners' capital, beginning balance at Jun. 30, 2023		(5,148)	(89,343)	(118,154)			45,233	4,573,989
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						$ 0
Net income	165,240				108		1,674	165,730
Cash distributions							(1,962)	(193,614)
Long-term incentive compensation		142	3,600				31	3,025
Issuance of AB Units for CarVal acquisition							0	0
(Retirement) of AB Units, net							(549)	(54,308)
Capital contributions (to) from AB Holding		(234)
Purchases of AB Holding Units to fund long-term compensation plans, net			(52,175)
Retirement of AB Units, net			54,851
Re-valuation of AB Holding Units held in rabbi trust			(3,291)
Foreign currency translation adjustment, net of tax	(15,901)			(15,901)
Changes in employee benefit related items, net of tax	303			303
Distributions to (from) non-controlling interests, net					139
Other			0		0
Partners' capital, ending balance at Sep. 30, 2023	4,313,899	$ (5,240)	$ (86,358)	$ (133,752)			$ 44,427	$ 4,494,822
Balance, beginning of period at Jun. 30, 2023					10,385
Balance, end of period at Sep. 30, 2023					$ 10,632
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total capital	$ 4,324,531