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, 2020		$ (8,316)	$ (57,219)	$ (94,203)			$ 41,776	$ 4,229,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 778,603						7,764	768,632
Cash distributions							(7,981)	(789,830)
Long-term incentive compensation		700	34,025				52	5,189
Issuance of AB Units, net			16,665
Retirement of AB Units, net							(164)	(16,351)
Issuance of AB Units for CarVal acquisition							0	0
Capital contributions (to) from AB Holding		(837)
Purchases of AB Holding Units to fund long-term compensation plans, net			(121,461)
Re-valuation of AB Holding Units held in rabbi trust			(2,918)
Other			0
Foreign currency translation adjustment, net of tax	(14,351)			(14,351)
Changes in employee benefit related items, net of tax	743			743
Partners' capital, ending balance at Sep. 30, 2021	3,991,400	(8,453)	(130,908)	(107,811)			41,447	4,197,125
Balance, beginning of period at Dec. 31, 2020					$ 0
Balance, end of period at Sep. 30, 2021					0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						$ 0
Partners' capital, beginning balance at Jun. 30, 2021		(7,799)	(140,204)	(98,790)			41,953	4,247,060
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	263,621						2,647	262,048
Cash distributions							(2,662)	(263,339)
Long-term incentive compensation		541	6,518				41	4,038
Issuance of AB Units, net			53,163
Retirement of AB Units, net							(532)	(52,682)
Issuance of AB Units for CarVal acquisition							0	0
Capital contributions (to) from AB Holding		(1,195)
Purchases of AB Holding Units to fund long-term compensation plans, net			(45,993)
Re-valuation of AB Holding Units held in rabbi trust			(4,392)
Other			0
Foreign currency translation adjustment, net of tax	(9,349)			(9,349)
Changes in employee benefit related items, net of tax	328			328
Partners' capital, ending balance at Sep. 30, 2021	3,991,400	(8,453)	(130,908)	(107,811)			41,447	4,197,125
Balance, beginning of period at Jun. 30, 2021					0
Balance, end of period at Sep. 30, 2021					0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						0
Total capital	3,991,400
Total capital	4,160,923
Partners' capital, beginning balance at Dec. 31, 2021	4,160,923	(8,333)	(119,470)	(90,335)			42,850	4,336,211
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	582,746						6,447	638,229
Cash distributions							(8,645)	(854,213)
Long-term incentive compensation		474	35,952				19	1,815
Issuance of AB Units, net			84,124
Retirement of AB Units, net							(823)	(81,626)
Issuance of AB Units for CarVal acquisition							1,328	131,511
Capital contributions (to) from AB Holding		1,328
Purchases of AB Holding Units to fund long-term compensation plans, net			(107,295)
Re-valuation of AB Holding Units held in rabbi trust			(3,301)
Other			(153)
Foreign currency translation adjustment, net of tax	(74,632)			(74,632)
Changes in employee benefit related items, net of tax	977			977
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
CarVal Acquisition						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]
Net income	165,066						1,752	173,428
Cash distributions							(2,149)	(212,485)
Long-term incentive compensation		134	9,176				(11)	(1,099)
Issuance of AB Units, net			2,509
Retirement of AB Units, net							(14)	(1,537)
Issuance of AB Units for CarVal acquisition							1,328	131,511
Capital contributions (to) from AB Holding		(430)
Purchases of AB Holding Units to fund long-term compensation plans, net			(838)
Re-valuation of AB Holding Units held in rabbi trust			860
Other			(153)
Foreign currency translation adjustment, net of tax	(29,159)			(29,159)
Changes in employee benefit related items, net of tax	333			333
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]
CarVal Acquisition						$ 11,208
Total capital	$ 3,943,647