Commitments and Contingencies - Future Minimum Payments Under Non-Cancelable Leases, Sublease Commitments and Related Payments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Payments
2023	$ 97,489
2024	104,596
2025	37,319
2026	35,808
2027	32,821
2028 and thereafter	146,319
Total lease payments	454,352
Real Estate
Payments
2023	107,600
2024	108,900
2025	58,300
2026	55,700
2027	51,300
2028 and thereafter	487,700
Total lease payments	869,500
Sublease Receipts
2023	(31,900)
2024	(30,900)
2025	0
2026	0
2027	0
2028 and thereafter	0
Total future minimum payments	(62,800)
Net Payments
2023	75,700
2024	78,000
2025	58,300
2026	55,700
2027	51,300
2028 and thereafter	487,700
Total future minimum payments	$ 806,700

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due After Year Five

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- Definition

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Five

+ References

No definition available.

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- Definition

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Four

+ References

No definition available.

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- Definition

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Three

+ References

No definition available.

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- Definition

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Two

+ References

No definition available.

+ Details

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- Definition

Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Remainder Of Fiscal Year

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

The total of net future contractually required payments on leases defined as operating.

+ References

No definition available.

+ Details

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Namespace Prefix:	ablp_
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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payments to be received by lessor for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=124258985&loc=SL77919396-209981

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- Definition

Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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