Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Apr. 04, 2024	Jun. 30, 2023
Entity Listings [Line Items]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Document Transition Report	false
Entity File Number	001-41074
Entity Registrant Name	bleuacacia ltd
Entity Central Index Key	0001843370
Entity Incorporation, State or Country Code	E9
Entity Tax Identification Number	98-1582905
Entity Address, Address Line One	500 Fifth Avenue
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10110
City Area Code	212
Local Phone Number	935- 5599
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	true
Entity Public Float			$ 16,252,034.94
Auditor Firm ID	688
Auditor Name	Marcum LLP
Auditor Location	Boston, MA
Units [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Units, each consisting of one Class A ordinary share, one right and one-half of one redeemable warrant
Trading Symbol	BLEUU
Security Exchange Name	NASDAQ
Class A Ordinary Shares [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Class A ordinary shares, $0.0001 par value per share
Trading Symbol	BLEU
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		3,765,496
Rights [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Rights to acquire one-sixteenth of one Class A ordinary share
Trading Symbol	BLEUR
Security Exchange Name	NASDAQ
Redeemable Warrants [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share
Trading Symbol	BLEUW
Security Exchange Name	NASDAQ
Class B Ordinary Shares [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		3,790,000