Cover - shares	1 Months Ended
Cover - shares	Sep. 30, 2024	Jan. 15, 2025
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Sep. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Information [Line Items]
Entity Registrant Name	JACKSON ACQUISITION COMPANY II
Entity Central Index Key	0002039058
Entity File Number	001-42432
Entity Tax Identification Number	98-1810786
Entity Incorporation, State or Country Code	E9
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Shell Company	true
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	2655 Northwinds Parkway
Entity Address, City or Town	Alpharetta
Entity Address, Country	GA
Entity Address, Postal Zip Code	30009
Entity Phone Fax Numbers [Line Items]
City Area Code	(770)
Local Phone Number	643-5605
Units, each consisting of one Class A ordinary share and one right to acquire one-tenth (1/10) of one Class A ordinary share
Entity Listings [Line Items]
Title of 12(b) Security	Units, each consisting of one Class A ordinary share and one right to acquire one-tenth (1/10) of one Class A ordinary share
Trading Symbol	JACS.U
Security Exchange Name	NYSE
Class A ordinary share, par value $0.0001 per share
Entity Listings [Line Items]
Title of 12(b) Security	Class A ordinary share, par value $0.0001 per share
Trading Symbol	JACS
Security Exchange Name	NYSE
Rights, each right to acquire one-tenth (1/10) of one Class A ordinary share
Entity Listings [Line Items]
Title of 12(b) Security	Rights, each right to acquire one-tenth (1/10) of one Class A ordinary share
Trading Symbol	JACS.R
Security Exchange Name	NYSE
Class A Ordinary Shares
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		23,840,000
Class B Ordinary Shares
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		5,750,000

Jackson Acquisition Co II 10-Q