v3.23.3

Cover	Nov. 20, 2023
Document Information [Line Items]
Document Type	8-K
Amendment Flag	false
Document Period End Date	Nov. 20, 2023
Entity File Number	001-41075
Entity Registrant Name	SEAPORT GLOBAL ACQUISITION II CORP.
Entity Central Index Key	0001869824
Entity Tax Identification Number	86-1326052
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	360 Madison Avenue
Entity Address, Address Line Two	23rd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10017
City Area Code	212
Local Phone Number	616-7700
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false
Units [Member]
Document Information [Line Items]
Title of 12(b) Security	Units, each consisting of one share of Class A common stock and one-half of one redeemable warrant
Trading Symbol	SGIIU
Security Exchange Name	NASDAQ
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	SGII
Security Exchange Name	NASDAQ
Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.50 per share [Member]
Document Information [Line Items]
Title of 12(b) Security	Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share
Trading Symbol	SGIIW
Security Exchange Name	NASDAQ

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Seaport Global Acquisition II Corp. 8-K