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N-2
Aug. 24, 2022
Cover [Abstract]  
Entity Central Index Key 0001378701
Amendment Flag false
Document Type POS EX
Entity Registrant Name THE GDL FUND
Entity Address, Address Line One One Corporate Center
Entity Address, City or Town Rye
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10580-1422
City Area Code 800
Local Phone Number 422-3554
No Substantive Changes, 462(c) false
Exhibits Only, 462(d) true
Entity Well-known Seasoned Issuer No
Entity Emerging Growth Company false
Business Contact [Member]  
Cover [Abstract]  
Entity Address, Address Line One One Corporate Center
Entity Address, City or Town Rye
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10580-1422
Contact Personnel Name John C. Ball