XML 7 R1.htm IDEA: XBRL DOCUMENT v3.22.2.2
N-2 - $ / shares
Sep. 28, 2022
Sep. 27, 2022
Cover [Abstract]    
Entity Central Index Key 0000925683  
Amendment Flag false  
Document Type 424B3  
Entity Registrant Name John Hancock Financial Opportunities Fund  
General Description of Registrant [Abstract]    
Latest Share Price   $ 31.24
Latest Premium (Discount) to NAV [Percent]   (1.01%)
Latest NAV   $ 31.56