v3.19.3
Cover Page - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2019
Nov. 22, 2019
Mar. 31, 2019
Cover page.      
Document Type 10-K    
Document Period End Date Sep. 30, 2019    
Document Transition Report false    
Entity File Number 0-22140    
Entity Registrant Name META FINANCIAL GROUP INC    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 42-1406262    
Entity Address, Address Line One 5501 South Broadband Lane    
Entity Address, City or Town Sioux Falls    
Entity Address, State or Province SD    
Entity Address, Postal Zip Code 57108    
City Area Code 605    
Local Phone Number 782-1767    
Title of 12(b) Security Common Stock, $.01 par value    
Trading Symbol CASH    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 701.3
Entity Common Stock, Shares Outstanding   37,584,488  
Entity Central Index Key 0000907471    
Current Fiscal Year End Date --09-30    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Document Annual Report true    
Amendment Flag false