Document and Entity Information
Total
Prospectus:  
Document Type 485BPOS
Document Period End Date Dec. 31, 2019
Registrant Name HEARTLAND GROUP INC
Entity Central Index Key 0000809586
Entity Inv Company Type N-1A
Amendment Flag false
Document Creation Date Apr. 28, 2020
Document Effective Date May 01, 2020
Prospectus Date May 01, 2020
HEARTLAND SELECT VALUE FUND | Investor Class  
Prospectus:  
Trading Symbol HRSVX
HEARTLAND SELECT VALUE FUND | Institutional Class  
Prospectus:  
Trading Symbol HNSVX
HEARTLAND MID CAP VALUE FUND | Institutional Class  
Prospectus:  
Trading Symbol HNMDX
HEARTLAND MID CAP VALUE FUND | Investor Class  
Prospectus:  
Trading Symbol HRMDX
HEARTLAND VALUE PLUS FUND | Investor Class  
Prospectus:  
Trading Symbol HRVIX
HEARTLAND VALUE PLUS FUND | Institutional Class  
Prospectus:  
Trading Symbol HNVIX
HEARTLAND VALUE FUND | Investor Class  
Prospectus:  
Trading Symbol HRTVX
HEARTLAND VALUE FUND | Institutional Class  
Prospectus:  
Trading Symbol HNTVX