v3.6.0.2
Document and Entity Information
$ in Millions
3 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Feb. 02, 2017
shares
Document Information [Line Items]      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net $ (27.1)    
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Dec. 31, 2016    
Industry Holdings, Number of Top Investments 10    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus Q1    
Trading Symbol HRG    
Entity Registrant Name HRG GROUP, INC.    
Entity Central Index Key 0000109177    
Current Fiscal Year End Date --09-30    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding | shares     200,231,094
HGI [Member]      
Document Information [Line Items]      
Document Fiscal Year Focus 2016    
Spectrum Brands [Member]      
Document Information [Line Items]      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net $ 43.2 $ 4.6  
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ 4.8 $ 0.2