Basis and Summary of Significant Accounting Policies - Store Count by Ownership Type (Details) - Operating Segments - Store	Sep. 30, 2018	Sep. 30, 2017
Significant Accounting Policies [Line Items]
Number of retail stores	1,699	1,750
Company-operated Aaron's Branded Stores
Significant Accounting Policies [Line Items]
Number of retail stores	1,267	1,181
Franchised Stores
Significant Accounting Policies [Line Items]
Number of retail stores	432	569