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Summary of Goodwill by Reporting Unit (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]      
Goodwill $ 530,670us-gaap_Goodwill $ 239,181us-gaap_Goodwill $ 234,195us-gaap_Goodwill
Sales and Lease Ownership      
Goodwill [Line Items]      
Goodwill 226,828us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_SalesAndLeaseOwnershipMember		 224,523us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_SalesAndLeaseOwnershipMember		 219,547us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_SalesAndLeaseOwnershipMember
Progressive      
Goodwill [Line Items]      
Goodwill 289,184us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_ProgressiveMember		 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_ProgressiveMember		 0us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_ProgressiveMember
HomeSmart      
Goodwill [Line Items]      
Goodwill $ 14,658us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_HomeSmartMember		 $ 14,658us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_HomeSmartMember		 $ 14,648us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= aan_HomeSmartMember