v3.19.1

Basis and Summary of Significant Accounting Policies - Supplemental Disclosure of Noncash Investing Transactions (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Accounting Policies [Abstract] |  |
Asset acquisition, fair value of non-cash consideration |  | $ 0.4
Asset acquisition, non-cash settlement of accounts receivable | $ 0.1 | $ 0.2

X
- Definition Asset Acquisition, Consideration Transferred, Other + References No definition available. + Details
Name: | aan_AssetAcquisitionConsiderationTransferredOther
Namespace Prefix: | aan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Asset Acquisition, Non-Cash Settlement Of Accounts Receivable + References No definition available. + Details
Name: | aan_AssetAcquisitionNonCashSettlementOfAccountsReceivable
Namespace Prefix: | aan_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration