Acquisitions - Intangible Assets Acquired (Details) - USD ($) $ in Thousands			12 Months Ended
	Jul. 27, 2017	Oct. 15, 2015	Dec. 31, 2017
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangibles (in years)			2 years
Reacquired Franchise Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangibles (in years)			10 years
SEI/Aaron’s, Inc.
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 13,578
Estimated useful lives of definite-lived intangibles (in years)			4 years 3 months 18 days
SEI/Aaron’s, Inc. | Non-compete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	1,244
Estimated useful lives of intangibles (in years)			5 years
SEI/Aaron’s, Inc. | Customer Lease Contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	2,130
Estimated useful lives of intangibles (in years)			1 year
SEI/Aaron’s, Inc. | Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	3,176
Estimated useful lives of intangibles (in years)			2 years
SEI/Aaron’s, Inc. | Reacquired Franchise Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	3,640
Estimated useful lives of intangibles (in years)			4 years 1 month 6 days
SEI/Aaron’s, Inc. | Favorable Operating Leases
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 3,388
Estimated useful lives of intangibles (in years)			8 years 6 months
DAMI | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangibles (in years)			5 years
Subsidiaries | DAMI
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired		$ 2,900
Subsidiaries | DAMI | Non-compete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired		350
Estimated useful lives of intangibles (in years)			5 years
Subsidiaries | DAMI | Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired		$ 2,550
Estimated useful lives of intangibles (in years)			5 years