Acquisitions - Narrative (Details) $ in Thousands			5 Months Ended	12 Months Ended
	Jul. 27, 2017 USD ($) customer state	Oct. 15, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Purchase price, net of cash				$ 145,558	$ 9,762	$ 73,295
SEI/Aaron’s, Inc.
Business Acquisition [Line Items]
Purchase price, net of cash	$ 140,000
Number of customers entity serves | customer	90,000
Number of branded stores | state	104
Number of states in which entity operates | state	11
Revenues			$ 58,300
Earnings before income taxes			$ 2,500
Acquisition related costs				$ 2,000
Purchase Price	$ 143,540
DAMI
Business Acquisition [Line Items]
Purchase Price		$ 54,900
Subsidiaries | DAMI
Business Acquisition [Line Items]
Acquisition related costs						$ 3,700
Percentage of voting interests acquired		100.00%
Purchase Price		$ 54,900
Cash acquired from acquisition		$ 4,200