Acquisitions - Additional Information Regarding Recent Acquisitions (Details) $ in Thousands					1 Months Ended			3 Months Ended	9 Months Ended
	Jun. 25, 2018 USD ($) store	Jun. 11, 2018 state store	Dec. 04, 2017 store	Oct. 06, 2017 USD ($) store	Jun. 30, 2019 USD ($) store	Dec. 31, 2018 USD ($) store	Jan. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Number of stores acquired | store					7
Goodwill						$ 296,638		$ 296,638		$ 300,527	$ 299,248	$ 290,215
Metro Pawn
Business Acquisition [Line Items]
Cash payments for acquisition					$ 7,000
Goodwill					$ 3,900
Pawn Stores, Mexico 2019
Business Acquisition [Line Items]
Number of stores acquired | store						5
Cash payments for acquisition						$ 300
Goodwill						$ 100		100
GPMX
Business Acquisition [Line Items]
Number of stores acquired | store				112
Cash payments for acquisition				$ 53,400			$ 1,600		$ 6,700
Goodwill				$ 34,816
Percentage acquired				100.00%
Contingent consideration				$ 2,250
Duration of performance period tied to contingent consideration				24 months
Aggregate purchase price				$ 61,700
All Other
Business Acquisition [Line Items]
Number of stores acquired | store	40	23	21
Goodwill	$ 7,770
Number of states in which entity operates | state		7
Montepio San Patricio And Presta Dinero
Business Acquisition [Line Items]
Goodwill, subsequent recognition of deferred tax asset								$ 1,800