Basis and Summary of Significant Accounting Policies - Additional Information (Detail) shares in Thousands, $ in Thousands			3 Months Ended		6 Months Ended
	Apr. 14, 2014 USD ($) retail_location state	Oct. 14, 2011	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2015 USD ($) shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2015 GBP (£) Store	Jun. 30, 2015 USD ($) Store	Dec. 31, 2014 GBP (£)	Dec. 31, 2014 USD ($)
Significant Accounting Policies [Line Items]
Uncertain tax benefits that, if recognized, would affect effective tax rate								$ 2,500		$ 2,100
Anti-dilutive Securities excluded from the computation of earnings per share assuming dilution (in shares) | shares			545	176	507	137
Inventory Valuation Reserves								29,600		27,600
Lease merchandise adjustments			$ 30,200	$ 21,000	$ 59,500	$ 34,700
Assets Held For Sale								6,924		6,356
Cash surrender value of company-owned life insurance ("COLI") contracts								15,000		14,500
Benefits paid				652		652		776
Level 2
Significant Accounting Policies [Line Items]
Assets Held For Sale								6,924		6,356
Deferred compensation liability								$ 12,491		12,677
Employee
Significant Accounting Policies [Line Items]
Percentage of receipt of base compensation (up to)					75.00%
Percentage of receipt of incentive pay compensation (up to)					100.00%
Non Employee Director
Significant Accounting Policies [Line Items]
Percentage of receipt of base compensation (up to)					100.00%
Percentage of receipt of incentive pay compensation (up to)					100.00%
Variable Interest Entity, Not Primary Beneficiary
Significant Accounting Policies [Line Items]
Number of retail stores | Store							70	70
Maximum exposure to any potential losses associated with VIE								$ 22,800
Percentage of common stock outstanding		11.50%
Held to maturity securities							£ 14,200,000	$ 22,800	£ 13,700,000	$ 21,300
Held to maturity securities, face value | £							£ 10,000,000.0
Progressive Finance Holdings, LLC
Significant Accounting Policies [Line Items]
Business acquisition, percentage of voting interests acquired	100.00%
Acquisitions of businesses, net of cash acquired	$ 700,000
Number of retail locations (over 16,000) | retail_location	16,000
Number of states in which entity operates | state	46
Scenario, Adjustment
Significant Accounting Policies [Line Items]
Quantifying Misstatement in Current Year Financial Statements, Amount					$ 39,600
Reclassification adjustment to present sales net of taxes				$ 10,000		$ 10,000