Summary of Acquisitions of Lease Contracts, Merchandise and Related Assets of Sales and Lease Ownership Stores (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Weighted average amortization period of intangible assets	2 years 10 months 24 days	3 years 1 month 6 days	2 years 7 months 6 days
Customer Relationships
Business Acquisition [Line Items]
Weighted average amortization period of intangible assets	2 years	2 years	2 years
Non-Compete Agreements
Business Acquisition [Line Items]
Weighted average amortization period of intangible assets	3 years	3 years	3 years
Minimum | Acquired Franchise Development Rights
Business Acquisition [Line Items]
Weighted average amortization period of intangible assets	4 years 10 months 24 days	4 years 10 months 24 days	4 years 10 months 24 days
Maximum | Acquired Franchise Development Rights
Business Acquisition [Line Items]
Weighted average amortization period of intangible assets	6 years 10 months 24 days	6 years 10 months 24 days	6 years 10 months 24 days