Summary of Acquisitions of Lease Contracts, Merchandise and Related Assets of Sales and Lease Ownership Stores (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Store		Dec. 31, 2011 Store		Dec. 31, 2010 Store
Business Acquisition [Line Items]
Number of stores acquired, net	22		52		14
Aggregate purchase price (primarily cash consideration)	$ 31,617		$ 41,425		$ 17,891
Lease Merchandise	11,936		13,385		6,489
Property, Plant and Equipment	739		500		334
Other Current Assets and Current Liabilities	38		34		43
Goodwill	15,214	[1]	22,888	[1]	9,240	[1]
Customer relationship intangibles
Business Acquisition [Line Items]
Identifiable intangible assets	1,725	[2]	2,675	[2]	748	[2]
Non-compete intangibles
Business Acquisition [Line Items]
Identifiable intangible assets	1,201	[2]	1,688	[2]	541	[2]
Acquired franchise development rights
Business Acquisition [Line Items]
Identifiable intangible assets	$ 764	[2]	$ 255	[2]	$ 496	[2]

[1] Goodwill is primarily attributable to synergies expected to arise after the acquisition. All goodwill resulting from the Company's 2012, 2011 and 2010 acquisitions is expected to be deductible for tax purposes.

[2] The weighted-average amortization period for the Company's acquired intangible assets was 3.1 years, 2.6 years and 3.5 years in 2012, 2011 and 2010, respectively. The weighted-average amortization period by major intangible asset class for acquisitions completed during 2012, 2011 and 2010 was 2 years for customer relationships, 3 years for non-compete agreements and a range of 6 years to 6.9 years for acquired franchise development rights.