Fair Value Measurements - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended				3 Months Ended											3 Months Ended				3 Months Ended
	Jun. 30, 2012 Store	Jun. 30, 2012 Store	Jun. 25, 2011	Mar. 31, 2012 Store	Dec. 31, 2011	Jun. 30, 2012 Minimum	Jun. 30, 2012 Maximum	Jun. 30, 2012 Sales Scenario	Jun. 30, 2012 Gross Margin Scenario	Jun. 30, 2012 Sales And Gross Margin Scenario	Jun. 30, 2012 Decreased Stock Price Volatility Scenario	Jun. 30, 2012 Increased Stock Price Volatility Scenario	Jun. 30, 2012 Decreased Stock Price Scenario	Jun. 30, 2012 Increased Stock Price Scenario	Jun. 30, 2012 Future dividends paid in cash scenario	Jun. 30, 2012 Some level of impairment recognized in the first quarter of 2012 Store	Jun. 30, 2012 Discounted Cash Flow Analysis Store	Mar. 31, 2012 Discounted Cash Flow Analysis Store	Jun. 30, 2012 Estimated Salvage Value Store	Mar. 31, 2012 Estimated Salvage Value Store	Jun. 30, 2012 Stores Less Than 5 Years Old	Jun. 30, 2012 Stores 5 Years And Older	Jun. 30, 2012 North American Retail Division	Mar. 31, 2012 North American Retail Division
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charges	$ 23,861,000	$ 41,755,000	$ 669,000					$ 6,000,000	$ 11,000,000														$ 24,000,000	$ 18,000,000
Number of stores impaired	74	74		56												23	17	27	57	29
Property and equipment, net	971,930,000	971,930,000	1,119,505,000		1,067,040,000												3,000,000	7,000,000	3,000,000	2,000,000
Percentage used for analysis																	13.00%	11.00%
Sales declines	5.00%
Projected sales growth in subsequent years						1.00%	1.50%
Average sales growth rates per store used for unobservable inputs																					2.10%	0.40%
Decrease in sales for scenario								1.00%
Decrease in gross margin for scenario									0.50%
Amount of decrease in asset impairment in scenario										1,000,000
Stock price	$ 2.16	$ 2.16											$ 1.50	$ 3.00
Stock price volatility rate	64.90%										55.00%	75.00%
Risk free rate	2.80%
Credit spread	13.60%
Paid-in-kind dividends	6,900,000										900,000	700,000	1,100,000	1,000,000
Paid in cash dividend															$ 1,500,000