Fair Value Measurements (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012 store	Dec. 31, 2011	Mar. 26, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment, net	$ 1,021,402,000	$ 1,067,040,000	$ 1,138,657,000
Significant unobservable inputs applied, number of stores	56
Stock price volatility rate	60.70%
Risk free rate	3.40%
Credit spread	16.50%
Liquidity measure	245,000,000
Paid-in-kind dividends	8,200,000
Stock price	$ 3.45
North American Retail Division [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charges	18,000,000
Discounted Cash Flow Analysis [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment, net	7,400,000
Significant unobservable inputs applied, number of stores	27
Percentage used for analysis	11.00%
Estimated Salvage Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment, net	1,700,000
Significant unobservable inputs applied, number of stores	29
Stores Less Than 5 Years Old [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Average sales growth rates used for unobservable inputs	1.90%
Stores 5 Years And Older [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Average sales growth rates used for unobservable inputs	1.20%
Sales Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charges	7,000,000
Decrease in sales for scenario	1.00%
Gross Margin Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impairment charges	9,000,000
Decrease in gross margin for scenario	0.50%
Sales And Gross Margin Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of decrease in asset impairment in scenario	1,000,000
Decreased Stock Price Volatility Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stock price volatility rate	55.00%
Paid-in-kind dividends	400,000
Increased Stock Price Volatility Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stock price volatility rate	65.00%
Paid-in-kind dividends	(300,000)
Decreased Stock Price Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Paid-in-kind dividends	(500,000)
Stock price	$ 3.00
Increased Stock Price Scenario [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Paid-in-kind dividends	$ 500,000
Stock price	$ 4.00