Fair Value Of Financial Instruments (Nonrecurring) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 05, 2012	Nov. 07, 2011	Nov. 05, 2012	Nov. 07, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	$ 0	$ 342	$ 2,525	$ 592
Carl's Jr. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	0	0	1,195	0
Hardee's [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charges	0	342	1,330	592
Company-operated [Member] | Carl's Jr. [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of underperforming restaurants			2
Property and equipment carrying value prior to impairment	1,265		1,265
Impairment charges			1,195
Domestic franchised [Member] | Hardee's [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property and equipment carrying value prior to impairment	1,250		1,250
Impairment charges			$ 1,204