Benefit Plans (Details 10)	12 Months Ended
	Feb. 25, 2012 Agreement
Southern California UFCW Unions and Food Employers Joint Pension Trust Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	4
Expiration Date Regarding Collective Bargaining Agreement	Mar. 02, 2014
Percentage of associates under collective bargaining agreement	96.80%
Over 5% Contribution	Yes
Southern California UFCW Unions and Food Employers Joint Pension Trust Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Mar. 02, 2014
Southern California UFCW Unions and Food Employers Joint Pension Trust Fund [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Oct. 09, 2011
UFCW Union and Participating Food Industry Employers Tri State Pension Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	4
Expiration Date Regarding Collective Bargaining Agreement	Feb. 02, 2012
Percentage of associates under collective bargaining agreement	42.00%
Over 5% Contribution	Yes
UFCW Union and Participating Food Industry Employers Tri State Pension Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Jan. 25, 2014
UFCW Union and Participating Food Industry Employers Tri State Pension Fund [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Feb. 02, 2012
Western Conference of Teamsters Pension Plan [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	8
Expiration Date Regarding Collective Bargaining Agreement	Sep. 20, 2015
Percentage of associates under collective bargaining agreement	55.30%
Over 5% Contribution	No
Western Conference of Teamsters Pension Plan [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Sep. 10, 2016
Western Conference of Teamsters Pension Plan [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Jun. 04, 2011
Central States, Southeast and Southwest Areas Pension Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	13
Expiration Date Regarding Collective Bargaining Agreement	Sep. 15, 2013
Percentage of associates under collective bargaining agreement	26.90%
Over 5% Contribution	No
Central States, Southeast and Southwest Areas Pension Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	May 31, 2016
Central States, Southeast and Southwest Areas Pension Fund [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Sep. 10, 2011
Minneapolis Food Distributing Industry Pension Plan [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	May 31, 2013
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
Minneapolis Food Distributing Industry Pension Plan [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	May 31, 2013
United Food and Commercial Workers Union Local 152 Retail Meat Pension Plan [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	May 04, 2013
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
United Food and Commercial Workers Union Local 152 Retail Meat Pension Plan [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	May 04, 2013
Minneapolis Retail Meat Cutters and Food Handlers Pension Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	Mar. 02, 2013
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
Minneapolis Retail Meat Cutters and Food Handlers Pension Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Mar. 02, 2013
United Food and Commercial Workers International Union-Industry Pension Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	6
Expiration Date Regarding Collective Bargaining Agreement	Mar. 10, 2012
Percentage of associates under collective bargaining agreement	85.30%
Over 5% Contribution	No
United Food and Commercial Workers International Union-Industry Pension Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Sep. 05, 2015
United Food and Commercial Workers International Union-Industry Pension Fund [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Mar. 05, 2011
Retail Food Employers and UFCW Local 711 Pension [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	3
Expiration Date Regarding Collective Bargaining Agreement	Feb. 26, 2012
Percentage of associates under collective bargaining agreement	99.60%
Over 5% Contribution	Yes
Retail Food Employers and UFCW Local 711 Pension [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Dec. 07, 2013
Retail Food Employers and UFCW Local 711 Pension [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Feb. 26, 2012
UFCW Unions and Participating Employers Pension Plan [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	2
Expiration Date Regarding Collective Bargaining Agreement	Jul. 07, 2012
Percentage of associates under collective bargaining agreement	70.60%
Over 5% Contribution	Yes
UFCW Unions and Participating Employers Pension Plan [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Jul. 07, 2012
Sound Retirement Fund [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Number of Collective Bargaining Agreements	13
Expiration Date Regarding Collective Bargaining Agreement	May 04, 2013
Percentage of associates under collective bargaining agreement	45.60%
Over 5% Contribution	Yes
Sound Retirement Fund [Member] | Maximum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Jun. 07, 2014
Sound Retirement Fund [Member] | Minimum [Member]
Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plan
Range of Collective Bargaining Agreement Dates	Sep. 18, 2010