Benefit Plans - Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plant (Detail)	12 Months Ended
	Feb. 22, 2014 Agreement
Minneapolis Food Distributing Industry Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	May 31, 2015
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
Central States, Southeast and Southwest Areas Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	10
Expiration Date Regarding Collective Bargaining Agreement	May 31, 2016
Percentage of associates under collective bargaining agreement	28.30%
Over 5% Contribution	No
Minneapolis Retail Meat Cutters and Food Handlers Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	2
Expiration Date Regarding Collective Bargaining Agreement	Mar. 01, 2014
Percentage of associates under collective bargaining agreement	96.50%
Over 5% Contribution	Yes
UFCW Unions and Participating Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	2
Expiration Date Regarding Collective Bargaining Agreement	Jul. 12, 2014
Percentage of associates under collective bargaining agreement	68.20%
Over 5% Contribution	Yes
Western Conference of Teamsters Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	8
Expiration Date Regarding Collective Bargaining Agreement	Jul. 12, 2014
Percentage of associates under collective bargaining agreement	42.00%
Over 5% Contribution	No
UFCW Union Local 655 Food Employers Joint Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	Mar. 30, 2014
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
UFCW Unions and Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Collective Bargaining Agreements	1
Expiration Date Regarding Collective Bargaining Agreement	Apr. 05, 2014
Percentage of associates under collective bargaining agreement	100.00%
Over 5% Contribution	Yes
Minimum [Member] | Minneapolis Food Distributing Industry Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Jun. 01, 2013
Minimum [Member] | Central States, Southeast and Southwest Areas Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Jun. 13, 2009
Minimum [Member] | Minneapolis Retail Meat Cutters and Food Handlers Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Mar. 02, 2013
Minimum [Member] | UFCW Unions and Participating Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Jul. 08, 2012
Minimum [Member] | Western Conference of Teamsters Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Apr. 17, 2011
Minimum [Member] | UFCW Union Local 655 Food Employers Joint Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	May 17, 2010
Minimum [Member] | UFCW Unions and Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Apr. 07, 2013
Maximum [Member] | Minneapolis Food Distributing Industry Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	May 31, 2015
Maximum [Member] | Central States, Southeast and Southwest Areas Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Jul. 16, 2016
Maximum [Member] | Minneapolis Retail Meat Cutters and Food Handlers Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Mar. 01, 2014
Maximum [Member] | UFCW Unions and Participating Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Jul. 12, 2014
Maximum [Member] | Western Conference of Teamsters Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Sep. 22, 2016
Maximum [Member] | UFCW Union Local 655 Food Employers Joint Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Mar. 30, 2014
Maximum [Member] | UFCW Unions and Employers Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Range of Collective Bargaining Agreement Expiration Dates	Apr. 05, 2014