Debt instrument aggregate amount received from exchange.

No definition available.

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- Definition

Debt instrument amount received on note exchange.

+ References

No definition available.

+ Details

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- Definition

Debt instrument applicable margin interest rate.

+ References

No definition available.

+ Details

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- Definition

Debt instrument loss expected on redemption of convertible note.

+ References

No definition available.

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- Definition

Line of credit facility percentage of maintenance of excess borrowing base.

+ References

No definition available.

+ Details

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- Definition

Number of tranches.

+ References

No definition available.

+ Details

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- Definition

Unsecured senior notes maturity period.

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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-Topic 835

-SubTopic 30

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(b))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph 22

-Subparagraph b

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Name Accounting Standards Codification

-Topic 942

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-Subparagraph (SX 210.9-03.16)

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-Subparagraph (SX 210.7-03.16)

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Topic 210

-SubTopic 10

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-Name Regulation S-X (SX)

-Number 210

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Weighted average interest rate of long-term debt outstanding.

+ References

No definition available.

+ Details

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Long-Term Debt - Additional Information (Detail) (USD $)	12 Months Ended	9 Months Ended	0 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 06, 2012	Mar. 30, 2013	Jan. 09, 2015	Nov. 19, 2013
Debt Instrument [Line Items]
Available borrowings under credit facility	1,400,000,000
Weighted average interest rate of convertible senior notes	4.02%	5.73%		8.43%
Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument applicable margin interest rate					0.25%
Minimum [Member]
Debt Instrument [Line Items]
Unused portion of loan commitments rate	0.25%
Maximum [Member]
Debt Instrument [Line Items]
Unused portion of loan commitments rate	0.375%
Tranche A [Member]
Debt Instrument [Line Items]
Interest rate description	As of January 3, 2015, Tranche A Eurodollar loans bear interest at rates ranging from LIBOR plus 1.50% to LIBOR plus 2.00% and Tranche A Base Rate loans bear interest at rates ranging from the greatest of (i) Federal Funds Rate plus 1.00% to 1.50% (ii) the Eurodollar Rate plus 1.50% to 2.00%; or (iii) the prime rate as announced by Wells Fargo plus 0.50% to 1.00%.
Tranche A [Member] \| Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.50%
Tranche A [Member] \| Minimum [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.00%
Tranche A [Member] \| Minimum [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.50%
Tranche A [Member] \| Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.00%
Tranche A [Member] \| Maximum [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.50%
Tranche A [Member] \| Maximum [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.00%
Tranche A-1 [Member]
Debt Instrument [Line Items]
Interest rate description	As of January 3, 2015, Tranche A-1 Eurodollar loans bear interest at rates ranging from LIBOR plus 2.75% to LIBOR plus 3.25% and Tranche A-1 Base Rate loans bear interest at rates ranging from the greatest of (i) the Federal Funds Rate plus 2.25% to 2.75% (ii) the Eurodollar Rate plus 2.75% to 3.25%; or (iii) the prime rate as announced by Wells Fargo plus 1.75% to 2.25%.
Tranche A-1 [Member] \| Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.75%
Tranche A-1 [Member] \| Minimum [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.25%
Tranche A-1 [Member] \| Minimum [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.75%
Tranche A-1 [Member] \| Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	3.25%
Tranche A-1 [Member] \| Maximum [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.75%
Tranche A-1 [Member] \| Maximum [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	3.25%
Tranche A-2 [Member]
Debt Instrument [Line Items]
Interest rate description	As of January 3, 2015 Tranche A-2 Eurodollar loans bear interest at LIBOR plus 5.50% and Tranche A Base Rate loans bear interest at rates representing the greatest of (i) Federal Funds Rate plus 5.00% (ii) the Eurodollar Rate plus 5.50%; or (iii) the prime rate as announced by Wells Fargo plus 4.50%.
Tranche A-2 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	5.50%
Tranche A-2 [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	5.00%
Tranche A-2 [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	5.50%
Senior Notes [Member]
Debt Instrument [Line Items]
Notes maturity date	Dec. 15, 2016	Dec. 15, 2016
Senior notes, rate	6.625%	6.625%
Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount of outstanding convertible senior notes repurchased				97,700,000
Loss expected on redemption of convertible senior notes				5,100,000
Wells Fargo Capital Finance, LLC [Member] \| Amended and Restated Loan and Security Agreement [Member]
Debt Instrument [Line Items]
Available borrowings under credit facility						1,000,000,000
Wells Fargo Capital Finance, LLC [Member] \| Tranche A [Member] \| Minimum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	0.50%
Wells Fargo Capital Finance, LLC [Member] \| Tranche A [Member] \| Maximum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.00%
Wells Fargo Capital Finance, LLC [Member] \| Tranche A-1 [Member] \| Minimum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	1.75%
Wells Fargo Capital Finance, LLC [Member] \| Tranche A-1 [Member] \| Maximum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	2.25%
Wells Fargo Capital Finance, LLC [Member] \| Tranche A-2 [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate	4.50%
Revolving credit agreement [Member]
Debt Instrument [Line Items]
Available borrowings under credit facility	1,000,000,000
Secured revolving credit facility	450,200,000	480,700,000
Credit agreement term	5 years
Number of tranches	3
Notes maturity date	Nov. 19, 2018	Nov. 19, 2018
Revolving credit agreement [Member] \| Tranche A [Member]
Debt Instrument [Line Items]
Available borrowings under credit facility	900,000,000
Revolving credit agreement [Member] \| Tranche A-1 [Member]
Debt Instrument [Line Items]
Available borrowings under credit facility	40,000,000
Revolving credit agreement [Member] \| Tranche A-2 [Member]
Debt Instrument [Line Items]
Secured revolving credit facility	60,000,000
Spartan Nash [Member]
Debt Instrument [Line Items]
Maintenance of excess borrowing base		10.00%
Current borrowing available under credit facility	406,800,000	406,900,000
Spartan Nash [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Unsecured 6.625% senior notes maturity period			4 years
Senior notes, rate			6.625%
Spartan Nash [Member] \| Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of senior notes			50,000,000
Spartan Nash [Member] \| Convertible Subordinated Debt [Member]
Debt Instrument [Line Items]
Private exchange sale amount received in cash			9,700,000
Amount received on exchange of convertible senior notes			40,300,000
Letter of credit [Member]
Debt Instrument [Line Items]
Unused borrowing capacity	11,500,000	14,200,000