XML 62 R53.htm IDEA: XBRL DOCUMENT v2.4.1.9

Goodwill and Other Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Dec. 28, 2013	Jan. 03, 2015	Mar. 30, 2013
Goodwill [Line Items]
Goodwill	$ 385,786us-gaap_GoodwillGross	$ 383,880us-gaap_GoodwillGross	$ 333,440us-gaap_GoodwillGross
Accumulated impairment charges	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Goodwill, net	299,186us-gaap_Goodwill	297,280us-gaap_Goodwill	246,840us-gaap_Goodwill
Merger and acquisition	53,649us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments
Other	(1,303)sptn_GoodwillPurchaseAccountingAdjustmentsAndDisposal	(1,906)sptn_GoodwillPurchaseAccountingAdjustmentsAndDisposal
Retail [Member]
Goodwill [Line Items]
Goodwill	254,438us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	252,532us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	238,714us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember
Accumulated impairment charges	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	(86,600)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember
Goodwill, net	167,838us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	165,932us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	152,114us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember
Merger and acquisition	17,027us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember
Other	(1,303)sptn_GoodwillPurchaseAccountingAdjustmentsAndDisposal / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember	(1,906)sptn_GoodwillPurchaseAccountingAdjustmentsAndDisposal / us-gaap_StatementBusinessSegmentsAxis = sptn_RetailMember
Food Distribution [Member]
Goodwill [Line Items]
Goodwill	131,348us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember	131,348us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember	94,726us-gaap_GoodwillGross / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember
Goodwill, net	131,348us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember	131,348us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember	94,726us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember
Merger and acquisition	$ 36,622us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sptn_DistributionMember

X

- Definition

Goodwill purchase accounting adjustments and disposal.

+ References

No definition available.

+ Details

Name:	sptn_GoodwillPurchaseAccountingAdjustmentsAndDisposal
Namespace Prefix:	sptn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a,h)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a,h)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=sptn_DistributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=sptn_RetailMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: