Total fair value of finite-lived and indefinite-lived intangible assets, as a group, acquired from a business combination.

No definition available.

+ Details

Name:	sndk_BusinessCombinationFinitelivedandInfinitelivedIntangibleAssetsAcquired
Namespace Prefix:	sndk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

+ Details

Name:	us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

+ References

No definition available.

+ Details

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

Business Acquisition Business Acquisition - Fair Value of Intangible Assets (Details 4) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended	3 Months Ended
	Sep. 28, 2014 Unclassified Indefinite-lived Intangible Assets [Member]	Dec. 29, 2013 Unclassified Indefinite-lived Intangible Assets [Member]	Sep. 28, 2014 Fusion-io Inc [Member]	Sep. 28, 2014 Fusion-io Inc [Member] Unclassified Indefinite-lived Intangible Assets [Member]	Sep. 28, 2014 Fusion-io Inc [Member] Developed product technology [Member]	Sep. 28, 2014 Fusion-io Inc [Member] Trademarks and Trade Names [Member]	Sep. 28, 2014 Fusion-io Inc [Member] Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			4 years 6 months		5 years 0 months	5 years 0 months	1 year 6 months
Finite-lived Intangible Assets Acquired					$ 271,000	$ 54,000	$ 57,000
Acquired Indefinite-lived Intangible Assets	61,000	42,500		61,000
Business Combination, Finite-lived and Infinite-lived Intangible Assets Acquired			$ 443,000