Schedule II - Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts
Balance, beginning of period	$ 1,281	$ 1,120	$ 1,397
Provision	308	194	266
Charge-offs / Credits issued	(81)	(33)	(228)
Discontinued operations			(315)
Balance, end of period	1,508	1,281	1,120
Allowance for Customer Credits [Member]
Valuation and Qualifying Accounts
Balance, beginning of period	64,598	55,392	46,491
Provision	182,219	141,559	127,597
Charge-offs / Credits issued	(169,146)	(132,353)	(118,527)
Discontinued operations			(169)
Balance, end of period	$ 77,671	$ 64,598	$ 55,392

Valuation Allowances And Reserves Discontinued Operations.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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