Derivative Financial Instruments - Additional Information (Detail)	Sep. 28, 2014 Agreement	Dec. 29, 2013 Agreement	Sep. 29, 2013 Agreement
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Number of offsetting derivative transactions with counterparties	0
Number of outstanding derivative transactions		0	0

Number of price risk derivative instruments held by the entity at the reporting date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Name:	us-gaap_NumberOfPriceRiskDerivativesHeld
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant