Derivative Instruments - Schedule of Gain (Loss) Recognized on Forward Interest Rate Swaps Not Designated in Hedge Relationship (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Derivatives And Hedging Activities [Line Items]
Gain (loss) on forward interest-rate swaps	$ 185	$ 0	$ (2,248)	$ 0
Forward Interest Rate Swap Contracts [Member]
Derivatives And Hedging Activities [Line Items]
Gain (loss) on forward interest-rate swaps	$ 185	$ 0	$ (2,248)	$ 0

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959

Name:	us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration