Commitments and Contingencies - Additional Information (Detail) (Inventories [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 27, 2013
Inventories [Member]
Long-term Purchase Commitment [Line Items]
Purchase commitment	$ 52.5

The minimum amount the entity agreed to spend under the long-term purchase commitment.

No definition available.

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