Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
Mar. 29, 2014
Commitments and Contingencies [Line Items]
Prepaid rent, included in other long-term assets	$ 371,000
Tenant improvement allowance	1,700,000
Standby letter of credit for lease	1,000,000
Gross rental expense	$ 777,000
Maximum
Commitments and Contingencies [Line Items]
Operating lease expiration date	2024-03

Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

Name:	us-gaap_PrepaidExpenseNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant