Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 30, 2014	Mar. 31, 2013
Summary of equity-based compensation expense
Restricted stock units	$ 779	$ 1,318

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_RestrictedStockExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration