Stock-Based Compensation Expense Stock-Based Compensation Expense- Summary of Restricted Stock Option Activity (Detail) (Details) (Restricted Stock [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	Jun. 29, 2014
Restricted Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options, Nonvested as of December 31, 2013	20
Options, Nonvested, Weighted Average Grant Date Fair Value	$ 34.05
Options, Nonvested as of June 29,2014	20
Options, Nonvested as of June 29, 2014, Weighted-Average Exercise Price, in dollars per share	$ 34.05
Nonvested as of June 29, 2014, Aggregate Intrinsic Value	$ 73