Other Assets - Components of Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 31, 2013
Statement Of Financial Position [Abstract]
Money market investments related to the deferred compensation plan	$ 5,484	$ 4,827
Long-term equity investments	22,874	21,242
Other long-term assets	1,148	1,522
Long-term investments and marketable securities	2,588	2,588
Deposits	1,084	1,174
Total	$ 33,178	$ 31,353