Derivative Instruments - Assets and liabilities presented on a net basis due to the right of setoff (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross amounts of recognized assets	$ 38	$ 210
Gross amounts offset	(5)	0
Net amount of assets presented	33	210
Gross amounts of recognized liabilities	128	122
Gross amounts offset	(16)	0
Net amount of liabilities presented	$ 112	$ 122