Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 24, 2012		Jun. 26, 2011	Jun. 24, 2012		Jun. 26, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency beginning balance	$ 2,163		$ 2,122	$ 1,872		$ 1,008
Current period other comprehensive income (loss)	(445)		(514)	(154)		600
Foreign currency ending balance	1,718		1,608	1,718		1,608
Interest rate swaps beginning balance	(74)			6		(159)
Current period other comprehensive income (loss)	(6)	[1]		(86)	[1]	159	[1]
Interest rate swaps ending balance	(80)			(80)
Defined pension plan beginning balance	(29)			(29)
Current period other comprehensive income (loss)
Defined pension plan ending balance	(29)			(29)
As Restated [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss) beginning balance	2,060		2,122	1,849		849
Current period other comprehensive income (loss)	(451)		(514)	(240)		759
Accumulated other comprehensive income (loss) ending balance	$ 1,609		$ 1,608	$ 1,609		$ 1,608

[1] Current period other comprehensive income (loss) is shown net of tax of $3 for the three months ended June 24, 2012 (none in the same period of 2011) and $89 and $51 for the six months ended June 26, 2011 and June 24, 2012, respectively.