Comprehensive Income (Schedule of Accumulated Other Comprehensive Income (Loss)) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 25, 2012		Mar. 27, 2011
Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income beginning balance	$ 1,849	[1]	$ 849
Current period other comprehensive income	211		1,273
Accumulated other comprehensive income ending balance	2,060		2,122
Defined pension plan beginning balance	(29)
Current period other comprehensive income
Defined pension plan ending balance	(29)
Interest rate swaps beginning balance	6		(159)
Current period other comprehensive income (loss)	(80)	[2]	159	[2]
Current period other comprehensive income (loss), tax	(47)		89
Interest rate swaps ending balance	(74)
Foreign currency beginning balance	1,872		1,008
Current period other comprehensive income	291		1,114
Foreign currency ending balance	$ 2,163		$ 2,122

[1] The balance sheet at December 25, 2011 has been derived from the audited consolidated financial statements at that date, but does not include all information and footnotes required by accounting principles generally accepted in the United States for a complete set of financial statements.

[2] Amounts are shown net of tax of $89,000 and $47,000 for the three months ended March 27, 2011 and March 25, 2012, respectively.