Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Amount in accumulated other comprehensive income, reclassified as expense	$ 200,000
Interest rate swap, notional amount designated as a hedge			350,000,000
Net revenues to customers	411,877,000	380,567,000
Spain Italy Portugal And Greece
Derivatives, Fair Value [Line Items]
Net revenues to customers	$ 37,200,000	$ 38,000,000