Geographic Data - Net Sales by Country (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Entity Wide Accounts Receivable Major Customer [Line Items]
Total net sales	$ 1,038,159	$ 996,168	$ 983,488
United States [Member]
Entity Wide Accounts Receivable Major Customer [Line Items]
Total net sales	562,848	539,504	504,283
United Kingdom [Member]
Entity Wide Accounts Receivable Major Customer [Line Items]
Total net sales	323,708	317,793	339,027
Singapore [Member]
Entity Wide Accounts Receivable Major Customer [Line Items]
Total net sales	140,588	134,349	136,757
Other Segment [Member]
Entity Wide Accounts Receivable Major Customer [Line Items]
Total net sales	$ 11,015	$ 4,522	$ 3,421