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Components of Income Before Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule of Income Before Income Tax [Line Items]      
Ireland $ 16,975 $ 7,561 $ 6,549
Foreign 9,379 1,754 (2,815)
Income before income taxes $ 26,354 $ 9,315 $ 3,734