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Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Balance of unrecognized tax benefits at beginning of year $ 13,079 $ 4,012 $ 8,414
Increases for tax positions of prior years 1,560 10,729  
Decreases for tax positions of prior years (327) (4) (310)
Increases for tax positions established for the current period 1,739 49 750
Decreases for settlements with taxing authorities (61) (27) (36)
Reductions resulting from lapse of applicable statute of limitation (901) (1,697) (4,678)
Adjustment resulting from foreign currency translation (93) 17 (128)
Balance of unrecognized tax benefits at end of year $ 14,996 $ 13,079 $ 4,012