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Reconciliation of Total Amounts of Unrecognized Tax Benefits Excluding Interest and Penalties (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Reconciliation of Unrecognized Tax Benefits [Line Items]      
Beginning Balance $ 33,222 $ 18,660 $ 15,197
Gross increases - tax positions in prior periods 413 14,462 3,153
Gross decreases - tax positions in prior periods   (3,321)  
Gross increases - current period tax positions 1,476 3,672 3,729
Gross decreases - current period tax positions     (633)
Settlements (15,444)   (2,467)
Foreign currency translation adjustments (887) (251) (319)
Ending Balance $ 18,780 $ 33,222 $ 18,660