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Income Taxes - Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current:      
Federal $ (90)    
State 5 $ 1 $ 42
Foreign 5,915 9,140 4,688
Total current 5,830 9,141 4,730
Deferred:      
Federal (2,985) 338 (497)
State 115 (135) 361
Foreign (2,097) (640) 715
Total deferred (4,967) (437) 579
Total $ 863 $ 8,704 $ 5,309