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Components of Income (Loss) Before Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]                      
Domestic                 $ (7,760) $ 11,692 $ 5,358
Foreign                 13,136 14,901 19,866
Income before provision for income taxes $ (5,844) $ 31,612 $ (3,441) $ (16,951) $ (9,078) $ 47,239 $ (4,414) $ (7,154) $ 5,376 $ 26,593 $ 25,224