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INCOME TAXES - Components of Income from Operations before Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Domestic $ 140,325 $ 276,218 $ 461,394
Foreign 211,738 136,619 123,974
Income from operations before income taxes $ 352,063 $ 412,837 $ 585,368