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INCOME TAXES - SCHEDULE OF INCOME BEFORE INCOME TAX, DOMESTIC AND FOREIGN (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]                      
United States                 $ 180,957 $ 80,881 $ 288,881
Foreign                 71,483 50,670 15,029
Income before income taxes $ 63,844 $ 71,939 $ 66,289 $ 50,368 $ 64,507 $ (52,170) $ 68,535 $ 50,679 $ 252,440 $ 131,551 $ 303,910