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SHAREHOLDERS' EQUITY - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jul. 27, 2018
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Class of Stock [Line Items]          
Repurchase and retirement of common stock       $ 180,897 $ 5,820
Dividends declared (USD per share)       $ 0.01  
Other than accelerated share repurchase program          
Class of Stock [Line Items]          
Remaining authorized repurchase amount (up to)   $ 419,100   $ 419,100  
Repurchase of common stock (shares)   1,603,248 64,716 1,612,174 64,716
Repurchase and retirement of common stock   $ 179,900 $ 5,800 $ 180,900 $ 5,800
Repurchase of common stock (USD per share)   $ 112.20 $ 89.70 $ 112.19 $ 89.70
Subsequent Event          
Class of Stock [Line Items]          
Dividends declared (USD per share) $ 0.01