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STOCKHOLDERS' EQUITY - Information Related to Stock Options Outstanding (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Shares Outstanding (in shares) | shares 951
Weighted Average Remaining Contractual  Term 6 years 3 months 18 days
Weighted Average Exercise Price of Options Outstanding (in dollars per share) $ 68.18
Number of Options Exercisable (in shares) | shares 581
Weighted Average Exercise Price of Options Exercisable (in dollars per share) $ 59.29
$29.06 - $50.32  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, minimum (in dollars per share) 29.06
Range of exercise prices, maximum (in dollars per share) $ 50.32
Shares Outstanding (in shares) | shares 152
Weighted Average Remaining Contractual  Term 2 years 4 months 24 days
Weighted Average Exercise Price of Options Outstanding (in dollars per share) $ 37.18
Number of Options Exercisable (in shares) | shares 152
Weighted Average Exercise Price of Options Exercisable (in dollars per share) $ 37.18
$54.87 - $76.89  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, minimum (in dollars per share) 54.87
Range of exercise prices, maximum (in dollars per share) $ 76.89
Shares Outstanding (in shares) | shares 433
Weighted Average Remaining Contractual  Term 6 years 3 months 18 days
Weighted Average Exercise Price of Options Outstanding (in dollars per share) $ 64.63
Number of Options Exercisable (in shares) | shares 326
Weighted Average Exercise Price of Options Exercisable (in dollars per share) $ 61.38
$80.26 - $102.25  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, minimum (in dollars per share) 80.26
Range of exercise prices, maximum (in dollars per share) $ 102.25
Shares Outstanding (in shares) | shares 366
Weighted Average Remaining Contractual  Term 8 years
Weighted Average Exercise Price of Options Outstanding (in dollars per share) $ 85.22
Number of Options Exercisable (in shares) | shares 103
Weighted Average Exercise Price of Options Exercisable (in dollars per share) $ 85.23