STOCK COMPENSATION PLANS - SCHEDULE OF STOCK OPTION ACTIVITY (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding shares at beginning of year (shares)	5,394,382
Granted (shares)	1,640
Exercised (shares)	(2,881,923)
Forfeited (shares)	(93,638)
Outstanding as of December 31, 2019 (shares)	2,420,461	5,394,382
Options exercisable as of December 31, 2019 (shares)	1,410,004
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding (USD per share)	$ 94.28
Granted (USD per share)	109.74
Exercises (USD per share)	91.09
Forfeited (USD per share)	101.45
Outstanding (USD per share)	97.80	$ 94.28
Options exercisable (USD per share)	$ 95.50
Options outstanding, weighted-average remaining contractual term	5 years 8 months 12 days	5 years 7 months 6 days
Options exercisable, weighted aver remaining contractual term	4 years 6 months
Aggregate intrinsic value of options outstanding	$ 119,043
Aggregate intrinsic value of options exercisable	$ 72,589

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.