CAPITAL STOCK AND SHARE-BASED COMPENSATION - Employee Stock Purchase Plan Purchases (Details) - $ / shares	3 Months Ended								91 Months Ended	115 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Employee Stock Purchase Plan shares issued (shares)	7,161	7,466	5,095	4,060	4,202	4,789	5,414	5,295	3,151,673	3,195,155
Price per Employee Stock Purchase Plan share issued (usd per share)	$ 137.60	$ 126.74	$ 208.19	$ 225.07	$ 249.33	$ 200.97	$ 168.76	$ 156.01	$ 16.81	$ 137.60