STOCKHOLDERS' EQUITY - Repurchase of Common Stock (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Number of shares authorized to be repurchased (in shares)	3,763,038
Aggregate number of shares repurchased since inception (in shares)	2,439,991
Number of shares remaining in treasury (in shares)	130,573		203,879
Number of shares acquired under stock repurchase plan and subsequently reissued (in shares)	8,224	8,496
Treasury stock acquired, average cost (in dollars per share)	$ 108.40	$ 85.53