STOCK REPURCHASE PROGRAM (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Apr. 18, 2019
Stock repurchase program
Common stock repurchased (retired and held in treasury) (in shares)	220,000	0	220,000	0
Common stock repurchased (retired and held in treasury)	$ 28,400,000		$ 28,400,000
Remaining authorized repurchase amount	$ 250,100,000		$ 250,100,000
Stock Repurchase Program April 18, 2019
Stock repurchase program
Share repurchases authorized amount					$ 350,000,000