COMMON STOCK REPURCHASE PROGRAM (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Feb. 12, 2020
COMMON SHARE REPURCHASE PROGRAM
Shares authorized for repurchase under share repurchase program (in shares)	55,000,000	10,000,000
Shares purchased in the open market under share repurchase program (in shares)	3,400,000
CommonShareRepurchases	$ 288,134
Average cost per share of shares purchased in the open market under share repurchase program (in dollars per share)	$ 85.52
Remaining shares available for repurchase under the stock repurchase program (in shares)	2,800,000