SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Amounts Used In Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounting Policies [Abstract]
Weighted-average number of basic shares outstanding (in shares)	30,878	30,540
Stock options, stock units and performance awards (in shares)	0	0
Convertible Senior Notes (in shares)	0	0
Warrants (in shares)	0	0
Total shares and dilutive securities (in shares)	30,878	30,540