NET INCOME PER SHARE (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Weighted-average number of basic common shares outstanding	41,042,000	40,974,000	43,082,000
Weighted-average dilutive stock options, restricted stock units and performance share units	209,000	158,000	203,000
Assumed conversion of convertible senior notes	111,000	28,000	224,000
Weighted-average number of diluted common and common equivalent shares outstanding	41,362,000	41,160,000	43,509,000
Antidilutive securities excluded from computation of earnings per share, amount	12,722	124,922