NET INCOME PER SHARE - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basic net income per share:
Net income	$ 32,901	$ 45,394
Weighted average common shares outstanding - Basic (in shares)	83,632	84,500
Basic net income per common share (in dollars per share)	$ 0.39	$ 0.54
Diluted net income per share:
Net income	$ 32,901	$ 45,394
Weighted average common shares outstanding - Basic (in shares)	83,632	84,500
Effect of dilutive securities:
Stock options and restricted stock (in shares)	644	758
Weighted average common shares for diluted earnings per share (in shares)	84,276	85,258
Diluted net income per common share (in dollars per share)	$ 0.39	$ 0.53