EARNINGS PER SHARE ("EPS") - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Computation of Basic earnings per share:
Net income	$ 10,297	$ 99,321	$ 162,553	$ 187,826
Weighted average shares outstanding—basic (in shares)	115,757	114,444	115,727	114,153
Basic earnings per share (in dollars per share)	$ 0.09	$ 0.87	$ 1.40	$ 1.65
Computation of Diluted earnings per share:
Net income	$ 10,297	$ 99,321	$ 162,553	$ 187,826
Weighted average shares outstanding—basic (in shares)	115,757	114,444	115,727	114,153
Add: dilutive effect of common stock equivalents (in shares)	1,046	970	1,164	1,092
Weighted average common shares outstanding—diluted (in shares)	116,803	115,414	116,891	115,245
Diluted earnings per share (in dollars per share)	$ 0.09	$ 0.86	$ 1.39	$ 1.63