STOCK-BASED COMPENSATION - Summary of Activity under Company's Stock Option Plans (Details) - $ / shares shares in Thousands	6 Months Ended		12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jan. 31, 2022
STOCK-BASED COMPENSATION
Shares, Outstanding, Beginning balance	1,405
Shares, Granted	38
Shares, Exercised	(2)
Shares, Forfeited	(10)
Shares, Outstanding, Ending balance	1,431	1,398	1,405
Shares, Exercisable	1,192	1,022
Weighted Average Exercise Price, Outstanding, Beginning balance	$ 44.35
Weighted Average Exercise Price, Granted	36.78
Weighted Average Exercise Price, Exercised	32.68
Weighted Average Exercise Price, Forfeited	56.27
Weighted Average Exercise Price, Outstanding, Ending balance	44.08	$ 44.42	$ 44.35
Weighted Average Exercise Price, Exercisable	$ 44.83	$ 45.34
Weighted Average Remaining Term (Years), Outstanding	5 years 9 months 14 days	6 years 6 months 3 days	6 years 2 months 1 day
Weighted Average Remaining Term (Years), Exercisable	5 years 3 months 7 days	5 years 9 months 3 days
Weighted Average Fair Value, Outstanding	$ 10.19	$ 10.41	$ 10.31
Weighted Average Fair Value, Exercisable	$ 10.74	$ 11.20