REVENUES FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Disaggregation of Revenues
Totals	$ 118,110	$ 133,008	$ 218,387	$ 259,349
United States
Disaggregation of Revenues
Totals	93,949	123,380	174,221	238,871
Republic of Ireland
Disaggregation of Revenues
Totals	15,532	7,556	25,186	12,249
United Kingdom
Disaggregation of Revenues
Totals	$ 8,629	1,630	$ 18,980	7,787
Other
Disaggregation of Revenues
Totals		$ 442		$ 442