REVENUES FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Disaggregation of Revenues
Totals	$ 124,451	$ 127,331	$ 383,800	$ 274,971
United States
Disaggregation of Revenues
Totals	110,196	109,241	349,066	241,616
Republic of Ireland
Disaggregation of Revenues
Totals	9,698	8,331	21,947	10,760
United Kingdom
Disaggregation of Revenues
Totals	4,496	$ 9,759	12,283	$ 22,595
Other
Disaggregation of Revenues
Totals	$ 61		$ 504