REVENUES FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Disaggregation of Revenues
Totals	$ 509,370	$ 392,206	$ 238,997
United States
Disaggregation of Revenues
Totals	456,211	340,615	169,299
Republic of Ireland
Disaggregation of Revenues
Totals	35,044	13,638	20,342
United Kingdom
Disaggregation of Revenues
Totals	17,521	37,836	49,028
Other
Disaggregation of Revenues
Totals	$ 594	$ 117	$ 328