Revenue - Revenues disaggregated (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 87,643	$ 73,288	$ 173,171	$ 132,815
Access Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	67,878	60,700	136,003	116,905
Utilization-Based Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 19,765	$ 12,588	$ 37,168	$ 15,910