Summary of Significant Accounting Policies, Revenues Earned by Line of Service (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 62,235	$ 15,152	$ 107,769	$ 28,743
Subscription Revenue
Disaggregation of Revenue [Line Items]
Revenue	23,220	14,690	41,443	27,468
Services Revenue
Disaggregation of Revenue [Line Items]
Revenue	39,015	462	66,326	1,275
Services Revenue | Breach Services
Disaggregation of Revenue [Line Items]
Revenue	37,988		64,138
Services Revenue | Other Services
Disaggregation of Revenue [Line Items]
Revenue	$ 1,027	$ 462	$ 2,188	$ 1,275