CONTRACT BALANCES AND CONTRACT COSTS - Disaggregation of Revenue by Service Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2022	Oct. 29, 2021	Oct. 28, 2022	Oct. 29, 2021
Disaggregation of Revenue [Line Items]
Total net revenue	$ 110,942	$ 133,699	$ 348,139	$ 407,334
Taegis Subscription Solutions
Disaggregation of Revenue [Line Items]
Total net revenue	47,888	23,929	127,913	56,392
Managed Security Services
Disaggregation of Revenue [Line Items]
Total net revenue	39,303	79,063	144,013	253,096
Subscription
Disaggregation of Revenue [Line Items]
Total net revenue	87,191	102,992	271,926	309,488
Professional services
Disaggregation of Revenue [Line Items]
Total net revenue	$ 23,751	$ 30,707	$ 76,213	$ 97,846