Income Taxes (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025 USD ($) negotiation	Jul. 31, 2024 USD ($)	Jul. 31, 2025 USD ($) negotiation	Jul. 31, 2024 USD ($)
Income Tax Examination [Line Items]
Provision for income taxes	$ 1,743	$ 3,828	$ 4,570	$ 7,608
Effective tax rate	52.40%	(4.70%)	(27.90%)	(7.10%)
Unrecognized tax benefits which would impact the effective tax rate if recognized	$ 1,600		$ 1,600
Liability pertaining to uncertain tax positions	$ 900		$ 900
Number of bilateral transfer pricing negotiations | negotiation	2		2
Anticipated amount of QDMTT			$ 1,900
India
Income Tax Examination [Line Items]
Corporate income tax assessment appealed			$ 2,100
United States
Income Tax Examination [Line Items]
Increase (decrease) in valuation allowance	$ (3,100)
Increase (decrease) in DTA	(3,100)
Romania
Income Tax Examination [Line Items]
Increase (decrease) in valuation allowance	4,300
Increase (decrease) in DTA	$ 4,300