Income Taxes - Additional Information (Details) $ in Millions	12 Months Ended
	Jan. 31, 2025 USD ($) negotiation	Jan. 31, 2024 USD ($)	Jul. 09, 2020 USD ($)	Apr. 24, 2017 USD ($)
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	$ (63.8)	$ (6.5)
Deferred tax liability associated with the undistributed earnings of foreign subsidiaries	3.8
Unrecognized tax benefits inclusive of penalties and interest	60.9	2.3
Unrecognized tax benefits which would impact the effective tax rate if recognized	1.6	2.3
Liability pertaining to uncertain tax positions	$ 0.9	0.5
Number of bilateral transfer pricing negotiations | negotiation	2
U.S., Romania and U.K.
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	$ (39.1)
U.K.
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	(24.7)
Romania | Disallowed Income Tax Deductions
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	(25.4)
Proposed reduction in net operating loss carryforwards	66.7
Proposed reduction in net operating loss carryforwards appealed	64.3
Estimated exposure	25.4
Increase (decrease) in DTA	(25.4)
Romania | Transfer Pricing Arrangement
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	16.0
Increase (decrease) in DTA	16.0
U.S. | Transfer Pricing Arrangement
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	(33.8)
Increase (decrease) in DTA	(33.8)
India
Operating Loss Carryforwards [Line Items]
Corporate income tax assessment	2.1
Federal
Operating Loss Carryforwards [Line Items]
Net operating losses	645.8	827.4
Net operating losses, annual limitation			$ 29.0	$ 0.1
State
Operating Loss Carryforwards [Line Items]
Net operating losses	834.6	824.7
Foreign | U.K.
Operating Loss Carryforwards [Line Items]
Net operating losses	101.7	118.3
Foreign | Romania
Operating Loss Carryforwards [Line Items]
Net operating losses	658.2	549.9
Foreign | Japan
Operating Loss Carryforwards [Line Items]
Net operating losses	$ 1.8	$ 6.3