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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 25, 2026	Jan. 26, 2025	Jan. 28, 2024	Jan. 29, 2023
Income Tax [Line Items]
Deferred Tax Liabilities, Undistributed Foreign Earnings	$ 0
Gross research credits available to offset taxable income	89,563	$ 91,214
Valuation allowance	$ 336,266	328,203	$ 304,355	$ 156,850
Percentage of uncertain tax positions evaluating criteria	50.00%
Net tax benefits, if recognized, would impact the effective tax rate	$ 4,600	4,800
Unrecognized tax benefits, interest and penalties	500
Net deferred tax assets	34,087	40,374
Change in valuation allowance	8,100
Additions	20,537	35,071	$ 147,505
Possible decrease in unrecognized tax benefits within next twelve months	800
US, Canada, And France
Income Tax [Line Items]
Valuation allowance	336,300	328,200
Net deferred tax assets	370,400	$ 368,600
Foreign
Income Tax [Line Items]
Gross research credits available to offset taxable income	70,000
Foreign | Canada
Income Tax [Line Items]
Operating loss carryforwards	108,900
Foreign | France
Income Tax [Line Items]
Operating loss carryforwards	272,300
Foreign | Switzerland
Income Tax [Line Items]
Operating loss carryforwards	164,600
Foreign | UK
Income Tax [Line Items]
Operating loss carryforwards	10,000
Foreign | Sierra Wireless
Income Tax [Line Items]
Gross research credits available to offset taxable income	56,200
Federal
Income Tax [Line Items]
Gross research credits available to offset taxable income	10,900
Federal | Sierra Wireless
Income Tax [Line Items]
Gross research credits available to offset taxable income	4,100
State
Income Tax [Line Items]
Operating loss carryforwards	157,500
Gross research credits available to offset taxable income	$ 23,100

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