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Income Taxes - Reconciliation of the Federal Statutory Income Tax Rate and Effective Income Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2021
Feb. 02, 2020
Jan. 31, 2019
Income Tax Disclosure [Abstract]      
Tax at federal statutory rate $ (56,734) $ (40,880) $ (37,227)
State tax, net of federal benefit 349 210 (469)
Stock-based compensation expense (604) (6,683) (28,437)
Research and development tax credits (14,138) (11,033) (10,371)
U.S. taxes on foreign income 14,021 0 0
Foreign rate differential 2,282 2,935 12,299
Change in valuation allowance 63,146 61,050 85,533
Foreign on-shoring intellectual property 0 0 (20,371)
Other 3,594 722 132
Provision for income taxes $ 11,916 $ 6,321 $ 1,089