Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Jan. 29, 2022	Jan. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 177,260	$ 301,920
Long-term other assets	11,808	10,157
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	24,719	26,335
Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	17,890	19,267
Long-term other assets	6,829	7,068
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	177,260	312,868
Level 2 [Member] | U.S. Treasury and Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	28,432	54,310
Level 2 [Member] | State and Local Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	25,632	24,738
Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		10,948
Marketable securities	$ 123,196	$ 222,872