Fair Value Measurements (Schedule of Financial Instruments Measure at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Jul. 30, 2022	Jan. 29, 2022	Jul. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - money market mutual funds	$ 41,401	$ 115,528	$ 132,514
Marketable securities - mutual funds that fund deferred compensation	10,994	14,961	17,431
Total	52,395	130,489	149,945
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - money market mutual funds	41,401	115,528	132,514
Marketable securities - mutual funds that fund deferred compensation	10,994	14,961	17,431
Total	52,395	130,489	149,945
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - money market mutual funds	0	0	0
Marketable securities - mutual funds that fund deferred compensation	0
Total	0	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents - money market mutual funds	0	0	0
Marketable securities - mutual funds that fund deferred compensation	0
Total	$ 0	$ 0	$ 0