Fair Value Measurements (Details) - USD ($) $ in Thousands		Jan. 27, 2023	Jul. 29, 2022	Jun. 18, 2021
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Liabilities at fair value		$ 0	$ 0
0.625% Convertible Senior Notes Due 2026 [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Interest rate		0.625%		0.625%
Level 2 [Member] | 0.625% Convertible Senior Notes Due 2026 [Member] | Estimated Fair Value [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Fair value of notes		$ 269,625	255,894
Recurring [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Cash equivalents	[1]	26,501	18,001
Deferred compensation plan assets	[2]	25,201	27,843
Total assets at fair value		51,702	45,844
Recurring [Member] | Level 1 [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Cash equivalents	[1]	26,501	18,001
Recurring [Member] | Level 2 [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Cash equivalents	[1]	0	0
Recurring [Member] | Level 3 [Member]
Assets Liabilities Measured at Fair Value on a Recurring Basis [Abstract]
Cash equivalents	[1]	$ 0	$ 0

[1] Consists of money market fund investments.

[2] Represents plan assets invested in mutual funds established under a rabbi trust for the Company’s non-qualified savings plan and is included in the Condensed Consolidated Balance Sheets as other assets.