Stockholders' Equity (Details) - USD ($)						12 Months Ended
	Oct. 27, 2020	Aug. 14, 2020	May 15, 2020	Feb. 14, 2020	Nov. 15, 2019	Jul. 31, 2020	Jul. 31, 2019	Sep. 29, 2020	Sep. 23, 2020	Jun. 03, 2020	Mar. 04, 2020	Dec. 04, 2019	Sep. 24, 2019	Dec. 06, 2018
Class of Stock [Line Items]
Shelf registration authorized amount														$ 400,000,000
Stock Repurchase Program
Amount that remains to be expended under the current board repurchase authorization						$ 8,664,000
Maximum amount authorized by the board of directors for the repurchase of shares of the company's common stock						$ 100,000,000
Shares acquired (in shares)						0	0
Dividends
Dividends declared (in dollars per share)										$ 0.10	$ 0.10	$ 0.10	$ 0.10
Dividends paid (in dollars per share)			$ 0.10	$ 0.10	$ 0.10
Scenario, Forecast
Dividends
Dividends paid (in dollars per share)	$ 0.10
Subsequent Event
Stock Repurchase Program
Amount that remains to be expended under the current board repurchase authorization									$ 8,664,000
Maximum amount authorized by the board of directors for the repurchase of shares of the company's common stock								$ 100,000,000
Dividends
Dividends declared (in dollars per share)								$ 0.10
Dividends paid (in dollars per share)		$ 0.10