Indebtedness - Narrative (Details)				1 Months Ended		3 Months Ended			12 Months Ended
	Oct. 05, 2021 USD ($)	Mar. 30, 2020 USD ($)	Apr. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Jun. 30, 1997 USD ($) instrument	Oct. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Jan. 29, 2021 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)	Jun. 27, 2019 USD ($)	Jun. 01, 2018 USD ($)	Apr. 26, 2007 USD ($)
Principal payments on long-term debt in fiscal years
Fiscal 2022						$ 0			$ 0
Fiscal 2023						0			0
Fiscal 2024						0			0
Fiscal 2025						27,000,000			27,000,000
Fiscal 2026						243,000,000			243,000,000
After fiscal 2026						425,000,000			425,000,000
Total long-term debt						691,242,000			691,242,000	$ 791,123,000
6.625% Senior Notes
Principal payments on long-term debt in fiscal years
Interest expense, debt									$ 8,400,000	8,400,000	$ 8,400,000
Debt instrument, basis spread on variable rate									0.30%
Senior Notes | $270 million term loan
Principal payments on long-term debt in fiscal years
Debt instrument, term	5 years
Carrying amount of long-term debt						270,000,000			$ 270,000,000	0
Total long-term debt						270,000,000			270,000,000
Interest expense, debt									200,000	0	0
Aggregate principal amount of notes issued	$ 270,000,000					270,000,000			270,000,000
Accordion feature, increase limit	100,000,000
Quarterly principal payment	$ 6,750,000
Senior Notes | $200 million and $300 million term loans
Principal payments on long-term debt in fiscal years
Interest expense, debt									3,100,000	5,200,000	7,500,000
Aggregate principal amount of notes issued				$ 500,000,000
Senior Notes | $200 million term loan
Principal payments on long-term debt in fiscal years
Debt instrument, term				3 years
Carrying amount of long-term debt						0			0	100,000,000
Aggregate principal amount of notes issued				$ 200,000,000		200,000,000			200,000,000
Early repayment of senior debt						100,000,000				100,000,000
Senior Notes | $300 million term loan
Principal payments on long-term debt in fiscal years
Debt instrument, term				5 years
Carrying amount of long-term debt						0			0	180,000,000
Aggregate principal amount of notes issued				$ 300,000,000		300,000,000			300,000,000
Early repayment of senior debt						170,000,000	$ 10,000,000			120,000,000
Senior Notes | $190 million term loan
Principal payments on long-term debt in fiscal years
Debt instrument, term		3 years
Carrying amount of long-term debt						0			0	90,000,000
Interest expense, debt									300,000	2,400,000
Aggregate principal amount of notes issued		$ 190,000,000.0				$ 190,000,000			$ 190,000,000
Early repayment of senior debt								$ 90,000,000		100,000,000
Interest rate percentage						0.75%			0.75%
Senior Notes | Series A and Series B Senior Notes
Principal payments on long-term debt in fiscal years
Interest expense, debt									$ 7,700,000	7,700,000	2,600,000
Senior Notes | Series A and Series B Senior Notes | Debt Instrument, Redemption, Period One
Principal payments on long-term debt in fiscal years
Debt instrument, redemption price, percentage			10.00%
Senior Notes | Series A and Series B Senior Notes | Debt Instrument, Redemption, Period Two
Principal payments on long-term debt in fiscal years
Debt instrument, redemption price, percentage			100.00%
Senior Notes | Series A and Series B Senior Notes | Debt Instrument, Redemption, Period Three
Principal payments on long-term debt in fiscal years
Debt instrument, redemption price, percentage			100.00%
Senior Notes | 3.81% series A senior notes
Principal payments on long-term debt in fiscal years
Carrying amount of long-term debt						$ 100,000,000			$ 100,000,000	100,000,000
Aggregate principal amount of notes issued			$ 100,000,000									$ 100,000,000
Interest rate percentage			3.81%			3.81%			3.81%
Senior Notes | 3.91% series B senior notes
Principal payments on long-term debt in fiscal years
Carrying amount of long-term debt						$ 100,000,000			$ 100,000,000	100,000,000
Aggregate principal amount of notes issued			$ 100,000,000									$ 100,000,000
Interest rate percentage			3.91%			3.91%			3.91%
Senior Notes | 6.625% Senior Notes
Principal payments on long-term debt in fiscal years
Aggregate principal amount of notes issued														$ 125,000,000
Interest rate percentage						6.625%			6.625%					6.625%
Percentage of par value at which debt was issued														98.513%
Debt discount, unamortized														$ 1,900,000
Effective interest rate						6.741%			6.741%
Redemption price as a percentage of the principal amount upon the occurrence of both a change of control and downgrade of rating									101.00%
Debentures
Principal payments on long-term debt in fiscal years
Interest expense, debt									$ 8,000,000	8,000,000	7,900,000
Aggregate principal amount of notes issued					$ 175,000,000
Interest rate percentage					7.80%
Amount paid to terminate forward-starting interest rate swap agreements					$ 23,700,000
Number of terminated forward-starting interest rate swap agreements | instrument					3
Derivative, notional amount					$ 125,000,000
Deferred income amount at the time of swap termination					$ 18,700,000
Debentures | Coupon 7.125% Debt Notes
Principal payments on long-term debt in fiscal years
Debt instrument, term					10 years
Aggregate principal amount of notes issued					$ 75,000,000
Interest rate percentage					7.125%
Debentures | 7.8% debentures
Principal payments on long-term debt in fiscal years
Debt instrument, term					30 years
Carrying amount of long-term debt						$ 100,000,000			$ 100,000,000	100,000,000
Total long-term debt					$ 100,000,000
Interest rate percentage					7.80%	7.80%			7.80%
Revolving Credit Facility | Unsecured Revolving Credit Facility
Principal payments on long-term debt in fiscal years
Debt instrument, term	5 years
Maximum borrowing capacity under credit facility	$ 600,000,000												$ 600,000,000
Accordion feature	300,000,000
Carrying amount of long-term debt						$ 0			$ 0	0
Unused borrowing capacity						596,900,000			596,900,000	597,500,000
Interest expense, debt									0	800,000	$ 1,900,000
Standby Letters of Credit | Unsecured Revolving Credit Facility
Principal payments on long-term debt in fiscal years
Maximum borrowing capacity under credit facility	10,000,000
Total long-term debt						$ 3,100,000			$ 3,100,000	$ 2,500,000
Swingline Loan | Unsecured Revolving Credit Facility
Principal payments on long-term debt in fiscal years
Maximum borrowing capacity under credit facility	$ 30,000,000