Retirement, Pension and Other Postretirement Plans - Fair Values of Pension Plan Assets (Detail) - Pension Plans - USD ($)	Oct. 31, 2022	Apr. 30, 2022	Oct. 31, 2021	Oct. 31, 2020
UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 333,851,000	$ 171,181	$ 639,589,000	$ 510,250,000
UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	152,752,000		377,536,000
UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,431,000		87,534,000
UNITED STATES | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	141,321,000		290,002,000
International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38,316,000		47,274,000	45,476,000
International | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,841,000		24,512,000
International | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	775,000		519,000
International | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,066,000		23,993,000
Cash | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	381,000		1,467,000
Cash | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	381,000		1,467,000
Cash | International | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	775,000		519,000
Cash | International | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	775,000		519,000
Money market funds | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	155,000		4,495,000
Money market funds | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	155,000		4,495,000
Basic materials | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	719,000		2,038,000
Basic materials | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	719,000		2,038,000
Consumer goods | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,802,000		4,360,000
Consumer goods | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,802,000		4,360,000
Financial | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,489,000		3,753,000
Financial | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,489,000		3,753,000
Healthcare | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,801,000		4,864,000
Healthcare | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,801,000		4,864,000
Industrial goods | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,713,000		3,640,000
Industrial goods | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,713,000		3,640,000
Technology | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,569,000		5,080,000
Technology | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,569,000		5,080,000
Mutual funds | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			52,319,000
Mutual funds | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			52,319,000
U.S. Government | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	29,252,000		89,614,000
U.S. Government | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	328,000		4,024,000
U.S. Government | UNITED STATES | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	28,924,000		85,590,000
Corporate | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,433,000		194,793,000
Corporate | UNITED STATES | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,433,000		194,793,000
Other | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,964,000		9,619,000
Other | UNITED STATES | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,964,000		9,619,000
Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,066,000		23,993,000	$ 24,496,000
Insurance contracts | International | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,066,000		23,993,000
Insurance contracts | International | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,066,000		23,993,000
Other | UNITED STATES | Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,474,000		1,494,000
Other | UNITED STATES | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,474,000		1,494,000
Real estate collective funds | UNITED STATES | Investments Measured at Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	51,961,000		44,056,000
Pooled investment funds | UNITED STATES | Investments Measured at Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	129,138,000		217,997,000
Pooled investment funds | International | Investments Measured at Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 19,475,000		$ 22,762,000