Accrued Expenses Product Liability Contingency (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended		42 Months Ended
	Oct. 31, 2021	Apr. 30, 2020	Apr. 30, 2020	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Loss Contingencies [Line Items]
Loss Contingency, Receivable	$ 16,773			$ 79,269
Standard and Extended Product Warranty Accrual	145,062			157,351	$ 201,886	$ 258,831
Water intrusion related [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 324,400	$ 324,400
Standard and Extended Product Warranty Accrual	54,700			79,500
Water intrusion related [Member] | Warranty Obligations [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	11,800	24,400	24,400
Other Assets [Member] | Water intrusion related [Member]
Loss Contingencies [Line Items]
Loss Contingency, Receivable	5,800			$ 68,400
Product Liability Contingency, Third Party Recovery			$ 152,600
Other Assets [Member] | Water intrusion related [Member] | Warranty Obligations [Member]
Loss Contingencies [Line Items]
Product Liability Contingency, Third Party Recovery	$ 11,800	$ 24,400