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Commitments and Contingencies (Changes in Warranty Liability) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2020
Changes in the Company's warranty liability |  |  |  |
Balance at beginning of year |  | $ 96,153 | $ 91,646 | $ 88,839
Warranties issued |  | 39,476 | 34,627 | 29,505
Payments |  | (33,739) | (26,120) | (23,098)
Adjustments |  | 0 | (4,000) | (3,600)
Balance at end of year |  | 101,890 | 96,153 | 91,646
Movement In Self Insurance Reserve [Roll Forward] |  |  |  |
Balance at beginning of year |  | 189,131 | 194,180 | 177,765
Self-insurance provided |  | 21,926 | 19,665 | 15,399
Payments |  | (21,984) | (29,369) | (4,375)
Balance at end of year |  | 175,977 | 189,131 | 194,180
Increase (decrease) in self insurance reserve |  | 7,000 | 6,800 | (4,000)
Self Insurance |  |  |  |
Movement In Self Insurance Reserve [Roll Forward] |  |  |  |
Adjustments | [1] | $ (13,096) | $ 4,655 | $ 5,391
[1] | net changes in estimated probable recoveries related to self-insurance, which are recorded in receivables, to present our self-insurance liability on a gross basis; an adjustment to increase our previously recorded liability by $7.0 million in 2022 and $6.8 million in 2021; and an adjustment to reduce our previously recorded liability by $4.0 million in 2020.

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- Definition The increase (decrease) in insurance liability balances during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the period in the carrying amount of accrued known and estimated losses incurred for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's' compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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- Definition Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(4)) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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- Definition Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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