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Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2012 | Nov. 30, 2014 | Nov. 30, 2013 | Nov. 30, 2012
Changes in the Company's warranty liability |  |  |  |  |  |  |
Balance at beginning of year | $ 67,693 us-gaap_StandardProductWarrantyAccrual | $ 48,704 us-gaap_StandardProductWarrantyAccrual |  | $ 47,822 us-gaap_StandardProductWarrantyAccrual |  | $ 67,693 us-gaap_StandardProductWarrantyAccrual |
Warranties issued |  | 18,479 us-gaap_StandardProductWarrantyAccrualWarrantiesIssued | [1] | 14,261 us-gaap_StandardProductWarrantyAccrualWarrantiesIssued | [1] | 8,416 us-gaap_StandardProductWarrantyAccrualWarrantiesIssued | [1]
Payments |  | (39,458)us-gaap_StandardProductWarrantyAccrualPayments |  | (45,338)us-gaap_StandardProductWarrantyAccrualPayments |  | (19,701)us-gaap_StandardProductWarrantyAccrualPayments |
Adjustments | (11,200)us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease | 17,471 us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease | [2] | 31,959 us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease | [2] | (8,586)us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease | [2]
Balance at end of year |  | 45,196 us-gaap_StandardProductWarrantyAccrual |  | 48,704 us-gaap_StandardProductWarrantyAccrual |  | 47,822 us-gaap_StandardProductWarrantyAccrual |
Self Insurance Reserve, Balance at beginning of year | 94,823 us-gaap_SelfInsuranceReserve | 92,214 us-gaap_SelfInsuranceReserve |  | 93,349 us-gaap_SelfInsuranceReserve |  | 94,823 us-gaap_SelfInsuranceReserve |
Expenses Associated with Self Insurance |  | 13,491 kbh_ExpensesAssociatedWithSelfInsurance | [3] | 8,239 kbh_ExpensesAssociatedWithSelfInsurance | [3] | 7,894 kbh_ExpensesAssociatedWithSelfInsurance | [3]
Payments, Net of Recoveries for Self Insurance |  | (19,131)kbh_PaymentsNetofRecoveriesforSelfInsurance | [4] | (9,374)kbh_PaymentsNetofRecoveriesforSelfInsurance | [4] | (10,168)kbh_PaymentsNetofRecoveriesforSelfInsurance | [4]
Adjustments in Self Insurance Reserve |  | 0 us-gaap_IncreaseDecreaseInSelfInsuranceReserve |  | 0 us-gaap_IncreaseDecreaseInSelfInsuranceReserve |  | 800 us-gaap_IncreaseDecreaseInSelfInsuranceReserve |
Self Insurance Reserve, Balance at end of year |  | $ 86,574 us-gaap_SelfInsuranceReserve |  | $ 92,214 us-gaap_SelfInsuranceReserve |  | $ 93,349 us-gaap_SelfInsuranceReserve |
[1] | (a)The year-over-year increase in the expense associated with warranties issued in 2014 and 2013 reflected higher housing revenues in each of those years. Additionally, in 2013, we increased the warranty accrual rate per home based on our historical claims experience.
[2] | (b)Adjustments in 2014 were primarily comprised of reclassifications of estimated minimum probable recoveries to receivables and a reclassification to establish a separate accrual for a water intrusion-related inquiry from the Office of the Attorney General of the State of Florida (the “Attorney General’s Office”). These items had no impact on our consolidated statements of operations. Adjustments in 2013 were comprised of charges associated with water intrusion-related issues in central and southwest Florida. In 2012, favorable warranty adjustments were partly offset by similar water intrusion-related charges.
[3] | a)These expenses are included in selling, general and administrative expenses and are largely offset by contributions from subcontractors participating in the wrap-up policy.
[4] | (b)Recoveries are reflected in the period we receive funds from subcontractors and/or their insurers.

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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 No definition available. + Details
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- Definition Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(4)) -URI http://asc.fasb.org/extlink&oid=6398077&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://www.xbrl.org/2003/role/presentationRef -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=6877327&loc=d3e13212-122682 + Details
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- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(1),(c)(5) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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- Definition Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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