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Commitments and Contingencies (Changes in the Warranty Liability) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2015 | Aug. 31, 2014 | Aug. 31, 2015 | Aug. 31, 2014 | May. 31, 2015 | Nov. 30, 2014 | May. 31, 2014 | Nov. 30, 2013
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Self Insurance Reserve |  | $ 80,601 | $ 88,309 | $ 80,601 | $ 88,309 | $ 80,136 | $ 86,574 | $ 90,458 | $ 92,214
Expenses Associated with Self Insurance | [1] | 4,694 | 3,108 | 11,919 | 8,761 |  |  |  |
Payments, Net of Recoveries for Self Insurance | [2] | (4,229) | (5,257) | (17,892) | (12,666) |  |  |  |
Changes in the Warranty Liability |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | 46,472 | 40,937 | 45,196 | 48,704 |  |  |  |
Warranties issued |  | 6,325 | 4,546 | 15,209 | 12,332 |  |  |  |
Payments |  | (5,285) | (10,633) | (19,927) | (30,795) |  |  |  |
Adjustments | [3] | 1,130 | 7,546 | 8,164 | 12,155 |  |  |  |
Balance at end of period |  | 48,642 | 42,396 | 48,642 | 42,396 |  |  |  |
Water Intrusion [Member] |  |  |  |  |  |  |  |  |
Changes in the Warranty Liability |  |  |  |  |  |  |  |  |
Payments |  | $ (1,100) | $ (7,200) | $ (8,600) | $ (21,300) |  |  |  |
[1] | These expenses are included in selling, general and administrative expenses and are largely offset by contributions from subcontractors participating in the wrap-up policy.
[2] | Recoveries are reflected in the period we receive funds from subcontractors and/or their insurers.
[3] | As discussed below, adjustments for the three months and nine months ended August 31, 2015 and 2014 were primarily comprised of the reclassification of estimated minimum probable recoveries to receivables. Adjustments for the nine months ended August 31, 2014 also included a reclassification of estimated minimum probable recoveries to establish a separate accrual for a water intrusion-related inquiry.

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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=51674963&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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