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Contingencies - Warranty (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 30 Months Ended
--- | --- | --- | ---
Mar. 31, 2017 USD ($) home | Mar. 31, 2016 USD ($) | Mar. 31, 2017 USD ($) home | Mar. 31, 2016 USD ($) | Mar. 31, 2017 USD ($) home
Loss Contingencies [Line Items] |  |  |  |  |
Standard product warranty length, minimum |  |  | 1 year |  |
Standard product warranty length, maximum |  |  | 2 years |  |
Limited product warranty length (up to) |  |  | 10 years |  |
Movement in Standard Product Warranty Accrual [Roll Forward] |  |  |  |  |
Balance at beginning of period | $ 32,309 | $ 28,913 | $ 39,131 | $ 27,681 |
Accruals for warranties issued | 3,249 | 3,086 | 5,907 | 5,701 |
Changes in liability related to warranties existing in prior periods | 2,463 | 20,053 | 7,855 | 30,653 |
Payments made | (12,635) | (11,149) | (27,507) | (23,132) |
Balance at end of period | 25,386 | 40,903 | 25,386 | 40,903 | $ 25,386
Insurance recoveries | 2,300 | 19,800 | 6,200 | 36,200 |
Excess insurance recovery |  | 3,600 |  | 3,600 |
Specific Warranty Issue | Florida |  |  |  |  |
Movement in Standard Product Warranty Accrual [Roll Forward] |  |  |  |  |
Balance at beginning of period |  |  | 22,600 |  |
Balance at end of period | 11,400 |  | 11,400 |  | 11,400
Product warranty expense | $ 1,500 | $ 19,600 | $ 6,100 | $ 28,600 | $ 84,700
Homes likely to require more than minor repairs | home | 705 |  | 705 |  | 705
Movement on number of homes likely to be repaired | home |  |  | 15 |  |
Homes have been repaired | home | 550 |  | 550 |  | 550
Product warranty accrual, payments | $ 7,300 |  | $ 17,300 |  |
Estimated remaining warranty costs | $ 4,100 |  | $ 4,100 |  | $ 4,100

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- Definition The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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