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Capitalized Interest (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Rollforward of capitalized interest |  |  |
Capitalized interest, beginning of period |  | $ 208.0 | $ 198.5
Interest incurred | [1] | 42.2 | 40.4
Interest expensed: |  |  |
Charged to cost of sales |  | (35.2) | (33.6)
Written off with inventory impairments |  | 0.0 | (0.1)
Capitalized interest, end of period |  | 215.0 | 205.2
Financial Services [Member] |  |  |
Rollforward of capitalized interest |  |  |
Interest incurred |  | $ 1.6 | $ 1.6
[1] | Interest incurred includes interest incurred on the Company's financial services mortgage repurchase facility of $1.6 million in both the three months ended December 31, 2015 and 2014.

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- Definition Total interest costs incurred during the period and either capitalized or charged against earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition Carrying amount as of the balance sheet date of interest costs that were capitalized to properties under development during the land development and construction period of a project, and which are included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition The amount of interest costs that had been capitalized to inventory which were charged to cost of sales during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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