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Stock-based Compensation (Schedule of Restricted Stock Unit Grants For The Period) (Details) shares in Thousands | 6 Months Ended
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Mar. 31, 2018 installment shares
TSR Units [Member] |
Granted, shares | 184
Performance-Based Restricted Stock Units [Member] |
Granted, shares | 461
Award vesting period | 3 years
Number of equal annual installments | installment | 3
Service-Based Restricted Stock Units [Member] |
Granted, shares | 710
Number of equal annual installments | installment | 3
Catch-Up Provision [Member] | Maximum | Performance-Based Restricted Stock Units [Member] |
Granted, shares | 189
No Catch-Up Provision [Member] | Maximum | Performance-Based Restricted Stock Units [Member] |
Granted, shares | 250

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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