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Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - Stock Options [Member] shares in Thousands | 3 Months Ended
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Dec. 31, 2020 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Number of Options, beginning balance | shares | 2,078
Options granted, Number of options | shares | 747
Options vested, Number of options | shares | (652)
Options forfeited, Number of options | shares | (3)
Number of Options, ending balance | shares | 2,170
Weighted-Average Grant Date Fair Value Per Share, beginning balance | $ / shares | $ 24.69
Options granted, Weighted-Average Grant Date Fair Value Per Share | $ / shares | 27.73
Options vested, Weighted-Average Grant Date Fair Value Per Share | $ / shares | 25.81
Options forfeited, Weighted-Average Grant Date Fair Value Per Share | $ / shares | 25.18
Weighted-Average Grant Date Fair Value Per Share, ending balance | $ / shares | $ 25.40

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of non-vested options forfeited. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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