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Stock-Based Compensation (Exercise Price Range) (Details) - Stock Options shares in Thousands | 12 Months Ended
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Sep. 30, 2018 $ / shares shares
$7.40 - $8.30 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | $ 7.40
Exercise Price Range, Upper Range | $ 8.30
Options Outstanding | shares | 694
Weighted Average Remaining Contractual Term | 3 years 1 month 28 days
Weighted Average Exercise Price, Options Outstanding | $ 8.00
Number of Shares Vested, Options Exercisable | shares | 604
Weighted Average Exercise Price, Options Exercisable | $ 7.97
$8.31 - $9.68 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 8.31
Exercise Price Range, Upper Range | $ 9.68
Options Outstanding | shares | 551
Weighted Average Remaining Contractual Term | 3 years 3 months 7 days
Weighted Average Exercise Price, Options Outstanding | $ 9.39
Number of Shares Vested, Options Exercisable | shares | 515
Weighted Average Exercise Price, Options Exercisable | $ 9.42
$9.69 - $10.33 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 9.69
Exercise Price Range, Upper Range | $ 10.33
Options Outstanding | shares | 644
Weighted Average Remaining Contractual Term | 5 years 4 months 17 days
Weighted Average Exercise Price, Options Outstanding | $ 10.14
Number of Shares Vested, Options Exercisable | shares | 129
Weighted Average Exercise Price, Options Exercisable | $ 9.89
$10.34 - $10.81 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 10.34
Exercise Price Range, Upper Range | $ 10.81
Options Outstanding | shares | 554
Weighted Average Remaining Contractual Term | 3 years 9 months 15 days
Weighted Average Exercise Price, Options Outstanding | $ 10.63
Number of Shares Vested, Options Exercisable | shares | 421
Weighted Average Exercise Price, Options Exercisable | $ 10.72
$10.82 - $12.63 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 10.82
Exercise Price Range, Upper Range | $ 12.63
Options Outstanding | shares | 523
Weighted Average Remaining Contractual Term | 4 years 4 months 10 days
Weighted Average Exercise Price, Options Outstanding | $ 12.00
Number of Shares Vested, Options Exercisable | shares | 379
Weighted Average Exercise Price, Options Exercisable | $ 11.99
$12.64 - $13.50 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 12.64
Exercise Price Range, Upper Range | $ 13.50
Options Outstanding | shares | 548
Weighted Average Remaining Contractual Term | 5 years 6 months 18 days
Weighted Average Exercise Price, Options Outstanding | $ 13.50
Number of Shares Vested, Options Exercisable | shares | 185
Weighted Average Exercise Price, Options Exercisable | $ 13.50
$7.40 - $14.75 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 13.51
Exercise Price Range, Upper Range | $ 14.75
Options Outstanding | shares | 12
Weighted Average Remaining Contractual Term | 2 years 9 months 26 days
Weighted Average Exercise Price, Options Outstanding | $ 14.75
Number of Shares Vested, Options Exercisable | shares | 12
Weighted Average Exercise Price, Options Exercisable | $ 14.75
$7.40 - $14.75 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price Range, Lower Range | 7.40
Exercise Price Range, Upper Range | $ 14.75
Options Outstanding | shares | 3,526
Weighted Average Remaining Contractual Term | 4 years 2 months 23 days
Weighted Average Exercise Price, Options Outstanding | $ 10.49
Number of Shares Vested, Options Exercisable | shares | 2,245
Weighted Average Exercise Price, Options Exercisable | $ 10.09

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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 The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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 (c)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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