Debt instrument, convertible, principal amount used in conversion rate calculation.

No definition available.

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- Definition

Percent restrictions on payment of dividends per restricted payments basket

+ References

No definition available.

+ Details

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- Definition

Restricted Payments Basket, as defined in the indenture governing the Company's 2018 Senior Notes

+ References

No definition available.

+ Details

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- Definition

Restrictions on payment of dividends - beginning amount for calculation

+ References

No definition available.

+ Details

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- Definition

Including the current and noncurrent portions, the carrying value of convertible subordinated debt, as of the balance sheet date, initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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Period Type:	duration

- Definition

Number of shares of stock issued attributable to transactions classified as other.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Debt Senior Notes (Details) $ / shares in Units, shares in Millions	9 Months Ended	12 Months Ended					24 Months Ended	48 Months Ended
	Sep. 30, 2017 USD ($) $ / shares shares	Jul. 31, 2023	Jul. 31, 2022	Jan. 15, 2021	Jan. 14, 2020	Jan. 14, 2019	Jul. 31, 2025	Jul. 31, 2021	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Restricted Payments Basket	$ 220,400,000								$ 144,900,000
2025 Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 250,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.625%
Debt Instrument, Redemption Price, Percentage		101.406%	102.813%				100.00%	104.219%
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.75%
Debt Instrument, Redemption Price, Percentage				100.00%	101.688%	103.375%
2018 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible senior subordinated notes	$ 86,250,000
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument, Convertible, Conversion Ratio	30.9478
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation	$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 32.31
Stock Issued During Period, Shares, Other \| shares	2.7
2017 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible senior subordinated notes	$ 57,500,000
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 23.80
Stock Issued During Period, Shares, Other \| shares	2.4
Base of restricted payments basket income calculation [Member]
Debt Instrument [Line Items]
Other Restrictions on Payment of Dividends	$ 125,000,000
Percentage of our aggregate consolidated net income added to base amount of calculation [Member]
Debt Instrument [Line Items]
Percent restrictions on payment of dividends	50.00%
Percentage of our aggregate consolidated net income subtracted from base amount of calculation [Member]
Debt Instrument [Line Items]
Percent restrictions on payment of dividends	100.00%
Percentage of net cash proceeds from sale of qualified equity interests added to base and income/loss amount in calculation [Member]
Debt Instrument [Line Items]
Percent restrictions on payment of dividends	100.00%