2017 Convertible Subordianted Debt

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- Definition

2018 Convertible Subordinated Debt

+ References

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- Definition

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

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- Definition

Percent restrictions on payment of dividends per restricted payments basket

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- Definition

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

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- Definition

Restrictions on payment of dividends - beginning amount for calculation

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- 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

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- Definition

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

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-Name Accounting Standards Codification

-Glossary Conversion Rate

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- Definition

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

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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.

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Percentage of principal amount of debt redeemed.

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Number of shares of stock issued during the period that is attributable to transactions involving issuance of stock not separately disclosed.

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Debt Senior Notes (Details) $ / shares in Units, shares in Millions	9 Months Ended	12 Months Ended		24 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares	Nov. 14, 2016	Nov. 14, 2015	Nov. 15, 2018	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Senior notes	$ 228,769,000				$ 228,469,000
Convertible senior subordinated notes due 2018	86,250,000				86,250,000
Convertible senior subordinated notes due 2017	$ 57,500,000				57,500,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		102.156%	104.313%	100.00%
Preferred Stock, Dividend Rate, Percentage	9.75%
Restricted Payments Basket	$ 159,600,000				$ 148,600,000
2018 Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.625%
2017 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Debt Instrument, Convertible, Conversion Ratio	42.0159
Debt Instrument Convertible Principal Amount Used In Conversion Rate Calculation	$ 1,000
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 23.80
Stock Issued During Period, Shares, Other \| shares	2.4
2018 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
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
Face Value [Member]
Debt Instrument [Line Items]
Senior notes	$ 230,000,000
Base of restricted payments basket income calculation [Member]
Debt Instrument [Line Items]
Other Restrictions on Payment of Dividends	$ 40,000,000
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%