Represents the issue price of debt instrument as a percentage of par amount.

No definition available.

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- Definition

Represents the ratio of consolidated adjusted earnings before interest, taxes, depreciation and amortization to interest expense, which is necessary to be maintained under the terms of the debt covenants.

+ References

No definition available.

+ Details

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- Definition

The percentage points added to the variable rate to compute the make-whole premium added to the principal amount of the senior notes in determining the redemption price.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the make-whole premium added to the principal amount of the senior notes in determining the redemption price.

+ References

No definition available.

+ Details

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- Definition

Number of days the redemption of senior notes must occur within from the date of the equity offering.

+ References

No definition available.

+ Details

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- Definition

The percentage of senior notes that may be redeemed with proceeds from certain equity offerings.

+ References

No definition available.

+ Details

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- Definition

Percentage of Senior Notes That Must Remain Outstanding.

+ References

No definition available.

+ 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 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Topic 835

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-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

Reference 3: 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)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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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=6479336&loc=d3e64711-112823

+ Details

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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- Details

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Debt (Details) (USD $)	12 Months Ended	0 Months Ended
Debt (Details) (USD $)	Dec. 31, 2014	Feb. 12, 2010	Apr. 14, 2010	Dec. 31, 2013	Dec. 16, 2014
2017 Senior Notes
Debt
Interest rate (as a percent)	9.75%
Interest coverage ratio	2.0
2017 Senior Notes \| Redemption Period One
Debt
Redemption price (as a percent)	104.875%
2017 Senior Notes \| Redemption Period Two
Debt
Redemption price (as a percent)	102.438%
2017 Senior Notes \| Redemption Period Three
Debt
Redemption price (as a percent)	100.00%
2017 Notes-Issued February 2010
Debt
Face amount of debt		$ 200
Interest rate (as a percent)		9.75%
Issue price as a percentage of par		98.73%
Unamortized discount	800,000	2,500,000		1,100,000
2017 Notes-Issued April 2010
Debt
Face amount of debt			150
Issue price as a percentage of par			98.75%
Unamortized discount	600,000		1,900,000	800,000
2019 Senior Notes
Debt
Face amount of debt					577.9
Interest rate (as a percent)	7.25%				7.25%
Unamortized discount	284,900,000				287,500,000
Interest coverage ratio	2.25
Effective interest rate (as a percent)	18.31%
2019 Senior Notes \| Redemption Period One
Debt
Redemption price (as a percent)	101.208%
2019 Senior Notes \| Redemption Period Two
Debt
Redemption price (as a percent)	100.00%
2020 Senior Notes
Debt
Face amount of debt					222.1
Interest rate (as a percent)	7.50%				7.50%
Unamortized discount	116,900,000				$ 117,700,000
Interest coverage ratio	2.25
Effective interest rate (as a percent)	16.72%
2020 Senior Notes \| Redemption Period One
Debt
Redemption price (as a percent)	103.75%
Percentage of senior notes that may be redeemed with proceeds from certain equity offerings (as a percent)	35.00%
Percentage of senior notes that must remain outstanding (as a percent)	65.00%
Number of days the redemption of senior notes must occur within from the date of the equity offering	120 days
2020 Senior Notes \| Redemption Period Two
Debt
Redemption price (as a percent)	101.875%
Senior notes redemption variable rate basis of make-whole premium	Treasury yield
Senior notes redemption basis spread of make-whole premium (as a percent)	0.50%
2020 Senior Notes \| Redemption Period Three
Debt
Redemption price (as a percent)	100.00%
2020 Senior Notes \| Equity Offering Net Proceeds
Debt
Redemption price (as a percent)	107.50%