Debt Covenant, Asset Proceeds, Excess Proceeds

No definition available.

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- Definition

Debt Covenant, Indenture Agreement, Period After Notice

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Notice Period Prior to Redemption

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redemption Period, Change in Control, Percentage of Principal Amount Redeemable

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redemption Period, Percentage of Principal Amount Redeemable

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redemption Price Including Accrued Interest And Liquidated Damages, Percentage

+ 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

Reference 2: 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=34725769&loc=d3e28878-108400

+ Details

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Balance Type:	credit
Period Type:	instant

- 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

-Section S99

-Paragraph 1

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

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

+ Details

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- 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=6479336&loc=d3e64711-112823

+ Details

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ 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 210.5-02.17)

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

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Debt (5.875% Senior Notes) (Details) (USD $)	12 Months Ended			0 Months Ended
Debt (5.875% Senior Notes) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 25, 2014	Aug. 31, 2010	Mar. 19, 2013	Oct. 03, 2013
Debt Instrument [Line Items]
Stated interest rate					8.47%
Capitalized loan costs	$ 53,900,000us-gaap_UnamortizedDebtIssuanceExpense	$ 33,100,000us-gaap_UnamortizedDebtIssuanceExpense
Loss on extinguishment of debt	0	20,657,000	8,462,000
Termination of interest rate swap agreements	(1,121,000)	0	0
5.875% Senior Notes
Debt Instrument [Line Items]
Capitalized loan costs				4,600,000
5.875% Senior Notes \| Redemption, Period 2017
Debt Instrument [Line Items]
Redemption price percentage	104.406%
5.875% Senior Notes \| Redemption, Period 2018
Debt Instrument [Line Items]
Redemption price percentage	102.938%
5.875% Senior Notes \| Redemption, Period 2019
Debt Instrument [Line Items]
Redemption price percentage	101.469%
5.875% Senior Notes \| 2020 and thereafter
Debt Instrument [Line Items]
Redemption price percentage	100.00%
Senior Notes \| 5.875% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	5.875%	5.875%		5.875%		5.875%
Senior Notes \| 5.875% Senior Notes \| Redemption, Period 2017
Debt Instrument [Line Items]
Redemption price percentage				100.00%
Senior Notes \| 5.875% Senior Notes \| Redemption, Period 2019
Debt Instrument [Line Items]
Redemption price percentage				102.938%
Senior Notes \| 5.875% Senior Notes \| 2020 and thereafter
Debt Instrument [Line Items]
Redemption price percentage				101.958%
Senior Notes \| 5.125% Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount				250,000,000.0		300,000,000.0
Stated interest rate	5.125%	5.125%				5.125%
Percentage of principal amount redeemable	101.00%
Redemption price percentage	105.125%
Redemption period, principal amount redeemable	35.00%
Debt covenant, asset proceeds, excess proceeds	25,000,000
Debt covenant, indenture agreement, period after notice	60 days
Capitalized loan costs	6,800,000
Senior Notes \| 5.125% Senior Notes \| Redemption, Period 2018
Debt Instrument [Line Items]
Redemption price percentage	102.563%
Senior Notes \| 5.125% Senior Notes \| Redemption, Period 2019
Debt Instrument [Line Items]
Redemption price percentage	101.708%
Senior Notes \| 5.125% Senior Notes \| 2020 and thereafter
Debt Instrument [Line Items]
Redemption price percentage	100.854%
Senior Notes \| 5.125% Senior Notes \| Maximum
Debt Instrument [Line Items]
Notice period prior to redemption	0 years 0 months 60 days
Senior Notes \| 5.125% Senior Notes \| Minimum
Debt Instrument [Line Items]
Notice period prior to redemption	0 years 0 months 30 days
Senior Notes \| 5.875% Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount							250,000,000.0
Stated interest rate	5.875%	5.875%				587500.00%
Percentage of principal amount redeemable	101.00%
Redemption price percentage	100.00%
Redemption period, principal amount redeemable	35.00%
Debt Instrument, Redemption Price Including Accrued Interest And Liquidated Damages, Percentage	105.875%
Debt covenant, asset proceeds, excess proceeds	25,000,000
Debt covenant, indenture agreement, period after notice	60 days
Capitalized loan costs	5,900,000
Loss on extinguishment of debt	17,700,000
Senior Notes \| 5.875% Senior Notes \| Maximum
Debt Instrument [Line Items]
Notice period prior to redemption	0 years 0 months 60 days
Senior Notes \| 5.875% Senior Notes \| Minimum
Debt Instrument [Line Items]
Notice period prior to redemption	0 years 0 months 30 days
Senior Notes \| 7.75% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	7.75%
Interest Rate Swap \| Senior Notes \| 5.875% Senior Notes
Debt Instrument [Line Items]
Termination of interest rate swap agreements	$ 4,000,000