Debt Instrument, Repurchased Settlement Amount

No definition available.

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- Definition

The non cash portion of gains (losses) recorded on the extinguishment of debt related to the acceleration of deferred financing costs.

+ References

No definition available.

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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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-Publisher FASB
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-Topic 835
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-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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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 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

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.

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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

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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 470
-SubTopic 50
-Section 40
-Paragraph 2
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- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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- Definition

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), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

+ 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

+ Details

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- Definition

Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

+ 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 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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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Long-Term Debt Senior Notes (Details) - USD ($) $ in Thousands			3 Months Ended			6 Months Ended
	Jul. 16, 2018	Jun. 15, 2018	Sep. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Loss on extinguishment of debt				$ 0	$ 0	$ 0	$ (35)
Non-cash loss on extinguishment of debt						0	22
Cash paid for extinguishment of debt						0	$ 13
Current portion of Senior Notes, net of unamortized deferred financing costs (note 5)				342,301		342,301		$ 0
Senior Notes, net of unamortized deferred financing costs				$ 2,429,994		$ 2,429,994		2,769,663
6.50% Senior Notes due 2021
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.50%		6.50%
Unamortized Deferred Financing Costs				$ (2,310)		$ (2,310)		(2,656)
6.125% Senior Notes due 2022
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.125%		6.125%
Unamortized Deferred Financing Costs				$ (5,211)		$ (5,211)		(5,800)
6.50% Senior Notes due 2023
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.50%		6.50%
Unamortized Deferred Financing Costs				$ (3,342)		$ (3,342)		(3,707)
5.0% Senior Notes due 2024
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				5.00%		5.00%
Unamortized Deferred Financing Costs				$ (5,149)		$ (5,149)		(5,610)
5.625% Senior Notes due 2025
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				5.625%		5.625%
Unamortized Deferred Financing Costs				$ (6,261)		$ (6,261)		(6,714)
6.75% Senior Notes due 2026
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.75%		6.75%
Unamortized Deferred Financing Costs				$ (6,824)		$ (6,824)		(7,242)
Senior Notes [Member]
Debt Instrument [Line Items]
Principal Amount				2,801,392		2,801,392		2,801,392
Unamortized Deferred Financing Costs				(29,097)		(29,097)		(31,729)
Senior Notes, net of unamortized deferred financing costs				$ 2,772,295		$ 2,772,295		2,769,663
Senior Notes [Member] \| 6.50% Senior Notes due 2021
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.50%		6.50%
Debt Instrument, Redemption Price, Percentage		102.167%
Principal Amount				$ 344,611		$ 344,611		344,611
Current portion of Senior Notes, net of unamortized deferred financing costs (note 5)				$ 342,301		$ 342,301
Senior Notes, net of unamortized deferred financing costs								341,955
Senior Notes [Member] \| 6.125% Senior Notes due 2022
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.125%		6.125%
Principal Amount				$ 561,796		$ 561,796		561,796
Senior Notes, net of unamortized deferred financing costs				$ 556,585		$ 556,585		555,996
Senior Notes [Member] \| 6.50% Senior Notes due 2023
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.50%		6.50%
Principal Amount				$ 394,985		$ 394,985		394,985
Senior Notes, net of unamortized deferred financing costs				$ 391,643		$ 391,643		391,278
Senior Notes [Member] \| 5.0% Senior Notes due 2024
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				5.00%		5.00%
Principal Amount				$ 500,000		$ 500,000		500,000
Senior Notes, net of unamortized deferred financing costs				$ 494,851		$ 494,851		494,390
Senior Notes [Member] \| 5.625% Senior Notes due 2025
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				5.625%		5.625%
Principal Amount				$ 500,000		$ 500,000		500,000
Senior Notes, net of unamortized deferred financing costs				$ 493,739		$ 493,739		493,286
Senior Notes [Member] \| 6.75% Senior Notes due 2026
Debt Instrument [Line Items]
Senior Notes, interest rate, stated percentage				6.75%		6.75%
Principal Amount				$ 500,000		$ 500,000		500,000
Senior Notes, net of unamortized deferred financing costs				$ 493,176		$ 493,176		$ 492,758
Subsequent Event [Member] \| Senior Notes [Member] \| 6.50% Senior Notes due 2021
Debt Instrument [Line Items]
Debt Instrument, Repurchased Settlement Amount	$ 355,900
Loss on extinguishment of debt			$ 9,800
Non-cash loss on extinguishment of debt			2,300
Cash paid for extinguishment of debt			$ 7,500