Fair Value Measurements Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

The following table summarizes the Company’s assets and liabilities that are measured at fair value in the accompanying balance sheets and where they are classified within the fair value hierarchy as of September 30, 2016:

	Level 1		Level 2		Level 3
	(in thousands)
Assets:
Derivatives (1)	$	—	$	216,847	$	—
Liabilities:
Derivatives (1)	$	—	$	155,764	$	—
Net Profits Plan (1)	$	—	$	—	$	1,162

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⁽¹⁾ This represents a financial asset or liability that is measured at fair value on a recurring basis.

The following table summarizes the Company’s assets and liabilities that are measured at fair value in the accompanying balance sheets and where they were classified within the fair value hierarchy as of December 31, 2015:

	Level 1		Level 2		Level 3
	(in thousands)
Assets:
Derivatives (1)	$	—	$	488,411	$	—
Total property and equipment, net (2)	$	—	$	—	$	124,813
Liabilities:
Derivatives (1)	$	—	$	8	$	—
Net Profits Plan (1)	$	—	$	—	$	7,611

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⁽¹⁾ This represents a financial asset or liability that is measured at fair value on a recurring basis.

⁽²⁾ This represents a non-financial asset that is measured at fair value on a nonrecurring basis.

Net Profit Plan Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table reflects the activity for the Company’s Net Profits Plan liability measured at fair value using Level 3 inputs:

	For the Nine Months Ended September 30, 2016
	(in thousands)
Beginning balance	$	7,611
Net increase in liability (1)	20,389
Net settlements (1) (2)	(26,838		)
Transfers in (out) of Level 3	—
Ending balance	$	1,162

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⁽¹⁾  Net changes in the Company’s Net Profits Plan liability are shown in the Change in Net Profits Plan liability line item in the accompanying statements of operations.

⁽²⁾  Settlements represent cash payments made or accrued under the Net Profits Plan. The amount in the table includes cash payments made or accrued under the Net Profits Plan of $21.6 million for the nine months ended September 30, 2016, as a result of the divestitures of properties subject to the Net Profits Plan.

Long Term Debt Fair Value [Table Text Block]

The following table reflects the fair value of the Senior Notes and Senior Convertible Notes measured using Level 1 inputs based on quoted secondary market trading prices. The Senior Notes and Senior Convertible Notes were not presented at fair value on the accompanying balance sheets as of September 30, 2016, or December 31, 2015, as they were recorded at carrying value, net of any unamortized discount and deferred financing costs. Please refer to Note 5 - Long-Term Debt for discussion of the Company’s repurchase of a portion of its Senior Notes during the first quarter of 2016 and the bifurcation of the Senior Convertible Notes.

	As of September 30, 2016				As of December 31, 2015
	Principal Amount		Fair Value		Principal Amount		Fair Value
	(in thousands)
6.50% Senior Notes due 2021	$	346,955	$	354,761	$	350,000	$	262,938
6.125% Senior Notes due 2022	$	561,796	$	567,414	$	600,000	$	440,250
6.50% Senior Notes due 2023	$	394,985	$	400,910	$	400,000	$	296,000
5.0% Senior Notes due 2024	$	500,000	$	472,220	$	500,000	$	334,065
5.625% Senior Notes due 2025	$	500,000	$	470,000	$	500,000	$	326,875
6.75% Senior Notes due 2026	$	500,000	$	506,250	$	—	$	—
1.50% Senior Convertible Notes due 2021	$	172,500	$	210,990	$	—	$	—