v2.4.0.8

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Measurements

Recurring Fair Value Measurements

		Fair Value as of December 31, 2013
		Level 1			Level 2			Level 3			Total
		(In thousands)
Assets:
Short-term investments:
Available-for-sale equity securities from energy industry		$	96,080		$	862		$	—		$	96,942
Available-for-sale debt securities:
Corporate debt securities			—			19,388			—			19,388
Mortgage-backed debt securities			—			210			—			210
Mortgage-CMO debt securities			—			20			—			20
Asset-backed debt securities			658			—			—			658
​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total short-term investments		$	96,738		$	20,480		$	—		$	117,218
​	​	​	​	​	​	​	​	​	​	​	​	​	​

Fair Value of Financial Instruments

		December 31,
		2013									2012
		Effective Interest Rate			Carrying Value			Fair Value			Effective Interest Rate			Carrying Value			Fair Value
		(In thousands)
2.35% senior notes due September 2016			2.56	%	$	349,820		$	354,694			6.42	%	$	—		$	—
6.15% senior notes due February 2018			6.42	%		969,928			1,097,480			6.42	%		968,708			1,164,813
9.25% senior notes due January 2019			9.33	%		339,607			428,733			9.33	%		1,125,000			1,492,819
5.00% senior notes due September 2020			5.20	%		697,947			731,955			5.20	%		697,648			770,707
4.625% senior notes due September 2021			4.75	%		698,148			709,793			4.75	%		697,907			755,517
5.10% senior notes due September 2023			5.26	%		348,765			349,731			0.00	%		—			—
Subsidiary preferred stock			4.00	%		69,188			69,000			4.00	%		69,188			68,625
Revolving credit facilities			2.28	%		170,000			170,000			2.17	%		890,000			890,000
Commercial paper			0.45	%		329,844			329,844			0.00	%		—			—
Other			0.00	%		10,243			10,243			0.00	%		437			437
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total					$	3,983,490		$	4,251,473					$	4,448,888		$	5,142,918
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

X

- Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258

+ Details

Name:	us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration