Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The financial instruments measured at fair value on a recurring basis are summarized below:



	Fair Value Measurements at September 30, 2013						Fair Value Measurements at December 31, 2012
Description	Quoted Prices in Active Markets for Identical Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Quoted Prices in Active Markets for Identical Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Gas Cash Flow Hedges	$	—	$	102,114	$	—	$	—	$	128,945	$	—

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]



	September 30, 2013						December 31, 2012
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Cash and Cash Equivalents	$	21,086		$	21,086		$	21,878		$	21,878
Restricted Cash (a)	$	12,263		$	12,263		$	68,673		$	68,673
Short-Term Notes Payable	$	(47,000	)	$	(47,000	)	$	(25,073	)	$	(25,073	)
Borrowings Under Securitization Facility	$	(44,364	)	$	(44,364	)	$	(37,846	)	$	(37,846	)
Long-Term Debt	$	(3,128,361	)	$	(3,320,618	)	$	(3,129,017	)	$	(3,378,058	)

- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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).

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