Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of estimated fair values of the entity's financial instruments and classification of such instruments

The following table and accompanying information present the estimated fair values and classifications of our financial instruments in accordance with FASB ASC Topic 820, Fair Value Measurement, as of December 31, 2013 and 2012:

	December 31,
	2013						2012
(Amounts in thousands)	Carrying Value			Fair Value			Carrying Value			Fair Value
Financial assets (liabilities):
Restricted-use investment securities	$	1,823		$	1,823		$	1,218		$	1,218
Derivative instruments	—			—			32			32
Long-term debt (including current portion)	(1,400,603		)	(1,384,603		)	(1,405,206		)	(1,410,255		)