Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value of Financial Instruments

Schedule of estimated fair value of financial instruments

        The estimated fair value of financial instruments is as follows (dollars in thousands):

	Carrying Value		Fair Value
December 31, 2014
Assets—investment in U.S. Treasury obligations	$	808	$	808
Liabilities—long-term debt (carried at amortized cost)		292,423		296,908
December 31, 2013
Assets—investment in U.S. Treasury obligations	$	807	$	807
Liabilities—long-term debt (carried at amortized cost)		294,679		299,886

Schedule of assets and liabilities measured at fair value on a recurring basis

Liabilities carried at amortized cost with fair value disclosure on a recurring basis represent long-term debt. A summary is as follows (dollars in thousands):

	December 31, 2014		December 31, 2013
Asset value measurements using:
Quoted prices in active markets for identical assets (Level 1)	$	808	$	807
Significant other observable inputs (Level 2)		—		—
Significant unobservable inputs (Level 3)		—		—
	$	808	$	807
Liability value measurements using:
Quoted prices in active markets for identical assets (Level 1)	$	—	$	—
Significant other observable inputs (Level 2)		296,908		299,886
Significant unobservable inputs (Level 3)		—		—
	$	296,908	$	299,886