Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

As of December 31, 2013 and 2012, the fair value carrying amount of the Company's interest rate swaps are recorded as follows:

		Asset / (Liability) Derivatives
	Balance Sheet Caption	December 31, 2013			December 31, 2012
		(dollars in thousands)
Derivatives designated as hedging instruments
Interest rate swaps	Long-term asset	$	2,080		$	—
Interest rate swaps	Accrued liabilities	(360		)	(530		)
Interest rate swaps	Other long-term liabilities	—			(690		)
Total derivatives designated as hedging instruments		$	1,720		$	(1,220	)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The following tables summarize the income (loss) recognized in accumulated other comprehensive income ("AOCI"), the amounts reclassified from AOCI into earnings and the amounts recognized directly into earnings as of December 31, 2013 and 2012 and for the years ended December 31, 2013, 2012 and 2011:

	Amount of Income (Loss) Recognized in AOCI on Derivative (Effective Portion, net of tax)					Location of Loss Reclassified from AOCI into Earnings (Effective Portion)	Amount of Income (Loss) Reclassified from AOCI into Earnings
	As of December 31,						Year ended December 31,
	2013		2012				2013		2012			2011
	(dollars in thousands)						(dollars in thousands)
Derivatives designated as hedging instruments
Interest rate swaps	$	1,060	$	(760	)	Interest expense	$	2,510	$	(250	)	$	(360	)

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

		Amount of Loss Recognized in Earnings on Derivatives
		Year ended December 31,
	Location of Loss Recognized in Earnings on Derivatives	2013			2012			2011
		(dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate swaps	Interest expense	$	(1,480	)	$	(80	)	$	(10	)

Fair Value Measurements, Recurring and Nonrecurring

Fair value measurements and the fair value hierarchy level for the Company's assets and liabilities measured at fair value on a recurring basis as of December 31, 2013 and 2012 are shown below.

	Description	Frequency	Asset / (Liability)			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
			(dollars in thousands)
December 31, 2013	Interest rate swaps	Recurring	$	1,720		$	—	$	1,720		$	—
December 31, 2012	Interest rate swaps	Recurring	$	(1,220	)	$	—	$	(1,220	)	$	—