Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

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

As of March 31, 2014 and December 31, 2013, the fair value carrying amount of the Company's derivatives designated as hedging instruments are recorded as follows:

		Asset / (Liability) Derivatives
	Balance Sheet Caption	March 31, 2014			December 31, 2013
		(dollars in thousands)
Derivatives designated as hedging instruments
Interest rate swaps	Other assets	$	2,300		$	2,080
Interest rate swaps	Accrued liabilities	(620		)	(360		)
Foreign currency forward contracts	Other assets	370			—
Total derivatives designated as hedging instruments		$	2,050		$	1,720

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

three months ended March 31, 2014 and 2013:

	Amount of Income Recognized in AOCI on Derivative (Effective Portion, net of tax)					Amount of Income (Loss) Reclassified from AOCI into Earnings
						Three months ended March 31,
	As of March 31, 2014		As of December 31, 2013		Location of Income (Loss) Reclassified from AOCI into Earnings (Effective Portion)	2014			2013
	(dollars in thousands)					(dollars in thousands)
Derivatives designated as hedging instruments
Interest rate swaps	$	1,040	$	1,060	Interest expense	$	(240	)	$	(10	)
Foreign currency forward contracts	$	330	$	—	Cost of sales	$	40		$	—

Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location

		Amount of Loss Recognized in Earnings on Derivatives
	Location of Loss Recognized in Earnings on Derivatives	Three months ended March 31,
		2014		2013
		(dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate swaps	Interest expense	$	—	$	(80	)

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 March 31, 2014 and December 31, 2013 are shown below.  

	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)
March 31, 2014
Interest rate swaps	Recurring	$	1,680	$	—	$	1,680	$	—
Foreign currency forward contracts	Recurring	$	370	$	—	$	370	$	—
December 31, 2013
Interest rate swaps	Recurring	$	1,720	$	—	$	1,720	$	—