Fair Value Disclosure of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Notes To Financial Statements [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents our assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 and December 31, 2011, aggregated by the level in the fair value hierarchy within which those measurements fall.

Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2012

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs  (Level 3)		Balance at December 31, 2012
Assets
Derivative financial instruments	$	—	$	288	$	—	$	288
Liabilities
Derivative financial instruments	$	—	$	21,423	$	—	$	21,423

Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2011

(dollars in thousands)

	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs  (Level 3)		Balance at December 31, 2011
Assets
Derivative financial instruments	$	—	$	1,018	$	—	$	1,018
Liabilities
Derivative financial instruments	$	—	$	33,095	$	—	$	33,095