Fair Value Disclosure of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Notes To Financial Statements [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and Liabilities Measured at Fair Value on a Recurring Basis at March 31, 2013

(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
							March 31, 2013
Assets
Derivative financial instruments	$	—	$	274	$	—	$	274
Liabilities
Derivative financial instruments	$	—	$	17,313	$	—	$	17,313

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