Fair Value Disclosure of Financial Instruments (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2015

Dec. 31, 2014

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 March 31, 2015 and December 31, 2014, 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 March 31, 2015

(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, 2015
Assets
Derivative financial instruments	$	—	$	34	$	—	$	34
Liabilities
Derivative financial instruments	$	—	$	15,007	$	—	$	15,007

Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2014

(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, 2014
Assets
Derivative financial instruments	$	—	$	78	$	—	$	78
Liabilities
Derivative financial instruments	$	—	$	13,392	$	—	$	13,392