Income Taxes (Tables)

6 Months Ended

Jun. 30, 2014

Income Tax Disclosure [Abstract]

Summary Of Provision For Income Taxes

	For the Three Months Ended						For the Six Months Ended
	June 30,						June 30,
	2013			2014			2013			2014
	(Dollars in thousands)						(Dollars in thousands)
Tax expense	$	1,718		$	6,886		$	3,758		$	1,599
Pretax income (loss)	$	6,100		$	(148,547	)	$	12,350		$	(165,351	)
Effective tax rates	28.2		%	(4.6		)%	30.4		%	(1.0		)%