Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Components of accumulated other comprehensive earnings/(loss)

The table below shows the components of accumulated other comprehensive earnings/(loss) at December 31:

($ in thousands)	2012			2011
Accumulated translation, net of tax	$	1,219		$	(90	)
Unrealized loss on cash flow hedges, net of tax		(980	)		—
Unrecognized amounts relating to benefit plans, net of tax:
Net loss		(120,164	)		(114,010	)
Prior service costs		(679	)		(1,046	)
Accumulated other comprehensive loss	$	(120,604	)	$	(115,146	)