Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2013

Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income

	Pension Benefit				Postretirement Benefit
	2013		2012		2013			2012
	(dollars in thousands)
Amounts Recognized in Accumulated Other Comprehensive (Income) Loss
Unrecognized prior-service cost	$	110	$	130	$	—		$	—
Unrecognized net loss/(gain)	16,420		19,430		(670		)	(570		)
Total accumulated other comprehensive (income) loss recognized at December 31	$	16,530	$	19,560	$	(670	)	$	(570	)

Changes in AOCI by component for the year ended December 31, 2013 are summarized as follows, net of tax:

	Defined Benefit Plans			Derivative Instruments			Foreign Currency Translation			Total
	(dollars in thousands)
Balance, December 31, 2012	$	(12,440	)	$	(1,680	)	$	53,380		$	39,260
Net unrealized gains (losses) arising during the period	800			3,370			(7,860		)	(3,690		)
Less: Net realized gains (losses) reclassified to net income (a)	(800		)	630			7,910			7,740
Net current-period change	1,600			2,740			(15,770		)	(11,430		)
Balance, December 31, 2013	$	(10,840	)	$	1,060		$	37,610		$	27,830