Senior Notes (Tables)

9 Months Ended

Sep. 30, 2012

Senior Notes [Abstract]

Schedule Of Outstanding Senior Notes

					September 30, 2012				December 31, 2011
					Consolidated Balance				Consolidated Balance
(Dollars in thousands)	Date Issued	Date Due	Principal Amounts		Sheet Amount		Market Value		Sheet Amount		Market Value
5.40% Senior notes	10/12/2004	10/15/2014	$	250,000	$	249,894	$	261,745	$	249,858	$	251,370

Schedule Of Interest Expense Incurred In Connection With Senior Notes

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(Dollars in thousands)	2012		2011		2012		2011
Interest expense incurred	$	3,387	$	3,386	$	10,161	$	10,159