Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

Accrued Liabilities [Abstract]

Components Of Accrued Liabilities

(Dollars in thousands)	December 31,
	2011		2010
Variable compensation	$	49,512	$	27,073
Employee benefits		40,281		34,683
Compensated absences		38,108		32,547
Wages and salaries		36,027		34,732
Taxes other than income taxes		19,988		20,517
Interest		17,695		17,750
Other		33,535		35,929
Total accrued liabilities	$	235,146	$	203,231