Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2012

Other Liabilities Disclosure [Abstract]

Components Of Accrued Liabilities

(Dollars in thousands)	December 31,
	2012		2011
Variable compensation	$	50,713	$	49,512
Compensated absences	40,254		38,108
Employee benefits	38,761		40,281
Wages and salaries	29,451		36,027
Taxes other than income taxes	23,930		19,988
Interest	17,607		17,695
Other	52,493		33,535
Total accrued liabilities	$	253,209	$	235,146