Accrued Liabilities

12 Months Ended

Dec. 31, 2011

Accrued Liabilities, Current [Abstract]

Accrued Liabilities (table text block)

Accrued Liabilities

	December 31, 2011		December 31, 2010
	(dollars in thousands)
Self-insurance	$	10,650	$	10,650
Wages and bonus	21,220		20,610
Other	38,270		35,340
Total accrued liabilities	$	70,140	$	66,600