Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities

	December 31, 2013		December 31, 2012
	(dollars in thousands)
Self-insurance	$	12,610	$	12,050
Wages and bonus	23,670		22,080
Other	48,850		40,290
Total accrued liabilities	$	85,130	$	74,420