Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2014

Accrued Liabilities [Abstract]

Components of Accrued Liabilities

The components of accrued liabilities were as follows (in thousands):

	September 30, 2014		December 31, 2013
Compensation and benefits	$	136,996	$	130,455
Franchise, property, sales and use taxes	27,942		20,232
Medical insurance and workers’ compensation	26,185		26,399
Customer volume discounts and rebates	12,695		11,436
Environmental liabilities and asset retirement obligations	6,829		7,812
Severance	2,052		8,172
Legal contingencies	1,283		1,000
Other	14,776		8,552
Total	$	228,758	$	214,058