Accrued Liabilities and Deferred Credits (Tables)

6 Months Ended

Jun. 30, 2012

Accrued Liabilities and Deferred Credits

Accrued liabilities and deferred credits consist of the following:

	June 30, 2012		December 31, 2011
Accrued compensation	$	2,540	$	1,687
Restructuring liability		227		790
Environmental and insurance liabilities		1,856		1,887
Deferred revenue		30,346		29,859
Retiree medical and other benefit reserves		89		100
Legal		1,572		2,972
Other accrued liabilities		13,774		10,196
Total accrued liabilities and deferred credits	$	50,404	$	47,491