Accrued Liabilities and Deferred Credits (Tables)

9 Months Ended

Sep. 30, 2012

Accrued Liabilities and Deferred Credits

Accrued liabilities and deferred credits consist of the following:

	September 30, 2012		December 31, 2011
Accrued compensation	$	3,508	$	1,687
Restructuring liability		202		790
Environmental and insurance liabilities		1,859		1,887
Deferred revenue		27,222		29,859
Legal		1,025		2,972
Other accrued liabilities		13,980		10,296
Total accrued liabilities and deferred credits	$	47,796	$	47,491