ACCOUNTS PAYABLE AND ACCRUED EXPENSES

12 Months Ended

Dec. 31, 2012

ACCOUNTS PAYABLE AND ACCRUED EXPENSES

9. ACCOUNTS PAYABLE AND ACCRUED EXPENSES

Accounts payable and accrued expenses consist of the following (in thousands):

	December 31,
	2012		2011
Trade accounts payable	$	46,662	$	45,447
Accrued salaries and wages		42,443		49,802
Accrued workers’ compensation and auto liability		8,455		8,092
Accrued litigation		8,795		11,221
Accrued employee medical insurance		10,480		10,353
Accrued property taxes		24,434		23,405
Accrued interest		3,509		14,270
Other		21,222		33,136
	$	166,000	$	195,726

The total liability for workers’ compensation and auto liability was $23.5 million and $22.3 million as of December 31, 2012 and 2011, respectively, with the long-term portion included in other long-term liabilities in the accompanying consolidated balance sheets. These liabilities were discounted to the net present value of the outstanding liabilities using a 3.0% rate in 2012 and 2011. These liabilities amounted to $26.3 million and $25.0 million on an undiscounted basis as of December 31, 2012 and 2011, respectively.