Workers' Compensation Expense

6 Months Ended

Jun. 30, 2011

Workers' Compensation Expense

Workers' Compensation Expense

12. Workers' Compensation Expense

The following table details the components of workers' compensation expense:

	Three Months Ended June 30						Six Months Ended June 30
	2011			2010			2011			2010
	(In thousands)						(In thousands)
Self-insured occupational disease benefits:
Service cost	$	246		$	208		$	439		$	363
Interest cost	304			194			558			338
Net amortization	(160		)	(382		)	(261		)	(930		)
Total occupational disease	390			20			736			(229		)
Traumatic injury claims and assessments	3,324			2,244			5,649			3,920
Total workers' compensation expense	$	3,714		$	2,264		$	6,385		$	3,691