Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Activity and balances related to incurred but not paid workers' compensation claims

The following table provides the activity and balances related to incurred but not paid workers' compensation claims:

	Nine Months Ended September 30,
	2012			2011
	(in thousands)
Beginning balance, January 1,	$	104,791		$	96,934
Accrued claims		28,586			26,668
Present value discount		(712	)		(1,159	)
Paid claims		(23,133	)		(21,123	)
Ending balance	$	109,532		$	101,320
Current portion of accrued claims	$	46,069		$	42,812
Long-term portion of accrued claims		63,463			58,508
	$	109,532		$	101,320