Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2011

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 for the nine months ended September 30, 2011 and 2010:

	2011			2010
	(in thousands)
Beginning balance, January 1,	$	96,934		$	88,450
Accrued claims		26,668			24,985
Present value discount		(1,159	)		(1,350	)
Paid claims		(21,123	)		(18,133	)
Ending balance	$	101,320		$	93,952
Current portion of accrued claims	$	42,812		$	39,661
Long-term portion of accrued claims		58,508			54,291
	$	101,320		$	93,952