Accounting Policies (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2011 and 2010:

	2011			2010
	(in thousands)
Beginning balance, January 1,	$	96,934		$	88,450
Accrued claims		19,523			16,587
Present value discount		(898	)		(1,036	)
Paid claims		(14,493	)		(11,783	)
Ending balance	$	101,066		$	92,218
Current portion of accrued claims	$	41,331		$	37,744
Long-term portion of accrued claims		59,735			54,474
	$	101,066		$	92,218