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Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2013
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:


 
Six Months Ended 
 June 30,
 
 
2013
 
2012
 
 
(in thousands)
 
 
 
 
 
Beginning balance, January 1,
 
$
111,685

 
$
104,791

Accrued claims
 
19,194

 
19,164

Present value discount
 
(345
)
 
(532
)
Paid claims
 
(16,199
)
 
(15,179
)
Ending balance
 
$
114,335

 
$
108,244

 
 
 
 
 
Current portion of accrued claims
 
$
47,467

 
$
44,580

Long-term portion of accrued claims
 
66,868

 
63,664

 
 
$
114,335

 
$
108,244