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Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2014
Accounting Policies [Abstract]  
Activity and balances related to incurred but not paid workers' compensation claims
The following table presents the activity and balances related to incurred but not paid workers’ compensation claims:

 
 
Nine Months Ended 
 September 30,
 
 
2014
 
2013
 
 
(in thousands)
 
 
 
 
 
Beginning balance, January 1,
 
$
120,833

 
$
111,685

Accrued claims
 
39,130

 
30,496

Present value discount
 
(1,418
)
 
(748
)
Paid claims
 
(28,314
)
 
(24,462
)
Ending balance
 
$
130,231

 
$
116,971

 
 
 
 
 
Current portion of accrued claims
 
$
57,222

 
$
50,317

Long-term portion of accrued claims
 
73,009

 
66,654

 
 
$
130,231

 
$
116,971