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Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2015
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,
 
 
2015
 
2014
 
 
(in thousands)
 
 
 
 
 
Beginning balance, January 1,
 
$
136,088

 
$
120,833

Accrued claims
 
49,607

 
39,130

Present value discount
 
(1,816
)
 
(1,418
)
Paid claims
 
(28,735
)
 
(28,314
)
Ending balance
 
$
155,144

 
$
130,231

 
 
 
 
 
Current portion of accrued claims
 
$
43,056

 
$
57,222

Long-term portion of accrued claims
 
112,088

 
73,009

 
 
$
155,144

 
$
130,231