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Self-Insurance Accruals
 12 Months Ended
Dec. 31, 2016
Self-Insurance Accruals [Abstract]  
Self-Insurance Accruals [Text Block]
Self-Insurance Accruals

Components of our self-insurance accruals for workers’ compensation, vehicle liability and general liability follow:
 
December 31,
 
2016
 
2015
Workers' compensation
$
38,811

 
$
35,304

Present value discount
2,236

 
1,937

 
36,575

 
33,367

Vehicle liability
4,763

 
5,880

General liability
21,500

 
21,092

Total
62,838

 
60,339

Less current portion
23,092

 
22,553

Noncurrent portion
$
39,746

 
$
37,786


 
The changes in our self-insurance accruals and the discount rate used for the workers’ compensation accrual are summarized in the table below.
 
December 31,
 
2016
 
2015
Balance, beginning of year
$
60,339

 
$
58,893

Provision for claims
33,404

 
33,499

Payment of claims
30,905

 
32,053

Balance, end of year
$
62,838

 
$
60,339

Workers' compensation discount rate
2.20
%
 
2.20
%