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Notes Receivable (Tables)
 12 Months Ended
Dec. 31, 2015
Receivables [Abstract]  
Schedule of Notes Receivable
At December 31, notes receivable consisted of the following (in thousands):
 
December 31,
 
2015
 
2014
Independent contractor notes receivable
$
38,450

 
$
19,021

Other notes receivable
7,474

 
6,780

 
45,924

 
25,801

Less current portion
11,597

 
8,464

Notes receivable – non-current
$
34,327

 
$
17,337