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Deferred Charges and Other Non-Current Assets Deferred Charges and Other Non-Current Assets (Tables)
12 Months Ended
Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure
Deferred charges and other non-current assets at December 31, 2014 and 2015 were as follows (in thousands):
 
December 31, 2014
 
December 31, 2015
Prepaid agreements not to compete, net of accumulated amortization of $5,105 and $5,404, respectively
$
1,159

 
$
1,912

Deferred loan costs, net of accumulated amortization of $2,809 and $3,246, respectively
1,870

 
1,445

Convertible subordinated notes issuance costs, net of accumulated amortization of $375 and $858, respectively
3,252

 
2,769

Tradenames
7,660

 
8,856

Other
323

 
210

Deferred charges and other non-current assets
$
14,264

 
$
15,192