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Finance Charges (Tables)
 12 Months Ended
Dec. 31, 2017
Finance Costs [Abstract]  
Summary of Finance Charges

 

 

 

2017

 

 

2016

 

Interest:

 

 

 

 

 

 

 

 

Long-term debt

 

$

128,381

 

 

$

138,335

 

Other

 

 

1,083

 

 

 

226

 

Income

 

 

(1,858

)

 

 

(3,445

)

Amortization of debt issue costs

 

 

10,162

 

 

 

11,244

 

Other

 

 

160

 

 

 

—

 

Finance charges

 

$

137,928

 

 

$

146,360