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Accounts Payable and Accrued Expenses
12 Months Ended
Dec. 31, 2018
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses
Accounts Payable and Accrued Expenses
Accounts payable and accrued expenses consist of the following as of December 31, 2018 and 2017 (amounts in thousands):
 
2018
 
2017
Accrued capital expenditures
$
85,242

 
$
71,769

Accounts payable and accrued expenses
34,585

 
32,509

Interest rate swap agreements liability
5,243

 
436

Accrued interest payable
4,990

 
5,687

Due to affiliated companies
616

 
448

Total accounts payable and accrued expenses
$
130,676

 
$
110,849