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Accounts Payable and Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2019
Payables and Accruals [Abstract]  
Accounts payable and accrued expenses
Accounts payable and accrued expenses consisted of the following as of March 31, 2019 and December 31, 2018 (amounts in thousands):
 
March 31, 2019
 
December 31, 2018
Accrued capital expenditures
$
82,399

 
$
85,242

Accounts payable and accrued expenses
29,426

 
34,585

Interest rate swap agreements liability
10,336

 
5,243

Accrued interest payable
3,410

 
4,990

Due to affiliated companies
2,415

 
616

     Total accounts payable and accrued expenses
$
127,986

 
$
130,676