Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued capital expenditures	$ 52,891	$ 58,057
Accounts payable and accrued expenses	26,012	32,309
Interest rate swap agreements liability	6,176	8,849
Accrued interest payable	3,392	3,219
Due to affiliated companies	783	769
Total accounts payable and accrued expenses	$ 89,254	$ 103,203