Supplemental Detail for Certain Components of Consolidated Balance Sheets - Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accounts payable and accrued expenses consist of the following at:
Property taxes payable	$ 24,334	$ 14,511
Derivative liabilities and payables - at fair value	17,674	7,001
Value-added tax payable	13,168	0
Accrued costs on properties under development	7,259	8,137
Other items	34,100	29,426
Total accounts payable and accrued expenses	163,154	133,765
Notes payable
Accounts payable and accrued expenses consist of the following at:
Interest payable	65,522	73,094
Mortgages, term loans, and credit line
Accounts payable and accrued expenses consist of the following at:
Interest payable	$ 1,097	$ 1,596