The Company and Financial Statement Presentation - Schedule of Variable Interest Entities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Real estate, net	$ 3,232,795	$ 3,028,326
Total assets	3,595,156	3,441,467
Mortgages and notes payable, net	670,345	738,047
Total liabilities	2,235,661	2,028,976
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Real estate, net	790,185	778,265
Total assets	898,620	899,801
Mortgages and notes payable, net	360,426	364,099
Total liabilities	$ 371,000	$ 395,332