Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Building and Improvements, accumulated depreciation	$ 446,361	$ 387,633
Deferred leasing intangible assets, accumulated amortization	267,553	241,304
Deferred leasing intangible liabilities, accumulated amortization	$ 13,117	$ 12,064
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Shares Outstanding	3,000,000	3,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	300,000,000	300,000,000
Common Stock, Shares, Issued	148,941,121	142,815,593
Common Stock, Shares, Outstanding	148,941,121	142,815,593
Series C Preferred Stock
Preferred Stock, Shares Issued	3,000,000	3,000,000
Preferred Stock, Liquidation Preference Per Share	$ 25.00	$ 25.00