Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies (Narrative) (Details)

v3.19.1
Significant Accounting Policies (Narrative) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Jan. 01, 2019
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Apr. 02, 2019
Jan. 03, 2019
Significant Accounting Policies [Line Items]              
Capitalized development and construction salaries and other related costs   $ 600,000   $ 600,000      
Maximum period after cessation of major construction activity that projects are considered complete   1 year          
Threshold of investment value for discontinuation of equity method accounting   $ 0          
Amortization of deferred financing costs   1,189,000   1,096,000      
Loss from extinguishment of debt, net   1,311,000   (10,289,000)      
Write-off of unamortized deferred financing costs       105,000      
Deferred leasing costs       693,000      
Leasing personnel costs   742,000          
Deferred tax asset   11,600,000     $ 5,300,000    
Income taxes, material adjustment amount   $ 0          
Common stock, shares outstanding   90,325,783 90,320,306       90,320,408
Common units outstanding   10,009,355 10,229,349       10,174,285
LTIP units outstanding   1,826,331 1,707,106       1,762,170
Distributions payable, record date   Apr. 02, 2019 Jan. 03, 2019        
Distributions payable, approved date   Mar. 14, 2019 Dec. 11, 2018        
Common stock dividends and common unit distributions per share   $ 0.20 $ 0.20        
Restricted stock expense   $ 1,880,000   2,532,000      
Distributions payable, pay date   Apr. 12, 2019 Jan. 11, 2019        
Increase (decrease) to valuation allowance         $ (5,300,000)    
Federal income tax rate   21.00%          
Loss from extinguishment of debt, net   $ 1,311,000   $ (10,289,000)      
Accounting Standards Update 2017-12 [Member]              
Significant Accounting Policies [Line Items]              
Adjustment to retained earnings $ 400,000            
Subsequent Event [Member]              
Significant Accounting Policies [Line Items]              
Common stock, shares outstanding           90,326,046  
Common units outstanding           9,876,865  
LTIP units outstanding           1,958,821