XML 84 R70.htm IDEA: XBRL DOCUMENT v3.3.1.900
Shareholders' Equity (Narrative) (Details) - USD ($)
 12 Months Ended
Jan. 25, 2015
Jun. 30, 2014
Jan. 13, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Jan. 12, 2015
Class of Stock [Line Items]              
Public offering, realized net proceeds, net offering expenses     $ 41,300,000 $ 41,741,000 $ 41,163,000 $ (64,000)  
Public offering, shares     6,900,000 85,049,000 79,213,000   5,750,000
Shares issued to underwriters     900,000       750,000
Public offering, realized net proceeds, net offering expenses             $ 41,900,000
At-the-market program, shares sold       0 0    
Stock price as percentage of market value       100.00%      
Remaining shares authorized under DRIP       2,847,000      
Redemptions of OP Units, shares   69,000          
OP units converted       40,000 51,000    
Accrued preferred stock dividends       $ 1,600,000 $ 1,600,000    
Dividends payable, date declared       Jan. 25, 2016      
Dividends payable, date to be paid       Feb. 22, 2016      
Dividends payable, date of record       Feb. 12, 2016      
Series B [Member]              
Class of Stock [Line Items]              
Dividend rate percentage       7.25%      
Liquidation preference, per share       $ 25.00 $ 25.00    
Redemption price per share       $ 25.00      
Limited Partners' Interest In Operating Partnership [Member]              
Class of Stock [Line Items]              
Cash outlay for redeemed OP units   $ 424,000   $ 0 $ 0    
Subsequent Event [Member]              
Class of Stock [Line Items]              
Common stock, dividends declared $ 0.05            
Subsequent Event [Member] | Series B [Member]              
Class of Stock [Line Items]              
Preferred stock dividends declared $ 0.453125