XML 25 R76.htm IDEA: XBRL DOCUMENT v3.3.0.814
Incentive Plans (Details Textual) - USD ($)
$ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Incentive Plans [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 6.5   6.5    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 5.0   5.0   5.1
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 800   $ 800    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition     1 year 2 months 12 days    
Amortization of restricted stock awards and operating partnership units     $ 1,629    
Restricted Stock [Member]          
Incentive Plans [Line Items]          
Allocated Share-based Compensation Expense 600 $ 500 1,600 $ 800  
Amortization of restricted stock awards and operating partnership units $ 400   800    
Stock Granted, Value, Share-based Compensation, Net of Forfeitures, Total     $ 400 $ 200