Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

v3.3.1.900
Related Party Transactions (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Related Party Transaction [Line Items]        
Gross Asset Management Costs, before Reduction $ 50,295 $ 48,803 $ 46,047  
Management Fee, Percent 1.50%      
Reduction of Mangement Fees     4,300  
Costs and Expenses, Related Party $ 22,873 15,501 9,946  
Allocated Share-based Compensation Expense 9,002 11,704 3,888  
Discontinued Operation, Future Gain (Loss) on Disposal of Discontinued Operation, Net of Tax       $ 4,000
Reduction of Future Management Fees       $ 4,300
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, Net of Tax $ 0 $ 0 $ 3,861