v3.3.1.900
Noncontrolling Interests on the Company's Consolidated Financial Statements (Details) - USD ($)
$ / shares in Units, $ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Noncontrolling Interest [Line Items]    
Percentage of general partnership interest owned by the company in the Operating Partnership 98.10% 98.00%
Ownership interest of noncontrolling interest 1.90% 2.00%
Noncontrolling common units 1,764,775 1,804,200
Common stock, par value $ 0.01  
Aggregate value upon redemption of outstanding noncontrolling common units $ 112,000 $ 126,800
Noncontrolling Interest $ 6,520 $ 5,862