XML 82 R65.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investment in Unconsolidated Joint Ventures (Wildwood Associates) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]      
Company's investment balance $ 140,376 $ 78,940  
Income from unconsolidated joint ventures $ 12,224 47,115 $ 10,562
Wildwood Associates      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage of partner in joint venture 50.00%    
Company's investment balance $ (460) $ (1,151)  
Change in balance of unconsolidated joint venture 749    
Income from unconsolidated joint ventures 2,300    
Cash balance of joint venture $ 68    
Wildwood Associates | IBM      
Schedule of Equity Method Investments [Line Items]      
Ownership percentage of partner in joint venture 50.00%