XML 60 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investments in Equity-Method Investees (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]    
Equity-method investment, interests 66.70%  
Summarized data of combined balance sheet and results of operations for our equity-method investees [Abstract]    
Net income attributable to our equity investment in investee $ 1,158 $ 2,150
Equity-Method Investees [Member]    
Summarized data of combined balance sheet and results of operations for our equity-method investees [Abstract]    
Equity Method Investment, Summarized Financial Information, Noncurrent Assets 6,123 9,650
Total assets 6,392 10,291
Total liabilities 26 204
Equity Method Investment Summarized Financial Information, Equity 6,366 10,087
Equity Method Investment, Summarized Financial Information, Revenue 1,742 3,249
Net income 1,370 2,714
Net income attributable to our equity investment in investee $ 1,158 $ 2,150