XML 154 R129.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial instruments and fair value disclosures - trade receivables, notes receivable and non-securitized orbital receivables (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Financial instruments and fair value disclosures    
Partial support of selected satellite financings provided by EDC $ 50.3 $ 29.7