XML 68 R56.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Assets and Liabilities Measured at Fair Value (Schedule of Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 54,552 $ 66,348
Equity securities 2,600,008 1,529,901
Investment in Liberty Broadband 5,367,242 3,074,373
Derivative instrument liability 71,305 20,340
Quoted prices in active markets for identical assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 54,552 66,348
Equity securities 2,600,008 1,529,901
Investment in Liberty Broadband 5,367,242 3,074,373
Derivative instrument liability 0 0
Significant other observable inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 0 0
Equity securities 0 0
Investment in Liberty Broadband 0 0
Derivative instrument liability $ 71,305 $ 20,340