Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 09, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]        
Contributions from Qurate Retail $ 1,300,000   $ (1,122,272) $ (146,680)
Increase in valuation allowance   $ 40    
Change in valuation allowance affecting tax expense   40 $ 189 $ 384
Carryforwards   179,500    
Carryforwards with no expiration   63,700    
Carryforwards subject to expiration   115,800    
Carryforwards that may expire if unused   $ 1,400