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Fair Value Measurements (Assets Measured at Fair Value on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Purchased video content recorded in prepaid and other assets $ 2,555 $ 2,585
Intangible assets, net 9,136 4,842
Goodwill 48,811 48,434
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Purchased video content recorded in prepaid and other assets 0 0
Intangible assets, net 0 0
Goodwill 0 0
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Purchased video content recorded in prepaid and other assets 0 0
Intangible assets, net 0 0
Goodwill 0 0
Significant Unobservable Inputs (Level 3) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Purchased video content recorded in prepaid and other assets 2,555 2,585
Intangible assets, net 9,136 4,842
Goodwill $ 48,811 $ 48,434