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Supplemental Consolidated Financial Statement Information - Deferred Costs and Deferred Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Jan. 01, 2021
Jan. 01, 2020
Deferred costs     $ 1,847 $ 2,525
Total deferred costs amortized $ 6,563 $ 16,130    
Deferred costs impairment losses 0 0    
Deferred revenue 1,344 1,779 $ 1,779 $ 3,481
Revenue recognized that was included in deferred revenue balances at beginning of period 1,779 3,476    
Prepaid expenses and other current assets        
Deferred costs $ 972 $ 1,847