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Schedule II Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts
Schedule II
Valuation and Qualifying Accounts
(in thousands)
Balance at
Beginning of
Year		Charged to
Expense		Deductions / (Other Additions)Balance at
End of Year
Year ended December 31, 2021    
Deferred tax valuation allowance (1)
$134,305 $(77,090)$45,831 $11,384 
Allowance for sales returns19,190 237,622 242,889 13,923 
Allowance for doubtful accounts1,417 1,012 — 2,429 
Year ended December 31, 2020    
Deferred tax valuation allowance (1)
$146,856 $(13,066)$(515)$134,305 
Allowance for sales returns11,106 204,810 196,726 19,190 
Allowance for doubtful accounts2,443 1,008 2,034 1,417 
Year ended December 31, 2019    
Deferred tax valuation allowance (1)
$114,523 $32,333 $— $146,856 
Allowance for sales returns15,261 117,039 121,194 11,106 
Allowance for doubtful accounts2,095 634 286 2,443 
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(1) — Amounts contain continuing and discontinued operations