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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Accounts and other receivables, allowance for doubtful accounts and sales returns $ 2,806 $ 2,797
Common stock, shares issued 33,669,561 33,457,176
Common stock, shares outstanding 33,669,561 33,457,176
Common Stock, Shares Held in Employee Trust, Shares 105,636 105,067