v3.21.2
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 2,068,000 $ 2,119,000
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 10,000,000 10,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in USD per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 400,000,000 400,000,000
Common stock, shares issued (in shares) 279,054,000 189,953,000
Common stock, shares outstanding (in shares) 279,054,000 189,953,000