Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Accounts receivable, net of allowance for doubtful accounts	$ 1,768	$ 1,993
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	48,300,000	46,115,000
Common stock, shares outstanding	47,390,000	46,115,000