CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts receivable allowance	$ 1,668	$ 1,094
Class A common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock ,shares authorized	700,000,000	700,000,000
Common stock, shares issued	116,689,000	116,175,000
Common stock shares outstanding	116,689,000	116,175,000
Class B Common Stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock ,shares authorized	20,000,000	20,000,000
Common stock, shares issued	12,294,000	12,397,000
Common stock shares outstanding	12,294,000	12,397,000
Class C common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock ,shares authorized	10,000,000	10,000,000
Common stock, shares issued	6,478,000	6,478,000
Common stock shares outstanding	6,478,000	6,478,000