Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2022	Dec. 31, 2021
Class A common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	125,000	125,000
Common stock, shares, issued (in shares)	29,304	29,139
Common stock, shares outstanding (in shares)	29,304	29,139
Class B common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	100,000	100,000
Common stock, shares, issued (in shares)	252	272
Common stock, shares outstanding (in shares)	252	272