Stock Based Compensation - Restricted stock units (Details) - RSUs $ / shares in Units, $ in Thousands	9 Months Ended	106 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares
Stock-based compensation
Beginning balance | shares	826,148
Granted | shares	809,630	1,934,117
Vested | shares	(170,295)
Forfeited | shares	(108,076)
Ending balance | shares	1,357,407	1,357,407
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 37.79
Weighted Average Grant Date Fair Value, Granted | $ / shares	29.61
Weighted Average Grant Date Fair Value, Vested | $ / shares	37.42
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	33.65
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 33.28	$ 33.28
Compensation expense
Unamortized compensation expense related to unvested restricted stock units | $	$ 32,000	$ 32,000
Period to recognize unamortized compensation expense	2 years