Share-Based Compensation - Valuation Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock options
Weighted-average assumptions
Risk-free interest rate, minimum (as a percent)	1.50%	0.50%	0.30%
Risk-free interest rate, maximum (as a percent)	3.80%	1.20%	1.70%
Expected volatility, minimum (as a percent)	55.00%	52.00%	50.00%
Expected volatility, maximum (as a percent)	70.00%	53.00%	53.00%
Weighted-average estimated fair value (in dollars per share)	$ 5.33	$ 9.25	$ 11.03
Minimum | Stock options
Weighted-average assumptions
Expected term (in years)	5 years 3 months 18 days	5 years 3 months 18 days	5 years 2 months 12 days
Maximum | Stock options
Weighted-average assumptions
Expected term (in years)	6 years 1 month 6 days	6 years 1 month 6 days	6 years 1 month 6 days
2013 Employee Share Purchase Plan
Weighted-average assumptions
Risk-free interest rate, minimum (as a percent)	1.50%	0.03%	0.10%
Risk-free interest rate, maximum (as a percent)	4.57%	0.20%	0.20%
Expected volatility, minimum (as a percent)	41.00%	40.00%	53.00%
Expected volatility, maximum (as a percent)	72.00%	79.00%	76.00%
Weighted-average estimated fair value (in dollars per share)	$ 3.86	$ 3.52	$ 8.04
2013 Employee Share Purchase Plan | Minimum
Weighted-average assumptions
Expected term (in years)	6 months	6 months	6 months
2013 Employee Share Purchase Plan | Maximum
Weighted-average assumptions
Expected term (in years)	2 years	2 years	2 years