Share-Based Compensation - General (Details)	1 Months Ended	3 Months Ended
	Feb. 28, 2019 shares	Mar. 31, 2024 plan shares
Share-Based Compensation
Number of equity incentive plans | plan		2
2015 Plan
Share-Based Compensation
Maximum number of shares authorized to be issued (in shares)		12,500,000
2019 Inducement Plan | Newly-Hired Employees
Share-Based Compensation
Number of equity incentive plans | plan		1
Granted (in shares)	99,000
Amended and Restated Equity Incentive Plan (The 1999 Plan)
Share-Based Compensation
Granted (in shares)		0