Stock-based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	6 Months Ended
	Jun. 25, 2024	Sep. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Unrecognized stock-based compensation expense
Unrecognized stock compensation expense			$ 149.1
Weighted average remaining period (in years)			2 years 1 month 2 days
2015 Stock Plan
Unrecognized stock-based compensation expense
Expiration period	10 years
Shares available for future issuance (in shares)	750,000		1,264,199
2023 stock inducement plan
Unrecognized stock-based compensation expense
Expiration period		10 years
Shares available for future issuance (in shares)			19,097
Common stock, capital shares reserved for future issuance (in shares)			500,000
2015 Stock And Inducement Plan
Unrecognized stock-based compensation expense
Common stock granted and issuable (in shares)			2,517,274
Stock options
Unrecognized stock-based compensation expense
Proceeds resulting from exercise of stock options			$ 49.7	$ 21.8
Total intrinsic value of options exercised			$ 121.1	$ 48.9
Weighted-average grant date fair value of options (in dollars per share)			$ 153.98	$ 219.02
Stock options | 2015 Stock Plan
Unrecognized stock-based compensation expense
Expiration period			10 years
Restricted stock units
Unrecognized stock-based compensation expense
Equity award other than options, nonvested (in shares)			508,947		376,117
Weighted average grant date fair value			$ 230.61		$ 241.45
Granted (in shares)			248,517
Restricted stock units | 2015 Stock Plan
Unrecognized stock-based compensation expense
Equity award other than options, nonvested (in shares)			508,947
Weighted average grant date fair value			$ 230.61
Performance-based restricted stock units
Unrecognized stock-based compensation expense
Equity award other than options, nonvested (in shares)			92,760		50,000
Weighted average grant date fair value			$ 257.77		$ 146.37
Granted (in shares)			51,202