v3.26.3
Segment Information - Schedule of Segment Reporting Provided to the CODM (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Revenue:        
Total revenue $ 37,710 $ 32,501 $ 94,049 $ 56,191
Other segment (income) expense:        
Interest income (1,136) (2,097) (4,709) (8,065)
Interest expense 2,552 56 7,472 56
Net loss (35,587) (51,151) (158,544) (129,974)
Single Reportable Segment [Member]        
Revenue:        
Total revenue 37,710 32,501 94,049 56,191
Other segment (income) expense:        
Interest income 1,136 2,097 4,709 8,065
Interest expense 2,552 56 7,472 56
Net loss (35,587) (51,151) (158,544) (129,974)
Single Reportable Segment [Member] | Cost of Goods Sold [Member]        
Less segment operating expenses:        
Total segment operating expenses 10,098 8,191 29,230 14,269
Single Reportable Segment [Member] | Clinical [Member]        
Less segment operating expenses:        
Total segment operating expenses 1,991 1,457 5,725 3,911
Single Reportable Segment [Member] | Development [Member]        
Less segment operating expenses:        
Total segment operating expenses 14,306 690 17,918 3,942
Single Reportable Segment [Member] | Medical Affairs [Member]        
Less segment operating expenses:        
Total segment operating expenses 811 1,086 3,363 3,104
Single Reportable Segment [Member] | Sales and Marketing [Member]        
Less segment operating expenses:        
Total segment operating expenses 27,649 63,211 140,072 135,259
Single Reportable Segment [Member] | General and Administrative [Member]        
Less segment operating expenses:        
Total segment operating expenses 8,861 5,002 25,369 16,473
Single Reportable Segment [Member] | Stock-Based Compensation [Member]        
Less segment operating expenses:        
Total segment operating expenses 8,122 5,689 27,940 16,358
Single Reportable Segment [Member] | Other Segment Operating Expenses [Member]        
Less segment operating expenses:        
Total segment operating expenses $ 43 $ 367 $ 213 $ 858