Reorganization - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Officers
Restructuring Cost and Reserve [Line Items]
Number of executive officers terminated \| Officers	5
Anticipated restructuring expense	$ 13.4
2023 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for restructuring charges	4.2
2023 Restructuring Plan \| Research and Development Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1.7
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Research and Development Expense
2023 Restructuring Plan \| General and Administrative Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.1
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	General and Administrative Expense
2023 Restructuring Plan \| Sales and Marketing Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2.4
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling and Marketing Expense
Executive Officer Departures
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 13.4
Executive Officer Departures \| Research and Development Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2.3
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Research and Development Expense
Executive Officer Departures \| General and Administrative Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 7.2
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	General and Administrative Expense
Executive Officer Departures \| Sales and Marketing Expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3.9
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling and Marketing Expense
Employee Severance
Restructuring Cost and Reserve [Line Items]
Anticipated restructuring expense	$ 4.7
Non-Cash, Stock-based Compensation Expense
Restructuring Cost and Reserve [Line Items]
Anticipated restructuring expense	$ 8.7

HERON THERAPEUTICS, INC. /DE/ 10-K