CONTINGENCIES (Details)						4 Months Ended
	Sep. 25, 2024 claim	Sep. 13, 2024 claim	Aug. 16, 2024 shareholder	Jul. 19, 2022 claim	Aug. 12, 2021 defendant claim	Mar. 29, 2022 defendant claim	Sep. 30, 2024 USD ($)
Contingencies [Line Items]
Contingent liabilities | $							$ 0
Strezsak v. Ardelyx, Inc.
Contingencies [Line Items]
Number of lawsuits				2	2
Number of defendants | defendant					2
Go v. Raab
Contingencies [Line Items]
Number of lawsuits						2
Number of defendants | defendant						2
Yarborough v. Ardelyx, Inc.
Contingencies [Line Items]
Number of shareholders who filed | shareholder			2
Ardelyx, Inc. Stockholder Derivative Litigation
Contingencies [Line Items]
Number of lawsuits	2	2
Contingent liabilities | $							$ 0