Commitments and Contingencies	6 Months Ended
Jun. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	6. Commitments and Contingencies Litigation On August 29, 2024, a purported stockholder class action lawsuit (the Porcelli Complaint), Porcelli v. Outset Medical, Inc., et al., 5:24-cv-06124-EJD, was filed in the U.S. District Court for the Northern District of California, against the Company, its Chief Executive Officer, and then-Chief Financial Officer. On October 18, 2024, a second purported stockholder class action lawsuit (the Plymouth Complaint; together with the Porcelli Complaint, the Class Actions), Plymouth County Retirement Association v. Outset Medical, Inc., et al., 5:24-cv-06124-HSG, was filed in the same court. The second lawsuit also named the Company’s prior Chief Financial Officer as a defendant (together with the CEO and then-CFO, the Class Defendants). The Porcelli Complaint alleged that, between August 1, 2022 and August 7, 2024, defendants made materially false or misleading statements in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (Exchange Act) regarding the Company’s business, operations, and prospects related to the sale and marketing of the Tablo Hemodialysis System and TabloCart with Prefiltration, including concerning the impact of certain FDA processes for these products on the Company’s revenue growth. The Plymouth Complaint alleged similar violations between September 15, 2020 and August 7, 2024. On March 18, 2025, the court consolidated the Class Actions into one action captioned In re Outset Medical, Inc. Securities Litigation, Case No. 5:24-cv-06124-EJD, appointing a lead Plaintiff and lead Counsel. The lead plaintiff filed its consolidated amended complaint on June 6, 2025. The Class Defendants’ deadline to respond to or file a motion to dismiss is August 14, 2025, with additional briefing to follow. On November 29, 2024, an Outset stockholder purporting to act on behalf of the Company filed an action in the U.S. District Court for the Northern District of California against current and former members of Outset’s Board of Directors and certain of its officers (the Derivative Defendants), alleging that the Derivative Defendants breached their fiduciary duties to the Company in connection with the same alleged events and alleged materially false and misleading statements asserted in the Class Actions described above. Three additional substantively duplicative actions were filed in the U.S. District Court for the Northern District of California on April 28, 2025, May 8, 2025, and June 16, 2025. The complaints seek unspecified monetary damages and other relief. On July 17, 2025, the court entered a stay of all derivative actions pending the outcome of the Class Defendants’ forthcoming motion to dismiss the consolidated amended complaint. The cases are at a very early stage and the Company cannot currently estimate the loss or the range of possible losses it may experience in connection with this litigation. In addition, from time to time, the Company may become involved in other legal proceedings or investigations, which could have an adverse impact on its reputation, business and financial condition and divert the attention of the Company’s management from the operation of the Company’s business. Indemnification In the ordinary course of business, the Company often includes standard indemnification provisions in its arrangements with its partners, customers and suppliers. Pursuant to these provisions, the Company may be obligated to indemnify such parties for losses or claims suffered or incurred in connection with its service, breach of representations or covenants, intellectual property infringement or other claims made against such parties. These provisions may limit the time within which an indemnification claim can be made. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, the Company has not incurred any material costs as a result of such indemnification obligations and has not accrued any liabilities related to such obligations in these financial statements.

Commitments and Contingencies

6 Months Ended

Jun. 30, 2025

Commitments and Contingencies Disclosure [Abstract]

6. Commitments and Contingencies

Litigation

On August 29, 2024, a purported stockholder class action lawsuit (the Porcelli Complaint), Porcelli v. Outset Medical, Inc., et al., 5:24-cv-06124-EJD, was filed in the U.S. District Court for the Northern District of California, against the Company, its Chief Executive Officer, and then-Chief Financial Officer. On October 18, 2024, a second purported stockholder class action lawsuit (the Plymouth Complaint; together with the Porcelli Complaint, the Class Actions), Plymouth County Retirement Association v. Outset Medical, Inc., et al., 5:24-cv-06124-HSG, was filed in the same court. The second lawsuit also named the Company’s prior Chief Financial Officer as a defendant (together with the CEO and then-CFO, the Class Defendants). The Porcelli Complaint alleged that, between August 1, 2022 and August 7, 2024, defendants made materially false or misleading statements in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (Exchange Act) regarding the Company’s business, operations, and prospects related to the sale and marketing of the Tablo Hemodialysis System and TabloCart with Prefiltration, including concerning the impact of certain FDA processes for these products on the Company’s revenue growth. The Plymouth Complaint alleged similar violations between September 15, 2020 and August 7, 2024. On March 18, 2025, the court consolidated the Class Actions into one action captioned In re Outset Medical, Inc. Securities Litigation, Case No. 5:24-cv-06124-EJD, appointing a lead Plaintiff and lead Counsel. The lead plaintiff filed its consolidated amended complaint on June 6, 2025. The Class Defendants’ deadline to respond to or file a motion to dismiss is August 14, 2025, with additional briefing to follow.

On November 29, 2024, an Outset stockholder purporting to act on behalf of the Company filed an action in the U.S. District Court for the Northern District of California against current and former members of Outset’s Board of Directors and certain of its officers (the Derivative Defendants), alleging that the Derivative Defendants breached their fiduciary duties to the Company in connection with the same alleged events and alleged materially false and misleading statements asserted in the Class Actions described above. Three additional substantively duplicative actions were filed in the U.S. District Court for the Northern District of California on April 28, 2025, May 8, 2025, and June 16, 2025. The complaints seek unspecified monetary damages and other relief. On July 17, 2025, the court entered a stay of all derivative actions pending the outcome of the Class Defendants’ forthcoming motion to dismiss the consolidated amended complaint.

The cases are at a very early stage and the Company cannot currently estimate the loss or the range of possible losses it may experience in connection with this litigation.

In addition, from time to time, the Company may become involved in other legal proceedings or investigations, which could have an adverse impact on its reputation, business and financial condition and divert the attention of the Company’s management from the operation of the Company’s business.

Indemnification

In the ordinary course of business, the Company often includes standard indemnification provisions in its arrangements with its partners, customers and suppliers. Pursuant to these provisions, the Company may be obligated to indemnify such parties for losses or claims suffered or incurred in connection with its service, breach of representations or covenants, intellectual property infringement or other claims made against such parties. These provisions may limit the time within which an indemnification claim can be made. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, the Company has not incurred any material costs as a result of such indemnification obligations and has not accrued any liabilities related to such obligations in these financial statements.