Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 30, 2021
Cover [Abstract]
Document Type	10-Q/A
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-11993
Entity Registrant Name	OPTION CARE HEALTH, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	05-0489664
Entity Address, Address Line One	3000 Lakeside Dr.
Entity Address, Address Line Two	Suite 300N,
Entity Address, City or Town	Bannockburn,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60015
City Area Code	312
Local Phone Number	940-2443
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	OPCH
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		179,868,880
Entity Central Index Key	0001014739
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	true
Amendment Description	Option Care Health, Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-Q/A (the “Form 10-Q/A”) to amend its Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021 filed with the Securities and Exchange Commission on August 3, 2021 (the “Original Report”). The purpose of this Form 10-Q/A is to amend our disclosure in Part I, Item 1 “Notes to Unaudited Condensed Consolidated Financial Statements” to correct for a clerical error within note 4 “Revenue”. In conjunction with the immaterial error correction disclosure discussed in Part I, Item 1 “Notes to Unaudited Condensed Consolidated Financial Statements”, note 2 “Summary of Significant Accounting Policies”, the Company inadvertently omitted to update note 4 “Revenue” to present that note in a consistent manner. As a result, the Original Report resulted in an understatement of commercial payers revenue and an overstatement of government payers revenue for the three and six months ended June 30, 2021. There was no impact to net revenue as a result of this clerical error. Part I, Item 1 “Notes to Unaudited Condensed Consolidated Financial Statements”, note 4 “Revenue” has been corrected in this Form 10-Q/A. In addition, the immaterial error correction disclosure in Part I, Item 1 “Notes to Unaudited Condensed Consolidated Financial Statements”, note 2 “Summary of Significant Accounting Policies” was updated to reflect the properly stated commercial and government revenues for the three and six months ended June 30, 2021. No other changes were made to the “Original Report”, and the entire revised financial statements are included within this Form 10-Q/A.