Cover Page - shares	3 Months Ended
	Mar. 31, 2022	May 05, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-34746
Entity Registrant Name	R1 RCM INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	02-0698101
Entity Address, Address Line One	434 W. Ascension Way
Entity Address, Address Line Two	6th Floor
Entity Address, City or Town	Murray
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84123
City Area Code	312
Local Phone Number	324-7820
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	RCM
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filter Category	Large Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		279,704,879
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001472595
Current Fiscal Year End Date	--12-31