Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Apr. 12, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-40750
Entity Registrant Name	Consensus Cloud Solutions, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1139414
Entity Address, Address Line One	700 S. Flower Street
Entity Address, Address Line Two	15th Floor
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90017
City Area Code	323
Local Phone Number	860-9200
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CCSI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding (in shares)		19,995,970
Documents Incorporated by Reference	Portions of the definitive Proxy Statement to be delivered to stockholders in connection with the Annual Meeting of Stockholders to be held June 15, 2022 are incorporated by reference into Part III of this Form 10-K.
Entity Central Index Key	0001866633
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false