Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Aug. 08, 2022
Document Information [Line Items]
Entity Registrant Name	Advantage Solutions Inc.
Entity Central Index Key	0001776661
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Document Period End Date	Jun. 30, 2022
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2022
Document Quarterly Report	true
Document Transition Report	false
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity File Number	001-38990
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	DE
Entity Common Stock, Shares Outstanding		318,503,330
Entity Tax Identification Number	83-4629508
Title of 12(b) Security	Class A common stock, $0.0001 par value per share
Trading Symbol	ADV
Security Exchange Name	NASDAQ
Entity Address, Address Line One	15310 Barranca Parkway
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Irvine
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92618
City Area Code	949
Local Phone Number	797-2900
Warrant [Member]
Document Information [Line Items]
Title of 12(b) Security	Warrants exercisable for one share of Class A common stock at an exercise price of $11.50 per share
Trading Symbol	ADVWW
Security Exchange Name	NASDAQ