Cover - shares	3 Months Ended
	Jun. 27, 2020	Jul. 30, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 27, 2020
Document Transition Report	false
Entity File Number	0-17795
Entity Registrant Name	CIRRUS LOGIC, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0024818
Entity Address, Address Line One	800 W. 6th Street
Entity Address, City or Town	Austin,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78701
City Area Code	(512)
Local Phone Number	851-4000
Title of 12(g) Security	Common stock, $0.001 par value
Trading Symbol	CRUS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		58,392,848
Amendment Flag	false
Entity Central Index Key	0000772406
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--03-27