Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	May 06, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-38231
Entity Registrant Name	Switch, Inc.
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	82-1883953
Entity Address, Address Line One	7135 S. Decatur Boulevard
Entity Address, City or Town	Las Vegas,
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89118
City Area Code	(702)
Local Phone Number	444-4111
Title of 12(b) Security	Class A common stock, par value $0.001
Trading Symbol	SWCH
Security Exchange Name	NYSE
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 Central Index Key	0001710583
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		130,927,378
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		110,638,180
Class C Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0