Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 01, 2020	Jun. 28, 2019
Document Information [Line Items]
Entity Registrant Name	Switch, Inc.
Entity Central Index Key	0001710583
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Public Float			$ 863.2
Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		94,877,065
Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		146,410,385
Class C
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0