Organization (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	Oct. 11, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Organization [Line Items]
Payment of stock issuance costs	$ 4.9
IPO
Organization [Line Items]
Net proceeds from sale of stock	$ 577.3
Class A
Organization [Line Items]
Common stock, shares outstanding (in shares)		89,768	55,218
Class A | IPO
Organization [Line Items]
Shares of common stock issued and sold (in shares)	35,900
Price per share (in dollars per share)	$ 17.00
Shares of Class B and Class C common stock | Continuing Members
Organization [Line Items]
Common stock, shares outstanding (in shares)	216,600
Switch, Ltd.
Organization [Line Items]
Ownership percentage		37.80%	22.70%	10.00%