Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									9 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Oct. 10, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 120,545	$ 122,353	$ 111,970	$ 107,442	$ 103,214	$ 102,768	$ 102,161	$ 97,717			$ 462,310	$ 405,860	$ 378,275
Gross profit	57,012	58,849	53,853	49,917	48,001	43,618	46,967	42,861			219,631	181,447	180,045
Net income (loss)	12,944	10,080	4,672	3,846	11,166	4,663	9,539	3,950	$ 8,733	$ (17,313)	31,542	29,318	(8,580)
Net income (loss) attributable to Switch, Inc.—basic	$ 4,048	$ 2,947	$ 1,189	$ 733	$ 2,554	$ 6	$ 821	$ 671			$ 8,917	$ 4,052	$ (15,208)
Basic net income per share (in dollars per share)	$ 0.05	$ 0.04	$ 0.02	$ 0.01	$ 0.05	$ 0.00	$ 0.02	$ 0.02			$ 0.12	$ 0.09	$ (1.88)
Diluted net income per share (in dollars per share)	$ 0.04	$ 0.03	$ 0.02	$ 0.01	$ 0.05	$ 0.00	$ 0.02	$ 0.02			$ 0.11	$ 0.09	$ (1.88)