Net Income Per Share - Calculation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator—basic:
Net income attributable to Switch, Inc.—basic	$ 4,361	$ 5,097	$ 16,002	$ 3,881
Shares of Class B and Class C common stock (in shares)	3,055	6,253	0	4,598
Numerator—diluted:
Net income attributable to Switch, Inc.—diluted	$ 7,416	$ 11,350	$ 16,002	$ 8,479
Denominator—basic:
Weighted average shares outstanding—basic (in shares)	130,163	104,987	128,412	99,676
Basic net income per share (in dollars per share)	$ 0.03	$ 0.05	$ 0.12	$ 0.04
Denominator—diluted:
Weighted average shares outstanding—basic (in shares)	130,163	104,987	128,412	99,676
Weighted average effect of dilutive securities:
Weighted average shares outstanding - diluted (in shares)	245,527	243,916	131,660	243,622
Net income per share - diluted (in dollars per share)	$ 0.03	$ 0.05	$ 0.12	$ 0.03
Stock options
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	2,453	1,615	1,963	1,392
Restricted stock units
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	1,455	1,224	1,180	1,030
Dividend equivalent units
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	43	30	44	30
Restricted stock awards
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	53	55	50	57
Performance-vesting restricted stock units
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	23	0	11	0
Shares of Class B and Class C common stock
Weighted average effect of dilutive securities:
Weighted average effect of dilutive securities (in shares)	111,337	136,005	0	141,437