Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 211,739	$ 216,242	$ 147,693	$ 152,026	$ 68,487	$ 156,074	$ 575,674	$ 376,587
Net (income) loss attributable to non-controlling interests	68			190			(92)	330
Net income attributable to Equinix	$ 211,807			$ 152,216			$ 575,582	$ 376,917
Weighted-average shares used to calculate basic EPS (in shares)	91,896			89,858			91,234	89,614
Effect of dilutive securities:
Employee equity awards (in shares)	239			609			285	588
Weighted-average shares used to calculate diluted EPS (in shares)	92,135			90,467			91,519	90,202
Basic EPS (in dollars per share)	$ 2.30			$ 1.69			$ 6.31	$ 4.21
Diluted EPS (in dollars per share)	$ 2.30			$ 1.68			$ 6.29	$ 4.18