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, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income	$ 275,760	$ 207,013	$ 258,730	$ 211,739	$ 216,242	$ 147,693	$ 741,503	$ 575,674
Net (income) loss attributable to non-controlling interests	34			68			107	(92)
Net income attributable to Equinix	$ 275,794			$ 211,807			$ 741,610	$ 575,582
Weighted-average shares used to calculate basic EPS (in shares)	93,683			91,896			93,396	91,234
Effect of dilutive securities:
Employee equity awards (in shares)	485			239			392	285
Weighted-average shares used to calculate diluted EPS (in shares)	94,168			92,135			93,788	91,519
Basic EPS (in dollars per share)	$ 2.94			$ 2.30			$ 7.94	$ 6.31
Diluted EPS (in dollars per share)	$ 2.93			$ 2.30			$ 7.91	$ 6.29