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Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Earnings Per Share [Abstract]            
Net income $ 207,013 $ 258,730 $ 216,242 $ 147,693 $ 465,743 $ 363,935
Net (income) loss attributable to non-controlling interests 17   80   73 (160)
Net income attributable to Equinix $ 207,030   $ 216,322   $ 465,816 $ 363,775
Weighted-average shares used to calculate basic EPS (in shares) 93,535   91,036   93,253 90,904
Effect of dilutive securities:            
Employee equity awards (in shares) 322   226   346 309
Weighted-average shares used to calculate diluted EPS (in shares) 93,857   91,262   93,599 91,213
Basic EPS (in dollars per share) $ 2.21   $ 2.38   $ 5.00 $ 4.00
Diluted EPS (in dollars per share) $ 2.21   $ 2.37   $ 4.98 $ 3.99