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Stockholders' Equity - Rollforward (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance (in shares) |  | 90,571,406 |  |  | 90,571,406 |
Beginning balance | $ 10,942,810 | $ 10,881,764 | $ 10,576,675 | $ 10,634,118 | $ 10,881,764 | $ 10,634,118
Beginning balance (in shares) |  | (301,420) |  |  | (301,420) |
Net income (loss) | 216,242 | $ 147,693 | 68,487 | 156,074 | $ 363,935 | 224,561
Other comprehensive income (loss) | (365,877) | 32,840 | 67,745 | (95,481) | $ (333,037) | (27,736)
Issuance of common stock and release of treasury stock | 14,039 |  |  |  |  |
Issuance of common stock and release of treasury stock for employee equity awards |  | 43,876 | 0 | 40,034 |  |
Dividend distribution on common stock | (282,168) | (282,031) | (257,199) | (256,321) |  |
Settlement of accrued dividends on vested equity awards | (57) | (497) | (55) | (437) |  |
Accrued dividends on unvested equity awards | (4,400) | (2,045) | (4,016) | (3,661) |  |
Stock-based compensation, net of estimated forfeitures | $ 109,005 | 121,210 | 95,236 | 102,349 |  |
Ending balance (in shares) | 91,075,115 |  |  |  | 91,075,115 |
Ending balance | $ 10,629,594 | 10,942,810 | 10,646,472 | 10,576,675 | $ 10,629,594 | 10,646,472
Ending balance (in shares) | (265,366) |  |  |  | (265,366) |
ATM Program |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Issuance of common stock |  |  | 99,599 |  |  |
Equinix Stockholders' Equity |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 10,942,885 | 10,882,082 | 10,576,834 | 10,633,988 | $ 10,882,082 | 10,633,988
Net income (loss) | 216,322 | 147,453 | 68,339 | 156,362 |  |
Other comprehensive income (loss) | (365,842) | 32,837 | 67,734 | (95,480) |  |
Issuance of common stock and release of treasury stock | 14,039 |  |  |  |  |
Issuance of common stock and release of treasury stock for employee equity awards |  | 43,876 |  | 40,034 |  |
Dividend distribution on common stock | (282,168) | (282,031) | (257,199) | (256,321) |  |
Settlement of accrued dividends on vested equity awards | (57) | (497) | (55) | (437) |  |
Accrued dividends on unvested equity awards | (4,400) | (2,045) | (4,016) | (3,661) |  |
Stock-based compensation, net of estimated forfeitures | 109,005 | 121,210 | 95,236 | 102,349 |  |
Ending balance | $ 10,629,784 | $ 10,942,885 | 10,646,472 | $ 10,576,834 | $ 10,629,784 | $ 10,646,472
Equinix Stockholders' Equity | ATM Program |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Issuance of common stock |  |  | $ 99,599 |  |  |
Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance (in shares) | 91,303,799 | 90,872,826 | 89,890,922 | 89,462,304 | 90,872,826 | 89,462,304
Beginning balance | $ 91 | $ 91 | $ 90 | $ 89 | $ 91 | $ 89
Issuance of common stock and release of treasury stock (in shares) | 36,682 |  |  |  |  |
Issuance of common stock and release of treasury stock for employee equity awards (in shares) |  | 430,973 | 36,674 | 428,618 |  |
Issuance of common stock and release of treasury stock for employee equity awards |  |  |  | $ 1 |  |
Ending balance (in shares) | 91,340,481 | 91,303,799 | 90,065,200 | 89,890,922 | 91,340,481 | 90,065,200
Ending balance | $ 91 | $ 91 | $ 90 | $ 90 | $ 91 | $ 90
Common Stock | ATM Program |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Issuance of common stock (in shares) |  |  | 137,604 |  |  |
Treasury Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | $ (107,949) | $ (112,208) | $ (117,786) | $ (122,118) | $ (112,208) | $ (122,118)
Beginning balance (in shares) | (289,975) | (301,420) | (316,412) | (328,052) | (301,420) | (328,052)
Issuance of common stock and release of treasury stock (in shares) | 24,609 |  |  |  |  |
Issuance of common stock and release of treasury stock | $ 9,157 |  |  |  |  |
Issuance of common stock and release of treasury stock for employee equity awards (in shares) |  | 11,445 | 1,389 | 11,640 |  |
Issuance of common stock and release of treasury stock for employee equity awards |  | $ 4,259 | $ 516 | $ 4,332 |  |
Ending balance | $ (98,792) | $ (107,949) | $ (117,270) | $ (117,786) | $ (98,792) | $ (117,270)
Ending balance (in shares) | (265,366) | (289,975) | (315,023) | (316,412) | (265,366) | (315,023)
Additional Paid-in Capital |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 16,145,424 | $ 15,984,597 | $ 15,166,407 | $ 15,028,357 | $ 15,984,597 | $ 15,028,357
Issuance of common stock and release of treasury stock | 4,882 |  |  |  |  |
Issuance of common stock and release of treasury stock for employee equity awards |  | 39,617 | (516) | 35,701 |  |
Stock-based compensation, net of estimated forfeitures | 109,005 | 121,210 | 95,236 | 102,349 |  |
Ending balance | 16,259,311 | 16,145,424 | 15,360,726 | 15,166,407 | 16,259,311 | 15,360,726
Additional Paid-in Capital | ATM Program |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Issuance of common stock |  |  | 99,599 |  |  |
Accumulated Dividends |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | (6,449,713) | (6,165,140) | (5,379,693) | (5,119,274) | (6,165,140) | (5,119,274)
Dividend distribution on common stock | (282,168) | (282,031) | (257,199) | (256,321) |  |
Settlement of accrued dividends on vested equity awards | (57) | (497) | (55) | (437) |  |
Accrued dividends on unvested equity awards | (4,400) | (2,045) | (4,016) | (3,661) |  |
Ending balance | (6,736,338) | (6,449,713) | (5,640,963) | (5,379,693) | (6,736,338) | (5,640,963)
AOCI (Loss) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | (1,052,914) | (1,085,751) | (1,008,848) | (913,368) | (1,085,751) | (913,368)
Other comprehensive income (loss) | (365,842) | 32,837 | 67,734 | (95,480) | (333,005) |
Ending balance | (1,418,756) | (1,052,914) | (941,114) | (1,008,848) | (1,418,756) | (941,114)
Retained Earnings |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | 2,407,946 | 2,260,493 | 1,916,664 | 1,760,302 | 2,260,493 | 1,760,302
Net income (loss) | 216,322 | 147,453 | 68,339 | 156,362 |  |
Ending balance | 2,624,268 | 2,407,946 | 1,985,003 | 1,916,664 | 2,624,268 | 1,985,003
Non-controlling Interests |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Beginning balance | (75) | (318) | (159) | 130 | (318) | 130
Net income (loss) | (80) | 240 | 148 | (288) |  |
Other comprehensive income (loss) | (35) | 3 | 11 | (1) |  |
Ending balance | $ (190) | $ (75) | $ 0 | $ (159) | $ (190) | $ 0

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