Equinix (EQIX) 10-K 26 Feb 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2015	Jan. 29, 2016	Jun. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Trading Symbol	EQIX
Entity Registrant Name	EQUINIX INC
Entity Central Index Key	1,101,239
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		69,025,412
Entity Public Float			$ 14.5

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 2,228,838	$ 610,917
Short-term investments	12,875	529,395
Accounts receivable, net of allowance for doubtful accounts of $10,352 and $9,466	291,964	262,570
Current portion of restricted cash	479,417	3,057
Other current assets	212,929	85,004
Assets held for sale	33,257	0
Total current assets	3,259,280	1,490,943
Long-term investments	4,584	439
Property, plant and equipment, net	5,606,436	4,998,270
Goodwill	1,063,200	1,002,129
Intangible assets, net	224,565	147,527
Restricted cash, less current portion	10,172	14,060
Other assets	188,458	128,610
Total assets	10,356,695	7,781,978
Current liabilities:
Accounts payable and accrued expenses	400,948	285,796
Accrued property, plant and equipment	103,107	114,469
Current portion of capital lease and other financing obligations	40,121	21,362
Current portion of mortgage and loans payable	770,236	59,466
Current portion of convertible debt	146,121	0
Other current liabilities	192,286	162,664
Liabilities held for sale	3,535	0
Total current liabilities	1,656,354	643,757
Capital lease and other financing obligations, less current portion	1,287,139	1,168,042
Mortgage and loans payable, less current portion	472,769	532,809
Convertible debt, less current portion	0	145,229
Senior notes	3,804,634	2,717,046
Other liabilities	390,413	304,964
Total liabilities	$ 7,611,309	$ 5,511,847
Commitments and contingencies (Note 14)
Stockholders' equity:
Preferred stock, $0.001 par value per share: 100,000,000 shares authorized in 2015 and 2014; zero shares issued and outstanding	$ 0	$ 0
Common stock, $0.001 par value per share: 300,000,000 shares authorized in 2015 and 2014; 62,134,894 issued and 62,100,159 outstanding in 2015 and 56,505,122 issued and 56,451,255 outstanding in 2014	62	57
Additional paid-in capital	4,838,444	3,334,305
Treasury stock, at cost; 34,735 shares in 2015 and 53,867 shares in 2014	(7,373)	(11,411)
Accumulated dividends	(1,468,472)	(424,387)
Accumulated other comprehensive loss	(509,059)	(332,443)
Accumulated deficit	(108,216)	(295,990)
Total stockholders' equity	2,745,386	2,270,131
Total liabilities and stockholders' equity	$ 10,356,695	$ 7,781,978

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 10,352	$ 9,466
Preferred Stock, Par value per share (in dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Shares authorized	100,000,000	100,000,000
Preferred Stock, Shares issued	0	0
Preferred Stock, Shares outstanding	0	0
Common Stock, Par value per share (in dollars per share)	$ 0.001	$ 0.001
Common Stock, Shares authorized	300,000,000	300,000,000
Common Stock, Shares issued	62,134,894	56,505,122
Common Stock, Shares outstanding	62,100,159	56,451,255
Treasury stock, at cost (shares)	34,735	53,867

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Revenues	$ 2,725,867,000	$ 2,443,776,000	$ 2,152,766,000
Costs and operating expenses:
Cost of revenues	1,291,506,000	1,197,885,000	1,064,403,000
Sales and marketing	332,012,000	296,103,000	246,623,000
General and administrative	493,284,000	438,016,000	374,790,000
Restructuring reversals	0	0	(4,837,000)
Acquisition costs	41,723,000	2,506,000	10,855,000
Total costs and operating expenses	2,158,525,000	1,934,510,000	1,691,834,000
Income from operations	567,342,000	509,266,000	460,932,000
Interest income	3,581,000	2,891,000	3,387,000
Interest expense	(299,055,000)	(270,553,000)	(248,792,000)
Other income (expense)	(60,581,000)	119,000	5,253,000
Loss on debt extinguishment	(289,000)	(156,990,000)	(108,501,000)
Income from operations before income taxes	210,998,000	84,733,000	112,279,000
Income tax expense	(23,224,000)	(345,459,000)	(16,156,000)
Net income (loss)	187,774,000	(260,726,000)	96,123,000
Net (income) loss attributable to redeemable non-controlling interests	0	1,179,000	(1,438,000)
Net income (loss) attributable to Equinix	$ 187,774,000	$ (259,547,000)	$ 94,685,000
Earnings per share (EPS) attributable to Equinix:
Basic EPS (in dollars per share)	$ 3.25	$ (4.96)	$ 1.92
Weighted-average shares	57,790	52,359	49,438
Diluted EPS (in dollars per share)	$ 3.21	$ (4.96)	$ 1.89
Weighted-average shares	58,483	52,359	50,116

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 187,774	$ (260,726)	$ 96,123
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment (CTA) loss	(186,763)	(204,065)	(18,203)
Net investment hedge CTA gain	4,484	0	0
Unrealized loss on available-for-sale securities	(40)	(279)	(298)
Unrealized gain (loss) on cash flow hedges	4,550	8,790	(1,750)
Net actuarial gain (loss) on defined benefit plans	1,153	(2,001)	0
Total other comprehensive loss, net of tax	(176,616)	(197,555)	(20,251)
Comprehensive income (loss), net of tax	11,158	(458,281)	75,872
Net (income) loss attributable to redeemable non-controlling interests	0	1,179	(1,438)
Other comprehensive (income) loss attributable to redeemable non-controlling interest	0	(1,810)	7,526
Comprehensive income (loss) attributable to Equinix	$ 11,158	$ (458,912)	$ 81,960

Consolidated Statements of Stoc

Consolidated Statements of Stockholders Equity and Other Comprehensive Income (Loss) - USD ($) $ in Thousands	Total	4.75% Convertible Subordinated Notes [Member]	3.00% Convertible Subordinated Notes [Member]	Common stock [Member]	Common stock [Member]4.75% Convertible Subordinated Notes [Member]	Common stock [Member]3.00% Convertible Subordinated Notes [Member]	Treasury stock [Member]	Treasury stock [Member]4.75% Convertible Subordinated Notes [Member]	Treasury stock [Member]3.00% Convertible Subordinated Notes [Member]	Additional paid-in capital [Member]	Additional paid-in capital [Member]4.75% Convertible Subordinated Notes [Member]	Additional paid-in capital [Member]3.00% Convertible Subordinated Notes [Member]	Accumulated dividends [Member]	Accumulated other comprehensive income (loss) [Member]	Accumulated deficit [Member]
Beginning Balance at Dec. 31, 2012	$ 2,313,441			$ 49			$ (36,676)			$ 2,582,238			$ 0	$ (101,042)	$ (131,128)
Beginning Balance, shares at Dec. 31, 2012				(49,139,851)			(363,743)
Net income (loss)	96,123														96,123
Net (income) loss attributable to redeemable non-controlling interests	(1,438)														(1,438)
Other comprehensive loss	(20,251)													(20,251)
Other comprehensive (income) loss attributable to redeemable non-controlling interest	7,526													7,526
Issuance of common stock and release of treasury stock for employee equity awards	31,893			$ 1			$ 805			31,087
Issuance of common stock and release of treasury stock for employee equity awards, shares				1,093,373			8,198
Release of treasury stock upon conversions of convertible debt	6						$ 7			(1)
Release of treasury stock upon conversions of convertible debt, shares							68
Common shares repurchased	(48,799)						$ (48,799)
Common shares repurchased, shares							(288,739)
Change in redemption value of redeemable non-controlling interests	(47,940)									(47,940)
Tax benefit from employee stock plans	25,638									25,638
Stock-based compensation, net of estimated forfeitures	102,865									102,865
Ending Balance at Dec. 31, 2013	2,459,064			$ 50			$ (84,663)			2,693,887			0	(113,767)	(36,443)
Ending Balance, shares at Dec. 31, 2013				(50,233,224)			(644,216)
Net income (loss)	(260,726)														(260,726)
Net (income) loss attributable to redeemable non-controlling interests	1,179														1,179
Other comprehensive loss	(197,555)													(197,555)
Other comprehensive (income) loss attributable to redeemable non-controlling interest	(1,810)													(1,810)
Issuance of common stock and release of treasury stock for employee equity awards	29,320			$ 1			$ 1,185			28,134
Issuance of common stock and release of treasury stock for employee equity awards, shares				933,554			7,846
Common shares repurchased	(297,958)						$ (297,958)
Common shares repurchased, shares							(1,517,743)
Issuance of common stock and release of treasury stock for the exchanges and conversions of convertible debt		$ 190,732	$ 216,958		$ 2	$ 1		$ 147,706	$ 139,004		$ 43,024	$ 77,953
Issuance of common stock and release of treasury stock for the exchanges and conversions of convertible debt, debt					1,411,851	1,248,578		1,000,102	700,000
Issuance of common stock and release of treasury stock for conversions of convertible debt			$ 178,744			$ 1			$ 83,315			$ 95,428
Issuance of common stock and release of treasury stock for conversions of convertible debt, shares						1,195,496			400,144
Issuance of common stock and cash payment for special distribution	(82,122)			$ 2						332,732			(414,856)
Issuance of common stock for special distribution, shares				1,482,419
Accrued dividends on unvested equity awards	(9,531)												(9,531)
Change in redemption value of redeemable non-controlling interests	(90,913)									(90,913)
Purchase of redeemable non-controlling interests	(1,334)									17,977				(19,311)
Tax benefit from employee stock plans	18,561									18,561
Stock-based compensation, net of estimated forfeitures	117,522									117,522
Ending Balance at Dec. 31, 2014	$ 2,270,131			$ 57			$ (11,411)			3,334,305			(424,387)	(332,443)	(295,990)
Ending Balance, shares at Dec. 31, 2014	(56,451,255)			(56,505,122)			(53,867)
Net income (loss)	$ 187,774														187,774
Net (income) loss attributable to redeemable non-controlling interests	0
Other comprehensive loss	(176,616)													(176,616)
Issuance of common stock in public offering of common stock	829,496			$ 3						829,493
Issuance of common stock in public offering of common stock, shares				2,994,792
Other comprehensive (income) loss attributable to redeemable non-controlling interest	0
Issuance of common stock and release of treasury stock for employee equity awards	30,040			$ 1			$ 1,546			28,493
Issuance of common stock and release of treasury stock for employee equity awards, shares				856,406			7,348
Issuance of common stock and release of treasury stock for the exchanges and conversions of convertible debt		$ 7,884			$ 0			$ 2,492			$ 5,392
Issuance of common stock and release of treasury stock for the exchanges and conversions of convertible debt, debt					90,163			11,784
Dividend distributions	(393,584)												(393,584)
Settlement of accrued dividends on vested equity awards	3,775									3,775
Issuance of common stock and cash payment for special distribution	(125,707)			$ 1						501,513			(627,221)
Issuance of common stock for special distribution, shares				1,688,411
Accrued dividends on unvested equity awards	(23,280)												(23,280)
Tax benefit from employee stock plans	30									30
Stock-based compensation, net of estimated forfeitures	135,443									135,443
Ending Balance at Dec. 31, 2015	$ 2,745,386			$ 62			$ (7,373)			$ 4,838,444			$ (1,468,472)	$ (509,059)	$ (108,216)
Ending Balance, shares at Dec. 31, 2015	(62,100,159)			(62,134,894)			(34,735)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 187,774	$ (260,726)	$ 96,123
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	498,134	453,935	405,444
Stock-based compensation	132,443	117,990	102,940
Excess tax benefits from stock-based compensation	(30)	(19,582)	(27,330)
Amortization of intangible assets	27,446	27,756	27,027
Amortization of debt issuance costs and debt discounts	16,050	18,667	23,868
Provision for allowance for doubtful accounts	5,037	7,093	5,819
Restructuring charges (reversals)	0	0	(4,837)
Loss on debt extinguishment	289	156,990	108,501
Foreign currency transactions and other, net	16,490	19,912	11,543
Changes in operating assets and liabilities:
Accounts receivable	(44,583)	(101,966)	(27,956)
Income taxes, net	(109,579)	226,774	(108,189)
Other assets	(70,371)	(6,496)	(36,853)
Accounts payable and accrued expenses	109,125	10,681	7,242
Other liabilities	126,568	38,392	21,266
Net cash provided by operating activities	894,793	689,420	604,608
Cash flows from investing activities:
Purchases of investments	(359,031)	(545,997)	(968,971)
Sales of investments	837,708	573,582	276,351
Maturities of investments	35,431	211,966	213,484
Business acquisitions, net of cash acquired	(245,553)	0	(49,337)
Purchases of real estate	(38,282)	(16,791)	(74,332)
Purchases of other property, plant and equipment	(868,120)	(660,203)	(572,406)
Increase in restricted cash	(512,319)	(968)	(837,190)
Release of restricted cash	15,239	2,572	843,088
Net cash used in investing activities	(1,134,927)	(435,839)	(1,169,313)
Cash flows from financing activities:
Purchases of treasury stock	0	(297,958)	(48,799)
Proceeds from employee equity awards	30,040	29,320	31,892
Excess tax benefits from stock-based compensation	30	19,582	27,330
Payment of dividends and special distribution	(521,461)	(83,266)	0
Purchase of non-controlling interests	0	(226,276)	0
Proceeds from public offering of common stock, net of issuance costs	829,496	0	0
Proceeds from senior notes	1,100,000	1,250,000	1,500,000
Proceeds from loans payable	1,197,108	508,826	28,038
Repayment of senior notes	0	(750,000)	(750,000)
Repayment of convertible debt	0	(29,513)	0
Repayment of capital lease and other financing obligations	(28,663)	(18,030)	(40,133)
Repayment of mortgage and loans payable	(715,270)	(153,473)	(52,500)
Debt extinguishment costs	0	(116,517)	(97,864)
Debt issuance costs	(18,098)	(25,294)	(23,057)
Net cash provided by financing activities	1,873,182	107,401	574,907
Effect of foreign currency exchange rates on cash and cash equivalents	(15,127)	(11,959)	(521)
Net increase in cash and cash equivalents	1,617,921	349,023	9,681
Cash and cash equivalents at beginning of period	610,917	261,894	252,213
Cash and cash equivalents at end of period	2,228,838	610,917	261,894
Supplemental cash flow information
Cash paid for taxes	132,302	117,197	123,690
Cash paid for interest	$ 237,410	$ 262,018	$ 210,629

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Nature of Business and Summary of Significant Accounting Policies	Nature of Business and Summary of Significant Accounting Policies Nature of Business Equinix, Inc. (“Equinix” or the “Company”) was incorporated in Delaware on June 22, 1998. Equinix provides colocation space and related services. Global enterprises, content providers, financial companies and network service providers rely upon Equinix’s insight and expertise to safehouse and connect their most valued information assets. The Company operates International Business Exchange TM (“IBX®”) data centers, or IBX data centers across Americas; Europe, Middle East and Africa (“EMEA”) and Asia-Pacific geographic regions where customers directly interconnect with a network ecosystem of partners and customers. More than 1,000 network service providers offer access to the world’s Internet routes inside the Company’s IBX data centers. This access to Internet routes provides Equinix customers improved reliability and streamlined connectivity while significantly reducing costs by reaching a critical mass of networks within a centralized physical location. The Company began operating as a Real Estate Investment Trust ("REIT") for federal income tax purposes effective January 1, 2015. See “Income Taxes” in Note 1 below for additional information. On November 2, 2015, the Company acquired Bit-isle, Inc. ("Bit-isle), a Tokyo-based company which primarily provides data center services in Japan. On January 15, 2016, the Company completed its acquisition of Telecity Group plc ("TelecityGroup") which provides data center services in Europe. As a result of these acquisitions, the Company operates 145 IBX data centers in 40 markets across five continents. Basis of Presentation, Consolidation and Foreign Currency The accompanying consolidated financial statements include the accounts of Equinix and its subsidiaries, including the acquisitions of Bit-isle Inc. ("Bit-isle) from November 2, 2015, Nimbo Technologies Inc. ("Nimbo") from January 14, 2015 and Frankfurt Kleyer 90 Carrier Hotel from October 1, 2013. All intercompany accounts and transactions have been eliminated in consolidation. Foreign exchange gains or losses resulting from foreign currency transactions, including intercompany foreign currency transactions, that are anticipated to be repaid within the foreseeable future, are reported within other income (expense) on the Company’s accompanying consolidated statements of operations. For additional information on the impact of foreign currencies to the Company’s consolidated financial statements, see “Accumulated Other Comprehensive Loss” in Note 11. Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States ("U.S.") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to the allowance for doubtful accounts, fair values of financial instruments, intangible assets and goodwill, useful lives of intangible assets and property, plant and equipment, assets acquired and liabilities assumed from acquisitions, asset retirement obligations, restructuring charges, redemption value of redeemable non-controlling interests and income taxes. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable. Cash, Cash Equivalents and Short-Term and Long-Term Investments The Company considers all highly liquid instruments with an original maturity from the date of purchase of three months or less to be cash equivalents. Cash equivalents consist of money market mutual funds and highly liquid debt securities of corporations and certificates of deposit with original maturities up to 90 days. Short-term investments generally consist of debt securities with original maturities of between 90 days and one year. Long-term investments consist of debt securities with original maturities greater than 365 days and publicly traded equity securities. The Company’s fixed income securities and publicly traded equity securities are classified as “available-for-sale” and are carried at fair value with unrealized gains and losses reported in stockholders’ equity as a component of other comprehensive income (loss). The cost of securities sold is based on the specific identification method. The Company reviews its investment portfolio quarterly to determine if any securities may be other-than-temporarily impaired due to increased credit risk, changes in industry or sector of a certain instrument or ratings downgrades. Equity method and cost method investments The Company's non-marketable securities are accounted under cost method accounting. The Company records the dividends declared by the investees in other income and expense in the consolidated statement of operations and records any dividends in excess of earnings as a reduction of cost of investment. The Company's other equity investments include private equity investments which are accounted under equity method accounting. The Company adjusts the carrying amount of an investment for its share of the earnings and losses of the investees and recognizes its share of income or loss in other income and expense in the consolidated statement of operations. The Company records cost method and equity method investments in other assets in the consolidated balance sheet. The Company reviews these investments periodically to determine if any investments may be other-than-temporarily impaired primarily based on the financial condition and near-term prospects of these companies and funds. Financial Instruments and Concentration of Credit Risk Financial instruments which potentially subject the Company to concentrations of credit risk consist of cash, cash equivalents, short-term investments, long-term investments and accounts receivable. Risks associated with cash, cash equivalents, short-term investments and long-term investments are mitigated by the Company’s investment policy, which limits the Company’s investing to only those marketable securities rated at least A-1/P-1 Short Term Rating and A-/A3 Long Term Rating, as determined by independent credit rating agencies. Risk to the Company’s investment portfolio is further mitigated by its significant weighting in U.S. government securities in order to achieve REIT asset measure requirements. A significant portion of the Company’s customer base is comprised of businesses throughout the Americas. However, a portion of the Company’s revenues are derived from the Company’s EMEA and Asia-Pacific operations. The following table sets forth percentages of the Company’s revenues by geographic region for the years ended December 31: 2015 2014 2013 Americas 55 % 56 % 59 % EMEA 26 % 26 % 24 % Asia-Pacific 19 % 18 % 17 % No single customer accounted for greater than 10% of accounts receivable or revenues as of or for the years ended December 31, 2015, 2014 and 2013. Property, Plant and Equipment Property, plant and equipment are stated at the Company’s original cost or fair value for acquired property, plant and equipment. Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements and assets acquired under capital leases are amortized over the shorter of the lease term or the estimated useful life of the asset or improvement, unless they are considered integral equipment, in which case they are amortized over the lease term. Leasehold improvements acquired in a business combination are amortized over the shorter of the useful life of the assets or a term that includes required lease periods and renewals that are deemed to be reasonably assured at the date of acquisition. Leasehold improvements that are placed into service significantly after and not contemplated at or near the beginning of the lease term are amortized over the shorter of the useful life of the assets or a term that includes required lease periods and renewals that are deemed to be reasonably assured at the date the leasehold improvements are purchased. The Company’s estimated useful lives of its property, plant and equipment are as follows: Core systems 3-25 years Buildings 12-50 years Leasehold improvements 12-40 years Construction in progress N/A Personal Property 3-10 years During the three months ended December 31, 2014, the Company revised the estimated useful lives of certain of its property, plant and equipment as part of a review of the related assumptions. As a result, the Company recorded an insignificant amount of higher depreciation expense for the quarter ended December 31, 2014 due to the reduction of the estimated useful lives of certain of its property, plant and equipment. This change was accounted for as a change in accounting estimate on a prospective basis effective October 1, 2014 under the accounting standard for change in accounting estimates. The Company did not revise the estimated useful lives of the property, plant and equipment during the years ended December 31, 2015 and 2013. The Company’s construction in progress includes direct and indirect expenditures for the construction and expansion of IBX data centers and is stated at original cost. The Company has contracted out substantially all of the construction and expansion efforts of its IBX data centers to independent contractors under construction contracts. Construction in progress includes costs incurred under construction contracts including project management services, engineering and schematic design services, design development, construction services and other construction-related fees and services. In addition, the Company has capitalized interest costs during the construction phase. Once an IBX data center or expansion project becomes operational, these capitalized costs are allocated to certain property, plant and equipment categories and are depreciated over the estimated useful life of the underlying assets. Asset Retirement Costs The fair value of a liability for an asset retirement obligation is recognized in the period in which it is incurred. The associated retirement costs are capitalized and included as part of the carrying value of the long-lived asset and amortized over the useful life of the asset. Subsequent to the initial measurement, the Company accretes the liability in relation to the asset retirement obligations over time and the accretion expense is recorded as a cost of revenue. The Company’s asset retirement obligations are primarily related to its IBX data centers, of which the majority are leased under long-term arrangements, and, in certain cases, are required to be returned to the landlords in their original condition. The majority of the Company’s IBX data center leases have been subject to significant development by the Company in order to convert them from, in most cases, vacant buildings or warehouses into IBX data centers. The majority of the Company’s IBX data centers’ initial lease terms expire at various dates ranging from 2017 to 2065 and most of them enable the Company to extend the lease terms. Goodwill and Other Intangible Assets The Company has three reportable segments comprised of the 1) Americas, 2) EMEA and 3) Asia-Pacific geographic regions, which the Company also determined are its reporting units. As of December 31, 2015, the Company had goodwill attributable to its Americas, EMEA and Asia-Pacific reporting units. In 2014, the Company changed its annual goodwill impairment testing date from November 30 th to October 31 st of each year, commencing on October 31, 2014, to better align its annual goodwill impairment test with the timing of the Company’s budgeting and forecasting process. The Company has the option to assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, after assessing the qualitative factors, the Company determines that it is not more likely than not that the fair value of a reporting unit is less than its carrying value, then performing the two-step impairment test is unnecessary. However, if the Company concludes otherwise, then it is required to perform the first step of the two-step goodwill impairment test. The first step, identifying a potential impairment, compares the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be conducted; otherwise, no further steps are necessary as no potential impairment exists. The second step, measuring the impairment loss, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. Any excess of the reporting unit goodwill carrying value over the respective implied fair value is recognized as an impairment loss. The Company assessed qualitative and quantitative factors during the fourth quarter of 2015 to determine whether it was more likely than not that the fair value of its Americas reporting unit, EMEA reporting unit and Asia-Pacific reporting unit was less than its carrying value. Qualitative factors considered in the assessment include industry and market conditions, overall financial performance, and other relevant events and factors affecting the reporting unit. Additionally, as part of this analysis, the Company may perform a quantitative analysis to support the qualitative factors by evaluating sensitivities to assumptions and inputs used in measuring a reporting unit's fair value. Prior to 2015, the Company performed the first step of the two-step goodwill impairment test for its Americas, EMEA and Asia-Pacific reporting units during the quarter ended December 31, 2014 and 2013. In order to determine the fair value of each reporting unit, the Company utilizes the discounted cash flow and market methods. The Company had used both methods in its goodwill impairment tests as it believes both methods, in conjunction with each other, provide a reasonable estimate of the determination of fair value of each reporting unit – the discounted cash flow method being specific to anticipated future results of the reporting unit and the market method, which is based on the Company’s market sector including its competitors. The assumptions supporting the discounted cash flow method was determined using the Company’s best estimates as of the date of the impairment review. As of October 31, 2015, the Company concluded that it was more likely than not that goodwill attributed to the Company’s Americas, EMEA and Asia-Pacific reporting units was not impaired as the fair value of each reporting unit exceeded the carrying value of its respective reporting unit, including goodwill. In addition, the Company concluded that no events occurred or circumstances changed subsequent to October 31, 2015 through December 31, 2015 that would more likely than not reduce the fair value of the Americas, EMEA and Asia-Pacific reporting units below its carrying value. The Company has performed various sensitivity analyses on certain of the assumptions used in the discounted cash flow method, such as forecasted revenues and discount rate, and notes that no reasonably possible changes would reduce the fair value of the reporting unit to such a level that would cause an impairment charge. Impairment assessments inherently involve judgment as to assumptions about expected future cash flows and the impact of market conditions on those assumptions. Future events and changing market conditions may impact the Company’s assumptions as to prices, costs, growth rates or other factors that may result in changes in the Company’s estimates of future cash flows. Although the Company believes the assumptions it used in testing for impairment are reasonable, significant changes in any one of the Company’s assumptions could produce a significantly different result. Indicators of potential impairment that might lead the Company to perform interim goodwill impairment assessments include significant and unforeseen customer losses, a significant adverse change in legal factors or in the business climate, a significant adverse action or assessment by a regulator, a significant stock price decline or unanticipated competition. For further information on goodwill and other intangible assets, see Note 5 below. Debt Issuance Costs Loan fees and costs are capitalized and are amortized over the life of the related loans based on the effective interest method. Such amortization is included as a component of interest expense. The Company adopted Accounting Standards Update 2015-03, Interest - Imputation of Interest (“ASU 2015-03”), and Accounting Standards Update 2015-15, Interest - Imputation of Interest Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements (“ASU 2015-15”), during the year ended December 31, 2015. In accordance with ASU 2015-03, loan fees and costs associated with outstanding debt have been classified as a reduction of debt in the accompanying consolidated balance sheets. In accordance with ASU 2015-15, loans fees and costs associated with the line-of-credit arrangements have been classified as other assets in the accompanying consolidated balance sheets. As a result of the adoption of ASU 2015-03, the Company reclassified debt issuance costs of $35,455,000 at December 31, 2014 from other assets to debt. As of December 31, 2015, debt issuance costs of $47,028,000 were classified as a reduction of debt. Derivatives and Hedging Activities The Company recognizes all derivatives on the consolidated balance sheet at fair value. The accounting for changes in the value of a derivative depends on whether the contract is for trading purposes or has been designated and qualifies for hedge accounting. In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. In order for a derivative to be designated as a hedge, there must be documentation of the risk management objective and strategy, including identification of the hedging instrument, the hedged item and the risk exposure, and how effectiveness is to be assessed prospectively and retrospectively. Foreign currency gains or losses associated with derivatives that do not qualify for hedge accounting are recorded within other income (expense), net in the Company’s consolidated statements of operations, with the exception of foreign currency embedded derivatives contained in certain of the Company’s customer contracts (see “Revenue Recognition” below), which are recorded within revenues in the Company’s consolidated statements of operations. To assess effectiveness of derivatives that qualify for hedge accounting, the Company uses a regression analysis. The extent to which a hedging instrument has been and is expected to continue to be effective at achieving offsetting changes in cash flows is assessed and documented at least quarterly. Any ineffectiveness is reported in current-period earnings. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued. For qualifying cash flow hedges, the effective portion of the change in the fair value of the derivative is recorded in other comprehensive income (loss) and recognized in the consolidated statements of operations when the hedged cash flows affect earnings. The ineffective portion of cash flow hedges is immediately recognized in earnings. If the hedge relationship is terminated, then the change in fair value of the derivative recorded in other comprehensive income (loss) is recognized in earnings when the cash flows that were hedged occur, consistent with the original hedge strategy. For hedge relationships discontinued because the forecasted transaction is not expected to occur according to the original strategy, any related derivative amounts recorded in other comprehensive income (loss) are immediately recognized in earnings. The Company does not use derivatives for speculative or trading purposes. For further information on derivatives and hedging activities, see Note 6 below. Fair Value of Financial Instruments The carrying value of the Company’s cash and cash equivalents, short-term and long-term investments represent their fair value, while the Company’s accounts receivable, accounts payable and accrued expenses and accrued property, plant and equipment approximate their fair value due primarily to the short-term maturity of the related instruments. The fair value of the Company’s debt, which is traded in the public debt market, is based on quoted market prices. The fair value of the Company’s debt, which is not publicly traded, is estimated by considering the Company’s credit rating, current rates available to the Company for debt of the same remaining maturities and terms of the debt. Fair Value Measurements The Company measures and reports certain financial assets and liabilities at fair value on a recurring basis, including its investments in money market funds and available-for-sale debt investments in other public companies, governmental units and other agencies, publicly traded equity securities and derivatives. The Company also follows the accounting standard for the measurement of fair value for non-financial assets and liabilities on a nonrecurring basis. These include: • Non-financial assets and non-financial liabilities initially measured at fair value in a business combination or other new basis event, but not measured at fair value in subsequent reporting periods; • Reporting units and non-financial assets and non-financial liabilities measured at fair value for goodwill impairment tests; • Indefinite-lived intangible assets measured at fair value for impairment assessments; • Non-financial long-lived assets or asset groups measured at fair value for impairment assessments or disposal; • Asset retirement obligations initially measured at fair value but not subsequently measured at fair value; and • Non-financial liabilities associated with exit or disposal activities initially measured at fair value but not subsequently measured at fair value. For further information on fair value measurements, see Note 7 below. Impairment of Long-Lived Assets The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable such as a significant decrease in market price of a long-lived asset, a significant adverse change in legal factors or business climate that could affect the value of a long-lived asset or a continuous deterioration of the Company’s financial condition. Recoverability of assets to be held and used is assessed by comparing the carrying amount of an asset to estimated undiscounted future net cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its estimated discounted future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. The Company did not record any impairment charges related to its long-lived assets during the years ended December 31, 2015, 2014 and 2013. Revenue Recognition Equinix derives more than 90% of its revenues from recurring revenue streams, consisting primarily of (1) colocation, which includes the licensing of cabinet space and power; (2) interconnection offerings, such as cross connects and Equinix Exchange ports; (3) managed infrastructure services and (4) other revenues consisting of rental income from tenants or subtenants. The remainder of the Company’s revenues are from non-recurring revenue streams, such as installation revenues, professional services, contract settlements and equipment sales. Revenues from recurring revenue streams are generally billed monthly and recognized ratably over the term of the contract, generally one to three years for IBX data center colocation customers. Non-recurring installation fees, although generally paid in a lump sum upon installation, are deferred and recognized ratably over the period the customer is expected to benefit from the installation. Professional service fees are recognized in the period in which the services were provided and represent the culmination of a separate earnings process as long as they meet the criteria for separate recognition under the accounting standard related to revenue arrangements with multiple deliverables. Revenue from bandwidth and equipment sales is recognized on a gross basis in accordance with the accounting standard related to reporting revenue gross as a principal versus net as an agent, primarily because the Company acts as the principal in the transaction, takes title to products and services and bears inventory and credit risk. To the extent the Company does not meet the criteria for recognizing bandwidth and equipment services as gross revenue, the Company records the revenue on a net basis. Revenue from contract settlements, when a customer wishes to terminate their contract early, is generally recognized on a cash basis, when no remaining performance obligations exist, to the extent that the revenue has not previously been recognized. The Company guarantees certain service levels, such as uptime, as outlined in individual customer contracts. To the extent that these service levels are not achieved, the Company reduces revenue for any credits given to the customer as a result. The Company generally has the ability to determine such service level credits prior to the associated revenue being recognized, and historically, these credits have generally not been significant. There were no significant service level credits issued during the years ended December 31, 2015, 2014 and 2013. Revenue is recognized only when the service has been provided and when there is persuasive evidence of an arrangement, the fee is fixed or determinable and collection of the receivable is reasonably assured. It is the Company’s customary business practice to obtain a signed master sales agreement and sales order prior to recognizing revenue in an arrangement. Taxes collected from customers and remitted to governmental authorities are reported on a net basis and are excluded from revenue. As a result of certain customer agreements being priced in currencies different from the functional currencies of the parties involved, under applicable accounting rules, the Company is deemed to have foreign currency forward contracts embedded in these contracts. The Company refers to these as foreign currency embedded derivatives (see Note 6). These instruments are separated from their host contracts and held on the Company’s consolidated balance sheet at their fair value. The majority of these foreign currency embedded derivatives arise in certain of the Company’s subsidiaries where the local currency is the subsidiary’s functional currency and the customer contract is denominated in the U.S. dollar. Changes in their fair values are recognized within revenues in the Company’s consolidated statements of operations. The Company assesses collectability based on a number of factors, including past transaction history with the customer and the credit-worthiness of the customer. The Company generally does not request collateral from its customers although in certain cases the Company obtains a security interest in a customer’s equipment placed in its IBX data centers or obtains a deposit. If the Company determines that collection of a fee is not reasonably assured, the fee is deferred and revenue is recognized at the time collection becomes reasonably assured, which is generally upon receipt of cash. In addition, the Company also maintains an allowance for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments for which the Company had expected to collect the revenues. If the financial condition of the Company’s customers were to deteriorate or if they became insolvent, resulting in an impairment of their ability to make payments, greater allowances for doubtful accounts may be required. Management specifically analyzes accounts receivable and current economic news and trends, historical bad debts, customer concentrations, customer credit-worthiness and changes in customer payment terms when evaluating revenue recognition and the adequacy of the Company’s reserves. Any amounts that were previously recognized as revenue and subsequently determined to be uncollectible are charged to bad debt expense included in general and administrative expense in the consolidated statements of operations. A specific bad debt reserve of up to the full amount of a particular invoice value is provided for certain problematic customer balances. An additional reserve is established for all other accounts based on the age of the invoices and an analysis of historical credits issued. Delinquent account balances are written-off after management has determined that the likelihood of collection is not probable. Income Taxes Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that are expected more likely than not to be realized in the future. A tax benefit from an uncertain income tax position may be recognized in the financial statements only if it is more likely than not that the position is sustainable, based solely on its technical merits and consideration of the relevant taxing authority’s widely understood administrative practices and precedents. The Company began operating as a REIT for federal income tax purposes effective January 1, 2015. In May 2015, the Company received a favorable private letter ruling (“PLR”) from the U.S. Internal Revenue Service (“IRS”). As a result, the Company may deduct the distributions made to its shareholders from taxable income generated by the Company's Qualified REIT Subsidiaries (“QRSs”). The Company’s dividends paid deduction generally eliminates the U.S. taxable income of the Company's QRSs, resulting in no U.S. income tax due. However, the Taxable REIT Subsidiaries (“TRSs”) will continue to be subject to income taxes on any taxable income generated by them. In addition, the foreign operations of the Company will continue to be subject to local income taxes regardless of whether the foreign operations are operated as a QRS or TRS. The Company recognizes interest and penalties related to unrecognized tax benefits within income tax benefit (expense) in the consolidated statements of operations. Stock-Based Compensation Stock-based compensation cost is measured at the grant date for all stock-based awards made to employees and directors based on the fair value of the award and is recognized as expense over the requisite service period, which is generally the vesting period. The Company grants restricted stock units to its employees and these equity awards generally have only a service condition. The Company grants restricted stock units to its executives and these awards generally have a service and performance condition or a service and market condition. To date, any performance conditions contained in an equity award are tied to the financial performance of the Company or a specific region of the Company. The Company assesses the probability of meeting these performance conditions on a quarterly basis. The majority of the Company’s equity awards vest over four years, although certain of the equity awards for executives vest over a range of two to four years. The valuation of restricted stock units with only a service condition or a se

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Acquisitions	Acquisitions Bit-isle Acquisition On November 2, 2015, the Company, acting through its Japanese subsidiary, completed a cash tender offer for approximately 97% of the equity instruments, including stock options, of Tokyo-based Bit-isle. The Company acquired the remaining outstanding equity instruments of Bit-isle in December 2015. The offer price was JPY 922 per share, in an all cash transaction totaling ¥33,196,000,000 or approximately $275,367,000 . On September 30, 2015, the Company, acting through its Japanese subsidiaries as borrowers, entered into a term loan agreement (the “Bridge Term Loan Agreement”) with the Bank of Tokyo-Mitsubishi UFJ, Ltd. (“BTMU”). Pursuant to the Bridge Term Loan Agreement, BTMU has committed to provide a senior bridge loan facility (the “Bridge Term Loan”) in the amount of up to ¥47,500,000,000 , or approximately $395,339,000 at the exchange rate in effect on December 31, 2015. Proceeds from the Bridge Term Loan are to be used exclusively for the acquisition of Bit-isle, the repayment of Bit-isle’s existing debt and transaction costs incurred in connection with the closing of the Bridge Term Loan and the acquisition of Bit-isle. For further information on the Bridge Term Loan, see Note 9 below. The Company included Bit-isle’s results of operations from November 2, 2015 and the estimated fair value of assets acquired and liabilities assumed in its consolidated balance sheets beginning November 2, 2015. The Company incurred acquisition costs of approximately $8,645,000 for the year ended December 31, 2015 related to the Bit-isle Acquisition. The Company has initially designated all the legal entities acquired in the Bit-isle Acquisition as taxable REIT subsidiaries (“TRSs”). Purchase Price Allocation Under the acquisition method of accounting, the total purchase price was allocated to Bit-isle’s net tangible and intangible assets based upon their fair value as of the Bit-isle acquisition date. Based upon the purchase price and the valuation of Bit-isle, the purchase price allocation was as follows (in thousands): Cash and cash equivalent $ 33,198 Accounts receivable 7,359 Other current assets 51,038 Long-term investments 3,806 Property, plant and equipment 308,985 Goodwill 95,444 Intangible assets 111,374 Other assets 22,981 Total assets acquired 634,185 Accounts payable and accrued expenses (15,028 ) Accrued property, plant and equipment (465 ) Capital lease and other financing obligations (108,833 ) Mortgage and loans payable (190,227 ) Other current liabilities (8,689 ) Deferred tax liabilities (32,192 ) Other liabilities (3,384 ) Net assets acquired $ 275,367 The following table presents certain information on the acquired identifiable intangible assets (dollars in thousands): Intangible assets Fair value Estimated useful lives (years) Weighted-average estimated useful lives (years) Customer relationships $ 105,434 13 13.0 Trade name 3,455 2 2.0 Favorable solar contracts 2,410 18 18.0 Other intangible assets 75 0.25 0.25 The fair value of customer relationships was estimated by applying an income approach. The fair value was determined by calculating the present value of estimated future operating cash flows generated from existing customers less costs to realize the revenue. The Company applied a weighted-average discount rate of approximately 11.0% , which reflected the nature of the assets as it relates to the estimated future operating cash flows. Other significant assumptions used to estimate the fair value of the customer relationships include projected revenue growth, customer attrition rates, sales and marketing expenses and operating margins. The fair value of the Bit-isle trade name was estimated using the relief of royalty approach. The Company applied a relief of royalty rate of 2.0% and a weighted-average discount rate of approximately 12.0% . The other acquired identifiable intangible assets were estimated by applying an income or cost approach as appropriate. The fair value measurements were based on significant inputs that are not observable in the market and thus represent Level 3 measurements as defined in the accounting standard for fair value measurements. The Company determined the fair value of the loans payable assumed in the Bit-isle Acquisition by estimating Bit-isle’s debt rating and reviewed market data with a similar debt rating and other characteristics of the debt, including the maturity date and security type. During the year ended December 31, 2015, the Company prepaid and terminated the majority of these loans payable. In conjunction with the repayment of the loans payable, the company incurred an insignificant amount of pre-payment penalties and interest rate swap termination costs, which were recorded as interest expense in the consolidated statement of operations. Goodwill represents the excess of the purchase price over the fair value of the net tangible and intangible assets acquired. The goodwill is not expected to be deductible for local tax purposes. Goodwill will not be amortized and will be tested for impairment at least annually. Goodwill recorded as a result of the Bit-isle acquisition is attributable to the Company’s Asia-Pacific reportable segment (see Note 16) and reporting unit (see Note 5). For the quarter and year ended December 31, 2015, Bit-isle recognized revenues of $21,588,000 and had a net loss of $3,233,000 , which were included in the Company’s consolidated statements of operations. Unaudited Pro Forma Combined Consolidated Financial Information The following unaudited pro forma combined consolidated financial information has been prepared by the Company using the acquisition method of accounting to give effect to the Bit-isle Acquisition as though the acquisition occurred on January 1, 2014. The unaudited pro forma combined consolidated financial information reflect certain adjustments, such as additional depreciation, amortization and interest expense on assets and liabilities acquired. The unaudited pro forma combined consolidated financial information is presented for illustrative purposes only and is not necessarily indicative of the results of operations that would have actually been reported had the acquisitions occurred on the above dates, nor is it necessarily indicative of the future results of operations of the combined company. The following table sets forth the unaudited pro forma consolidated combined results of operations for the years ended December 31 (in thousands): 2015 2014 Revenues $ 2,847,411 $ 2,614,127 Net income 195,501 (251,067 ) Nimbo Acquisition On January 14, 2015, the Company acquired all of the issued and outstanding share capital of Nimbo Technologies Inc. (“Nimbo”), a company which specializes in migrating business applications to the cloud with extensive experience moving legacy applications into a hybrid cloud architecture, and connecting legacy data centers to the cloud, for a cash payment of $10,000,000 and a contingent earn-out arrangement to be paid over two years (the “Nimbo Acquisition”). Nimbo continues to operate under the Nimbo name. The Nimbo Acquisition was accounted for using the acquisition method. As a result of the Nimbo Acquisition, the Company recorded goodwill of $17,192,000 , which represents the excess of the total purchase price over the fair value of the assets acquired and liabilities assumed. The Company recorded the contingent earn-out arrangement at its estimated fair value. The results of operations for Nimbo are not significant to the Company; therefore, the Company does not present its purchase price allocation or pro forma combined results of operations. In addition, any prospective changes in the Company’s earn-out estimates are not expected to have a material effect on the Company’s consolidated statement of operations. Offer for TelecityGroup On May 29, 2015, the Company announced a cash and share offer for the entire issued and to be issued share capital of Telecity Group plc (“TelecityGroup”). TelecityGroup operates data center facilities in strategic internet hub cities across Europe. The acquisition of TelecityGroup enhances the Company’s existing data center portfolio by adding seven new markets in Europe including Bulgaria, Finland, Ireland, Italy, Poland, Sweden and Turkey. The transaction closed in January 2016. See Note 18 for additional information. As the offer to TelecityGroup included an element of cash, the Company was required to include a confirmation that the Company had sufficient cash available to fulfill the offer, according to the UK Takeover Code. As a result, the Company placed £322,851,000 or approximately $475,689,000 into a restricted cash account, which was included in the current portion of restricted cash in the consolidated balance sheet as of December 31, 2015. In connection with TelecityGroup acquisition, the Company entered into a bridge credit agreement with J.P. Morgan Chase Bank, N.A. (“JPMCB”) as the initial lender and as administrative agent for the lenders (the “Lenders”) for a principal amount of £875,000,000 or approximately $1,289,000,000 at the exchange rate in effect on December 31, 2015 (the “Bridge Loan”). The Bridge Loan had an initial maturity of 12 months from the date of the first drawdown and, at the initial maturity date (if not repaid prior to that time), would have been converted into seven -year extended term loan. Commitment fees associated with the Bridge Loan were approximately £4,375,000 or $6,446,000 at the exchange rate in effect on December 31, 2015. As of December 31, 2015, the Company had accrued the commitment fees associated with the Bridge Loan and the fees were included in interest expense in the consolidated statement of operations. The Bridge Loan was unsecured and was guaranteed by certain of the Company’s domestic subsidiaries. As of December 31, 2015, the Company had not made any advances on the Bridge Loan. The Bridge Loan was terminated on January 8, 2016. The Company will initially designate all the legal entities acquired as taxable REIT subsidiaries (“TRSs”). Frankfurt Kleyer 90 Carrier Hotel Acquisition On October 1, 2013, the Company completed the purchase of a property located in Frankfurt, Germany for cash consideration of approximately $50,092,000 (the “Frankfurt Kleyer 90 Carrier Hotel Acquisition”). A portion of the building was leased to the Company and was being used by the Company as its Frankfurt 5 IBX data center. The remainder of the building was leased by other parties, who became the Company’s tenants upon closing. The Frankfurt Kleyer 90 Carrier Hotel constitutes a business under the accounting standard for business combinations and as a result, the Frankfurt Kleyer 90 Carrier Hotel Acquisition was accounted for as a business acquisition using the acquisition method of accounting. The Company included Frankfurt Kleyer 90 Carrier Hotel’s results of operations from October 1, 2013 and the estimated fair value of assets acquired and liabilities assumed in its consolidated balance sheets beginning October 1, 2013. The Company incurred acquisition costs of approximately $4,794,000 for the year ended December 31, 2013 related to the Frankfurt Kleyer 90 Carrier Hotel Acquisition. Purchase Price Allocation Under the acquisition method of accounting, the total purchase price was allocated to Frankfurt Kleyer 90 Carrier Hotel’s net tangible and intangible assets based upon their fair value as of the Frankfurt Kleyer 90 Carrier Hotel acquisition date. Based upon the purchase price and the valuation of Frankfurt Kleyer 90 Carrier Hotel, the purchase price allocation was as follows (in thousands): Property, plant and equipment $ 85,969 Intangible assets 10,011 Total assets acquired 95,980 Mortgage payable (42,906) Intangible - unfavorable leases (2,982) Net assets acquired $ 50,092 The following table presents certain information on the acquired identifiable intangible assets (dollars in thousands): Intangible assets Fair value Estimated useful lives (years) Weighted-average estimated useful lives (years) Customer contracts $ 9,363 0.3 - 8 4.9 Unfavorable leases (2,982) 1 - 6 4.8 Favorable leases 648 1 - 8 7.5 The fair value of customer contracts was estimated by applying an income approach. The fair value was determined by calculating the present value of estimated future operating cash flows generated by existing customer relationships less costs to realize the revenue. The Company applied a discount rate of approximately 9.0% , which reflects the nature of the assets as it relates to the estimated future operating cash flows. Other significant assumptions used to estimate the fair value of the customer contracts include projected revenue growth, customer attrition rates, sales and marketing expenses and operating margins. The fair value of leases was estimated using the market approach. The fair value measurements were based on significant inputs that are not observable in the market and thus represent Level 3 measurements as defined in the accounting standard for fair value measurements. The Company determined the fair value of the mortgage payable assumed in the Frankfurt Kleyer 90 Hotel Acquisition by estimating Frankfurt Kleyer 90 Hotel’s debt rating and reviewing market data with a similar debt rating and other characteristics of the debt, including the maturity date and security type. For the year ended December 31, 2013, revenues and net income recorded from Frankfurt Kleyer 90 Hotel were not material and were included in the Company’s consolidated statements of operations. ALOG Acquisition On April 25, 2011 (the “ALOG Acquisition Date”), the Company and RW Brasil Fundo de Investimento em Participações, a subsidiary of Riverwood Capital L.P. (“Riverwood”), completed the acquisition of approximately 90% of the outstanding capital stock of ALOG Data Centers do Brasil S.A. (“ALOG”). As a result, the Company acquired an approximate 53% controlling equity interest in ALOG (the “ALOG Acquisition”). In July 2014, the Company and Riverwood entered into a purchase and sale agreement in which the Company acquired Riverwood’s interest in ALOG and the approximate 10% of ALOG owned by ALOG management, which resulted in the Company owning 100% of ALOG. The net purchase price of $225,629,000 consisted of: (i) $216,484,000 of cash paid to Riverwood and ALOG management to acquire their interests in ALOG, (ii) $8,459,000 of cash paid for the common shares of ALOG related to vested and outstanding stock options to purchase common shares of ALOG that were held by ALOG employees and (iii) $686,000 for the assumption of Riverwood’s portion of the contingent consideration in connection with the acquisition of ALOG in 2011. The cash portion of the purchase price was paid on the closing date in July 2014. The net increase in the redemption value of the redeemable non-controlling interests of $90,966,000 and transaction costs of $1,333,000 were recorded in additional paid-in capital during the year ended December 31, 2014.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table sets forth the computation of basic and diluted EPS for the years ended December 31 (in thousands, except per share amounts): 2015 2014 2013 Net income (loss) $ 187,774 $ (260,726 ) $ 96,123 Net (income) loss attributable to redeemable non-controlling interests — 1,179 (1,438 ) Net income (loss) attributable to Equinix, basic and diluted $ 187,774 $ (259,547 ) $ 94,685 Weighted-average shares used to calculate basic EPS 57,790 52,359 49,438 Effect of dilutive securities: Employee equity awards 693 — 678 Total dilutive potential shares 693 — 678 Weighted-average shares used to calculate diluted EPS 58,483 52,359 50,116 EPS attributable to Equinix: Basic EPS $ 3.25 $ (4.96 ) $ 1.92 Diluted EPS $ 3.21 $ (4.96 ) $ 1.89 The following table sets forth potential shares of common stock that are not included in the diluted EPS calculation above because to do so would be anti-dilutive for the years ended December 31 (in thousands): 2015 2014 2013 Shares related to the potential conversion of 3.00% convertible subordinated notes — 861 3,613 Shares related to the potential conversion of 4.75% convertible subordinated notes 1,977 2,824 4,432 Common stock related to employee equity awards 88 1,820 254 2,065 5,505 8,299

Assets Held for Sale

Assets Held for Sale	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Assets Held for Sale	Assets Held for Sale In order to obtain the approval of the European Commission for the acquisition of TelecityGroup, the Company and TelecityGroup have agreed to divest certain data centers, including the Company’s London 2 data center in London, UK ("LD2"). There is no definitive agreement to date with any buyer or buyers and any such agreement will be subject to the approval of the European Commission. The assets and liabilities of this data center, which are included within the EMEA operating segment, were classified as held for sale in the fourth quarter of 2015 and, therefore, the corresponding depreciation and amortization expense was ceased at that time. This anticipated divestiture is not presented as discontinued operations in our consolidated statements of operations, because it does not represent a strategic shift in our business, as the Company will continue operating similar businesses after the acquisition. During the fourth quarter of 2015, the Company entered into an agreement to sell a parcel of land in San Jose, California, whose sale was completed in February 2016. The consolidated financial statements reflect the LD2 data center assets and liabilities and San Jose land parcel as held for sale in the accompanying consolidated balance sheet as of December 31, 2015. During the years ended December 31, 2015 and 2014, the Company recognized revenue of $17,579,000 and $21,772,000 , respectively, and net income of $7,166,000 and $9,218,000 , respectively from LD2. When an asset is classified as held for sale, the asset’s book value is evaluated and adjusted to the lower of its carrying amount or fair value less cost to sell. As of December 31, 2015, the Company determined that assets held for sale had not been impaired. The following table summarizes the assets and liabilities of the LD2 data center and San Jose land parcel classified as held for sale in the consolidated balance sheet as of December 31, 2015 (in thousands): Accounts Receivable $ 2,222 Other current assets 408 Property, plant and equipment 23,533 Goodwill 5,000 Intangible assets 784 Other assets 1,310 Total assets held for sale $ 33,257 Accounts payable and accrued expenses $ (654 ) Accrued property, plant and equipment (816 ) Other current liabilities (435 ) Other liabilities (1,630 ) Total liabilities held for sale $ (3,535 )

Balance Sheet Components

Balance Sheet Components	12 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Balance Sheet Components	Balance Sheet Components Cash, Cash Equivalents and Short-Term and Long-Term Investments Cash, cash equivalents and short-term and long-term investments consisted of the following as of December 31 (in thousands): 2015 2014 Cash and cash equivalents: Cash (1) $ 1,139,554 $ 207,953 Cash equivalents: Money market funds 1,089,284 402,964 Total cash and cash equivalents 2,228,838 610,917 Marketable securities: U.S. government securities — 336,440 U.S. government agency securities — 192,955 Certificates of deposit 14,106 439 Publicly traded equity securities 3,353 — Total marketable securities 17,459 529,834 Total cash, cash equivalents and short-term and long-term investments $ 2,246,297 $ 1,140,751 _________________________ (1) Excludes restricted cash. As of December 31, 2015 and 2014, cash and cash equivalents included investments which were readily convertible to cash and had original maturity dates of 90 days or less. The maturities of debt instruments classified as short-term investments were one year or less as of December 31, 2015 and 2014. The maturities of debt instruments classified as long-term investments were greater than one year and less than three years as of December 31, 2015 and 2014. Through the acquisition of Bit-isle, the Company acquired certain publicly-traded equity securities which were included in long-term investment in the consolidated balance sheet as of December 31, 2015. The following table summarizes the cost and estimated fair value of marketable debt securities based on stated effective maturities as of December 31 (in thousands): 2015 2014 Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 12,875 $ 12,875 $ 529,567 $ 529,395 Due after one year through three years 1,231 1,231 439 439 Total $ 14,106 $ 14,106 $ 530,006 $ 529,834 As of December 31, 2015, the Company’s net unrealized gains (losses) on its available-for-sale securities were comprised of the following (in thousands): Amortized Cost Gross unrealized gains Gross unrealized losses Fair Value Certificates of deposit $ 14,106 $ — $ — $ 14,106 Publicly traded equity securities 3,561 — (208 ) 3,353 Total $ 17,667 $ — $ (208 ) $ 17,459 None of the securities held at December 31, 2015 were other-than-temporarily impaired. While certain marketable securities carry unrealized losses, the Company expects that it will receive both principal and interest according to the stated terms of each of the securities and that the increase or decline in market value is primarily due to changes in the interest rate environment from the time the securities were purchased as compared to interest rates at December 31, 2015. As of December 31, 2014, the Company’s net unrealized gains (losses) on its available-for-sale securities were comprised of the following (in thousands): Amortized Cost Gross unrealized gains Gross unrealized losses Fair Value U.S. government securities $ 336,561 $ 45 $ (166 ) $ 336,440 U.S. government agency securities 193,006 30 (81 ) 192,955 Certificates of deposit 439 — — 439 Total $ 530,006 $ 75 $ (247 ) $ 529,834 None of the securities held at December 31, 2014 were other-than-temporarily impaired. Accounts Receivable Accounts receivable, net, consisted of the following as of December 31 (in thousands): 2015 2014 Accounts receivable $ 302,316 $ 272,036 Allowance for doubtful accounts (10,352 ) (9,466 ) $ 291,964 $ 262,570 Trade accounts receivable are recorded at the invoiced amount and generally do not bear interest. The following table summarizes the activity of the Company’s allowance for doubtful accounts (in thousands): Balance as of December 31, 2012 $ 3,716 Provision for allowance for doubtful accounts 5,819 Net write-offs (2,833 ) Impact of foreign currency exchange (62 ) Balance as of December 31, 2013 6,640 Provision for allowance for doubtful accounts 7,093 Net write-offs (3,825 ) Impact of foreign currency exchange (442 ) Balance as of December 31, 2014 9,466 Provision for allowance for doubtful accounts 5,037 Net write-offs (3,438 ) Impact of foreign currency exchange (713 ) Balance as of December 31, 2015 $ 10,352 Other Current Assets Other current assets consisted of the following as of December 31 (in thousands): 2015 2014 Prepaid expenses $ 48,322 $ 29,501 Taxes receivable 33,979 17,071 Deferred tax assets, net — 6,579 Other receivables 1,925 2,324 Derivative instruments 60,165 17,732 Other current assets 68,538 11,797 $ 212,929 $ 85,004 Property, Plant and Equipment Property, plant and equipment consisted of the following as of December 31 (in thousands): 2015 2014 Core systems $ 3,820,772 $ 3,252,569 Buildings 2,383,387 2,074,382 Leasehold improvements 1,204,900 1,053,451 Construction in progress 351,697 460,259 Personal Property 450,914 387,909 Land 183,946 160,035 8,395,616 7,388,605 Less accumulated depreciation (2,789,180 ) (2,390,335 ) $ 5,606,436 $ 4,998,270 Core systems, buildings, leasehold improvements, personal property and construction in progress recorded under capital leases aggregated $725,337,000 and $585,288,000 as of December 31, 2015 and 2014, respectively. Amortization of the assets recorded under capital leases is included in depreciation expense and accumulated depreciation on such assets totaled $117,338,000 and $83,291,000 as of December 31, 2015 and 2014, respectively. Goodwill and Other Intangibles Goodwill and other intangible assets, net, consisted of the following as of December 31 (in thousands): 2015 2014 Goodwill: Americas $ 460,203 $ 463,902 EMEA 374,070 404,093 Asia-Pacific 228,927 134,134 $ 1,063,200 $ 1,002,129 Intangible assets: Intangible assets - customer contracts $ 311,581 $ 220,674 Intangible assets - favorable leases 22,783 24,300 Intangible assets - licenses 9,697 9,697 Intangible assets - others 13,491 8,132 357,552 262,803 Accumulated amortization - customer contracts (117,167 ) (102,074 ) Accumulated amortization - favorable leases (8,909 ) (7,656 ) Accumulated amortization - licenses (1,942 ) (1,294 ) Accumulated amortization - others (4,969 ) (4,252 ) (132,987 ) (115,276 ) $ 224,565 $ 147,527 Changes in the carrying amount of goodwill by geographic regions are as follows (in thousands): Americas EMEA Asia-Pacific Total Balance as of December 31, 2013 $ 471,845 $ 435,041 $ 135,267 $ 1,042,153 Impact of foreign currency exchange (7,943 ) (30,948 ) (1,133 ) (40,024 ) Balance as of December 31, 2014 463,902 404,093 134,134 1,002,129 Purchase accounting adjustments 17,192 — 95,437 112,629 Asset held for sale adjustments — (5,000 ) — (5,000 ) Impact of foreign currency exchange (20,891 ) (25,023 ) (644 ) (46,558 ) Balance as of December 31, 2015 $ 460,203 $ 374,070 $ 228,927 $ 1,063,200 Changes in the net book value of intangible assets by geographic regions are as follows (in thousands): Americas EMEA Asia-Pacific Total Balance as of December 31, 2012 $ 89,467 $ 84,186 $ 27,909 $ 201,562 Frankfurt Kleyer 90 Carrier Hotel acquisition (see Note 2) — 10,010 — 10,010 New York IBX Center purchase 1,100 — — 1,100 Adjustments — (2,070 ) — (2,070 ) Amortization of intangibles (12,604 ) (11,613 ) (2,810 ) (27,027 ) Impact of foreign currency exchange (1,739 ) 2,196 150 607 Balance as of December 31, 2013 76,224 82,709 25,249 184,182 Amortization of intangibles (12,257 ) (12,795 ) (2,704 ) (27,756 ) Impact of foreign currency exchange (1,013 ) (7,729 ) (157 ) (8,899 ) Balance as of December 31, 2014 62,954 62,185 22,388 147,527 Nimbo acquisition 1,089 — — 1,089 Bit-Isle acquisition — — 111,374 111,374 Asset held for sale adjustments — (784 ) — (784 ) Write-off of intangible asset — (357 ) — (357 ) Amortization of intangibles (11,432 ) (11,675 ) (4,339 ) (27,446 ) Impact of foreign currency exchange (1,968 ) (5,014 ) 144 (6,838 ) Balance as of December 31, 2015 $ 50,643 $ 44,355 $ 129,567 $ 224,565 The Company’s goodwill and intangible assets in EMEA, denominated in the United Arab Emirates dirham, British pounds and Euros, goodwill and intangible assets in Asia-Pacific, denominated in Singapore dollars, Hong Kong dollars, Japanese yen and Chinese yuan and certain goodwill and intangibles in Americas, denominated in Canadian dollars and Brazilian reals, are subject to foreign currency fluctuations. The Company’s foreign currency translation gains and losses, including goodwill and intangibles, are a component of other comprehensive income and loss. Estimated future amortization expense related to these intangibles is as follows (in thousands): Year ending: 2016 $ 35,298 2017 33,644 2018 29,690 2019 24,978 2020 19,217 Thereafter 81,738 Total $ 224,565 Other Assets Other assets consisted of the following as of December 31 (in thousands): 2015 2014 Deferred tax assets, net $ 61,152 $ 45,134 Prepaid expenses, non-current 54,372 37,006 Debt issuance costs, net 19,709 9,022 Deposits 33,132 26,068 Derivative instruments 8,735 5,007 Other assets, non-current 11,358 6,373 $ 188,458 $ 128,610 Accounts Payable and Accrued Expenses Accounts payable and accrued expenses consisted of the following as of December 31 (in thousands): 2015 2014 Accounts payable $ 49,892 $ 30,221 Accrued compensation and benefits 131,204 115,184 Accrued interest 67,077 29,116 Accrued taxes (1) 37,004 41,295 Accrued utilities and security 31,789 31,531 Accrued professional fees 18,380 8,148 Accrued repairs and maintenance 3,618 4,086 Accrued other 61,984 26,215 $ 400,948 $ 285,796 __________________________ (1) Includes income taxes payable of $14,527,000 and $21,941,000 , respectively, as of December 31, 2015 and 2014. Other Current Liabilities Other current liabilities consisted of the following as of December 31 (in thousands): 2015 2014 Deferred tax liabilities, net $ — $ 83,264 Deferred installation revenue 56,055 48,707 Customer deposits 23,676 13,492 Derivative instruments 79,256 810 Deferred recurring revenue 12,515 6,879 Deferred rent 3,572 2,675 Dividends payable 13,674 4,559 Asset retirement obligations — 945 Other current liabilities 3,538 1,333 $ 192,286 $ 162,664 Other Liabilities Other liabilities consisted of the following as of December 31 (in thousands): 2015 2014 Asset retirement obligations, non-current $ 78,482 $ 63,913 Deferred tax liabilities, net 100,624 69,212 Deferred installation revenue, non-current 86,660 76,744 Deferred rent, non-current 68,787 52,968 Accrued taxes, non-current 26,763 24,726 Dividends payable, non-current 13,394 4,972 Customer deposits, non-current 4,701 4,618 Deferred recurring revenue, non-current 3,645 445 Derivative instruments 669 — Other liabilities 6,688 7,366 $ 390,413 $ 304,964 The following table summarizes the activity of the Company’s asset retirement obligation liability (in thousands): Asset retirement obligations as of December 31, 2012 $ 63,150 Additions 8,713 Adjustments (1) (14,874 ) Accretion expense 2,932 Impact of foreign currency exchange (373 ) Asset retirement obligations as of December 31, 2013 59,548 Additions 5,774 Adjustments (1) (871 ) Accretion expense 2,438 Impact of foreign currency exchange (2,031 ) Asset retirement obligations as of December 31, 2014 64,858 Additions 17,337 Adjustments (1) (4,676 ) Accretion expense 3,349 Impact of foreign currency exchange (2,386 ) Asset retirement obligations as of December 31, 2015 $ 78,482 __________________________ (1) Reversal of asset retirement obligations associated with leases that were amended.

Derivatives and Hedging Instrum

Derivatives and Hedging Instruments	12 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Instruments	Derivatives and Hedging Instruments Derivatives Designated as Hedging Instruments Net Investment Hedges. The Company is exposed to the impact of foreign exchange rate fluctuations in the investments in its wholly-owned foreign subsidiaries that are denominated in currencies other than the U.S. dollar. In order to mitigate the volatility in foreign exchange rates, the Company entered into a foreign currency term loan in April 2015, as discussed in Note 9, and designated 100% of the term loan to hedge its net investment in its wholly-owned foreign subsidiaries that are denominated in the same currencies as the term loan. All changes in the fair value of the hedging instrument designated as a net investment hedge, except the ineffective portion, are recorded as a component of other comprehensive income (loss) in the consolidated balance sheet. Effective December 15, 2015, the Company terminated hedging its net investment in subsidiaries that are denominated in Swiss Francs. As of December 31, 2015, the Company recorded foreign exchange gain of $4,484,000 in other comprehensive income for the year ended December 31, 2015. The Company recorded no ineffectiveness from its net investment hedges for the year ended December 31, 2015. Cash Flow Hedges. During the fourth quarter of 2013, the Company initiated a program to hedge its exposure to foreign currency exchange rate fluctuations for forecasted revenues and expenses in its EMEA region in order to help manage the Company’s exposure to foreign currency exchange rate fluctuations between the U.S. Dollar and the British Pound, Euro and Swiss Franc. The foreign currency forward and option contracts that the Company uses to hedge this exposure are designated as cash flow hedges under the accounting standard for derivatives and hedging. Effective January 1, 2015, the Company entered into intercompany hedging instruments (“intercompany derivatives”) with a wholly-owned subsidiary of the Company and simultaneously entered into derivative contracts with unrelated parties to hedge certain forecasted revenues and expenses denominated in currencies other than the U.S. dollar. The following disclosure is prepared on a consolidated basis. Assets and liabilities resulting from intercompany derivatives have been eliminated in consolidation. As of December 31, 2015 , the Company's cash flow hedge instruments had maturity dates ranging from January 2016 to December 2017 as follows (in thousands): Notional Amount Fair Value (1) Accumulated other comprehensive income (loss) (2)(3) Derivative assets $ 367,330 $ 16,027 $ 34,578 Derivative liabilities 47,447 (813 ) (19,709 ) $ 414,777 $ 15,214 $ 14,869 __________________________ (1) All derivative assets related to cash flow hedges are included in the consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) Included in the consolidated balance sheets within accumulated other comprehensive income (loss). (3) The Company recorded a net gain of $12,940 within accumulated other comprehensive income (loss) relating to cash flow hedges that will be reclassified to revenue and expenses as they mature over the next 12 months. As of December 31, 2014, the Company's cash flow hedge instruments had maturity dates ranging from January 2015 to January 2016 as follows (in thousands): Notional Amount Fair Value (1) Accumulated other comprehensive income (loss) (2) Derivative assets $ 281,055 $ 8,404 $ 8,480 Derivative liabilities — — — $ 281,055 $ 8,404 $ 8,480 __________________________ (1) All derivative assets related to cash flow hedges are included in the consolidated balance sheets within other current assets. (2) Included in the consolidated balance sheets within accumulated other comprehensive income (loss). During the years ended December 31, 2015 and 2014, the ineffective and excluded portions of cash flow hedges recognized in other income (expense) were not significant. During the year ended December 31, 2015, the amount of net gains reclassified from accumulated other comprehensive income (loss) to revenue were $27,973,000 and the amount of net losses reclassified from accumulated other comprehensive income (loss) to operating expenses were $6,256,000 . During the year ended December 31, 2014, the amount of net gains reclassified from accumulated other comprehensive income (loss) to revenue were $4,332,000 and the amount of net losses reclassified from accumulated other comprehensive income (loss) to operating expenses were not significant. During the year ended December 31, 2013, the amount of gains (losses) reclassified from accumulated other comprehensive income (loss) to revenue and operating expenses were not significant. Derivatives Not Designated as Hedging Instruments Embedded Derivatives . The Company is deemed to have foreign currency forward contracts embedded in certain of the Company’s customer agreements that are priced in currencies different from the functional or local currencies of the parties involved. These embedded derivatives are separated from their host contracts and carried on the Company’s balance sheet at their fair value. The majority of these embedded derivatives arise as a result of the Company’s foreign subsidiaries pricing their customer contracts in the U.S. dollar. Gains and losses on these embedded derivatives are included within revenues in the Company’s consolidated statements of operations. During the year ended December 31, 2015, the gain or loss associated with these embedded derivatives was insignificant. During the years ended December 31, 2014 and 2013, the Company recognized a net gain of $3,807,000 and $4,836,000 associated with these embedded derivatives, respectively. Economic Hedges of Embedded Derivatives. The Company uses foreign currency forward contracts to help manage the foreign exchange risk associated with the Company’s customer agreements that are priced in currencies different from the functional or local currencies of the parties involved (“economic hedges of embedded derivatives”). Foreign currency forward contracts represent agreements to exchange the currency of one country for the currency of another country at an agreed-upon price on an agreed-upon settlement date. Gains and losses on these contracts are included in revenues along with gains and losses of the related embedded derivatives. The Company entered into various economic hedges of embedded derivatives during the years ended December 31, 2015, 2014 and 2013 and recognized a net loss of $2,287,000 , $2,602,000 and $4,497,000 , respectively. Foreign Currency Forward and Option Contracts. The Company also uses foreign currency forward and option contracts to manage the foreign exchange risk associated with certain foreign currency-denominated assets and liabilities. As a result of foreign currency fluctuations, the U.S. dollar equivalent values of its foreign currency-denominated assets and liabilities change. Gains and losses on these contracts are included in other income (expense), net, along with the foreign currency gains and losses of the related foreign currency-denominated assets and liabilities associated with these foreign currency forward contracts. The Company entered into various foreign currency forward and option contracts during the years ended December 31, 2015, 2014 and 2013. The Company recognized a net loss of $24,319,000 during the year ended December 31, 2015 and a net gain of $12,657,000 during the year ended December 31, 2014. Gains (losses) from these foreign currency forward contracts were not significant during the year ended December 31, 2013. Offsetting Derivative Assets and Liabilities The following table presents the fair value of derivative instruments recognized in the Company’s consolidated balance sheets as of December 31, 2015 (in thousands): Gross Amounts Gross amounts offset in the balance sheet Net balance sheet amounts (1) Gross amounts not offset in the balance sheet (2) Net Assets: Designated as hedging instruments: Foreign currency forward and option contracts $ 16,027 $ — $ 16,027 $ (813 ) $ 15,214 Not designated as hedging instruments: Embedded derivatives 8,926 — 8,926 — 8,926 Economic hedges of embedded derivatives 744 — 744 — 744 Foreign currency forward contracts 43,203 — 43,203 (34,577 ) 8,626 52,873 — 52,873 (34,577 ) 18,296 Additional netting benefit — — — (9,512 ) (9,512 ) $ 68,900 $ — $ 68,900 $ (44,902 ) $ 23,998 Liabilities: Designated as hedging instruments: Foreign currency forward and option contracts $ 813 $ — $ 813 $ (813 ) $ — Not designated as hedging instruments: Embedded derivatives 1,772 — 1,772 — 1,772 Economic hedges of embedded derivatives 417 — 417 — 417 Foreign currency forward contracts 76,923 — 76,923 (34,577 ) 42,346 79,112 — 79,112 (34,577 ) 44,535 Additional netting benefit — — — (9,512 ) (9,512 ) $ 79,925 $ — $ 79,925 $ (44,902 ) $ 35,023 _______________________ (1) As presented in the Company’s consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) The Company enters into master netting agreements with its counterparties for transactions other than embedded derivatives to mitigate credit risk exposure to any single counterparty. Master netting agreements allow for individual derivative contracts with a single counterparty to offset in the event of default. The following table presents the fair value of derivative instruments recognized in the Company’s consolidated balance sheets as of December 31, 2014 (in thousands): Gross Amounts Gross amounts offset in the balance sheet Net amounts (1) Gross amounts not offset in the balance sheet (2) Net Assets: Designated as hedging instruments: Foreign currency forward contracts $ 8,404 $ — $ 8,404 $ — $ 8,404 Not designated as hedging instruments: Embedded derivatives 9,182 — 9,182 — 9,182 Foreign currency forward and option contracts 5,153 — 5,153 (138 ) 5,015 14,335 — 14,335 (138 ) 14,197 Additional netting benefit — — — (508 ) (508 ) $ 22,739 $ — $ 22,739 $ (646 ) $ 22,093 Liabilities: Designated as hedging instruments: Foreign currency forward contracts $ — $ — $ — $ — $ — Not designated as hedging instruments: Embedded derivatives 4 — 4 — 4 Economic hedges of embedded derivatives 390 — 390 — 390 Foreign currency forward and option contracts 416 — 416 (138 ) 278 810 — 810 (138 ) 672 Additional netting benefit — — — (508 ) (508 ) $ 810 $ — $ 810 $ (646 ) $ 164 _________________________ (1) As presented in the Company’s consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) The Company enters into master netting agreements with its counterparties for transactions other than embedded derivatives to mitigate credit risk exposure to any single counterparty. Master netting agreements allow for individual derivative contracts with a single counterparty to offset in the event of default.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2015 were as follows (in thousands): Fair value at December 31, Fair value measurement using 2015 Level 1 Level 2 Assets: Cash $ 1,139,554 $ 1,139,554 $ — Money market and deposit accounts 1,089,284 1,089,284 — Publicly traded equity securities 3,353 3,353 — Certificates of deposit 14,106 — 14,106 Derivative instruments (1) 68,900 — 68,900 $ 2,315,197 $ 2,232,191 $ 83,006 Liabilities: Derivative instruments (1) $ 79,925 $ — $ 79,925 _________________________ (1) Includes both foreign currency embedded derivatives and foreign currency forward and option contracts. Amounts are included within other current assets, other assets, other current liabilities and other liabilities in the Company’s accompanying consolidated balance sheet. The Company’s financial assets and liabilities measured at fair value on a recurring basis at December 31, 2014 were as follows (in thousands): Fair value at December 31, Fair value measurement using 2014 Level 1 Level 2 Assets: Cash $ 207,953 $ 207,953 $ — Money market and deposit accounts 402,964 402,964 — U.S. government securities 336,440 336,440 — U.S. government agency securities 192,955 — 192,955 Certificates of deposit 439 — 439 Derivative instruments (1) 22,739 — 22,739 $ 1,163,490 $ 947,357 $ 216,133 Liabilities: Derivative instruments (1) $ 810 $ — $ 810 _________________________ (1) Includes embedded derivatives, foreign currency embedded derivatives and foreign currency forward contracts. Amounts are included within other current assets, other current liabilities and other liabilities in the Company’s accompanying consolidated balance sheet. The Company did not have any Level 3 financial assets or financial liabilities during the years ended December 31, 2015 and 2014 . Valuation Methods Fair value estimates are made as of a specific point in time based on methods using the market approach valuation method which uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities or other valuation techniques. These techniques involve uncertainties and are affected by the assumptions used and the judgments made regarding risk characteristics of various financial instruments, discount rates, estimates of future cash flows, future expected loss experience and other factors. Cash, Cash Equivalents and Investments. The fair value of the Company's investments in money market funds approximates their face value. Such instruments are included in cash equivalents. The Company’s U.S. government securities, money market funds and publicly traded equity securities are classified within Level 1 of the fair value hierarchy because they are valued using quoted prices for identical instruments in active markets. The fair value of the Company's other investments approximate their face value, including certificates of deposit and available-for-sale debt investments related to the Company's investments in the securities of other public companies, governmental units and other agencies. The fair value of these investments is priced based on the quoted market price for similar instruments or nonbinding market prices that are corroborated by observable market data. Such instruments are classified within Level 2 of the fair value hierarchy. The Company determines the fair values of its Level 2 investments by using inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, custody bank, third-party pricing vendors, or other sources. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs. The Company is responsible for its consolidated financial statements and underlying estimates. The Company uses the specific identification method in computing realized gains and losses. Realized gains and losses on the investments are included within other income (expense) in the Company’s consolidated statements of operations. Short-term and long-term investments are classified as available-for-sale and are carried at fair value with unrealized gains and losses reported in stockholders’ equity as a component of other comprehensive income or loss, net of any related tax effect. The Company reviews its investment portfolio quarterly to determine if any securities may be other-than-temporarily impaired due to increased credit risk, changes in industry or sector of a certain instrument or ratings downgrades over an extended period of time. Derivative Assets and Liabilities . For derivatives, the Company uses forward contract and option models employing market observable inputs, such as spot currency rates and forward points with adjustments made to these values utilizing published credit default swap rates of its foreign exchange trading counterparties and other comparable companies. The Company has determined that the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, therefore the derivatives are categorized as Level 2. During the years ended December 31, 2015 and 2014 , the Company did not have any nonfinancial assets or liabilities measured at fair value on a recurring basis.

Leases

Leases	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Leases	Leases Capital Lease and Other Financing Obligations The Company’s capital lease and other financing obligations expire at various dates ranging from 2015 to 2053 . The weighted average effective interest rate of the Company’s capital lease and other financing obligations was 8.17% as of December 31, 2015 . The Company’s capital lease and other financing obligations are summarized as follows as of December 31, 2015 (dollars in thousands): Capital lease obligations Other financing obligations Total 2016 $ 74,457 $ 66,175 $ 140,632 2017 73,537 66,116 139,653 2018 74,053 66,928 140,981 2019 74,857 63,990 138,847 2020 74,868 61,719 136,587 Thereafter 827,789 518,552 1,346,341 Total minimum lease payments 1,199,561 843,480 2,043,041 Plus amount representing residual property value — 467,616 467,616 Less estimated building costs — (247 ) (247 ) Less amount representing interest (557,433 ) (625,717 ) (1,183,150 ) Present value of net minimum lease payments 642,128 685,132 1,327,260 Less current portion (23,435 ) (16,686 ) (40,121 ) $ 618,693 $ 668,446 $ 1,287,139 Atlanta 1 Capital Lease In May 2015, the Company entered into a lease amendment to extend the lease term of the Company’s Atlanta 1 IBX (the “AT1 Lease”). The lease was originally accounted for as an operating lease. Pursuant to the accounting standard for leases, the Company reassessed the lease classification of the AT1 Lease as a result of the lease amendment and determined that upon the amendment the lease should be accounted for as a capital lease. The Company recorded a capital lease asset and liability totaling approximately $21,274,000 during the three months ended June 30, 2015. The lease term was extended to September 2035. Atlanta 2 Capital Lease In January 2015, the Company entered into a lease amendment to extend the lease term of the Company’s Atlanta 2 IBX (the “AT2 Lease”). The lease was originally accounted for as an operating lease. Pursuant to the accounting standard for leases, the Company reassessed the lease classification of the AT2 Lease as a result of the lease amendment and determined that upon the amendment the lease should be accounted for as a capital lease. The Company recorded a capital lease asset totaling approximately $25,960,000 and a capital lease liability totaling approximately $26,230,000 during the three months ended March 31, 2015. The lease term, including a renewal option, was extended to December 2024. Operating Leases The Company also leases its IBX data centers and certain equipment under noncancelable operating lease agreements. The majority of the Company’s operating leases for its land and IBX data centers expire at various dates through 2053 with renewal options available to the Company. The lease agreements typically provide for base rental rates that increase at defined intervals during the term of the lease. In addition, the Company has negotiated some rent expense abatement periods for certain leases to better match the phased build out of its IBX data centers. The Company accounts for such abatements and increasing base rentals using the straight-line method over the life of the lease. The difference between the straight-line expense and the cash payment is recorded as deferred rent (see Note 5, “Other Current Liabilities” and “Other Liabilities”). Minimum future operating lease payments as of December 31, 2015 are summarized as follows (in thousands): Year ending: 2016 $ 115,091 2017 113,624 2018 108,810 2019 100,462 2020 89,227 Thereafter 632,677 Total $ 1,159,891 Total rent expense was approximately $199,975,000 , $105,391,000 and $112,704,000 for the years ended December 31, 2015 , 2014 and 2013 , respectively.

Debt Facilities

Debt Facilities	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt Facilities	Debt Facilities Mortgage and Loans Payable The Company’s mortgage and loans payable consisted of the following as of December 31 (in thousands): 2015 2014 Term loan A $ 456,740 $ 500,000 Bridge term loan 386,547 — Revolving credit facility borrowings 325,622 — Brazil financings 27,113 56,863 Mortgage payable and other loans payable 47,677 36,608 1,243,699 593,471 Less the amount representing debt discount and debt issuance cost (2,681 ) (3,477 ) Add the amount representing mortgage premium 1,987 2,281 1,243,005 592,275 Less current portion (770,236 ) (59,466 ) $ 472,769 $ 532,809 Senior Credit Facility On December 17, 2014, the Company entered into a credit agreement with a group of lenders for a $1,500,000,000 credit facility (“Senior Credit Facility”), comprised of a $1,000,000,000 multicurrency revolving credit facility (“Revolving Credit Facility”) and a $500,000,000 multicurrency term loan facility (“Term Loan A Facility”). The Senior Credit Facility contains two financial covenants with which the Company must comply on a quarterly basis, including a maximum consolidated net lease adjusted leverage ratio and a minimum consolidated fixed charge coverage ratio. The Senior Credit Facility is guaranteed by certain of the Company’s domestic subsidiaries and is secured by its domestic accounts receivable as well as pledges of the equity interest of certain of the Company’s direct and indirect subsidiaries. The Revolving Credit Facility and the Term Loan A Facility both have a five -year term, maturing on December 17, 2019 , subject to the satisfaction of certain conditions with respect to the Company’s outstanding convertible subordinated notes. The Company may use the remaining Senior Credit Facility for working capital, capital expenditures and other corporate purposes. The Term Loan A Facility bears interest at a rate based on LIBOR or, at the Company’s option, the base rate, which is defined as the highest of (a) the Federal Funds Rate plus 1/2 of 1%, (b) the Bank of America prime rate and (c) one-month LIBOR plus, in either case, a margin that varies as a function of the Company’s consolidated net lease adjusted leverage ratio that ranges between 1.25% and 1.75% per annum if the Company elects to use the LIBOR index and in the range of 0.25% to 0.75% per annum if the Company elects to use the base rate index. In December 2014 , the Company utilized $110,740,000 of the Term Loan A Facility to repay the remaining principal of the U.S. term loan as well as fees and interest. The Revolving Credit Facility allows the Company to borrow, repay and reborrow over the term. The Revolving Credit Facility provides a sublimit for the issuance of letters of credit of up to $150,000,000 at any one time. Borrowings under the Revolving Credit Facility bear interest at a rate based on LIBOR or, at the Company’s option, the base rate, as defined above, plus, in either case, a margin that varies as a function of its consolidated net lease adjusted leverage ratio that ranges between 1.00% and 1.40% per annum if the Company elects to use the LIBOR index and in the range of 0.25% to 0.75% per annum if the Company elects to use the base rate index . The Company is required to pay a quarterly letter of credit fee on the face amount of each letter of credit, which fee is based on the same margin that applies from time to time to LIBOR-indexed borrowings under the revolving credit line . The Company is also required to pay a quarterly facility fee ranging from 0.25% to 0.35% per annum of the revolving credit facility, regardless of the amount utilized, which fee also varies as a function of our consolidated net lease adjusted leverage ratio. In December 2014, the outstanding letters of credit issued under the U.S. revolving credit line (see below) were assumed under the Revolving Credit Facility and the U.S. revolving credit line was terminated. As of December 31, 2014 , the Company had $500,000,000 outstanding under the Term Loan A Facility. Borrowings under the Term Loan A Facility were denominated in U.S dollars as of December 31, 2014 . The Company was required to repay the U.S. dollar denominated borrowings under the term loan facility in quarterly installments in the amount of $10,000,000 per quarter, commencing on March 31, 2015, with a balloon payment of $300,000,000 at the end of the term. First Amendment On April 30, 2015, the Company, as borrower, and certain subsidiaries as guarantors entered into the first amendment (the “First Amendment”) to the Senior Credit Facility. The First Amendment provided for the conversion of the outstanding U.S. dollar-denominated borrowings under the Term Loan A Facility into an approximately equivalent amount denominated in four foreign currencies. In connection with the execution of the First Amendment, on April 30, 2015 the Company repaid the U.S. dollar-denominated $490,000,000 remaining principal balance of the Term Loan A Facility and immediately reborrowed under the Term Loan A Facility in the aggregate principal amounts of CHF 47,780,000 , €184,945,000 , £92,586,000 and ¥11,924,000,000 , or approximately $490,000,000 in U.S. dollars at exchange rates in effect on April 30, 2015. The Company accounted for this transaction as a debt modification. Fees paid to third parties were expensed. The Company is required to repay the foreign-currency denominated borrowings under the Term Loan A Facility in equal quarterly installments on the last business day of each March, June, September and December, commencing on June 30, 2015, equal to the amount of 2.00% of the result of the respective Term Loan A Facility on April 30, 2015 divided by 0.98 . The remaining principal amount will be paid on the maturity date of the Term Loan A Facility. Second Amendment On December 8, 2015, the Company, as borrower, and certain subsidiaries as guarantors entered into the second amendment (the “Second Amendment”) to the Senior Credit Facility. Pursuant to the Second Amendment, the Revolving Credit Facility was increased by $500,000,000 to $1,500,000,000 and the Company received commitments from the lenders for a $250,000,000 seven years term loan (the “USD Term Loan B Commitment”) and for a £300,000,000 , or approximately $442,020,000 in U.S. dollars at the exchange rate in effect on December 31, 2015, seven years term loan (the “Sterling Term Loan B Commitment”, and collectively, the “Term Loan B Commitments”). The Company may borrow the full amount of the Term Loan B Commitments in a single borrowing on or before June 30, 2016. An original issue discount applies to borrowings under the Term Loan B Commitments. The original issue discount for borrowings under the USD Term Loan B Commitment is 0.25% of the principal. The original issue discount for borrowings under the Sterling Term Loan B Commitment is 0.50% of the principal. Funding of the Term Loan B will be net of the applicable original issue discount. Loans made under the Term Loan B Commitments (the “Term Loan B”) must be repaid in equal quarterly installments of 0.25% of the original principal, with the remaining amount outstanding to be repaid in full on the seventh anniversary of the funding date of the Term Loan B. Once repaid, amounts borrowed under the Term Loan B Commitments may not be reborrowed. Term Loan B made under the USD Term Loan B Commitment bear interest at a rate based on LIBOR or , at the Company’s option, the base rate, which is defined as the highest of (a) the Federal Funds Rate plus 1/2 of 1%, (b) the Bank of America prime rate and (c) one-month LIBOR, or 0.75% if LIBOR is less than 0.75%, plus a margin of 3.25% . Term Loan B made under the Sterling Term Loan B Commitment bear interest at a rate based on LIBOR, or 0.75% if LIBOR is less than 0.75% , plus a margin of 3.75% . Outstanding Borrowings As of December 31, 2015, the Company had CHF 44,855,000 , €173,622,000 , £86,918,000 and ¥11,437,306,000 , or approximately $456,740,000 in U.S dollars at exchange rates in effect as of December 31, 2015, outstanding under the Term Loan A Facility with a weighted average effective interest rate of 1.68% per annum. Debt issuance costs related to the Term Loan A, net of amortization, were $1,031,000 as of December 31, 2015. As of December 31, 2015, the Company had no borrowings outstanding under the Term Loan B Commitments. The Company commenced borrowing under the Revolving Credit Facility in late 2015. During 2015, the Company borrowed $245,000,000 , of which $20,000,000 had been repaid as of December 31, 2015 and ¥12,094,000,000 , or approximately $100,622,000 in U.S dollars at the exchange rate in effect on December 31, 2015. As of December 31, 2015, a total of $325,622,000 was outstanding under the Revolving Credit Facility with interest rates ranging from 1.25% to 1.60% . In addition, the Company had 30 irrevocable letters of credit totaling $55,331,000 issued and outstanding under the Revolving Credit Facility as of December 31, 2015. As a result, the amount available to the Company to borrow under the Revolving Credit Facility was $1,119,047,000 as of December 31, 2015. As of December 31, 2015, the Company was in compliance with all covenants of the Senior Credit Facility. Bridge Term Loan In connection with its acquisition of Bit-isle, on September 30, 2015, the Company, acting through its Japanese subsidiaries as borrowers, entered into a term loan agreement (the “Bridge Term Loan Agreement”) with the Bank of Tokyo-Mitsubishi UFJ, Ltd. (“BTMU”). Pursuant to the Bridge Term Loan Agreement, BTMU has committed to provide a senior bridge loan facility (the “Bridge Term Loan”) in the amount of up to ¥47,500,000,000 , or approximately $395,200,000 in U.S dollars at the exchange rate in effect on December 31, 2015. Proceeds from the Bridge Term Loan were used exclusively for the acquisition of Bit-isle, the repayment of Bit-isle’s existing debt and transaction costs incurred in connection with the closing of the Bridge Term Loan and the acquisition of Bit-isle. In October 2015, the Company completed its first draw down under the Bridge Term Loan of ¥27,260,000,000 or approximately $226,803,000 at the exchange rate in effect on December 31, 2015. In December 2015, the Company completed an additional draw down of ¥19,200,000,000 , or approximately $159,744,000 at the exchange rate in effect on December 31, 2015. Total outstanding borrowings under the Bridge Term Loan were ¥46,460,000,000 or $386,547,000 in U.S dollars at the exchange rate in effect as of December 31, 2015. The Bridge Term Loan is due one year after borrowing the first tranche. Borrowings under the Bridge Term Loan bear interest at the Tokyo Interbank Offered Rate for Japanese Yen, plus a margin of 0.4% per annum for the first ten months following the first draw down. Thereafter, the margin increases to 1.75% per annum. U.S. Financing In June 2012, the Company entered into a credit agreement with a group of lenders for a $750,000,000 credit facility (the “U.S. Financing”), comprised of a $200,000,000 term loan facility (the “U.S. Term Loan”) and a $550,000,000 multicurrency revolving credit facility (the “U.S. Revolving Credit Line”). The U.S. Term Loan bore interest at a rate based on LIBOR or, at the option of the Company, the Base Rate (defined as the highest of (a) the Federal Funds Rate plus 1/2 of 1% , (b) the Bank of America prime rate and (c) one-month LIBOR plus 1.00% ) plus, in either case, a margin that varies as a function of the Company’s senior leverage ratio in the range of 1.25% - 2.00% per annum if the Company elects to use the LIBOR index and in the range of 0.25% - 1.00% per annum if the Company elected to use the Base Rate index. In July 2012, the Company fully utilized the U.S. Term Loan and used the funds to prepay the outstanding balance of and terminate a multi-currency credit facility in the Company’s Asia-Pacific region. Borrowings under the U.S. Revolving Credit Line bore interest at a rate based on LIBOR or, at the option of the Company, the Base Rate (defined above) plus, in either case, a margin that varies as a function of the Company’s senior leverage ratio in the range of 0.95% - 1.60% per annum if the Company elected to use the LIBOR index and in the range of 0.00% - 0.60% per annum if the Company elected to use the Base Rate index . The Company was required to pay a quarterly letter of credit fee on the face amount of each letter of credit, which fee was based on the same margin that applies from time to time to LIBOR-indexed borrowings under the U.S. Revolving Credit Line. The Company was also required to pay a quarterly facility fee ranging from 0.30% - 0.40% per annum of the U.S. Revolving Credit Line (regardless of the amount utilized), which fee also varied as a function of the Company’s senior leverage ratio. In June 2012, the outstanding letters of credit issued under an existing revolving credit facility were replaced by the U.S. Revolving Credit Line and the existing revolving credit facility was terminated. In December 2014, the Company paid down the remaining principal of U.S. Term Loan of $110,000,000 and replaced the U.S. Revolving Credit Line with the revolving credit facility (see above). As a result, Company recorded a loss on debt extinguishment of $2,534,000 . Brazil Financings In November 2013, the Company completed a 60,318,000 Brazilian real borrowing agreement, or approximately $25,536,000 (the “2013 Brazil Financing”). The 2013 Brazil Financing has a five -year term with semi-annual principal payments beginning in the third year of its term and semi-annual interest payments during the entire term. The 2013 Brazil Financing bears an interest rate of 2.25% above the local borrowing rate. The 2013 Brazil Financing contains financial covenants, which Brazil must comply with annually, consisting of a leverage ratio and a fixed charge coverage ratio. As of December 31, 2015, the Company was in compliance with all financial covenants under the 2013 Brazil Financing. The 2013 Brazil Financing is not guaranteed by the Company. The 2013 Brazil Financing is not secured by the Company’s assets. The 2013 Brazil Financing has a final maturity date of November 2018. During the three months ended December 31, 2013, the Company fully utilized the 2013 Brazil Financing. As of December 31, 2015, the effective interest rate under the 2013 Brazil Financing was 16.39% per annum . In June 2012, the Company completed a 100,000,000 Brazilian real borrowing agreement, or approximately $48,807,000 (the “2012 Brazil Financing”). The 2012 Brazil Financing has a five -year term with semi-annual principal payments beginning in the third year of its term and quarterly interest payments during the entire term. The 2012 Brazil Financing bears an interest rate of 2.75% above the local borrowing rate. The 2012 Brazil Financing contains financial covenants, which the Company must comply with annually, consisting of a leverage ratio and a fixed charge coverage ratio. As of December 31, 2015, the Company was in compliance with all financial covenants under the 2012Brazil Financing. The 2012 Brazil Financing is not guaranteed by the Company. The 2012 Brazil Financing is not secured by the Company’s assets. The 2012 Brazil Financing has a final maturity date of June 2017. During the three months ended September 30, 2012, the Company fully utilized the 2012 Brazil Financing and used a portion of the funds to prepay and terminate Brazil loans payable outstanding. As of December 31, 2015 , the effective interest rate under the 2012 Brazil Financing was 16.89% per annum. Mortgage Payable In October 2013, as a result of the Frankfurt Kleyer 90 Carrier Hotel Acquisition, the Company assumed a mortgage payable of $42,906,000 (see Note 2) with an effective interest rate of 4.25% . The mortgage payable has monthly principal and interest payments and has an expiration date of August 2022. Convertible Debt The Company’s convertible debt consisted of the following as of December 31 (in thousands): 2015 2014 4.75% Convertible Subordinated Notes $ 150,082 $ 157,885 Less amount representing debt discount and debt issuance cost (3,961 ) (12,656 ) $ 146,121 $ 145,229 3.00% Convertible Subordinated Notes In September 2007, the Company issued $395,986,000 aggregate principal amount of 3.00% Convertible Subordinated Notes due October 15, 2014 (the “3.00% Convertible Subordinated Notes”). Interest is payable semi-annually on April 15 and October 15 of each year and commenced April 15, 2008 . In June 2014, the Company entered into an agreement with a note holder to exchange an aggregate of $217,199,000 of the principal amount of the 3.00% Convertible Subordinated Notes for 1,948,578 shares of the Company’s common stock and $5,387,000 in cash, comprised of accrued interest and a premium. As a result, the Company recognized a loss on debt extinguishment of $4,210,000 during the three months ended June 30, 2014 in its consolidated statement of operations. In the Company’s consolidated statement of cash flows for the year ended December 31, 2014, the premium paid was included within net cash provided by financing activities and the accrued interest paid was included within net cash provided by operating activities. In October 2014, upon maturity the Company settled with the remaining holders of 3.00% Convertible Subordinated Notes. The conversion rate was adjusted to 8.9264 per $1,000 principal amount of 3.00% convertible notes. Approximately $178,741,000 in aggregate principal amount of the 3.00% Convertible Subordinated Notes was converted into 1,595,496 shares of common stock. The remaining 3.00% Convertible Subordinated Notes, plus accrued interest, were settled in cash. 4.75% Convertible Subordinated Notes In June 2009, the Company issued $373,750,000 aggregate principal amount of 4.75% Convertible Subordinated Notes due June 15, 2016 (the “4.75% Convertible Subordinated Notes”). Interest is payable semi-annually on June 15 and December 15 of each year and commenced on December 15, 2009 . The 4.75% Convertible Subordinated Notes are governed by an Indenture dated as of June 12, 2009, between the Company, as issuer, and U.S. Bank National Association, as trustee (the “4.75% Convertible Subordinated Notes Indenture”). The 4.75% Convertible Subordinated Notes Indenture does not contain any financial covenants or any restrictions on the payment of dividends, the incurrence of senior debt or other indebtedness, or the issuance or repurchase of securities by the Company. The 4.75% Convertible Subordinated Notes are unsecured and rank junior in right of payment to the Company’s existing or future senior debt and equal in right of payment to the Company’s existing and future subordinated debt. Upon conversion, holders will receive, at the Company’s election, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock. However, the Company may at any time irrevocably elect for the remaining term of the 4.75% Convertible Subordinated Notes to satisfy its obligation in cash up to 100% of the principal amount of the 4.75% Convertible Subordinated Notes, with any remaining amount to be satisfied, at the Company’s election, in shares of its common stock or a combination of cash and shares of its common stock. The initial conversion rate was 11.8599 shares of common stock per $1,000 principal amount of the 4.75% Convertible Subordinated Notes, subject to adjustment. This represented an initial conversion price of approximately $84.32 per share of common stock. In November 2014, the Company adjusted the conversion rate of the 4.75% Convertible Subordinated Notes from 11.8599 shares of its common stock per $1,000 principal amount of the notes to 12.2736 shares per $1,000 principal amount of the notes, which was effective as of October 24, 2014. The adjustment was the result of the declaration of the 2014 Special Distribution. This represented an adjusted conversion price of approximately $81.48 per share of common stock as of December 31, 2014. During 2015, the Company adjusted the conversion rate as a result of the declaration of each quarterly dividend and the 2015 Special Distribution. As of December 31, 2015, the conversion rate of the 4.75% Convertible Subordinated Notes was 13.0655 shares of the Company’s common stock per $1,000 principal amount of the notes. This represented an adjusted conversion price of $76.54 per share of common stock as of December 31, 2015. Holders of the 4.75% Convertible Subordinated Notes may convert their notes at any time prior to the close of business on the business day immediately preceding the maturity date under the following circumstances: • during any fiscal quarter (and only during that fiscal quarter) ending after December 31, 2009, if the sale price of the Company’s common stock, for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the previous fiscal quarter, is greater than 130% of the adjusted conversion price per share of common stock on such last trading day, which was approximately $104.14 per share after the adjustment from the 2015 special distribution and quarterly dividend (the “Stock Price Condition Conversion Clause”); • subject to certain exceptions, during the five business day period following any 10 consecutive trading day period in which the trading price of the 4.75% Convertible Subordinated Notes for each day of such period was less than 98% of the product of the sale price of the Company’s common stock and the conversion rate (the “4.75% Convertible Subordinated Notes Parity Provision Clause”); • upon the occurrence of specified corporate transactions described in the 4.75% Convertible Subordinated Notes Indenture, such as a consolidation, merger or binding share exchange in which the Company’s common stock would be converted into cash or property other than securities (the “Corporate Action Provision Clause”); or • at any time on or after March 15, 2016 . Upon conversion, if the Company elected to pay a sufficiently large portion of the conversion obligation in cash, additional consideration beyond the gross proceeds received would be required. Holders of the 4.75% Convertible Subordinated Notes were eligible to convert their notes during the year ended December 31, 2015 and are eligible to convert their notes during the three months ending March 31, 2016, since the Stock Price Condition Conversion Clause was met during the applicable periods. As of December 31, 2015, had the holders of the remaining outstanding 4.75% Convertible Subordinated Notes converted their notes, the 4.75% Convertible Subordinated Notes would have been convertible into a maximum of 1,960,896 shares of the Company’s common stock. The conversion rates may be adjusted upon the occurrence of certain events, including for any cash dividend, but they will not be adjusted for accrued and unpaid interest. Holders of the 4.75% Convertible Subordinated Notes will not receive any cash payment representing accrued and unpaid interest upon conversion of a note. Accrued but unpaid interest will be deemed to be paid in full upon conversion rather than canceled, extinguished or forfeited. The Company does not have the right to redeem the 4.75% Convertible Subordinated Notes at its option. Holders of the 4.75% Convertible Subordinated Notes have the right to require the Company to purchase with cash all or a portion of the 4.75% Convertible Subordinated Notes upon the occurrence of a fundamental change, such as a change of control at a purchase price equal to 100% of the principal amount of the 4.75% Convertible Subordinated Notes plus accrued and unpaid interest, if any, to, but excluding, the date of repurchase. Following certain corporate transactions that constitute a change of control, the Company will increase the conversion rate for a holder who elects to convert the 4.75% Convertible Subordinated Notes in connection with such change of control in certain circumstances. Under an accounting standard for convertible debt instruments that may be settled in cash upon conversion (including partial cash settlement), the Company separated the 4.75% Convertible Subordinated Notes into a liability component and an equity component. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability (including any embedded features other than the conversion option) that does not have an associated equity component. The carrying amount of the equity component representing the embedded conversion option was determined by deducting the fair value of the liability component from the initial proceeds ascribed to the 4.75% Convertible Subordinated Notes as a whole. The excess of the principal amount of the liability component over its carrying amount is amortized to interest expense over the expected life of a similar liability that does not have an associated equity component using the effective interest method. The equity component is not remeasured as long as it continues to meet the conditions for equity classification as prescribed in the accounting standard for derivative financial instruments indexed to, and potentially settled in, an entity’s own common stock and the accounting standard for determining whether an instrument (or embedded feature) is indexed to an entity’s own stock. In May and June 2014, certain holders of the 4.75% Convertible Subordinated Notes elected to convert a total of $215,830,000 of the principal amount of the notes for 2,411,851 shares of the Company’s common stock and $51,671,000 in cash, comprised of accrued interest, premium and cash paid in lieu of issuing shares for certain note holders’ principal amount. As a result, the Company recognized a loss on debt extinguishment of $46,973,000 for the year ended December 31, 2014 in its consolidated statement of operations. The loss on debt extinguishment included the premium paid and the excess of the fair value of liability component of the 4.75% Convertible Subordinated Notes over its carrying amount, including debt discount and unamortized debt issuance costs, in accordance with the accounting standard for convertible debt instruments that may be settled in cash upon conversion (including partial cash settlement). In the Company’s consolidated statement of cash flows for the year ended December 31, 2014, the premium and cash paid in lieu of issuing shares to settle a portion of the principal amount were included within net cash provided by financing activities and the accrued interest paid was included within net cash provided by operating activities. In December 2015, certain holders of the 4.75% Convertible Subordinated Notes elected to convert a total of $7,803,000 of the principal amount of the notes at a conversion rate of 13.0655 shares of the Company’s common stock per $1,000 principal amount of the notes. The Company issued a total 101,947 shares of its common stock and paid approximately $1,000 in cash for residual shares in connection with the conversions. The Company recorded a $289,000 loss on debt extinguishment as a result of the conversions. Issuance and transaction costs incurred at the time of the issuance of the 4.75% Convertible Subordinated Notes with third parties are allocated to the liability and equity components and accounted for as debt issuance costs and equity issuance costs, respectively. The 4.75% Convertible Subordinated Notes consisted of the following as of December 31 (in thousands): 2015 2014 Equity component (1) $ 42,091 $ 44,278 Liability component: Principal $ 150,082 $ 157,885 Less debt discount and debt issuance costs, net (2) (3,961 ) (12,656 ) Net carrying amount $ 146,121 $ 145,229 __________________________ (1) Included in the consolidated balance sheets within additional paid-in capital. (2) Included in the consolidated balance sheets within convertible debt and is amortized over the remaining life of the 4.75% Convertible Subordinated Notes. As of December 31, 2015, the remaining life of the 4.75% Convertible Subordinated Notes was 0.46 years . The following table sets forth total interest expense recognized related to the 4.75% Convertible Subordinated Notes for the years ended December 31 (in thousands): 2015 2014 Contractual interest expense $ 7,501 $ 10,976 Amortization of debt issuance costs 428 629 Amortization of debt discount 8,060 10,448 $ 15,989 $ 22,053 Effective interest rate of the liability component 10.65 % 10.88 % To minimize the impact of potential dilution upon conversion of the 4.75% Convertible Subordinated Notes, the Company entered into capped call transactions ("the Capped Call") separate from the issuance of the 4.75% Convertible Subordinated Notes and paid a premium of $49,664,000 for the Capped Call in 2009. The Capped Call covers a total of approximately 4,432,638 shares of the Company’s common stock, subject to adjustment. Under the Capped Call, the Company effectively raised the conversion price of the 4.75% Convertible Subordinated Notes from $84.32 to $114.82 . In May and June 2014, the Company amended the Capped Call to provide that early exchanges of the 4.75% Convertible Subordinated Notes would not result in the termination of a relative amount of the Capped Call if the Company did not exercise the Capped Call at the time the 4.75% Convertible Subordinated Notes were exchanged. Instead, the Capped Call will remain outstanding in its entirety. The amendment to the Capped Call had no impact to the Company’s consolidated financial statements for the years ended December 31, 2015 and 2014, pursuant to the accounting standard for derivative financial instruments indexed to, and potentially settled in, an entity’s own common stock and the accounting standard for determining whether an instrument (or embedded feature) is indexed to an entity’s own stock. Pursuant to the declaration of the special distribution in October 2014, the Company further amended the Capped Call agreement to adjust the effective conversion price of the 4.75% Convertible Subordinated Notes from $81.48 to $110.85 per share of common stock as of December 31, 2014. Pursuant to the declaration of each quarterly dividend during 2015 and the declaration of the special distribution in September 2015, the Company further amended the Capped Call agreement to adjust the effective conversion price of the 4.75% Convertible Subordinated Notes from $76.54 to $104.14 per share of common stock as of December 31, 2015. Depending upon the Company’s stock price at the time the 4.75% Convertible Subordinated Notes are redeemed, the Capped Call will return up to 1,294,192 shares of the Company’s common stock to the Company; however, the Company will receive no benefit from the Capped Call if the Company’s stock price is $76.54 or lower at the time of conversion and will receive less shares than the 1,294,192 share maximum as described above for share prices in excess of $104.14 at the time of conversion than it would have received at a share price of $104.14 (the Company’s benefit from the Capped Call is capped at $104.14 and the benefit received begins to decrease above this price). Senior Notes The Company’s senior notes consisted of the following as of December 31 (in thousands): 2015 2014 5.375% Senior Notes due 2023 $ 1,000,000 $ 1,000,000 5.375% Senior Notes due 2022 750,000 750,000 4.875% Senior Notes due 2020 500,000 500,000 5.75% Senior Notes due 2025 500,000 500,000 5.875% Senior Notes due 2026 1,100,000 — 3,850,000 2,750,000 Less amount representing debt issuance cost (45,366 ) (32,954 ) $ 3,804,634 $ 2,717,046 2022 Senior Notes and 2025 Senior Notes In November 2014, the Company issued $750,000,000 million aggregate principal amount of 5.375% senior notes due January 1, 2022 , and $500,000,000 million aggregate principal amount of 5.750% senior notes due January 1, 2025 , which are referred to as the “2022 Senior Notes” and “2025 Senior Notes”, respectively, and collectively, as the “2022 and 2025 Senior Notes”. Interest on each series of the notes is payable semi-annually in arrears on January 1 and July 1 of each year , commencing on July 1, 2015 . The 2022 and 2025 Senior Notes are unsecured and rank equal in right of payment to the Company’s existing or future senior indebtedness and senior in right of payment to the Company’s existing and future subordinated indebtedness. The 2022 and 2025 Senior Notes are effectively subordinated to all of the existing and future secured debt, including debt outstanding under any bank facility or secured by any mortgage, to the extent of the assets securing such debt. They are also structur

Redeemable Non-Controlling Inte

Redeemable Non-Controlling Interests	12 Months Ended
	Dec. 31, 2015
Noncontrolling Interest [Abstract]
Redeemable Non-Controlling Interests	Redeemable Non-Controlling Interests The following table provides a summary of the activities of the Company’s redeemable non-controlling interests (in thousands): Balance as of December 31, 2013 $ 123,902 Net loss attributable to redeemable non-controlling interest (1,179 ) Other comprehensive income attributable to redeemable non-controlling interests 1,810 Increase in redemption value of non-controlling interests 90,913 Impact of foreign currency translation 1,724 Exercise of vested and outstanding ALOG stock options 8,459 Purchase price of redeemable non-controlling interests (225,629 ) Balances as of December 31, 2014 $ —

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity The Company’s authorized share capital is 300,000,000 shares of common stock and 100,000,000 shares of preferred stock, of which 25,000,000 is designated Series A, 25,000,000 is designated as Series A-1 and 50,000,000 is undesignated. As of December 31, 2015 and 2014, the Company had no preferred stock issued and outstanding. Common Stock In November 2015, the Company issued and sold 2,994,792 shares of its common stock in a public offering pursuant to a registration statement and a related prospectus and prospectus supplement, in each case filed with the Securities and Exchange Commission. The shares issued and sold included the full exercise of the underwriters’ option to purchase 390,625 additional shares. The Company received net proceeds of approximately $829,496,000 , after deducting underwriting discounts and commissions of $32,344,000 and estimated offering expenses of $660,000 . In December 2015, certain holders of the Company's 4.75% Convertible Subordinated Notes elected to convert a portion of the notes into 101,947 shares of the Company's common stock. See convertible debt in Note 9 for additional information. As of December 31, 2015, the Company had reserved the following shares of authorized but unissued shares of common stock for future issuances: Conversion of 4.75% Convertible Subordinated Notes 1,960,896 Common stock options and restricted stock units 5,848,288 Common stock employee purchase plans 3,577,911 11,387,095 Accumulated Other Comprehensive Loss The components of the Company’s accumulated other comprehensive loss consisted of the following as of December 31, 2015 (in thousands): Balance as of Net Balance as of Foreign currency translation adjustment ("CTA") loss $ (336,946 ) $ (186,763 ) $ (523,709 ) Unrealized gain (loss) on cash flow hedges (1) 6,603 4,550 11,153 Net investment hedge CTA gain (1) — 4,484 4,484 Unrealized gain (loss) on available for sale securities (2) (99 ) (40 ) (139 ) Net actuarial gain (loss) on defined benefit plans (3) (2,001 ) 1,153 (848 ) $ (332,443 ) $ (176,616 ) $ (509,059 ) __________________________ (1) Refer to Note 6 for a discussion of the amounts reclassified from accumulated other comprehensive loss to net income (loss). (2) The realized gains and losses reclassified from accumulated other comprehensive loss to net income (loss) were insignificant for the year ended December 31, 2015. (3) The Company has a defined benefit pension plan covering all employees in one country where such plans are mandated by law. The Company does not have any defined benefit plans in any other countries. The unamortized gain (loss) on defined benefit plans includes gains or losses resulting from a change in the value of either the projected benefit obligation or the plan assets resulting from a change in an actuarial assumption, net of amortization. Changes in foreign currencies can have a significant impact to the Company’s consolidated balance sheets (as evidenced above in the Company’s foreign currency translation gain or loss), as well as its consolidated results of operations, as amounts in foreign currencies are generally translating into more U.S. dollars when the U.S. dollar weakens or less U.S. dollars when the U.S. dollar strengthens. At December 31, 2015, the U.S. dollar was generally stronger relative to certain of the currencies of the foreign countries in which the Company operates. This overall strength of the U.S. dollar had an overall negative impact on the Company’s consolidated financial position because the foreign denominations translated into less U.S. dollars as evidenced by an increase in foreign currency translation loss for the year ended December 31, 2015 compared to the year ended December 31, 2014 as reflected in the above table. In future periods, the volatility of the U.S. dollar as compared to the other currencies in which the Company does business could have a significant impact on its consolidated financial position and results of operations including the amount of revenue that the Company reports in future periods. Share Repurchase Program 2013 Share Repurchase Program In December 2013, the Company’s Board of Directors (the “Board”) approved a share repurchase program (the “2013 Share Repurchase Program”) to repurchase up to $500,000,000 in value of the Company’s common stock in the open market or private transactions through December 31, 2014. The 2013 Share Repurchase Program was designed to return value to the Company’s shareholders and minimize dilution from stock issuances. During the year ended December 31, 2014, the Company repurchased a total of 1,517,743 shares of its common stock in the open market at an average price of $196.32 per share for total consideration of $297,958,000 under the 2013 Share Repurchase Program. During the year ended December 31, 2013, the Company repurchased a total of 288,739 shares of its common stock in the open market at an average price of $169.01 per share for total consideration of $48,799,000 under the 2013 Share Repurchase Program. The 2013 Share Repurchase Program expired on December 31, 2014. During the year ended December 31, 2015, the Company re-issued 7,348 shares of its treasury stock with a total value of $1,807,000 related to the settlement of restricted stock units and 11,784 shares of its treasury stock with a total value of $3,546,000 related to the exchange and conversion of the 4.75% Convertible Subordinated Notes (see Note 9). During the year ended December 31, 2014, the Company re-issued a total of 1,752,615 shares of its treasury stock with a total value of $345,858,000 primarily related to the exchange and conversions of the 4.75% Convertible Subordinated Notes and the exchanges and settlement of the 3.00% Convertible Subordinated Notes (see Note 9). 2011 Share Repurchase Program In November 2011, the Board approved a share repurchase program (the “2011 Share Repurchase Program”) to repurchase up to $250,000,000 in value of the Company’s common stock in the open market or private transactions through December 31, 2012. The 2011 Share Repurchase Program was designed to return value to the Company’s shareholders and minimize dilution from stock issuances. During the years ended December 31, 2012 and 2011, the Company repurchased a total of 131,489 shares and 870,421 shares, respectively, of its common stock in the open market at an average price of $101.64 and $99.57 per share for total consideration of $100,030,000 under the 2011 Share Repurchase Program. The 2011 Share Repurchase Program expired on December 31, 2012. During the year ended December 31, 2014, the Company re-issued a total of 355,477 shares of its treasury stock with a total value of $66,424,000 , primarily related to the exchange and conversions of the 4.75% Convertible Subordinated Notes (see Note 9). During the year ended December 31, 2013, the Company re-issued a total of 8,266 shares of its treasury stock with a total value of $811,000 , primarily related to the settlement of restricted stock units. During the year ended December 31, 2012, the Company re-issued a total of 638,167 shares of its treasury stock with a total value of $63,354,000 , primarily related to the settlement of the 2.50% Convertible Subordinated Notes (see Note 9). Special Distributions In September 2015, the Company’s Board of Directors declared a special distribution of $627,000,000 , or approximately $10.95 per share (the “2015 Special Distribution”), to its common stockholders. The 2015 Special Distribution represents an amount that includes the sum of: (1) foreign earnings and profits repatriated as dividend income in 2015; (2) taxable income in 2015 from depreciation recapture in respect of accounting method changes commenced in the Company’s pre-REIT period; and (3) certain other items of taxable income. The 2015 Special Distribution was paid on November 10, 2015 to the Company’s common stockholders of record as of the close of business on October 8, 2015 . Common stockholders had the option to elect to receive payment of the 2015 Special Distribution in the form of stock or cash. The number of shares distributed was determined based upon common stockholder elections and the average closing price of the Company’s common stock on the three trading days commencing on November 3, 2015 or $297.03 per share. As such, the Company issued 1,688,411 shares of its common stock and paid $125,486,000 in connection with the 2015 Special Distribution. In October 2014, the Company’s Board of Directors declared a special distribution of $416,000,000 , or approximately $7.57 per share (the “2014 Special Distribution”), to its common stockholders in connection with the Company’s planned conversion to a REIT. The 2014 Special Distribution was paid on November 25, 2014 to the Company’s common stockholders of record as of the close of business on October 27, 2014 . Common stockholders had the option to elect to receive payment of the 2014 Special Distribution in the form of stock or cash, with the total cash payment to all stockholders limited to no more than 20% of the total distribution. The number of shares distributed was determined based upon common stockholder elections and the average closing price of the Company’s common stock on the three trading days commencing on November 18, 2014 or $224.45 per share. As such, the Company issued 1,482,419 shares of its common stock and paid $83,266,000 in connection with the 2014 Special Distribution. Shares issued in connection with the 2015 Special Distribution and the 2014 Special Distribution impact weighted average shares outstanding from the date of issuance, thus impacting the Company’s earnings per share data prospectively from the distribution date. Dividends During the year ended December 31, 2015, the Company's Board of Directors declared quarterly cash dividends of $1.69 per share on October 28, July 29, May 7 and February 19, 2015, with record dates of December 9, August 26, May 27 and March 11, 2015, respectively, and payment dates of December 16, September 16, June 17 and March 25, 2015, respectively. The Company paid a total of $393,584,000 in cash dividends during the year ended December 31, 2015. In addition, as of December 31, 2015, for dividends and special distributions attributed to the RSU awards, the Company recorded a short term dividend payable of $13,674,000 and a long term dividend payable of $13,394,000 for the restricted stock units that have not yet vested (See Note 12).

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation ALOG Equity Awards In July 2011, ALOG, in which the Company had an indirect controlling interest (see Note 2), granted 885,840 stock options to purchase common shares of ALOG to certain of ALOG’s employees with a weighted-average exercise price of approximately $6.35 and a weighted-average fair value of approximately $1.53 (the “2011 ALOG Stock Options”). The 2011 ALOG Stock Options were canceled in December 2012 and replaced with a new grant of stock options for 18,421,648 shares of which stock options for 4,711,808 shares were immediately vested (the “2012 ALOG Stock Options”). The 2012 ALOG Stock Options were accounted for as liability-classified awards under the accounting standard for share-based payments and were be re-measured each reporting period prospectively until the underlying shares were settled. Under certain circumstances, the 2012 ALOG Stock Options were eligible for net cash settlement by the stock option holders. In July 2014, the Company paid $8,459,000 in cash to settle all vested and outstanding stock options to purchase common shares of ALOG that were held by ALOG employees. Equinix Equity Awards Equity Compensation Plans In May 2000, the Company’s stockholders approved the adoption of the 2000 Equity Incentive Plan as the successor plan to the 1998 Stock Plan. Beginning in August 2000, the Company no longer issued additional grants under the 1998 Stock Plan, and unexercised options under the 1998 Stock Plan that are canceled due to an optionee’s termination may be reissued under the successor 2000 Equity Incentive Plan. Under the 2000 Equity Incentive Plan, nonstatutory stock options, restricted shares, restricted stock units, and stock appreciation rights may be granted to employees, outside directors and consultants at not less than 85% of the fair value on the date of grant, and incentive stock options may be granted to employees at not less than 100% of the fair value on the date of grant. Options granted prior to October 1, 2005 generally expire 10 years from the grant date, and equity awards granted to employees and consultants on or after October 1, 2005 will generally expire 7 years from the grant date, subject to continuous service of the optionee. Equity awards granted under the 2000 Equity Incentive Plan generally vest over 4 years. As of December 31, 2015, the Company had reserved a total of 16,636,172 shares for issuance under the 2000 Equity Incentive Plan of which 3,628,457 were still available for grant. The 2000 Equity Incentive Plan is administered by the Compensation Committee of the Board of Directors (the “Compensation Committee”), and the Compensation Committee may terminate or amend the plan, with approval of the stockholders as may be required by applicable law, at any time. In May 2000, the Company’s stockholders approved the adoption of the 2000 Director Option Plan, which was amended and restated effective January 1, 2003. Under the 2000 Director Option Plan, each non-employee board member who was not previously an employee of the Company will receive an automatic initial nonstatutory stock option grant, which vests in four annual installments. In addition, each non-employee board member will receive an annual non-statutory stock option grant on the date of the Company’s regular Annual Meeting of Stockholders, provided the board member will continue to serve as a director thereafter. Such annual option grants shall vest in full on the earlier of a) the first anniversary of the grant, or b) the date of the regular Annual Meeting of Stockholders held in the year following the grant date. A new director who receives an initial option will not receive an annual option in the same calendar year. Options granted under the 2000 Director Option Plan will have an option price not less than 100% of the fair value on the date of grant and will have a 10 -year contractual term, subject to continuous service of the board member. On December 18, 2008, the Company’s Board of Directors passed resolutions eliminating all automatic stock option grant mechanisms under the 2000 Director Option Plan, and replaced them with an automatic restricted stock unit grant mechanism under the 2000 Equity Incentive Plan. As of December 31, 2015, the Company had reserved 594,403 shares for issuance under the 2000 Director Option Plan of which 505,646 were still available for grant. The 2000 Director Option Plan is administered by the Compensation Committee and the Compensation Committee may terminate or amend the plan, with approval of the stockholders as may be required by applicable law, at any time. In September 2001, the Company adopted the 2001 Supplemental Stock Plan, under which non-statutory stock options and restricted shares/restricted stock units may be granted to consultants and employees who are not executive officers or board members, at not less than 85% of the fair value on the date of grant. Options granted prior to October 1, 2005 generally expire 10 years from the grant date, and options granted on or after October 1, 2005 will generally expire seven years from the grant date, subject to continuous service of the optionee. Current stock options granted under the 2001 Supplemental Stock Plan generally vest over four years. As of December 31, 2015, the Company had reserved a total of 1,494,275 shares for issuance under the 2001 Supplemental Stock Plan, of which 260,498 were still available for grant. The 2001 Supplemental Stock Plan is administered by the Compensation Committee, and the plan will continue in effect indefinitely unless the Compensation Committee decides to terminate it earlier. The 1998 Stock Plan, 2000 Equity Incentive Plan, 2000 Director Option Plan and 2001 Supplemental Stock Plan are collectively referred to as the “Equity Compensation Plans.” Stock Options Stock option activity under the Equity Compensation Plans is summarized as follows: Number of shares outstanding Weighted average exercise price per share Weighted average remaining contractual life (years) Aggregate intrinsic value (1) (dollars in thousands) Stock options outstanding at December 31, 2012 296,529 $ 68.68 Stock options exercised (147,819 ) 63.66 Stock options canceled (655 ) 3.06 Stock options outstanding at December 31, 2013 148,055 73.99 Stock options exercised (71,780 ) 72.44 Additional shares granted due to special distribution 1,659 — Stock options outstanding at December 31, 2014 77,934 73.84 Stock options exercised (41,889 ) 64.18 Additional shares granted due to special distribution 1,454 — Stock options expired (250 ) 41.12 Stock options outstanding at December 31, 2015 37,249 82.06 1.72 $ 8,208 Stock options vested and exercisable at December 31, 2015 37,249 82.06 1.72 8,208 __________________________ (1) The aggregate intrinsic value is calculated as the difference between the market value of the stock as of December 31, 2015 and the exercise price of the option. The following table summarizes information about outstanding stock options as of December 31, 2015: Outstanding Exercisable Range of exercise prices Number of shares Weighted average remaining contractual life (years) Weighted-average exercise price Number of shares Weighted-average exercise price $28.56 to $54.22 1,631 2.88 $ 35.83 1,631 $ 35.83 $80.84 to $81.23 21,183 1.21 81.13 21,183 81.13 $88.56 to $89.23 14,435 2.35 88.63 14,435 88.63 37,249 1.72 82.06 37,249 82.06 The Company provides the following additional disclosures for stock options as of December 31 (dollars in thousands): 2015 2014 2013 Total fair value of stock options vested $ — $ 45 $ 485 Total aggregate intrinsic value of stock options exercised (1) 7,198 9,227 19,385 _________________________ (1) The intrinsic value is calculated as the difference between the market value of the stock on the date of exercise and the exercise price of the option. Restricted Stock Units Since 2008, the Company primarily grants restricted stock units to its employees, including executives and non-employee directors, in lieu of stock options. The Company generally grants restricted stock units that have a service condition only or have both a service and performance condition. Each restricted stock unit is not considered issued and outstanding and does not have voting rights until it is converted into one share of the Company’s common stock upon vesting. Restricted stock unit activity is summarized as follows: Number of shares outstanding Weighted-average grant date fair value per share Weighted-average remaining contractual life (years) Aggregate intrinsic value (1) (dollars in thousands) Restricted stock units outstanding, December 31, 2012 1,583,840 $ 115.22 Restricted stock units granted 775,029 204.20 Restricted stock units released, vested (738,767 ) 199.14 Restricted stock units canceled (110,720 ) 138.27 Restricted shares outstanding, December 31, 2013 1,509,382 122.05 Restricted stock units granted 803,692 190.90 Additional shares granted due to special distribution 48,171 224.45 Restricted stock units released, vested (703,393 ) 201.85 Restricted stock units canceled (253,878 ) 179.71 Restricted shares outstanding, December 31, 2014 1,403,974 114.56 Restricted stock units granted 711,990 236.89 Additional shares granted due to special distribution 51,432 297.03 Restricted stock units released, vested (623,554 ) 173.79 Special distribution shares released (19,966 ) 227.99 Restricted stock units canceled (103,922 ) 198.67 Special distribution shares canceled (3,516 ) 235.43 Restricted shares outstanding, December 31, 2015 1,416,438 148.53 1.21 $ 428,331 __________________________ (1) The intrinsic value is calculated based on the market value of the stock as of December 31, 2015. The total fair value of restricted stock units vested and released during the years ended December 31, 2015, 2014 and 2013 was $157,605,000 , $141,980,000 and $147,119,000 . Employee Stock Purchase Plan In June 2004, the Company’s stockholders approved the adoption of the 2004 Employee Stock Purchase Plan (the “2004 Purchase Plan”) as a successor plan to a previous plan that ceased activity in 2005. A total of 500,000 shares have been reserved for issuance under the 2004 Purchase Plan, and the number of shares available for issuance under the 2004 Purchase Plan automatically increased on January 1 each year, beginning in 2005 and ending in 2014 by the lesser of 2% of the shares of common stock then outstanding or 500,000 shares. Effective November 25, 2014, 3,197 shares were added to the 2004 Purchase Plan, representing an anti-dilutive adjustment pursuant to the 2014 Special Distribution. Effective November 10, 2015, 9,020 shares were added to the 2004 Purchase Plan, representing an anti-dilutive adjustment pursuant to the 2015 Special Distribution. As of December 31, 2015, a total of 3,577,911 shares remained available for purchase under the 2004 Purchase Plan. The 2004 Purchase Plan permits eligible employees to purchase common stock on favorable terms via payroll deductions of up to 15% of the employee’s cash compensation, subject to certain share and statutory dollar limits. Two overlapping offering periods commence during each calendar year, on each February 15 and August 15 or such other periods or dates as determined by the Compensation Committee from time to time, and the offering periods last up to 24 months with a purchase date every six months. The price of each share purchased is 85% of the lower of a) the fair value per share of common stock on the last trading day before the commencement of the applicable offering period or b) the fair value per share of common stock on the purchase date. The 2004 Purchase Plan is administered by the Compensation Committee of the Board of Directors, and such plan will terminate automatically in June 2024 unless a) the 2004 Purchase Plan is extended by the Board of Directors and b) the extension is approved within 12 months by the Company’s stockholders. The Company provides the following disclosures for the 2004 Purchase Plan as of December 31 (dollars, except shares): 2015 2014 2013 Weighted-average purchase price per share $ 150.13 $ 144.95 $ 108.97 Weighted average grant-date fair value per share of shares purchased 57.63 53.37 41.30 Number of shares purchased 182,175 166,384 214,985 The Company uses the Black-Scholes option-pricing model to determine the fair value of shares purchased under the 2004 Purchase Plan with the following weighted average assumptions for the years ended December 31: 2015 2014 2013 Dividend yield 2.65 - 2.81% 0 % 0 % Expected volatility 31 % 34 % 41 % Risk-free interest rate 0.26 % 0.19 % 0.37 % Expected life (in years) 1.25 1.25 1.25 Stock-Based Compensation Recognized in the Consolidated Statement of Operations The Company generally recognizes stock-based compensation expense on a straight-line basis over the requisite service period of the awards. However, for awards with market conditions or performance conditions, stock-based compensation expense is recognized on a straight-line basis over the requisite service period for each vesting tranche of the award. In October 2014, the Compensation Committee approved amendments to the terms of all outstanding restricted stock units (“RSUs”) granted prior to January 1, 2014 to provide for dividend equivalent rights (“DERs”) in the event of future dividends paid on the Company’s common stock. The Compensation Committee also approved an adjustment to outstanding stock options, including those under the Company’s Employee Stock Purchase Plan (“ESPP”), to ensure that the cash portion of the 2014 Special Distribution would not negatively impact the intrinsic value of the options. Pursuant to the accounting standard for stock compensation, these actions affecting the terms of the awards are considered modifications for accounting purposes that resulted in incremental stock-based compensation expenses and will be recognized over the requisite service period for each vesting tranche of the award. The total charges associated with this modification are insignificant to the financial statements. As of December 31, 2015, the total stock-based compensation cost related to unvested equity awards not yet recognized, net of estimated forfeitures, totaled $201,206,000 which is expected to be recognized over a weighted-average period of 2.08 years. The following table presents, by operating expense, the Company’s stock-based compensation expense recognized in the Company’s consolidated statement of operations for the years ended December 31 (in thousands): 2015 2014 2013 Cost of revenues $ 9,878 $ 8,511 $ 7,855 Sales and marketing 36,847 30,084 26,538 General and administrative 86,908 79,395 68,547 $ 133,633 $ 117,990 $ 102,940 The Company’s stock-based compensation recognized in the consolidated statement of operations was comprised of the following types of equity awards for the years ended December 31 (in thousands): 2015 2014 2013 Stock options $ 1,679 $ 4,917 $ 3,456 Restricted shares and restricted stock units 124,512 104,235 88,411 Employee stock purchase plan 7,442 8,838 11,073 $ 133,633 $ 117,990 $ 102,940 Stock-based compensation for stock options for the year ended December 31, 2015 included $1,191,000 in as a result of the Company's acquisition of Bit-isle in November 2015. During the years ended December 31, 2015, 2014 and 2013, the Company capitalized $2,987,000 , $3,958,000 and $3,305,000 , respectively, of stock-based compensation expense as construction in progress in property, plant and equipment.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In September 2012, the Company announced that its Board of Directors approved a plan for Equinix to pursue conversion to a REIT. On December 23, 2014, its Board of Directors formally approved its conversion to a REIT effective on January 1, 2015. The Company completed the implementation of the REIT conversion in 2014, and, as a result, the Company elected to be treated as a REIT for federal income tax purposes effective January 1, 2015. In May 2015, the Company received a favorable PLR from the IRS in connection with the Company’s conversion to a REIT for federal income tax purposes. As a result, the Company may deduct the distributions made to its shareholders from taxable income generated by the Company and its QRSs. The Company’s dividends paid deduction generally eliminates the taxable income of the Company and its QRSs, resulting in no U.S. income tax due. However, the TRSs will continue to be subject to income taxes on any taxable income generated by them. In addition, the foreign operations of the Company will continue to be subject to local income taxes regardless of whether the foreign operations are operated as a QRS or a TRS. Income (loss) before income taxes is attributable to the following geographic locations for the years ended December 31, (in thousands): 2015 2014 2013 Domestic $ 123,153 $ (46,876 ) $ (28,362 ) Foreign 87,845 131,609 140,641 Income before income taxes and income (loss) attributable to redeemable non-controlling interests $ 210,998 $ 84,733 $ 112,279 The tax benefit (expenses) for income taxes consisted of the following components for the years ended December 31, (in thousands): 2015 2014 2013 Current: Federal $ (85,352 ) $ (98,445 ) $ (100,035 ) State and local (3,984 ) (16,243 ) (15,260 ) Foreign (27,090 ) (31,844 ) (29,377 ) Subtotal (116,426 ) (146,532 ) (144,672 ) Deferred: Federal 87,801 (177,877 ) 111,721 State and local 4,600 (21,539 ) 17,044 Foreign 801 489 (249 ) Subtotal 93,202 (198,927 ) 128,516 Provision for income taxes $ (23,224 ) $ (345,459 ) $ (16,156 ) State and foreign taxes not based on income are included in general and administrative expenses and the aggregate amounts were insignificant for the years ended December 31, 2015, 2014 and 2013. The Company is entitled to a deduction for federal and state tax purposes with respect to employee equity award activity. The reduction in income tax payable related to windfall tax benefits for stock-based compensation awards has been reflected as an adjustment to additional paid-in capital. For the years ended December 31, 2015, 2014 and 2013, the benefits arising from employee equity award activity that resulted in an adjustment to additional paid-in capital were approximately $30,000 , $18,561,000 and $25,638,000 , respectively. The amount of benefits for 2015 is significantly lower than the prior years due to the zero effective U.S. tax rate that applies to the REIT as the Company distributed 100% of its U.S. taxable income for 2015. The fiscal 2015, 2014 and 2013 income tax expense differed from the amounts computed by applying the U.S. federal income tax rate of 35% to pre-tax income as a result of the following for the years ended December 31 (in thousands): 2015 2014 2013 Federal tax at statutory rate $ (73,849 ) $ (29,657 ) $ (39,298 ) State and local taxes 945 1,370 7,435 Deferred tax assets generated in current year not benefited (4,916 ) (3,311 ) (4,777 ) Foreign income tax rate differential 30,387 20,002 21,392 Non-deductible expenses (14,252 ) (1,274 ) (2,525 ) Stock-based compensation expense (3,922 ) (4,496 ) (3,273 ) Change in valuation allowance 710 1,655 1,362 Foreign financing benefits 2,592 2,981 4,303 Uncertain tax positions reserve (3,191 ) (463 ) 2,952 Statutory rate change due to REIT conversion 45,823 (324,142 ) — Other, net (3,551 ) (8,124 ) (3,727 ) Total income tax expense $ (23,224 ) $ (345,459 ) $ (16,156 ) The Company had not previously provided for deferred taxes on the excess of the financial reporting over the tax basis in its investments in foreign subsidiaries that are essentially permanent in duration because the Company intended to reinvest the earnings outside the U.S. for an indefinite period of time. As a result of the Company’s conversion to a REIT effective January 1, 2015, it is no longer the Company’s intent to indefinitely reinvest undistributed foreign earnings from its operations in Europe and Canada. However, no deferred tax liability has been recognized to account for this change because the expected recovery of the basis difference will not result in taxes in the post-REIT conversion periods. As it continues to qualify as a REIT, the Company will not incur U.S. tax liability on the future repatriation of the foreign earnings and profits of the above noted jurisdictions due to the zero tax rate that will apply provided the Company distributes 100% of its taxable income. The Company will continue to reinvest its undistributed foreign earnings in jurisdictions other than Europe indefinitely. The foreign withholding taxes are expected to be immaterial if these undistributed foreign earnings are distributed. The types of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are set out below as of December 31 (in thousands): 2015 2014 Deferred tax assets: Reserves and accruals $ 13,013 $ 11,952 Stock-based compensation expense 1,459 1,185 Unrealized currency gains/losses 10,656 — Others, net 18 — Operating loss carryforwards 34,457 27,687 Gross deferred tax assets 59,603 40,824 Valuation allowance (29,894 ) (27,181 ) Total deferred tax assets, net 29,709 13,643 Deferred tax liabilities: Property, plant and equipment (3,365 ) (78,261 ) Unrealized currency gains/losses — (502 ) Fixed assets fair value step-up (5,683 ) (7,210 ) Intangible assets (60,133 ) (28,433 ) Total deferred tax liabilities (69,181 ) (114,406 ) Net deferred tax liabilities $ (39,472 ) $ (100,763 ) The tax basis of REIT assets, excluding investments in TRSs, is greater than the amounts reported for such assets in the accompanying consolidated balance sheet by approximately $984,400,000 at December 31, 2015. The Company's accounting for deferred taxes involves weighing positive and negative evidence concerning the realizability of the Company's deferred tax assets in each tax jurisdiction. After considering such evidence as the nature, frequency and severity of current and cumulative financial reporting losses, and the sources of future taxable income and tax planning strategies, management concluded that valuation allowances were required in certain foreign jurisdictions. A valuation allowance continues to be provided for the deferred tax assets, net of deferred tax liabilities, associated with the Company's operations in certain jurisdictions located in the Company’s EMEA and Asia-Pacific regions, as well as two entities in Brazil. The operations in these jurisdictions have a history of significant losses as of December 31, 2015. As such, management does not believe these operations have established a sustained history of profitability and that a valuation allowance is, therefore, necessary. Changes in the valuation allowance for deferred tax assets for the years ended December 31, 2015, 2014 and 2013 are as follows (in thousands): 2015 2014 2013 Beginning balance $ 27,181 $ 31,058 $ 44,868 Recognized into income (710 ) (1,655 ) (1,362 ) Current Increase (Decrease) 4,513 721 (10,156 ) NOL and tax credit expiration — 238 11 Translation adjustment (1,090 ) (3,181 ) (2,303 ) Ending balance $ 29,894 $ 27,181 $ 31,058 Federal and state tax laws, including California tax laws, impose substantial restrictions on the utilization of net operating loss and credit carryforwards in the event of an "ownership change" for tax purposes, as defined in Section 382 of the Internal Revenue Code. In 2003, the Company conducted an analysis to determine whether an ownership change had occurred due to significant stock transactions in each of the reporting years disclosed at that time. The analysis indicated that an ownership change occurred during fiscal year 2002, which resulted in an annual limitation of approximately $819,000 for net operating loss carryforwards generated prior to 2003. Therefore, the Company substantially reduced its federal and state net operating loss carryforwards for the periods prior to 2003 to approximately $16,400,000. In addition, an ownership change under Section 382 of the Internal Revenue Code was triggered in September 2007 by the issuance of 4,211,939 shares of the Company's common stock. However, the annual limitation associated with this ownership change is not meaningful due to the substantial market capitalization of the Company at the time of the ownership change. The Company determined that no Section 382 ownership change occurred during the year ended December 31, 2015. In addition, the net operating loss acquired in the Switch and Data acquisition in 2010 is subject to the Section 382 limitation; however, the Company has determined that none of the acquired net operating losses will expire unused as a result of the limitation. The Company utilized all of its net operating loss carryforwards that were not subject to the limitation under Section 382 as discussed above for federal income tax purposes during the year ended December 31, 2013. The Company’s U.S. operations generated significant taxable income (versus book income) for the years ended December 31, 2015 and 2014 primarily due to the change in the tax method for depreciation of the Company’s property, plant and equipment. As the result of announcing its plan to pursue a REIT conversion, the Company changed its methods of depreciating and amortizing various data center assets to methods that are more consistent with the characterization of such assets as real property for REIT purposes. The change in the depreciation method resulted in the recapture of depreciation expense deducted in prior years and a much smaller amount of depreciation expense for the years ended December 31, 2015 and 2014. The Company’s net operating loss carryforwards for federal, state and foreign tax purposes which expire, if not utilized, at various intervals from 2015 , are outlined below (in thousands): Expiration Date Federal (1) State (1) Foreign Total 2016 $ — $ 12,793 $ 1,464 $ 14,257 2017 to 2019 — 190 32,464 32,654 2020 to 2022 213,390 — 11,798 225,188 2023 to 2025 26,838 4,005 9,611 40,454 2026 to 2028 12,186 — — 12,186 2029 to 2031 — 3,330 — 3,330 Thereafter — — 152,073 152,073 $ 252,414 $ 20,318 $ 207,410 $ 480,142 (1) The total amount of net operating loss carryforwards that will not be available to offset the Company’s future taxable income after dividend paid deduction due to Section 382 limitations was $258,339 , comprising $241,766 of federal and $16,573 of state. Approximately $4,443,000 of the total net operating loss carryforwards is attributable to excess tax deductions related to employee stock awards, the benefit from which will be credited to additional paid-in capital when subsequently utilized in future years. The beginning and ending balances of the Company's unrecognized tax benefits are reconciled below for the years ended December 31 (in thousands): 2015 2014 2013 Beginning balance $ 36,138 $ 36,552 $ 25,050 Gross increases related to prior year tax positions — 1,200 14,596 Gross decreases related to prior year tax positions (8,645 ) (984 ) (3,028 ) Gross increases related to current year tax positions 4,802 1,538 1,498 Decreases resulting from expiration of statute of limitation (1,450 ) (1,112 ) (1,564 ) Decreases resulting from settlements — (1,056 ) — Ending balance $ 30,845 $ 36,138 $ 36,552 The Company recognizes interest and penalties related to unrecognized tax benefits within income tax benefit (expense) in the consolidated statement of operations. During the years ended December 31, 2015, 2014 and 2013, the accrued interest and penalties related to the unrecognized tax benefits were decreased by $1,701,000 , $3,126,000 and $1,612,000 , respectively, primarily resulting from the settlement of tax audits and the lapse of statutes of limitations in its foreign operations. The Company has accrued $3,736,000 and $5,437,000 for interest and penalties accrued at December 31, 2015 and 2014, respectively. The unrecognized tax benefits of $30,845,000 as of December 31, 2015, if subsequently recognized, will affect the Company's effective tax rate favorably at the time when such a benefit is recognized. Due to various tax years open for examination, it is reasonably possible that the balance of unrecognized tax benefits could significantly increase or decrease over the next 12 months as the Company may be subject to either examination by tax authorities or a lapse in statute of limitations. The Company is currently unable to estimate the range of possible adjustments to the balance of unrecognized tax benefits. The Company's income tax returns for all tax years remain open to examination by federal and state taxing authorities due to the Company's net operating loss carryforwards. In addition, the Company's tax years of 2005 through 2014 remain open and subject to examination by local tax authorities in certain foreign jurisdictions in which the Company has major operations.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase Commitments Primarily as a result of the Company’s various IBX expansion projects, as of December 31, 2015, the Company was contractually committed for $256,757,000 of unaccrued capital expenditures, primarily for IBX equipment not yet delivered and labor not yet provided, in connection with the work necessary to open these IBX data centers and make them available to customers for installation. In addition, the Company had numerous other, non-capital purchase commitments in place as of December 31, 2015, such as commitments to purchase power in select locations, primarily in select locations through 2016 and thereafter, and other open purchase orders for goods or services to be delivered or provided during 2016 and thereafter. Such other miscellaneous purchase commitments totaled $352,202,000 as of December 31, 2015. Contingent Liabilities The Company estimates exposure on certain liabilities, such as income and property taxes, based on the best information available at the time of determination. With respect to real and personal property taxes, the Company records what it can reasonably estimate based on prior payment history, current landlord estimates or estimates based on current or changing fixed asset values in each specific municipality, as applicable. However, there are circumstances beyond the Company’s control whereby the underlying value of the property or basis for which the tax is calculated on the property may change, such as a landlord selling the underlying property of one of the Company’s IBX data center leases or a municipality changing the assessment value in a jurisdiction and, as a result, the Company’s property tax obligations may vary from period to period. Based upon the most current facts and circumstances, the Company makes the necessary property tax accruals for each of its reporting periods. However, revisions in the Company’s estimates of the potential or actual liability could materially impact the financial position, results of operations or cash flows of the Company. From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of its business activities. The Company accrues contingent liabilities when it is probable that future expenditures will be made and such expenditures can be reasonably estimated. In the opinion of management, there are no pending claims for which the outcome is expected to result in a material adverse effect in the financial position, results of operations or cash flows of the Company. Employment Agreements The Company has entered into a severance agreement with each of its executive officers that provides for a severance payment equal to the executive officer’s annual base salary and maximum bonus in the event his or her employment is terminated for any reason other than cause or he or she voluntarily resigns under certain circumstances as described in the agreement. In addition, under the agreement, the executive officer is entitled to the payment of his or her monthly health care premiums under the Consolidated Omnibus Budget Reconciliation Act for up to 12 months. For certain executive officers, these benefits are only triggered after a change-in-control of the Company. Guarantor Arrangements As permitted under Delaware law, the Company has agreements whereby the Company indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was serving, at the Company’s request in such capacity. The term of the indemnification period is for the officer's or director's lifetime. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has a director and officer insurance policy that limits the Company’s exposure and enables the Company to recover a portion of any future amounts paid. As a result of the Company’s insurance policy coverage, the Company believes the estimated fair value of these indemnification agreements is minimal. The Company has no liabilities recorded for these agreements as of December 31, 2015. The Company enters into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally the Company’s business partners or customers, in connection with any U.S. patent, or any copyright or other intellectual property infringement claim by any third party with respect to the Company’s offerings. The term of these indemnification agreements is generally perpetual any time after execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has never incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these agreements is minimal. The Company has no liabilities recorded for these agreements as of December 31, 2015. The Company enters into arrangements with its business partners, whereby the business partner agrees to provide services as a subcontractor for the Company’s implementations. Accordingly, the Company enters into standard indemnification agreements with its customers, whereby the Company indemnifies them for other acts, such as personal property damage, of its subcontractors. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has general and umbrella insurance policies that enable the Company to recover a portion of any amounts paid. The Company has never incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these agreements is minimal. The Company has no liabilities recorded for these agreements as of December 31, 2015. The Company has service level commitment obligations to certain of its customers. As a result, service interruptions or significant equipment damage in the Company’s IBX data centers, whether or not within the Company’s control, could result in service level commitments to these customers. The Company’s liability insurance may not be adequate to cover those expenses. In addition, any loss of services, equipment damage or inability to meet the Company’s service level commitment obligations could reduce the confidence of the Company’s customers and could consequently impair the Company’s ability to obtain and retain customers, which would adversely affect both the Company’s ability to generate revenues and the Company’s operating results. The Company generally has the ability to determine such service level credits prior to the associated revenue being recognized. The Company has no significant liabilities in connection with service level credits as of December 31, 2015.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company has several significant stockholders and other related parties that are also customers and/or vendors. The Company’s activity of related party transactions was as follows (in thousands): Years ended December 31, 2015 2014 2013 Revenues $ 10,745 $ 8,392 $ 20,140 Costs and services 10,808 8,351 4,819 As of December 31, 2015 2014 Accounts receivable $ 797 $ 1,022 Accounts payable 254 —

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Segment Information	Segment Information While the Company has a single line of business, which is the design, build-out and operation of IBX data centers, it has determined that it has three reportable segments comprised of its Americas, EMEA and Asia-Pacific geographic regions. The Company’s chief operating decision-maker evaluates performance, makes operating decisions and allocates resources based on the Company’s revenue and adjusted EBITDA performance both on a consolidated basis and based on these three reportable segments. The Company defines adjusted EBITDA as income or loss from operations plus depreciation, amortization, accretion, stock-based compensation expense, restructuring charges, impairment charges and acquisition costs as presented below for the years ended December 31 (in thousands): 2015 2014 2013 Adjusted EBITDA: Americas $ 698,604 $ 635,007 $ 608,718 EMEA 318,561 269,222 216,186 Asia-Pacific 254,462 209,662 175,994 Total adjusted EBITDA 1,271,627 1,113,891 1,000,898 Depreciation, amortization and accretion expense (528,929 ) (484,129 ) (431,008 ) Stock-based compensation expense (133,633 ) (117,990 ) (102,940 ) Restructuring charges — — 4,837 Acquisitions costs (41,723 ) (2,506 ) (10,855 ) Income from operations $ 567,342 $ 509,266 $ 460,932 The Company provides the following segment disclosures related to its continuing operations as follows for the years ended December 31 (in thousands): 2015 2014 2013 Total revenues: Americas (1) $ 1,512,535 $ 1,376,103 $ 1,264,774 EMEA 698,807 637,265 525,018 (2) Asia-Pacific 514,525 430,408 362,974 2,725,867 $ 2,443,776 $ 2,152,766 Total depreciation and amortization: Americas $ 278,216 $ 261,018 $ 254,365 EMEA 117,655 114,511 90,891 (2) Asia-Pacific 129,709 106,162 87,475 $ 525,580 $ 481,691 $ 432,731 Capital expenditures: Americas $ 401,685 $ 333,315 $ 261,936 EMEA 202,322 151,634 170,365 Asia-Pacific 264,113 175,254 140,105 $ 868,120 $ 660,203 $ 572,406 __________________________ (1) Includes revenues of $1,404,648 , $1,257,661 and $1,157,790 , respectively, attributed to the U.S. for the years ended December 31, 2015, 2014 and 2013. (2) Includes the operations of Frankfurt Kleyer 90 Carrier Hotel from October 1, 2013 to December 31, 2013. The Company’s long-lived assets are located in the following geographic areas as of December 31 (in thousands): 2015 2014 Americas (1) $ 3,025,450 $ 2,874,562 EMEA 1,157,304 1,135,319 Asia-Pacific 1,423,682 988,389 $ 5,606,436 $ 4,998,270 _________________________ (1) Includes $2,781,924 and $2,609,268 , respectively, of long-lived assets attributed to the U.S. as of December 31, 2015 and 2014. Revenue information by category is as follows for the years ended December 31 (in thousands): 2015 2014 2013 Colocation $ 2,024,963 $ 1,829,812 $ 1,628,179 Interconnection 435,809 372,350 319,863 Managed infrastructure 97,688 105,292 97,400 Rental 10,681 10,336 4,520 Recurring revenues 2,569,141 2,317,790 2,049,962 Non-recurring revenues 156,726 125,986 102,804 $ 2,725,867 2,443,776 2,152,766

Restructuring Charges

Restructuring Charges	12 Months Ended
	Dec. 31, 2015
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges During the years ended December 31, 2015 and 2014, the Company did not record any restructuring charges. 2004 Restructuring Charge In December 2004, in light of the availability of fully built-out data centers in select markets at costs significantly below those costs the Company would incur in building out new space, the Company made the decision to exit leases for excess space adjacent to one of the Company’s New York metro area IBXs, as well as space on the floor above its original Los Angeles IBX. As a result of the Company’s decision to exit these spaces, the Company recorded restructuring charges totaling $17,685,000 , which represents the present value of the Company’s estimated future cash payments, net of estimated sublease income and expense, through the remainder of these lease terms, as well as the write-off of all remaining property, plant and equipment attributed to the partial build out of the excess space on the floor above its Los Angeles IBX. In May 2013, the Company entered into a binding commitment to purchase the New York 2 IBX data center for leased space in respect of which the Company had previously recorded a restructuring reserve. As a result, the Company recorded a reversal to its outstanding accrued restructuring charge during the year ended December 31, 2013. A summary of the movement in the 2004 accrued restructuring charges during the year ended December 31, 2013 is outlined as follows (in thousands): Accrued restructuring charge as of December 31, 2012 $ 5,679 Accretion expense 137 Restructuring charge adjustments (4,837 ) Cash payments (979 ) Accrued restructuring charge as of December 31, 2013 $ —

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events TelecityGroup Acquisition On January 15, 2016, the Company completed the previously announced acquisition of the entire issued share capital of Telecity Group plc (“TelecityGroup”) (the “Transaction”). As a result of the Transaction, TelecityGroup has become a wholly-owned subsidiary of Equinix. Under the transaction, the Company acquired all outstanding common shares of TelecityGroup for 572.5 pence in cash and 0.0336 new shares of the Company’s common stock for each TelecityGroup’s share for a total purchase price of approximately $1,683,000,000 in cash and 6,853,500 shares of Equinix common stock valued at approximately $2,078,000,000 based on the Company’s share price on January 15, 2016. This amount excludes any value attributed to the Telecity employee equity awards assumed. TelecityGroup’s operating results will be reported in the EMEA region following the date of acquisition. The purchase price allocation for the acquisition is not yet complete. As a result, the fair value of assets acquired and liabilities assumed are still being appraised by a third-party and have not yet been finalized. Dividends On February 18, 2016 , the Company's Board of Directors declared a quarterly cash dividend of $1.75 per share, which is payable on March 23, 2016 to the Company’s common stockholders of record as of the close of business on March 9, 2016 . Debt In January 2016, the Company terminated its bridge credit agreement for a principal amount of £875,000,000 or approximately $1,289,000,000 related to the TelecityGroup acquisition. In January 2016, the Company borrowed $250,000,000 from its USD Term Loan B Commitment and £300,000,000 , or approximately $442,020,000 at the exchange rate in effect on December 31, 2015 from its Sterling Term Loan B Commitment to fund the TelecityGroup acquisition. Real estate In February 2016, the Company sold a parcel of land in San Jose, California, with a sales price of approximately $23,557,000 .

Quarterly Financial Information

Quarterly Financial Information	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information	Quarterly Financial Information (Unaudited) The Company believes that period-to-period comparisons of its financial results should not be relied upon as an indication of future performance. The Company’s revenues and results of operations have been subject to significant fluctuations, particularly on a quarterly basis, and the Company’s revenues and results of operations could fluctuate significantly quarter-to-quarter and year-to-year. Significant quarterly fluctuations in revenues will cause fluctuations in the Company’s cash flows and the cash and cash equivalents and accounts receivable accounts on the Company’s consolidated balance sheet. Causes of such fluctuations may include the volume and timing of new orders and renewals, the timing of the opening of new IBX data centers, the sales cycle for the Company’s offerings, the introduction of new offerings, changes in prices and pricing models, trends in the Internet infrastructure industry, general economic conditions, extraordinary events such as acquisitions or litigation and the occurrence of unexpected events. The unaudited quarterly financial information presented below has been prepared by the Company and reflects all adjustments, consisting only of normal recurring adjustments, which in the opinion of management are necessary to present fairly the financial position and results of operations for the interim periods presented. The following tables present selected quarterly information (in thousands, except per share data): 2015 Quarter Ended March 31 June 30 September 30 December 31 Revenues $ 643,174 $ 665,582 $ 686,649 $ 730,462 Gross profit 344,861 349,825 361,181 378,494 Net income (loss) attributable to Equinix 76,452 59,459 41,132 10,731 Comprehensive income (loss) attributable to Equinix (59,141 ) 104,323 (23,707 ) (10,317 ) EPS attributable to Equinix Basic EPS 1.35 1.04 0.72 0.18 Diluted EPS 1.34 1.03 0.71 0.18 2014 Quarter Ended March 31 June 30 September 30 December 31 Revenues $ 580,053 $ 605,161 $ 620,441 $ 638,121 Gross profit 292,528 312,302 316,389 324,672 Net income (loss) attributable to Equinix 41,387 11,328 42,841 (355,103 ) Comprehensive income (loss) attributable to Equinix 55,329 33,640 (97,814 ) (450,067 ) EPS attributable to Equinix Basic EPS 0.83 0.22 0.81 (6.42 ) Diluted EPS 0.81 0.22 0.79 (6.42 )

Schedule III Real Estate and Ac

Schedule III Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2015
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III Real Estate and Accumulated Depreciation	SCHEDULE III- SCHEDULE OF REAL ESTATE AND ACCUMULATED DEPRECIATION DECEMBER 31, 2015 (Dollars in thousands) Initial Costs to Company (1) Costs Capitalized Subsequent to Acquisition or Lease Total Costs Encumbrances Land Buildings and Improvements (2) Land Buildings and Improvements (2) Land Buildings and Improvements (2) Accumulated Depreciation Date of Construction Date of Acquisition or Lease (3) Americas: AT1 ATLANTA — — — — 95,053 — 95,053 (26,396) N/A 2010 AT2 ATLANTA — — — — 41,648 — 41,648 (13,454) N/A 2010 AT3 ATLANTA — — — — 3,538 — 3,538 (875) N/A 2010 BO1 BOSTON (METRO) — — — — 11,261 — 11,261 (5,264) N/A 2010 CH1 CHICAGO (METRO) — — — — 153,239 — 153,239 (94,134) 2001 1999 CH2 CHICAGO (METRO) — — — — 96,664 — 96,664 (43,580) 2005 2005 CH3 CHICAGO (METRO) — 9,759 — 352 222,935 10,111 222,935 (78,240) 2007 2006 CH4 CHICAGO (METRO) — — — — 21,025 — 21,025 (6,520) 2010 2009 DA1 DALLAS — — — — 72,470 — 72,470 (44,727) 2000 2000 DA2 DALLAS — — — — 77,185 — 77,185 (13,327) 2011 2010 DA3 DALLAS — — — — 84,048 — 84,048 (21,349) N/A 2010 DA4 DALLAS — — — — 16,674 — 16,674 (6,672) N/A 2010 DA6 DALLAS — — 20,522 — 78,386 — 98,908 (6,942) 2013 2012 DA7 DALLAS — — — — 24,525 — 24,525 (177) 2015 2015 DC1 WASHINGTON, DC (METRO) — — — — 1,520 — 1,520 (197) 2007 1999 DC2 WASHINGTON, DC (METRO) — — — 5,047 150,144 5,047 150,144 (123,646) 1999 1999 DC3 WASHINGTON, DC (METRO) — — 37,451 — 51,589 — 89,040 (42,295) 2004 2004 DC4 WASHINGTON, DC (METRO) — 1,906 7,272 — 70,087 1,906 77,359 (42,918) 2007 2005 DC5 WASHINGTON, DC (METRO) — 1,429 4,983 — 86,875 1,429 91,858 (47,548) 2008 2005 DC6 WASHINGTON, DC (METRO) — 1,429 5,082 — 85,311 1,429 90,393 (30,425) 2010 2005 DC7 WASHINGTON, DC (METRO) — — — — 15,348 — 15,348 (9,135) N/A 2010 DC8 WASHINGTON, DC (METRO) — — — — 4,684 — 4,684 (4,532) N/A 2010 DC10 WASHINGTON, DC (METRO) — — 44,601 — 67,402 — 112,003 (20,225) 2012 2011 DC11 WASHINGTON, DC (METRO) — 1,429 5,082 — 114,865 1,429 119,947 (13,880) 2013 2005 DE1 DENVER (METRO) — — — — 8,322 — 8,322 (4,966) N/A 2010 Initial Costs to Company (1) Costs Capitalized Subsequent to Acquisition or Lease Total Costs Encumbrances Land Buildings and Improvements (2) Land Buildings and Improvements (2) Land Buildings and Improvements (2) Accumulated Depreciation Date of Construction Date of Acquisition or Lease (3) LA1 LOS ANGELES — — — — 107,511 — 107,511 (55,793) 2000 1999 LA2 LOS ANGELES — — — — 11,367 — 11,367 (9,566) 2001 2000 LA3 EL SEGUNDO — — 34,727 3,959 18,950 3,959 53,677 (39,778) 2005 2005 LA4 EL SEGUNDO — 19,333 137,630 — 27,997 19,333 165,627 (51,666) 2009 2009 MI2 MIAMI (METRO) — — — — 21,510 — 21,510 (9,439) N/A 2010 MI3 MIAMI (METRO) — — — — 28,869 — 28,869 (5,750) 2012 2012 NY1 NEWARK — — — — 79,447 — 79,447 (39,430) 1999 1999 NY2 NEW YORK CITY (METRO) — — — 17,859 187,115 17,859 187,115 (115,457) 2002 2000 NY4 NEW YORK CITY (METRO) — — — — 322,863 — 322,863 (140,124) 2007 2006 NY5 NEW YORK CITY (METRO) — — — — 182,025 — 182,025 (30,405) 2012 2010 NY6 NEW YORK CITY (METRO) — — — — 72,901 — 72,901 (2,517) 2015 2010 NY7 NEW YORK CITY (METRO) — — 24,660 — 137,080 — 161,740 (75,835) N/A 2010 NY8 NEW YORK CITY (METRO) — — — — 11,515 — 11,515 (4,979) N/A 2010 NY9 NEW YORK CITY (METRO) — — — — 51,727 — 51,727 (22,897) N/A 2010 PH1 PHILADELPHIA — — — — 47,463 — 47,463 (7,790) N/A 2010 SE2 SEATTLE — — — — 27,359 — 27,359 (16,368) N/A 2010 SE3 SEATTLE — — 1,760 — 93,457 — 95,217 (16,852) 2013 2011 SV1 SILICON VALLEY (METRO) — — — 15,545 156,304 15,545 156,304 (100,156) 1999 1999 SV2 SILICON VALLEY (METRO) — — — — 145,920 — 145,920 (60,670) 2003 2003 SV3 SILICON VALLEY (METRO) — — — — 42,971 — 42,971 (36,280) 2004 1999 SV4 SILICON VALLEY (METRO) — — — — 24,231 — 24,231 (17,247) 2005 2005 SV5 SILICON VALLEY (METRO) — 6,238 98,991 — 86,932 6,238 185,923 (32,645) 2010 2010 SV6 SILICON VALLEY (METRO) — — 15,585 — 21,380 — 36,965 (18,663) N/A 2010 SV8 SILICON VALLEY (METRO) — — — — 44,240 — 44,240 (17,178) N/A 2010 SV12 SILICON VALLEY (METRO) — 20,535 — — 1,892 20,535 1,892 — 2015 2015 TR1 TORONTO, CANADA — — — — 86,705 — 86,705 (15,450) N/A 2010 TR2 TORONTO, CANADA — — 20,499 — 70,383 — 90,882 (3,007) 2015 2015 RJ1 RIO DE JANEIRO, BRAZIL — — — — 20,845 — 20,845 (12,042) 2011 2011 RJ2 RIO DE JANEIRO, BRAZIL — — 1,654 — 27,347 — 29,001 (4,268) 2013 2012 SP1 SÃO PAULO, BRAZIL — — 8,373 — 17,846 — 26,219 (12,865) 2011 2011 SP2 SÃO PAULO, BRAZIL — — — — 53,783 — 53,783 (17,990) 2011 2011 Initial Costs to Company (1) Costs Capitalized Subsequent to Acquisition or Lease Total Costs Encumbrances Land Buildings and Improvements (2) Land Buildings and Improvements (2) Land Buildings and Improvements (2) Accumulated Depreciation Date of Construction Date of Acquisition or Lease (3) DC12 AND other future IBX (4) — 24,870 4,608 — 13,666 24,870 18,274 (1,897) Various Various EMEA: AM1 AMSTERDAM, THE NETHERLANDS — — — — 45,887 — 45,887 (20,343) 2008 2008 AM2 AMSTERDAM, THE NETHERLANDS — — — — 54,298 — 54,298 (15,143) 2010 2008 AM3 AMSTERDAM, THE NETHERLANDS — — 27,977 — 90,043 — 118,020 (15,734) 2012 2011 DU1 DÜSSELDORF, GERMANY — — — — 21,062 — 21,062 (17,219) 2001 2000 DU2 DÜSSELDORF, GERMANY — — — — 204 — 204 (157) 2010 2010 DX1 DUBAI, UNITED ARAB EMIRATES — — — — 22,478 — 22,478 (3,897) 2012 2008 EN1 ENSCHEDE, THE NETHERLANDS — — — — 20,135 — 20,135 (12,188) 2008 2008 FR1 FRANKFURT (METRO), GERMANY — — — — 6,751 — 6,751 (6,401) N/A 2007 FR2 FRANKFURT (METRO), GERMANY — — — 11,547 183,112 11,547 183,112 (61,215) N/A 2007 FR3 FRANKFURT (METRO), GERMANY — — — 2,031 4,666 2,031 4,666 (1,000) N/A 2007 FR4 FRANKFURT (METRO), GERMANY — 11,953 9,609 — 19,431 11,953 29,040 (11,340) 2009 2009 FR5 FRANKFURT (METRO), GERMANY 32,255 — — 3,836 106,889 3,836 106,889 (16,122) 2012 2012 GV1 GENEVA (METRO), SWITZERLAND — — — — 5,497 — 5,497 (4,206) 2004 2004 GV2 GENEVA (METRO), SWITZERLAND — — — — 20,757 — 20,757 (11,210) 2010 2009 LD1 LONDON (METRO), UNITED KINGDOM — — — — 2,736 — 2,736 (2,389) 2000 2000 LD3 LONDON (METRO), UNITED KINGDOM — — — — 17,350 — 17,350 (10,448) 2005 2000 LD4 LONDON (METRO), UNITED KINGDOM — — 27,575 — 64,854 — 92,429 (32,697) 2007 2007 LD5 LONDON (METRO), UNITED KINGDOM — — 19,639 — 185,242 — 204,881 (48,798) 2010 2010 LD6 LONDON (METRO), UNITED KINGDOM — — — — 91,946 — 91,946 (2,729) 2015 2013 ML1 MILAN (METRO), ITALY — — — — 832 — 832 (549) 2011 2011 MU1 MUNICH, GERMANY — — — — 11,334 — 11,334 (7,679) N/A 2007 MU2 MUNICH, GERMANY — — — — 69 — 69 (44) N/A 2006 MU3 MUNICH, GERMANY — — — — 4,493 — 4,493 (3,811) 2010 2010 PA1 PARIS (METRO), FRANCE — — — — 21,338 — 21,338 (16,664) N/A 2007 PA2 PARIS (METRO), FRANCE — — — — 39,162 — 39,162 (22,006) N/A 2007 PA3 PARIS (METRO), FRANCE — — 30,574 — 85,720 — 116,294 (42,232) 2010 2008 PA4 PARIS (METRO), FRANCE — 1,756 9,811 — 123,424 1,756 133,235 (20,488) 2012 2011 ZH1 ZURICH (METRO), SWITZERLAND — — — — 5,573 — 5,573 (4,330) N/A 2007 Initial Costs to Company (1) Costs Capitalized Subsequent to Acquisition or Lease Total Costs Encumbrances Land Buildings and Improvements (2) Land Buildings and Improvements (2) Land Buildings and Improvements (2) Accumulated Depreciation Date of Construction Date of Acquisition or Lease (3) ZH2 ZURICH (METRO), SWITZERLAND — — — — 4,893 — 4,893 (2,490) 2003 2002 ZH4 ZURICH (METRO), SWITZERLAND — — 11,501 — 23,062 — 34,563 (13,034) 2010 2009 ZH5 ZURICH (METRO), SWITZERLAND — — — — 39,006 — 39,006 (8,011) 2013 2009 ZW1 ZWOLLE, THE NETHERLANDS — — — — 7,103 — 7,103 (3,633) 2008 2008 OTHERS — — — — 2,112 — 2,112 (1,776) Various Various Asia-Pacific: HK1 HONG KONG, CHINA — — — — 97,905 — 97,905 (53,083) N/A 2003 HK2 HONG KONG, CHINA — — — — 181,827 — 181,827 (34,847) 2011 2010 HK3 HONG KONG, CHINA — — — — 132,765 — 132,765 (33,892) N/A 2012 HK4 HONG KONG, CHINA — — — — 6,698 — 6,698 (3,149) N/A 2012 ME1 MELBOURNE, AUSTRALIA — 15,502 — — 61,216 15,502 61,216 (2,291) 2013 2013 OS1 OSAKA, JAPAN — — 14,459 — 21,861 — 36,320 (4,711) 2013 2013 OS2 OSAKA, JAPAN — — 100 — — — 100 (7) N/A 2015 SG1 SINGAPORE — — — — 158,755 — 158,755 (83,970) N/A 2003 SG2 SINGAPORE — — — — 251,089 — 251,089 (78,714) 2008 2008 SG3 SINGAPORE — — 35,614 — 90,929 — 126,543 (3,293) 2013 2013 SH2 SHANGHAI, CHINA — — — — 3,315 — 3,315 (743) 2012 2012 SH3 SHANGHAI, CHINA — — 7,557 — 5,440 — 12,997 (3,064) 2012 2012 SH4 SHANGHAI, CHINA — — — — 1,718 — 1,718 (1,164) 2012 2012 SH5 SHANGHAI, CHINA — — 12,068 — 19,571 — 31,639 (4,292) 2012 2012 SY1 SYDNEY, AUSTRALIA — — — — 23,894 — 23,894 (12,181) N/A 2003 SY2 SYDNEY, AUSTRALIA — — 3,113 — 32,205 — 35,318 (16,660) 2008 2008 SY3 SYDNEY, AUSTRALIA — — 8,804 — 130,183 — 138,987 (34,199) 2010 2010 SY4 SYDNEY, AUSTRALIA — — — — 39,113 — 39,113 — 2015 2014 TY1 TOKYO, JAPAN — — — — 16,651 — 16,651 (8,795) 2000 2000 TY2 TOKYO, JAPAN — — — — 61,024 — 61,024 (47,119) 2007 2006 TY3 TOKYO, JAPAN — — — — 65,673 — 65,673 (18,224) 2010 2010 TY4 TOKYO, JAPAN — — — — 41,256 — 41,256 (6,375) 2012 2012 TY5 TOKYO, JAPAN — — 99 — 14,366 — 14,465 — 2014 2014 TY6 TOKYO, JAPAN — — 36,877 — 4,652 — 41,529 (853) N/A 2015 Initial Costs to Company (1) Costs Capitalized Subsequent to Acquisition or Lease Total Costs Encumbrances Land Buildings and Improvements (2) Land Buildings and Improvements (2) Land Buildings and Improvements (2) Accumulated Depreciation Date of Construction Date of Acquisition or Lease (3) TY7 TOKYO, JAPAN — — 12,806 — 1,321 — 14,127 (464) N/A 2015 TY8 TOKYO, JAPAN — — 52,338 — 6,593 — 58,931 (1,672) N/A 2015 TY9 TOKYO, JAPAN — — 103,718 — 893 — 104,611 (2,169) N/A 2015 TY10 TOKYO, JAPAN — — 67,922 — 329 — 68,251 (791) N/A 2015 OTHERS — 7,631 — — 21,203 7,631 21,203 (2,515) Various Various TOTAL LOCATIONS $32,255 $123,770 $965,641 $60,176 $6,722,303 $183,946 $7,687,944 $(2,595,648) (1) The initial cost was $0 if the lease of the respective IBX was classified as an operating lease. (2) Building and improvements include all fixed assets except for land. (3) Date of lease or acquisition represents the date the Company leased the facility or acquired the facility through purchase or acquisition. (4) Includes IBX DC12 and various other IBXs that are under initial development. The aggregate gross cost of the Company's properties for federal income tax purpose approximated $7,512,627,000 (unaudited) as of December 31, 2015. The following table reconciles the historical cost of the Company’s properties for financial reporting purposes for each of the years in the three-year period ended December 31, 2015. Gross Fixed Assets: 2015 2014 2013 Balance, beginning of period $ 7,006,695 $ 6,308,992 $ 5,220,450 Additions (acquisitions and improvements) 1,172,855 997,534 1,146,126 Disposals (9,295 ) (16,444 ) (14,864 ) Foreign currency transaction adjustments and others (298,365 ) (283,387 ) (42,720 ) Balance, end of year $ 7,871,890 $ 7,006,695 $ 6,308,992 Accumulated Depreciation: 2015 2014 2013 Balance, beginning of period $ (2,242,345 ) $ (1,904,311 ) $ (1,538,329 ) Additions (depreciation expense) (440,002 ) (418,407 ) (377,577 ) Disposals 7,396 16,038 12,804 Foreign currency transaction adjustments and others 79,303 64,335 (1,209 ) Balance, end of year $ (2,595,648 ) $ (2,242,345 ) $ (1,904,311 )

Nature of Business and Summar28

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation, Consolidation and Foreign Currency	Basis of Presentation, Consolidation and Foreign Currency The accompanying consolidated financial statements include the accounts of Equinix and its subsidiaries, including the acquisitions of Bit-isle Inc. ("Bit-isle) from November 2, 2015, Nimbo Technologies Inc. ("Nimbo") from January 14, 2015 and Frankfurt Kleyer 90 Carrier Hotel from October 1, 2013. All intercompany accounts and transactions have been eliminated in consolidation. Foreign exchange gains or losses resulting from foreign currency transactions, including intercompany foreign currency transactions, that are anticipated to be repaid within the foreseeable future, are reported within other income (expense) on the Company’s accompanying consolidated statements of operations. For additional information on the impact of foreign currencies to the Company’s consolidated financial statements, see “Accumulated Other Comprehensive Loss” in Note 11.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States ("U.S.") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to the allowance for doubtful accounts, fair values of financial instruments, intangible assets and goodwill, useful lives of intangible assets and property, plant and equipment, assets acquired and liabilities assumed from acquisitions, asset retirement obligations, restructuring charges, redemption value of redeemable non-controlling interests and income taxes. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable.
Cash, Cash Equivalents and Short-Term and Long-Term Investments	Cash, Cash Equivalents and Short-Term and Long-Term Investments The Company considers all highly liquid instruments with an original maturity from the date of purchase of three months or less to be cash equivalents. Cash equivalents consist of money market mutual funds and highly liquid debt securities of corporations and certificates of deposit with original maturities up to 90 days. Short-term investments generally consist of debt securities with original maturities of between 90 days and one year. Long-term investments consist of debt securities with original maturities greater than 365 days and publicly traded equity securities. The Company’s fixed income securities and publicly traded equity securities are classified as “available-for-sale” and are carried at fair value with unrealized gains and losses reported in stockholders’ equity as a component of other comprehensive income (loss). The cost of securities sold is based on the specific identification method. The Company reviews its investment portfolio quarterly to determine if any securities may be other-than-temporarily impaired due to increased credit risk, changes in industry or sector of a certain instrument or ratings downgrades.
Equity Method and Cost Method Investments	Equity method and cost method investments The Company's non-marketable securities are accounted under cost method accounting. The Company records the dividends declared by the investees in other income and expense in the consolidated statement of operations and records any dividends in excess of earnings as a reduction of cost of investment. The Company's other equity investments include private equity investments which are accounted under equity method accounting. The Company adjusts the carrying amount of an investment for its share of the earnings and losses of the investees and recognizes its share of income or loss in other income and expense in the consolidated statement of operations. The Company records cost method and equity method investments in other assets in the consolidated balance sheet. The Company reviews these investments periodically to determine if any investments may be other-than-temporarily impaired primarily based on the financial condition and near-term prospects of these companies and funds.
Financial Instruments and Concentration of Credit Risk	Financial Instruments and Concentration of Credit Risk Financial instruments which potentially subject the Company to concentrations of credit risk consist of cash, cash equivalents, short-term investments, long-term investments and accounts receivable. Risks associated with cash, cash equivalents, short-term investments and long-term investments are mitigated by the Company’s investment policy, which limits the Company’s investing to only those marketable securities rated at least A-1/P-1 Short Term Rating and A-/A3 Long Term Rating, as determined by independent credit rating agencies. Risk to the Company’s investment portfolio is further mitigated by its significant weighting in U.S. government securities in order to achieve REIT asset measure requirements. A significant portion of the Company’s customer base is comprised of businesses throughout the Americas. However, a portion of the Company’s revenues are derived from the Company’s EMEA and Asia-Pacific operations. The following table sets forth percentages of the Company’s revenues by geographic region for the years ended December 31: 2015 2014 2013 Americas 55 % 56 % 59 % EMEA 26 % 26 % 24 % Asia-Pacific 19 % 18 % 17 % No single customer accounted for greater than 10% of accounts receivable or revenues as of or for the years ended December 31, 2015, 2014 and 2013.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at the Company’s original cost or fair value for acquired property, plant and equipment. Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements and assets acquired under capital leases are amortized over the shorter of the lease term or the estimated useful life of the asset or improvement, unless they are considered integral equipment, in which case they are amortized over the lease term. Leasehold improvements acquired in a business combination are amortized over the shorter of the useful life of the assets or a term that includes required lease periods and renewals that are deemed to be reasonably assured at the date of acquisition. Leasehold improvements that are placed into service significantly after and not contemplated at or near the beginning of the lease term are amortized over the shorter of the useful life of the assets or a term that includes required lease periods and renewals that are deemed to be reasonably assured at the date the leasehold improvements are purchased. The Company’s estimated useful lives of its property, plant and equipment are as follows: Core systems 3-25 years Buildings 12-50 years Leasehold improvements 12-40 years Construction in progress N/A Personal Property 3-10 years During the three months ended December 31, 2014, the Company revised the estimated useful lives of certain of its property, plant and equipment as part of a review of the related assumptions. As a result, the Company recorded an insignificant amount of higher depreciation expense for the quarter ended December 31, 2014 due to the reduction of the estimated useful lives of certain of its property, plant and equipment. This change was accounted for as a change in accounting estimate on a prospective basis effective October 1, 2014 under the accounting standard for change in accounting estimates. The Company did not revise the estimated useful lives of the property, plant and equipment during the years ended December 31, 2015 and 2013. The Company’s construction in progress includes direct and indirect expenditures for the construction and expansion of IBX data centers and is stated at original cost. The Company has contracted out substantially all of the construction and expansion efforts of its IBX data centers to independent contractors under construction contracts. Construction in progress includes costs incurred under construction contracts including project management services, engineering and schematic design services, design development, construction services and other construction-related fees and services. In addition, the Company has capitalized interest costs during the construction phase. Once an IBX data center or expansion project becomes operational, these capitalized costs are allocated to certain property, plant and equipment categories and are depreciated over the estimated useful life of the underlying assets.
Asset Retirement Costs	Asset Retirement Costs The fair value of a liability for an asset retirement obligation is recognized in the period in which it is incurred. The associated retirement costs are capitalized and included as part of the carrying value of the long-lived asset and amortized over the useful life of the asset. Subsequent to the initial measurement, the Company accretes the liability in relation to the asset retirement obligations over time and the accretion expense is recorded as a cost of revenue. The Company’s asset retirement obligations are primarily related to its IBX data centers, of which the majority are leased under long-term arrangements, and, in certain cases, are required to be returned to the landlords in their original condition. The majority of the Company’s IBX data center leases have been subject to significant development by the Company in order to convert them from, in most cases, vacant buildings or warehouses into IBX data centers. The majority of the Company’s IBX data centers’ initial lease terms expire at various dates ranging from 2017 to 2065 and most of them enable the Company to extend the lease terms.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The Company has three reportable segments comprised of the 1) Americas, 2) EMEA and 3) Asia-Pacific geographic regions, which the Company also determined are its reporting units. As of December 31, 2015, the Company had goodwill attributable to its Americas, EMEA and Asia-Pacific reporting units. In 2014, the Company changed its annual goodwill impairment testing date from November 30 th to October 31 st of each year, commencing on October 31, 2014, to better align its annual goodwill impairment test with the timing of the Company’s budgeting and forecasting process. The Company has the option to assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value. If, after assessing the qualitative factors, the Company determines that it is not more likely than not that the fair value of a reporting unit is less than its carrying value, then performing the two-step impairment test is unnecessary. However, if the Company concludes otherwise, then it is required to perform the first step of the two-step goodwill impairment test. The first step, identifying a potential impairment, compares the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be conducted; otherwise, no further steps are necessary as no potential impairment exists. The second step, measuring the impairment loss, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. Any excess of the reporting unit goodwill carrying value over the respective implied fair value is recognized as an impairment loss. The Company assessed qualitative and quantitative factors during the fourth quarter of 2015 to determine whether it was more likely than not that the fair value of its Americas reporting unit, EMEA reporting unit and Asia-Pacific reporting unit was less than its carrying value. Qualitative factors considered in the assessment include industry and market conditions, overall financial performance, and other relevant events and factors affecting the reporting unit. Additionally, as part of this analysis, the Company may perform a quantitative analysis to support the qualitative factors by evaluating sensitivities to assumptions and inputs used in measuring a reporting unit's fair value. Prior to 2015, the Company performed the first step of the two-step goodwill impairment test for its Americas, EMEA and Asia-Pacific reporting units during the quarter ended December 31, 2014 and 2013. In order to determine the fair value of each reporting unit, the Company utilizes the discounted cash flow and market methods. The Company had used both methods in its goodwill impairment tests as it believes both methods, in conjunction with each other, provide a reasonable estimate of the determination of fair value of each reporting unit – the discounted cash flow method being specific to anticipated future results of the reporting unit and the market method, which is based on the Company’s market sector including its competitors. The assumptions supporting the discounted cash flow method was determined using the Company’s best estimates as of the date of the impairment review. As of October 31, 2015, the Company concluded that it was more likely than not that goodwill attributed to the Company’s Americas, EMEA and Asia-Pacific reporting units was not impaired as the fair value of each reporting unit exceeded the carrying value of its respective reporting unit, including goodwill. In addition, the Company concluded that no events occurred or circumstances changed subsequent to October 31, 2015 through December 31, 2015 that would more likely than not reduce the fair value of the Americas, EMEA and Asia-Pacific reporting units below its carrying value. The Company has performed various sensitivity analyses on certain of the assumptions used in the discounted cash flow method, such as forecasted revenues and discount rate, and notes that no reasonably possible changes would reduce the fair value of the reporting unit to such a level that would cause an impairment charge. Impairment assessments inherently involve judgment as to assumptions about expected future cash flows and the impact of market conditions on those assumptions. Future events and changing market conditions may impact the Company’s assumptions as to prices, costs, growth rates or other factors that may result in changes in the Company’s estimates of future cash flows. Although the Company believes the assumptions it used in testing for impairment are reasonable, significant changes in any one of the Company’s assumptions could produce a significantly different result. Indicators of potential impairment that might lead the Company to perform interim goodwill impairment assessments include significant and unforeseen customer losses, a significant adverse change in legal factors or in the business climate, a significant adverse action or assessment by a regulator, a significant stock price decline or unanticipated competition. For further information on goodwill and other intangible assets, see Note 5 below.
Debt Issuance Costs	Debt Issuance Costs Loan fees and costs are capitalized and are amortized over the life of the related loans based on the effective interest method. Such amortization is included as a component of interest expense. The Company adopted Accounting Standards Update 2015-03, Interest - Imputation of Interest (“ASU 2015-03”), and Accounting Standards Update 2015-15, Interest - Imputation of Interest Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements (“ASU 2015-15”), during the year ended December 31, 2015. In accordance with ASU 2015-03, loan fees and costs associated with outstanding debt have been classified as a reduction of debt in the accompanying consolidated balance sheets. In accordance with ASU 2015-15, loans fees and costs associated with the line-of-credit arrangements have been classified as other assets in the accompanying consolidated balance sheets.
Derivatives and Hedging Activities	Derivatives and Hedging Activities The Company recognizes all derivatives on the consolidated balance sheet at fair value. The accounting for changes in the value of a derivative depends on whether the contract is for trading purposes or has been designated and qualifies for hedge accounting. In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. In order for a derivative to be designated as a hedge, there must be documentation of the risk management objective and strategy, including identification of the hedging instrument, the hedged item and the risk exposure, and how effectiveness is to be assessed prospectively and retrospectively. Foreign currency gains or losses associated with derivatives that do not qualify for hedge accounting are recorded within other income (expense), net in the Company’s consolidated statements of operations, with the exception of foreign currency embedded derivatives contained in certain of the Company’s customer contracts (see “Revenue Recognition” below), which are recorded within revenues in the Company’s consolidated statements of operations. To assess effectiveness of derivatives that qualify for hedge accounting, the Company uses a regression analysis. The extent to which a hedging instrument has been and is expected to continue to be effective at achieving offsetting changes in cash flows is assessed and documented at least quarterly. Any ineffectiveness is reported in current-period earnings. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued. For qualifying cash flow hedges, the effective portion of the change in the fair value of the derivative is recorded in other comprehensive income (loss) and recognized in the consolidated statements of operations when the hedged cash flows affect earnings. The ineffective portion of cash flow hedges is immediately recognized in earnings. If the hedge relationship is terminated, then the change in fair value of the derivative recorded in other comprehensive income (loss) is recognized in earnings when the cash flows that were hedged occur, consistent with the original hedge strategy. For hedge relationships discontinued because the forecasted transaction is not expected to occur according to the original strategy, any related derivative amounts recorded in other comprehensive income (loss) are immediately recognized in earnings. The Company does not use derivatives for speculative or trading purposes. For further information on derivatives and hedging activities, see Note 6 below.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The carrying value of the Company’s cash and cash equivalents, short-term and long-term investments represent their fair value, while the Company’s accounts receivable, accounts payable and accrued expenses and accrued property, plant and equipment approximate their fair value due primarily to the short-term maturity of the related instruments. The fair value of the Company’s debt, which is traded in the public debt market, is based on quoted market prices. The fair value of the Company’s debt, which is not publicly traded, is estimated by considering the Company’s credit rating, current rates available to the Company for debt of the same remaining maturities and terms of the debt. Fair Value Measurements The Company measures and reports certain financial assets and liabilities at fair value on a recurring basis, including its investments in money market funds and available-for-sale debt investments in other public companies, governmental units and other agencies, publicly traded equity securities and derivatives. The Company also follows the accounting standard for the measurement of fair value for non-financial assets and liabilities on a nonrecurring basis. These include: • Non-financial assets and non-financial liabilities initially measured at fair value in a business combination or other new basis event, but not measured at fair value in subsequent reporting periods; • Reporting units and non-financial assets and non-financial liabilities measured at fair value for goodwill impairment tests; • Indefinite-lived intangible assets measured at fair value for impairment assessments; • Non-financial long-lived assets or asset groups measured at fair value for impairment assessments or disposal; • Asset retirement obligations initially measured at fair value but not subsequently measured at fair value; and • Non-financial liabilities associated with exit or disposal activities initially measured at fair value but not subsequently measured at fair value. For further information on fair value measurements, see Note 7 below.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable such as a significant decrease in market price of a long-lived asset, a significant adverse change in legal factors or business climate that could affect the value of a long-lived asset or a continuous deterioration of the Company’s financial condition. Recoverability of assets to be held and used is assessed by comparing the carrying amount of an asset to estimated undiscounted future net cash flows expected to be generated by the asset. If the carrying amount of the asset exceeds its estimated discounted future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. The Company did not record any impairment charges related to its long-lived assets during the years ended December 31, 2015, 2014 and 2013.
Revenue Recognition	Revenue Recognition Equinix derives more than 90% of its revenues from recurring revenue streams, consisting primarily of (1) colocation, which includes the licensing of cabinet space and power; (2) interconnection offerings, such as cross connects and Equinix Exchange ports; (3) managed infrastructure services and (4) other revenues consisting of rental income from tenants or subtenants. The remainder of the Company’s revenues are from non-recurring revenue streams, such as installation revenues, professional services, contract settlements and equipment sales. Revenues from recurring revenue streams are generally billed monthly and recognized ratably over the term of the contract, generally one to three years for IBX data center colocation customers. Non-recurring installation fees, although generally paid in a lump sum upon installation, are deferred and recognized ratably over the period the customer is expected to benefit from the installation. Professional service fees are recognized in the period in which the services were provided and represent the culmination of a separate earnings process as long as they meet the criteria for separate recognition under the accounting standard related to revenue arrangements with multiple deliverables. Revenue from bandwidth and equipment sales is recognized on a gross basis in accordance with the accounting standard related to reporting revenue gross as a principal versus net as an agent, primarily because the Company acts as the principal in the transaction, takes title to products and services and bears inventory and credit risk. To the extent the Company does not meet the criteria for recognizing bandwidth and equipment services as gross revenue, the Company records the revenue on a net basis. Revenue from contract settlements, when a customer wishes to terminate their contract early, is generally recognized on a cash basis, when no remaining performance obligations exist, to the extent that the revenue has not previously been recognized. The Company guarantees certain service levels, such as uptime, as outlined in individual customer contracts. To the extent that these service levels are not achieved, the Company reduces revenue for any credits given to the customer as a result. The Company generally has the ability to determine such service level credits prior to the associated revenue being recognized, and historically, these credits have generally not been significant. There were no significant service level credits issued during the years ended December 31, 2015, 2014 and 2013. Revenue is recognized only when the service has been provided and when there is persuasive evidence of an arrangement, the fee is fixed or determinable and collection of the receivable is reasonably assured. It is the Company’s customary business practice to obtain a signed master sales agreement and sales order prior to recognizing revenue in an arrangement. Taxes collected from customers and remitted to governmental authorities are reported on a net basis and are excluded from revenue. As a result of certain customer agreements being priced in currencies different from the functional currencies of the parties involved, under applicable accounting rules, the Company is deemed to have foreign currency forward contracts embedded in these contracts. The Company refers to these as foreign currency embedded derivatives (see Note 6). These instruments are separated from their host contracts and held on the Company’s consolidated balance sheet at their fair value. The majority of these foreign currency embedded derivatives arise in certain of the Company’s subsidiaries where the local currency is the subsidiary’s functional currency and the customer contract is denominated in the U.S. dollar. Changes in their fair values are recognized within revenues in the Company’s consolidated statements of operations. The Company assesses collectability based on a number of factors, including past transaction history with the customer and the credit-worthiness of the customer. The Company generally does not request collateral from its customers although in certain cases the Company obtains a security interest in a customer’s equipment placed in its IBX data centers or obtains a deposit. If the Company determines that collection of a fee is not reasonably assured, the fee is deferred and revenue is recognized at the time collection becomes reasonably assured, which is generally upon receipt of cash. In addition, the Company also maintains an allowance for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments for which the Company had expected to collect the revenues. If the financial condition of the Company’s customers were to deteriorate or if they became insolvent, resulting in an impairment of their ability to make payments, greater allowances for doubtful accounts may be required. Management specifically analyzes accounts receivable and current economic news and trends, historical bad debts, customer concentrations, customer credit-worthiness and changes in customer payment terms when evaluating revenue recognition and the adequacy of the Company’s reserves. Any amounts that were previously recognized as revenue and subsequently determined to be uncollectible are charged to bad debt expense included in general and administrative expense in the consolidated statements of operations. A specific bad debt reserve of up to the full amount of a particular invoice value is provided for certain problematic customer balances. An additional reserve is established for all other accounts based on the age of the invoices and an analysis of historical credits issued. Delinquent account balances are written-off after management has determined that the likelihood of collection is not probable.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that are expected more likely than not to be realized in the future. A tax benefit from an uncertain income tax position may be recognized in the financial statements only if it is more likely than not that the position is sustainable, based solely on its technical merits and consideration of the relevant taxing authority’s widely understood administrative practices and precedents. The Company began operating as a REIT for federal income tax purposes effective January 1, 2015. In May 2015, the Company received a favorable private letter ruling (“PLR”) from the U.S. Internal Revenue Service (“IRS”). As a result, the Company may deduct the distributions made to its shareholders from taxable income generated by the Company's Qualified REIT Subsidiaries (“QRSs”). The Company’s dividends paid deduction generally eliminates the U.S. taxable income of the Company's QRSs, resulting in no U.S. income tax due. However, the Taxable REIT Subsidiaries (“TRSs”) will continue to be subject to income taxes on any taxable income generated by them. In addition, the foreign operations of the Company will continue to be subject to local income taxes regardless of whether the foreign operations are operated as a QRS or TRS. The Company recognizes interest and penalties related to unrecognized tax benefits within income tax benefit (expense) in the consolidated statements of operations.
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation cost is measured at the grant date for all stock-based awards made to employees and directors based on the fair value of the award and is recognized as expense over the requisite service period, which is generally the vesting period. The Company grants restricted stock units to its employees and these equity awards generally have only a service condition. The Company grants restricted stock units to its executives and these awards generally have a service and performance condition or a service and market condition. To date, any performance conditions contained in an equity award are tied to the financial performance of the Company or a specific region of the Company. The Company assesses the probability of meeting these performance conditions on a quarterly basis. The majority of the Company’s equity awards vest over four years, although certain of the equity awards for executives vest over a range of two to four years. The valuation of restricted stock units with only a service condition or a service and performance condition requires no significant assumptions as the fair value for these types of equity awards is based solely on the fair value of the Company’s stock price on the date of grant. The Company uses a Monte Carlo simulation option-pricing model to determine the fair value of restricted stock units with a service and market condition. The Company uses the Black-Scholes option-pricing model to determine the fair value of its employee stock purchase plan. The determination of the fair value of shares purchased under the employee stock purchase plan is affected by assumptions regarding a number of complex and subjective variables including the Company’s expected stock price volatility over the term of the awards and actual and projected employee stock purchase behaviors. The Company estimated the expected volatility by using the average historical volatility of its common stock that it believed was best representative of future volatility. The risk-free interest rate used was based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected term of the equity awards. The expected dividend rate used in 2015 was based on average dividend yields and the expected dividend rate used prior to 2015 was zero as the Company did not anticipate paying dividends. The expected term used was equal to the term of each purchase window. The accounting standard for stock-based compensation does not allow the recognition of unrealized tax benefits associated with the tax deductions in excess of the compensation recorded (excess tax benefit) until the excess tax benefit is realized (i.e., reduces taxes payable). The Company recognizes the benefit from stock-based compensation in equity when the excess tax benefit is realized by following the “with-and-without” approach. For further information on stock-based compensation, see Note 12 below.
Foreign Currency Translation	Foreign Currency Translation The financial position of foreign subsidiaries is translated using the exchange rates in effect at the end of the period, while income and expense items are translated at average rates of exchange during the period. Gains or losses from translation of foreign operations where the local currency is the functional currency are included as other comprehensive income (loss). The net gains and losses resulting from foreign currency transactions are recorded in net income (loss) in the period incurred and reported within other income and expense. Certain inter-company balances are designated as long-term. Accordingly, exchange gains and losses associated with these long-term inter-company balances are recorded as a component of other comprehensive income (loss), along with translation adjustments. How the U.S. dollar performs against certain of the currencies of the foreign countries in which the Company operates can have a significant impact to the Company. Strengthening and weakening of the U.S. dollar against theses currencies has significantly impacted the Company’s consolidated balance sheets (as evidenced in the Company’s foreign currency translation loss), as well as its consolidated statements of operations as amounts denominated in foreign currencies can increase or decrease the Company’s revenues and expenses. To the extent that the U.S. dollar strengthens or weakens further, this will continue to impact the Company’s consolidated balance sheets and consolidated statements of operations including the amount of revenue that the Company reports in future periods.
Earnings Per Share	Earnings Per Share The Company computes basic and diluted EPS for net income (loss) attributable to the Company. Basic EPS is computed using net income (loss) attributable to the Company and the weighted-average number of common shares outstanding. Diluted EPS is computed using net income attributable to the Company, adjusted for interest expense as a result of the assumed conversion of the Company’s 3.00% Convertible Subordinated Notes and 4.75% Convertible Subordinated Notes, if dilutive, and the weighted-average number of common shares outstanding plus any dilutive potential common shares outstanding. Dilutive potential common shares include the assumed exercise, vesting and issuance activity of employee equity awards using the treasury stock method, as well as shares issuable upon the assumed conversion of the 3.00% Convertible Subordinated Notes and 4.75% Convertible Subordinated Notes.
Redeemable Non-Controlling Interests	Redeemable Non-Controlling Interests Non-controlling interests in subsidiaries that are redeemable for cash or other assets outside of the Company’s control are classified as mezzanine equity, outside of equity and liabilities, and are adjusted to fair value on each balance sheet date. The resulting changes in fair value of the estimated redemption amount, increases or decreases, are recorded with corresponding adjustments against retained earnings or, in the absence of retained earnings, additional paid-in-capital For further information on redeemable non-controlling interests, see Note 10 below.
Treasury Stock	Treasury Stock The Company accounts for treasury stock under the cost method. When treasury stock is re-issued at a higher price than its cost, the difference is recorded as a component of additional paid-in capital to the extent that there are gains to offset the losses. If there are no treasury stock gains in additional paid-in capital, the losses are recorded as a component of accumulated deficit.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) ("ASU 2016-02"). Under the new guidance, lessees will be required to recognize the following for all leases (with the exception of short-term leases) at the commencement date: (1) a lease liability, which is a lessee‘s obligation to make lease payments arising from a lease, measured on a discounted basis; and (2) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. Certain targeted improvements were made to align, where necessary, lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. The new lease guidance simplified the accounting for sale and leaseback transactions primarily because lessees must recognize lease assets and lease liabilities. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. ASU 2016-02 is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. While the Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements, the Company believes this standard will have a significant impact on its consolidated financial statements due, in part, to the substantial amount of operating leases it has. In January 2016, the FASB issued ASU 2016-01, Financial Instruments- Overall (Subtopic 825-10) ("ASU 2016-01"), which requires all equity investments to be measured at fair value with changes in the fair value recognized through net income other than those accounted for under equity method of accounting or those that result in consolidation of the investees). The ASU also requires that an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition the ASU eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities and the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. ASU 2016-01 is effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements. In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes ("ASU 2015-17"), to simplify the presentation of deferred income taxes by eliminating the requirement to separate deferred tax assets and liabilities into current and noncurrent amounts. ASU 2015-17 requires that all deferred tax assets and liabilities, along with any related valuation allowance, be classified as noncurrent and is effective for financial statements issued for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Earlier application is permitted as of the beginning of an interim or annual reporting period. The Company adopted ASU 2015-17 as of December 31, 2015 and applied the guidance prospectively. In September 2015, the FASB issued ASU 2015-16, Business Combinations (“ASU 2015-16”), to simplify accounting for adjustments made to provisional amounts recognized in a business combination by eliminating the requirement to retrospectively account for those adjustments. This ASU is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years with early adoption permitted. The amendments in this ASU require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization or other income effects as a result of changes to provisional amounts, calculated as if the accounting had been completed at the acquisition date. The Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements. In May 2015, the FASB issued ASU 2015-07, Fair Value Measurement (“ASU 2015-07”), which permits a reporting entity, as a practical expedient, to measure the fair value of certain investments using the net asset value per share of the investment. This ASU is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years with early adoption permitted. A reporting entity should apply the amendment retrospectively to all periods presented. The retrospective approach requires that an investment for which fair value is measured using the net asset value per share practical expedient be removed from the fair value hierarchy in all periods presented in an entity’s financial statements. The Company does not believe the adoption of ASU 2015-07 will have a significant impact on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Interest – Imputation of Interest (“ASU 2015-03”), to simplify the presentation of debt issuance costs. The ASU requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs is not affected by this ASU. This ASU is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within fiscal years beginning after December 15, 2016, with early adoption permitted. In August 2015, the FASB issued ASU 2015-15, Interest – Imputation of Interest Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements (“ASU 2015-15”), which amends ASU 2015-03 and provides guidance for the presentation of debt issuance costs associated with line-of-credit arrangements. ASU 2015-15 provides that debt issuance costs associated with line-of-credit arrangements may be presented in the balance sheet as assets. The Company adopted ASU 2015-03 and ASU 2015-15 in the three months ended September 30, 2015. As a result of the adoption of ASU 2015-03, the Company reclassified debt issuance costs of $35,455,000 at December 31, 2014 from other assets to debt. As of December 31, 2015, debt issuance costs of $47,028,000 were classified as a reduction of debt. In February 2015, the FASB issued ASU 2015-02, Consolidations (“ASU 2015-02”). This ASU requires companies to adopt a new consolidation model, specifically: (1) the ASU modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (VIEs) or voting interest entities; (2) the ASU eliminates the presumption that a general partner should consolidate limited partnership; (3) the ASU affects the consolidation analysis of reporting entities that involved with VIEs and (4) the ASU provides a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds. This ASU is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015, with early adoption permitted. The Company does not believe the adoption of ASU 2015-02 will have a significant impact on its consolidated financial statements. In January 2015, the FASB issued ASU 2015-01, Income Statement – Extraordinary and Unusual Items (“ASU 2015-01”), to simplify the income statement presentation requirements by eliminating the concept of extraordinary items. ASU 2015-01 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015, with early adoption permitted provided that the guidance is applied from the beginning of the fiscal year of adoption. The Company does not believe the adoption of ASU 2015-01 will have a significant impact on its consolidated financial statements. In August 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”), to provide guidance on management’s responsibility in evaluating whether there is substantial doubt about a company’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 is effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016, with early adoption permitted. The Company does not believe the adoption of ASU 2014-15 will have a significant impact on its consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”). This ASU requires companies to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which companies expect to be entitled in exchange for those goods or services. This ASU will replace most existing revenue recognition guidance in GAAP when it becomes effective. This ASU was originally effective for fiscal years and interim periods beginning after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (“ASU 2015-14”), which amends ASU 2014-09 and defers its effective date to fiscal years and interim reporting periods beginning after December 15, 2017. ASU 2015-14 permits earlier application only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact that the adoption of these standards will have on its consolidated financial statements.
Fair Value Valuation Methods	Valuation Methods Fair value estimates are made as of a specific point in time based on methods using the market approach valuation method which uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities or other valuation techniques. These techniques involve uncertainties and are affected by the assumptions used and the judgments made regarding risk characteristics of various financial instruments, discount rates, estimates of future cash flows, future expected loss experience and other factors. Cash, Cash Equivalents and Investments. The fair value of the Company's investments in money market funds approximates their face value. Such instruments are included in cash equivalents. The Company’s U.S. government securities, money market funds and publicly traded equity securities are classified within Level 1 of the fair value hierarchy because they are valued using quoted prices for identical instruments in active markets. The fair value of the Company's other investments approximate their face value, including certificates of deposit and available-for-sale debt investments related to the Company's investments in the securities of other public companies, governmental units and other agencies. The fair value of these investments is priced based on the quoted market price for similar instruments or nonbinding market prices that are corroborated by observable market data. Such instruments are classified within Level 2 of the fair value hierarchy. The Company determines the fair values of its Level 2 investments by using inputs such as actual trade data, benchmark yields, broker/dealer quotes, and other similar data, which are obtained from quoted market prices, custody bank, third-party pricing vendors, or other sources. The Company uses such pricing data as the primary input to make its assessments and determinations as to the ultimate valuation of its investment portfolio and has not made, during the periods presented, any material adjustments to such inputs. The Company is responsible for its consolidated financial statements and underlying estimates. The Company uses the specific identification method in computing realized gains and losses. Realized gains and losses on the investments are included within other income (expense) in the Company’s consolidated statements of operations. Short-term and long-term investments are classified as available-for-sale and are carried at fair value with unrealized gains and losses reported in stockholders’ equity as a component of other comprehensive income or loss, net of any related tax effect. The Company reviews its investment portfolio quarterly to determine if any securities may be other-than-temporarily impaired due to increased credit risk, changes in industry or sector of a certain instrument or ratings downgrades over an extended period of time. Derivative Assets and Liabilities . For derivatives, the Company uses forward contract and option models employing market observable inputs, such as spot currency rates and forward points with adjustments made to these values utilizing published credit default swap rates of its foreign exchange trading counterparties and other comparable companies. The Company has determined that the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, therefore the derivatives are categorized as Level 2.
Segment Information	While the Company has a single line of business, which is the design, build-out and operation of IBX data centers, it has determined that it has three reportable segments comprised of its Americas, EMEA and Asia-Pacific geographic regions. The Company’s chief operating decision-maker evaluates performance, makes operating decisions and allocates resources based on the Company’s revenue and adjusted EBITDA performance both on a consolidated basis and based on these three reportable segments.

Nature of Business and Summar29

Nature of Business and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Schedule of Revenue by Geographical Region	The following table sets forth percentages of the Company’s revenues by geographic region for the years ended December 31: 2015 2014 2013 Americas 55 % 56 % 59 % EMEA 26 % 26 % 24 % Asia-Pacific 19 % 18 % 17 %
Property, Plant and Equipment, Net	The Company’s estimated useful lives of its property, plant and equipment are as follows: Core systems 3-25 years Buildings 12-50 years Leasehold improvements 12-40 years Construction in progress N/A Personal Property 3-10 years Property, plant and equipment consisted of the following as of December 31 (in thousands): 2015 2014 Core systems $ 3,820,772 $ 3,252,569 Buildings 2,383,387 2,074,382 Leasehold improvements 1,204,900 1,053,451 Construction in progress 351,697 460,259 Personal Property 450,914 387,909 Land 183,946 160,035 8,395,616 7,388,605 Less accumulated depreciation (2,789,180 ) (2,390,335 ) $ 5,606,436 $ 4,998,270

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2015
Bit-isle [Member]
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Based upon the purchase price and the valuation of Bit-isle, the purchase price allocation was as follows (in thousands): Cash and cash equivalent $ 33,198 Accounts receivable 7,359 Other current assets 51,038 Long-term investments 3,806 Property, plant and equipment 308,985 Goodwill 95,444 Intangible assets 111,374 Other assets 22,981 Total assets acquired 634,185 Accounts payable and accrued expenses (15,028 ) Accrued property, plant and equipment (465 ) Capital lease and other financing obligations (108,833 ) Mortgage and loans payable (190,227 ) Other current liabilities (8,689 ) Deferred tax liabilities (32,192 ) Other liabilities (3,384 ) Net assets acquired $ 275,367
Acquired Identifiable Intangible Assets	The following table presents certain information on the acquired identifiable intangible assets (dollars in thousands): Intangible assets Fair value Estimated useful lives (years) Weighted-average estimated useful lives (years) Customer relationships $ 105,434 13 13.0 Trade name 3,455 2 2.0 Favorable solar contracts 2,410 18 18.0 Other intangible assets 75 0.25 0.25
Unaudited Pro Forma Combined Consolidated Statements of Operations	The following table sets forth the unaudited pro forma consolidated combined results of operations for the years ended December 31 (in thousands): 2015 2014 Revenues $ 2,847,411 $ 2,614,127 Net income 195,501 (251,067 )
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Based upon the purchase price and the valuation of Frankfurt Kleyer 90 Carrier Hotel, the purchase price allocation was as follows (in thousands): Property, plant and equipment $ 85,969 Intangible assets 10,011 Total assets acquired 95,980 Mortgage payable (42,906) Intangible - unfavorable leases (2,982) Net assets acquired $ 50,092
Acquired Identifiable Intangible Assets	The following table presents certain information on the acquired identifiable intangible assets (dollars in thousands): Intangible assets Fair value Estimated useful lives (years) Weighted-average estimated useful lives (years) Customer contracts $ 9,363 0.3 - 8 4.9 Unfavorable leases (2,982) 1 - 6 4.8 Favorable leases 648 1 - 8 7.5

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted EPS for the years ended December 31 (in thousands, except per share amounts): 2015 2014 2013 Net income (loss) $ 187,774 $ (260,726 ) $ 96,123 Net (income) loss attributable to redeemable non-controlling interests — 1,179 (1,438 ) Net income (loss) attributable to Equinix, basic and diluted $ 187,774 $ (259,547 ) $ 94,685 Weighted-average shares used to calculate basic EPS 57,790 52,359 49,438 Effect of dilutive securities: Employee equity awards 693 — 678 Total dilutive potential shares 693 — 678 Weighted-average shares used to calculate diluted EPS 58,483 52,359 50,116 EPS attributable to Equinix: Basic EPS $ 3.25 $ (4.96 ) $ 1.92 Diluted EPS $ 3.21 $ (4.96 ) $ 1.89
Anti-dilutive Potential Shares of Common Stock Excluded from Computation of Earnings Per Share	The following table sets forth potential shares of common stock that are not included in the diluted EPS calculation above because to do so would be anti-dilutive for the years ended December 31 (in thousands): 2015 2014 2013 Shares related to the potential conversion of 3.00% convertible subordinated notes — 861 3,613 Shares related to the potential conversion of 4.75% convertible subordinated notes 1,977 2,824 4,432 Common stock related to employee equity awards 88 1,820 254 2,065 5,505 8,299

Assets Held for Sale (Tables)

Assets Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Assets Held-for-sale	The following table summarizes the assets and liabilities of the LD2 data center and San Jose land parcel classified as held for sale in the consolidated balance sheet as of December 31, 2015 (in thousands): Accounts Receivable $ 2,222 Other current assets 408 Property, plant and equipment 23,533 Goodwill 5,000 Intangible assets 784 Other assets 1,310 Total assets held for sale $ 33,257 Accounts payable and accrued expenses $ (654 ) Accrued property, plant and equipment (816 ) Other current liabilities (435 ) Other liabilities (1,630 ) Total liabilities held for sale $ (3,535 )

Balance Sheet Components (Table

Balance Sheet Components (Tables)	12 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash, Cash Equivalents and Short-Term and Long-Term Investments	Cash, cash equivalents and short-term and long-term investments consisted of the following as of December 31 (in thousands): 2015 2014 Cash and cash equivalents: Cash (1) $ 1,139,554 $ 207,953 Cash equivalents: Money market funds 1,089,284 402,964 Total cash and cash equivalents 2,228,838 610,917 Marketable securities: U.S. government securities — 336,440 U.S. government agency securities — 192,955 Certificates of deposit 14,106 439 Publicly traded equity securities 3,353 — Total marketable securities 17,459 529,834 Total cash, cash equivalents and short-term and long-term investments $ 2,246,297 $ 1,140,751 _________________________ (1) Excludes restricted cash.
Summary of Cost and Estimated Fair Value of Marketable Securities	The following table summarizes the cost and estimated fair value of marketable debt securities based on stated effective maturities as of December 31 (in thousands): 2015 2014 Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 12,875 $ 12,875 $ 529,567 $ 529,395 Due after one year through three years 1,231 1,231 439 439 Total $ 14,106 $ 14,106 $ 530,006 $ 529,834
Net Unrealized Gains (Losses) on Available-for-Sale Securities	As of December 31, 2015, the Company’s net unrealized gains (losses) on its available-for-sale securities were comprised of the following (in thousands): Amortized Cost Gross unrealized gains Gross unrealized losses Fair Value Certificates of deposit $ 14,106 $ — $ — $ 14,106 Publicly traded equity securities 3,561 — (208 ) 3,353 Total $ 17,667 $ — $ (208 ) $ 17,459 As of December 31, 2014, the Company’s net unrealized gains (losses) on its available-for-sale securities were comprised of the following (in thousands): Amortized Cost Gross unrealized gains Gross unrealized losses Fair Value U.S. government securities $ 336,561 $ 45 $ (166 ) $ 336,440 U.S. government agency securities 193,006 30 (81 ) 192,955 Certificates of deposit 439 — — 439 Total $ 530,006 $ 75 $ (247 ) $ 529,834
Accounts Receivable, Net	Accounts receivable, net, consisted of the following as of December 31 (in thousands): 2015 2014 Accounts receivable $ 302,316 $ 272,036 Allowance for doubtful accounts (10,352 ) (9,466 ) $ 291,964 $ 262,570
Activities of Allowance for Doubtful Accounts	The following table summarizes the activity of the Company’s allowance for doubtful accounts (in thousands): Balance as of December 31, 2012 $ 3,716 Provision for allowance for doubtful accounts 5,819 Net write-offs (2,833 ) Impact of foreign currency exchange (62 ) Balance as of December 31, 2013 6,640 Provision for allowance for doubtful accounts 7,093 Net write-offs (3,825 ) Impact of foreign currency exchange (442 ) Balance as of December 31, 2014 9,466 Provision for allowance for doubtful accounts 5,037 Net write-offs (3,438 ) Impact of foreign currency exchange (713 ) Balance as of December 31, 2015 $ 10,352
Other Current Assets	Other current assets consisted of the following as of December 31 (in thousands): 2015 2014 Prepaid expenses $ 48,322 $ 29,501 Taxes receivable 33,979 17,071 Deferred tax assets, net — 6,579 Other receivables 1,925 2,324 Derivative instruments 60,165 17,732 Other current assets 68,538 11,797 $ 212,929 $ 85,004
Property, Plant and Equipment, Net	The Company’s estimated useful lives of its property, plant and equipment are as follows: Core systems 3-25 years Buildings 12-50 years Leasehold improvements 12-40 years Construction in progress N/A Personal Property 3-10 years Property, plant and equipment consisted of the following as of December 31 (in thousands): 2015 2014 Core systems $ 3,820,772 $ 3,252,569 Buildings 2,383,387 2,074,382 Leasehold improvements 1,204,900 1,053,451 Construction in progress 351,697 460,259 Personal Property 450,914 387,909 Land 183,946 160,035 8,395,616 7,388,605 Less accumulated depreciation (2,789,180 ) (2,390,335 ) $ 5,606,436 $ 4,998,270
Goodwill and Other Intangible Assets	Goodwill and other intangible assets, net, consisted of the following as of December 31 (in thousands): 2015 2014 Goodwill: Americas $ 460,203 $ 463,902 EMEA 374,070 404,093 Asia-Pacific 228,927 134,134 $ 1,063,200 $ 1,002,129 Intangible assets: Intangible assets - customer contracts $ 311,581 $ 220,674 Intangible assets - favorable leases 22,783 24,300 Intangible assets - licenses 9,697 9,697 Intangible assets - others 13,491 8,132 357,552 262,803 Accumulated amortization - customer contracts (117,167 ) (102,074 ) Accumulated amortization - favorable leases (8,909 ) (7,656 ) Accumulated amortization - licenses (1,942 ) (1,294 ) Accumulated amortization - others (4,969 ) (4,252 ) (132,987 ) (115,276 ) $ 224,565 $ 147,527
Carrying Amount of Goodwill by Geographic Regions	Changes in the carrying amount of goodwill by geographic regions are as follows (in thousands): Americas EMEA Asia-Pacific Total Balance as of December 31, 2013 $ 471,845 $ 435,041 $ 135,267 $ 1,042,153 Impact of foreign currency exchange (7,943 ) (30,948 ) (1,133 ) (40,024 ) Balance as of December 31, 2014 463,902 404,093 134,134 1,002,129 Purchase accounting adjustments 17,192 — 95,437 112,629 Asset held for sale adjustments — (5,000 ) — (5,000 ) Impact of foreign currency exchange (20,891 ) (25,023 ) (644 ) (46,558 ) Balance as of December 31, 2015 $ 460,203 $ 374,070 $ 228,927 $ 1,063,200
Net Book Value of Intangible Assets by Geographic Regions	Changes in the net book value of intangible assets by geographic regions are as follows (in thousands): Americas EMEA Asia-Pacific Total Balance as of December 31, 2012 $ 89,467 $ 84,186 $ 27,909 $ 201,562 Frankfurt Kleyer 90 Carrier Hotel acquisition (see Note 2) — 10,010 — 10,010 New York IBX Center purchase 1,100 — — 1,100 Adjustments — (2,070 ) — (2,070 ) Amortization of intangibles (12,604 ) (11,613 ) (2,810 ) (27,027 ) Impact of foreign currency exchange (1,739 ) 2,196 150 607 Balance as of December 31, 2013 76,224 82,709 25,249 184,182 Amortization of intangibles (12,257 ) (12,795 ) (2,704 ) (27,756 ) Impact of foreign currency exchange (1,013 ) (7,729 ) (157 ) (8,899 ) Balance as of December 31, 2014 62,954 62,185 22,388 147,527 Nimbo acquisition 1,089 — — 1,089 Bit-Isle acquisition — — 111,374 111,374 Asset held for sale adjustments — (784 ) — (784 ) Write-off of intangible asset — (357 ) — (357 ) Amortization of intangibles (11,432 ) (11,675 ) (4,339 ) (27,446 ) Impact of foreign currency exchange (1,968 ) (5,014 ) 144 (6,838 ) Balance as of December 31, 2015 $ 50,643 $ 44,355 $ 129,567 $ 224,565
Estimated Future Amortization Expense Related to Intangibles	Estimated future amortization expense related to these intangibles is as follows (in thousands): Year ending: 2016 $ 35,298 2017 33,644 2018 29,690 2019 24,978 2020 19,217 Thereafter 81,738 Total $ 224,565
Other Assets	Other assets consisted of the following as of December 31 (in thousands): 2015 2014 Deferred tax assets, net $ 61,152 $ 45,134 Prepaid expenses, non-current 54,372 37,006 Debt issuance costs, net 19,709 9,022 Deposits 33,132 26,068 Derivative instruments 8,735 5,007 Other assets, non-current 11,358 6,373 $ 188,458 $ 128,610
Accounts Payable and Accrued Expenses	ccounts payable and accrued expenses consisted of the following as of December 31 (in thousands): 2015 2014 Accounts payable $ 49,892 $ 30,221 Accrued compensation and benefits 131,204 115,184 Accrued interest 67,077 29,116 Accrued taxes (1) 37,004 41,295 Accrued utilities and security 31,789 31,531 Accrued professional fees 18,380 8,148 Accrued repairs and maintenance 3,618 4,086 Accrued other 61,984 26,215 $ 400,948 $ 285,796 __________________________ (1) Includes income taxes payable of $14,527,000 and $21,941,000 , respectively, as of December 31, 2015 and 2014.
Other Current Liabilities	Other current liabilities consisted of the following as of December 31 (in thousands): 2015 2014 Deferred tax liabilities, net $ — $ 83,264 Deferred installation revenue 56,055 48,707 Customer deposits 23,676 13,492 Derivative instruments 79,256 810 Deferred recurring revenue 12,515 6,879 Deferred rent 3,572 2,675 Dividends payable 13,674 4,559 Asset retirement obligations — 945 Other current liabilities 3,538 1,333 $ 192,286 $ 162,664
Other Liabilities	Other liabilities consisted of the following as of December 31 (in thousands): 2015 2014 Asset retirement obligations, non-current $ 78,482 $ 63,913 Deferred tax liabilities, net 100,624 69,212 Deferred installation revenue, non-current 86,660 76,744 Deferred rent, non-current 68,787 52,968 Accrued taxes, non-current 26,763 24,726 Dividends payable, non-current 13,394 4,972 Customer deposits, non-current 4,701 4,618 Deferred recurring revenue, non-current 3,645 445 Derivative instruments 669 — Other liabilities 6,688 7,366 $ 390,413 $ 304,964
Summary of Asset Retirement Obligation Liability	The following table summarizes the activity of the Company’s asset retirement obligation liability (in thousands): Asset retirement obligations as of December 31, 2012 $ 63,150 Additions 8,713 Adjustments (1) (14,874 ) Accretion expense 2,932 Impact of foreign currency exchange (373 ) Asset retirement obligations as of December 31, 2013 59,548 Additions 5,774 Adjustments (1) (871 ) Accretion expense 2,438 Impact of foreign currency exchange (2,031 ) Asset retirement obligations as of December 31, 2014 64,858 Additions 17,337 Adjustments (1) (4,676 ) Accretion expense 3,349 Impact of foreign currency exchange (2,386 ) Asset retirement obligations as of December 31, 2015 $ 78,482 __________________________ (1) Reversal of asset retirement obligations associated with leases that were amended.

Derivatives and Hedging Instr34

Derivatives and Hedging Instruments (Tables)	12 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Cash Flow Hedge Instruments	As of December 31, 2015 , the Company's cash flow hedge instruments had maturity dates ranging from January 2016 to December 2017 as follows (in thousands): Notional Amount Fair Value (1) Accumulated other comprehensive income (loss) (2)(3) Derivative assets $ 367,330 $ 16,027 $ 34,578 Derivative liabilities 47,447 (813 ) (19,709 ) $ 414,777 $ 15,214 $ 14,869 __________________________ (1) All derivative assets related to cash flow hedges are included in the consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) Included in the consolidated balance sheets within accumulated other comprehensive income (loss). (3) The Company recorded a net gain of $12,940 within accumulated other comprehensive income (loss) relating to cash flow hedges that will be reclassified to revenue and expenses as they mature over the next 12 months. As of December 31, 2014, the Company's cash flow hedge instruments had maturity dates ranging from January 2015 to January 2016 as follows (in thousands): Notional Amount Fair Value (1) Accumulated other comprehensive income (loss) (2) Derivative assets $ 281,055 $ 8,404 $ 8,480 Derivative liabilities — — — $ 281,055 $ 8,404 $ 8,480 __________________________ (1) All derivative assets related to cash flow hedges are included in the consolidated balance sheets within other current assets. (2) Included in the consolidated balance sheets within accumulated other comprehensive income (loss).
Schedule of Fair Value of Derivative Instruments Recognized in Consolidated Balance Sheets	The following table presents the fair value of derivative instruments recognized in the Company’s consolidated balance sheets as of December 31, 2015 (in thousands): Gross Amounts Gross amounts offset in the balance sheet Net balance sheet amounts (1) Gross amounts not offset in the balance sheet (2) Net Assets: Designated as hedging instruments: Foreign currency forward and option contracts $ 16,027 $ — $ 16,027 $ (813 ) $ 15,214 Not designated as hedging instruments: Embedded derivatives 8,926 — 8,926 — 8,926 Economic hedges of embedded derivatives 744 — 744 — 744 Foreign currency forward contracts 43,203 — 43,203 (34,577 ) 8,626 52,873 — 52,873 (34,577 ) 18,296 Additional netting benefit — — — (9,512 ) (9,512 ) $ 68,900 $ — $ 68,900 $ (44,902 ) $ 23,998 Liabilities: Designated as hedging instruments: Foreign currency forward and option contracts $ 813 $ — $ 813 $ (813 ) $ — Not designated as hedging instruments: Embedded derivatives 1,772 — 1,772 — 1,772 Economic hedges of embedded derivatives 417 — 417 — 417 Foreign currency forward contracts 76,923 — 76,923 (34,577 ) 42,346 79,112 — 79,112 (34,577 ) 44,535 Additional netting benefit — — — (9,512 ) (9,512 ) $ 79,925 $ — $ 79,925 $ (44,902 ) $ 35,023 _______________________ (1) As presented in the Company’s consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) The Company enters into master netting agreements with its counterparties for transactions other than embedded derivatives to mitigate credit risk exposure to any single counterparty. Master netting agreements allow for individual derivative contracts with a single counterparty to offset in the event of default. The following table presents the fair value of derivative instruments recognized in the Company’s consolidated balance sheets as of December 31, 2014 (in thousands): Gross Amounts Gross amounts offset in the balance sheet Net amounts (1) Gross amounts not offset in the balance sheet (2) Net Assets: Designated as hedging instruments: Foreign currency forward contracts $ 8,404 $ — $ 8,404 $ — $ 8,404 Not designated as hedging instruments: Embedded derivatives 9,182 — 9,182 — 9,182 Foreign currency forward and option contracts 5,153 — 5,153 (138 ) 5,015 14,335 — 14,335 (138 ) 14,197 Additional netting benefit — — — (508 ) (508 ) $ 22,739 $ — $ 22,739 $ (646 ) $ 22,093 Liabilities: Designated as hedging instruments: Foreign currency forward contracts $ — $ — $ — $ — $ — Not designated as hedging instruments: Embedded derivatives 4 — 4 — 4 Economic hedges of embedded derivatives 390 — 390 — 390 Foreign currency forward and option contracts 416 — 416 (138 ) 278 810 — 810 (138 ) 672 Additional netting benefit — — — (508 ) (508 ) $ 810 $ — $ 810 $ (646 ) $ 164 _________________________ (1) As presented in the Company’s consolidated balance sheets within other current assets, other assets, other current liabilities and other liabilities. (2) The Company enters into master netting agreements with its counterparties for transactions other than embedded derivatives to mitigate credit risk exposure to any single counterparty. Master netting agreements allow for individual derivative contracts with a single counterparty to offset in the event of default.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The Company’s financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2015 were as follows (in thousands): Fair value at December 31, Fair value measurement using 2015 Level 1 Level 2 Assets: Cash $ 1,139,554 $ 1,139,554 $ — Money market and deposit accounts 1,089,284 1,089,284 — Publicly traded equity securities 3,353 3,353 — Certificates of deposit 14,106 — 14,106 Derivative instruments (1) 68,900 — 68,900 $ 2,315,197 $ 2,232,191 $ 83,006 Liabilities: Derivative instruments (1) $ 79,925 $ — $ 79,925 _________________________ (1) Includes both foreign currency embedded derivatives and foreign currency forward and option contracts. Amounts are included within other current assets, other assets, other current liabilities and other liabilities in the Company’s accompanying consolidated balance sheet. The Company’s financial assets and liabilities measured at fair value on a recurring basis at December 31, 2014 were as follows (in thousands): Fair value at December 31, Fair value measurement using 2014 Level 1 Level 2 Assets: Cash $ 207,953 $ 207,953 $ — Money market and deposit accounts 402,964 402,964 — U.S. government securities 336,440 336,440 — U.S. government agency securities 192,955 — 192,955 Certificates of deposit 439 — 439 Derivative instruments (1) 22,739 — 22,739 $ 1,163,490 $ 947,357 $ 216,133 Liabilities: Derivative instruments (1) $ 810 $ — $ 810 _________________________ (1) Includes embedded derivatives, foreign currency embedded derivatives and foreign currency forward contracts. Amounts are included within other current assets, other current liabilities and other liabilities in the Company’s accompanying consolidated balance sheet.

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Summary of Capital Lease and Other Financing Obligations	The Company’s capital lease and other financing obligations are summarized as follows as of December 31, 2015 (dollars in thousands): Capital lease obligations Other financing obligations Total 2016 $ 74,457 $ 66,175 $ 140,632 2017 73,537 66,116 139,653 2018 74,053 66,928 140,981 2019 74,857 63,990 138,847 2020 74,868 61,719 136,587 Thereafter 827,789 518,552 1,346,341 Total minimum lease payments 1,199,561 843,480 2,043,041 Plus amount representing residual property value — 467,616 467,616 Less estimated building costs — (247 ) (247 ) Less amount representing interest (557,433 ) (625,717 ) (1,183,150 ) Present value of net minimum lease payments 642,128 685,132 1,327,260 Less current portion (23,435 ) (16,686 ) (40,121 ) $ 618,693 $ 668,446 $ 1,287,139
Schedule of Minimum Future Operating Lease Payments	Minimum future operating lease payments as of December 31, 2015 are summarized as follows (in thousands): Year ending: 2016 $ 115,091 2017 113,624 2018 108,810 2019 100,462 2020 89,227 Thereafter 632,677 Total $ 1,159,891

Debt Facilities (Tables)

Debt Facilities (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Summary of Debt	The Company’s mortgage and loans payable consisted of the following as of December 31 (in thousands): 2015 2014 Term loan A $ 456,740 $ 500,000 Bridge term loan 386,547 — Revolving credit facility borrowings 325,622 — Brazil financings 27,113 56,863 Mortgage payable and other loans payable 47,677 36,608 1,243,699 593,471 Less the amount representing debt discount and debt issuance cost (2,681 ) (3,477 ) Add the amount representing mortgage premium 1,987 2,281 1,243,005 592,275 Less current portion (770,236 ) (59,466 ) $ 472,769 $ 532,809 The Company’s senior notes consisted of the following as of December 31 (in thousands): 2015 2014 5.375% Senior Notes due 2023 $ 1,000,000 $ 1,000,000 5.375% Senior Notes due 2022 750,000 750,000 4.875% Senior Notes due 2020 500,000 500,000 5.75% Senior Notes due 2025 500,000 500,000 5.875% Senior Notes due 2026 1,100,000 — 3,850,000 2,750,000 Less amount representing debt issuance cost (45,366 ) (32,954 ) $ 3,804,634 $ 2,717,046
Schedule of Convertible Debt	The 4.75% Convertible Subordinated Notes consisted of the following as of December 31 (in thousands): 2015 2014 Equity component (1) $ 42,091 $ 44,278 Liability component: Principal $ 150,082 $ 157,885 Less debt discount and debt issuance costs, net (2) (3,961 ) (12,656 ) Net carrying amount $ 146,121 $ 145,229 __________________________ (1) Included in the consolidated balance sheets within additional paid-in capital. (2) Included in the consolidated balance sheets within convertible debt and is amortized over the remaining life of the 4.75% Convertible Subordinated Notes. The Company’s convertible debt consisted of the following as of December 31 (in thousands): 2015 2014 4.75% Convertible Subordinated Notes $ 150,082 $ 157,885 Less amount representing debt discount and debt issuance cost (3,961 ) (12,656 ) $ 146,121 $ 145,229
Schedule of Interest Charges Incurred	he following table sets forth total interest costs incurred and total interest costs capitalized for the years ended December 31 (in thousands): 2015 2014 2013 Interest expense $ 299,055 $ 270,553 $ 248,792 Interest capitalized 10,943 19,004 10,608 Interest charges incurred $ 309,998 $ 289,557 $ 259,400 The following table sets forth total interest expense recognized related to the 4.75% Convertible Subordinated Notes for the years ended December 31 (in thousands): 2015 2014 Contractual interest expense $ 7,501 $ 10,976 Amortization of debt issuance costs 428 629 Amortization of debt discount 8,060 10,448 $ 15,989 $ 22,053 Effective interest rate of the liability component 10.65 % 10.88 %
Summary of Senior Notes Redemption Price Percentage	On or after April 1, 2017, the Company may redeem all or a part of the 2020 Senior Notes, on any one or more occasions, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date, if redeemed during the twelve -month period beginning on April 1 of the years indicated below: Redemption Price of the 2020 Senior Notes 2017 102.438 % 2018 101.219 % 2019 and thereafter 100.000 % On or after January 1, 2018, the Company may redeem all or a part of the 2022 Senior Notes, on any one or more occasions, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date, if redeemed during the twelve-month period beginning January 1 of the years indicated below: Redemption Price of the 2022 Notes 2018 104.031 % 2019 102.688 % 2020 101.344 % 2021 and thereafter 100.000 % On or after January 15, 2021, the Company may redeem all or a part of the 2026 Senior Notes, on any one or more occasions, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date, if redeemed during the twelve-month period beginning January 15 of the years indicated below: Redemption Price of the 2026 Notes 2021 102.938 % 2022 101.958 % 2023 100.979 % 2024 and thereafter 100.000 % n or after April 1, 2018, the Company may redeem all or a part of the 2023 Senior Notes, on any one or more occasions, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date, if redeemed during the twelve-month period beginning on April 1 of the years indicated below: Redemption Price of the 2023 Senior Notes 2018 102.688 % 2019 101.792 % 2020 and thereafter 100.896 % 2021 and thereafter 100.000 % On or after January 1, 2020, the Company may redeem all or a part of the 2025 Senior Notes, on any one or more occasions, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date, if redeemed during the twelve-month period beginning January 1 of the years indicated below: Redemption Price of the 2025 Notes 2020 102.875 % 2021 101.917 % 2022 100.958 % 2023 and thereafter 100.000 %
Summary of Maturities of Debt Facilities	The following table sets forth maturities of the Company’s debt, including loans payable, convertible debt and senior notes, gross of debt issuance costs and discounts, as of December 31, 2015 (in thousands): Year ending: 2016 $ 920,125 2017 51,048 2018 47,615 2019 339,329 2020 503,224 Thereafter 3,384,427 $ 5,245,768
Fair Value of Debt Facilities	The following table sets forth the estimated fair values of the Company’s mortgage, loans payable, convertible debt, senior notes and revolving credit line, including current maturities, as of December 31 (in thousands): 2015 2014 Mortgage and loans payable $ 916,602 $ 553,045 Convertible debt 151,997 162,159 Senior notes 3,954,000 2,790,023 Revolving credit line 325,617 —

Redeemable Non-Controlling In38

Redeemable Non-Controlling Interests (Tables)	12 Months Ended
	Dec. 31, 2015
Noncontrolling Interest [Abstract]
Activities of Company's Redeemable Non-Controlling Interests	The following table provides a summary of the activities of the Company’s redeemable non-controlling interests (in thousands): Balance as of December 31, 2013 $ 123,902 Net loss attributable to redeemable non-controlling interest (1,179 ) Other comprehensive income attributable to redeemable non-controlling interests 1,810 Increase in redemption value of non-controlling interests 90,913 Impact of foreign currency translation 1,724 Exercise of vested and outstanding ALOG stock options 8,459 Purchase price of redeemable non-controlling interests (225,629 ) Balances as of December 31, 2014 $ —

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Schedule of Reserve for Authorized but Unissued Shares of Common Stock	As of December 31, 2015, the Company had reserved the following shares of authorized but unissued shares of common stock for future issuances: Conversion of 4.75% Convertible Subordinated Notes 1,960,896 Common stock options and restricted stock units 5,848,288 Common stock employee purchase plans 3,577,911 11,387,095
Components of Accumulated Other Comprehensive Loss	The components of the Company’s accumulated other comprehensive loss consisted of the following as of December 31, 2015 (in thousands): Balance as of Net Balance as of Foreign currency translation adjustment ("CTA") loss $ (336,946 ) $ (186,763 ) $ (523,709 ) Unrealized gain (loss) on cash flow hedges (1) 6,603 4,550 11,153 Net investment hedge CTA gain (1) — 4,484 4,484 Unrealized gain (loss) on available for sale securities (2) (99 ) (40 ) (139 ) Net actuarial gain (loss) on defined benefit plans (3) (2,001 ) 1,153 (848 ) $ (332,443 ) $ (176,616 ) $ (509,059 ) __________________________ (1) Refer to Note 6 for a discussion of the amounts reclassified from accumulated other comprehensive loss to net income (loss). (2) The realized gains and losses reclassified from accumulated other comprehensive loss to net income (loss) were insignificant for the year ended December 31, 2015. (3) The Company has a defined benefit pension plan covering all employees in one country where such plans are mandated by law. The Company does not have any defined benefit plans in any other countries. The unamortized gain (loss) on defined benefit plans includes gains or losses resulting from a change in the value of either the projected benefit obligation or the plan assets resulting from a change in an actuarial assumption, net of amortization.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Option Activity	Stock option activity under the Equity Compensation Plans is summarized as follows: Number of shares outstanding Weighted average exercise price per share Weighted average remaining contractual life (years) Aggregate intrinsic value (1) (dollars in thousands) Stock options outstanding at December 31, 2012 296,529 $ 68.68 Stock options exercised (147,819 ) 63.66 Stock options canceled (655 ) 3.06 Stock options outstanding at December 31, 2013 148,055 73.99 Stock options exercised (71,780 ) 72.44 Additional shares granted due to special distribution 1,659 — Stock options outstanding at December 31, 2014 77,934 73.84 Stock options exercised (41,889 ) 64.18 Additional shares granted due to special distribution 1,454 — Stock options expired (250 ) 41.12 Stock options outstanding at December 31, 2015 37,249 82.06 1.72 $ 8,208 Stock options vested and exercisable at December 31, 2015 37,249 82.06 1.72 8,208 __________________________ (1) The aggregate intrinsic value is calculated as the difference between the market value of the stock as of December 31, 2015 and the exercise price of the option.
Schedule of Outstanding Stock Options	The following table summarizes information about outstanding stock options as of December 31, 2015: Outstanding Exercisable Range of exercise prices Number of shares Weighted average remaining contractual life (years) Weighted-average exercise price Number of shares Weighted-average exercise price $28.56 to $54.22 1,631 2.88 $ 35.83 1,631 $ 35.83 $80.84 to $81.23 21,183 1.21 81.13 21,183 81.13 $88.56 to $89.23 14,435 2.35 88.63 14,435 88.63 37,249 1.72 82.06 37,249 82.06
Schedule of Additional Disclosure for Stock Options	The Company provides the following additional disclosures for stock options as of December 31 (dollars in thousands): 2015 2014 2013 Total fair value of stock options vested $ — $ 45 $ 485 Total aggregate intrinsic value of stock options exercised (1) 7,198 9,227 19,385 _________________________ (1) The intrinsic value is calculated as the difference between the market value of the stock on the date of exercise and the exercise price of the option.
Summary of Restricted Stock Unit Activity	Restricted stock unit activity is summarized as follows: Number of shares outstanding Weighted-average grant date fair value per share Weighted-average remaining contractual life (years) Aggregate intrinsic value (1) (dollars in thousands) Restricted stock units outstanding, December 31, 2012 1,583,840 $ 115.22 Restricted stock units granted 775,029 204.20 Restricted stock units released, vested (738,767 ) 199.14 Restricted stock units canceled (110,720 ) 138.27 Restricted shares outstanding, December 31, 2013 1,509,382 122.05 Restricted stock units granted 803,692 190.90 Additional shares granted due to special distribution 48,171 224.45 Restricted stock units released, vested (703,393 ) 201.85 Restricted stock units canceled (253,878 ) 179.71 Restricted shares outstanding, December 31, 2014 1,403,974 114.56 Restricted stock units granted 711,990 236.89 Additional shares granted due to special distribution 51,432 297.03 Restricted stock units released, vested (623,554 ) 173.79 Special distribution shares released (19,966 ) 227.99 Restricted stock units canceled (103,922 ) 198.67 Special distribution shares canceled (3,516 ) 235.43 Restricted shares outstanding, December 31, 2015 1,416,438 148.53 1.21 $ 428,331 __________________________ (1) The intrinsic value is calculated based on the market value of the stock as of December 31, 2015.
Disclosures for 2004 Purchase Plan	The Company provides the following disclosures for the 2004 Purchase Plan as of December 31 (dollars, except shares): 2015 2014 2013 Weighted-average purchase price per share $ 150.13 $ 144.95 $ 108.97 Weighted average grant-date fair value per share of shares purchased 57.63 53.37 41.30 Number of shares purchased 182,175 166,384 214,985
Assumptions in Computation of Fair Value	The Company uses the Black-Scholes option-pricing model to determine the fair value of shares purchased under the 2004 Purchase Plan with the following weighted average assumptions for the years ended December 31: 2015 2014 2013 Dividend yield 2.65 - 2.81% 0 % 0 % Expected volatility 31 % 34 % 41 % Risk-free interest rate 0.26 % 0.19 % 0.37 % Expected life (in years) 1.25 1.25 1.25
Schedule of Allocated Share-based Compensation	The following table presents, by operating expense, the Company’s stock-based compensation expense recognized in the Company’s consolidated statement of operations for the years ended December 31 (in thousands): 2015 2014 2013 Cost of revenues $ 9,878 $ 8,511 $ 7,855 Sales and marketing 36,847 30,084 26,538 General and administrative 86,908 79,395 68,547 $ 133,633 $ 117,990 $ 102,940
Schedule of Share-based Compensation by Plan	The Company’s stock-based compensation recognized in the consolidated statement of operations was comprised of the following types of equity awards for the years ended December 31 (in thousands): 2015 2014 2013 Stock options $ 1,679 $ 4,917 $ 3,456 Restricted shares and restricted stock units 124,512 104,235 88,411 Employee stock purchase plan 7,442 8,838 11,073 $ 133,633 $ 117,990 $ 102,940

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income (Loss) from Continuing Operations before Income Taxes Attributable to Geographic Locations	Income (loss) before income taxes is attributable to the following geographic locations for the years ended December 31, (in thousands): 2015 2014 2013 Domestic $ 123,153 $ (46,876 ) $ (28,362 ) Foreign 87,845 131,609 140,641 Income before income taxes and income (loss) attributable to redeemable non-controlling interests $ 210,998 $ 84,733 $ 112,279
Components of Tax Benefit (Expenses) for Income Taxes from Continuing Operations	The tax benefit (expenses) for income taxes consisted of the following components for the years ended December 31, (in thousands): 2015 2014 2013 Current: Federal $ (85,352 ) $ (98,445 ) $ (100,035 ) State and local (3,984 ) (16,243 ) (15,260 ) Foreign (27,090 ) (31,844 ) (29,377 ) Subtotal (116,426 ) (146,532 ) (144,672 ) Deferred: Federal 87,801 (177,877 ) 111,721 State and local 4,600 (21,539 ) 17,044 Foreign 801 489 (249 ) Subtotal 93,202 (198,927 ) 128,516 Provision for income taxes $ (23,224 ) $ (345,459 ) $ (16,156 )
Income Tax Reconciliation	The fiscal 2015, 2014 and 2013 income tax expense differed from the amounts computed by applying the U.S. federal income tax rate of 35% to pre-tax income as a result of the following for the years ended December 31 (in thousands): 2015 2014 2013 Federal tax at statutory rate $ (73,849 ) $ (29,657 ) $ (39,298 ) State and local taxes 945 1,370 7,435 Deferred tax assets generated in current year not benefited (4,916 ) (3,311 ) (4,777 ) Foreign income tax rate differential 30,387 20,002 21,392 Non-deductible expenses (14,252 ) (1,274 ) (2,525 ) Stock-based compensation expense (3,922 ) (4,496 ) (3,273 ) Change in valuation allowance 710 1,655 1,362 Foreign financing benefits 2,592 2,981 4,303 Uncertain tax positions reserve (3,191 ) (463 ) 2,952 Statutory rate change due to REIT conversion 45,823 (324,142 ) — Other, net (3,551 ) (8,124 ) (3,727 ) Total income tax expense $ (23,224 ) $ (345,459 ) $ (16,156 )
Schedule of Deferred Tax Assets and Liabilities	The types of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are set out below as of December 31 (in thousands): 2015 2014 Deferred tax assets: Reserves and accruals $ 13,013 $ 11,952 Stock-based compensation expense 1,459 1,185 Unrealized currency gains/losses 10,656 — Others, net 18 — Operating loss carryforwards 34,457 27,687 Gross deferred tax assets 59,603 40,824 Valuation allowance (29,894 ) (27,181 ) Total deferred tax assets, net 29,709 13,643 Deferred tax liabilities: Property, plant and equipment (3,365 ) (78,261 ) Unrealized currency gains/losses — (502 ) Fixed assets fair value step-up (5,683 ) (7,210 ) Intangible assets (60,133 ) (28,433 ) Total deferred tax liabilities (69,181 ) (114,406 ) Net deferred tax liabilities $ (39,472 ) $ (100,763 )
Changes in Valuation Allowance for Deferred Tax Assets	Changes in the valuation allowance for deferred tax assets for the years ended December 31, 2015, 2014 and 2013 are as follows (in thousands): 2015 2014 2013 Beginning balance $ 27,181 $ 31,058 $ 44,868 Recognized into income (710 ) (1,655 ) (1,362 ) Current Increase (Decrease) 4,513 721 (10,156 ) NOL and tax credit expiration — 238 11 Translation adjustment (1,090 ) (3,181 ) (2,303 ) Ending balance $ 29,894 $ 27,181 $ 31,058
Schedule of Net Operating Loss Carryforwards	The Company’s net operating loss carryforwards for federal, state and foreign tax purposes which expire, if not utilized, at various intervals from 2015 , are outlined below (in thousands): Expiration Date Federal (1) State (1) Foreign Total 2016 $ — $ 12,793 $ 1,464 $ 14,257 2017 to 2019 — 190 32,464 32,654 2020 to 2022 213,390 — 11,798 225,188 2023 to 2025 26,838 4,005 9,611 40,454 2026 to 2028 12,186 — — 12,186 2029 to 2031 — 3,330 — 3,330 Thereafter — — 152,073 152,073 $ 252,414 $ 20,318 $ 207,410 $ 480,142 (1) The total amount of net operating loss carryforwards that will not be available to offset the Company’s future taxable income after dividend paid deduction due to Section 382 limitations was $258,339 , comprising $241,766 of federal and $16,573 of state.
Reconciliation of Unrecognized Tax Benefits	The beginning and ending balances of the Company's unrecognized tax benefits are reconciled below for the years ended December 31 (in thousands): 2015 2014 2013 Beginning balance $ 36,138 $ 36,552 $ 25,050 Gross increases related to prior year tax positions — 1,200 14,596 Gross decreases related to prior year tax positions (8,645 ) (984 ) (3,028 ) Gross increases related to current year tax positions 4,802 1,538 1,498 Decreases resulting from expiration of statute of limitation (1,450 ) (1,112 ) (1,564 ) Decreases resulting from settlements — (1,056 ) — Ending balance $ 30,845 $ 36,138 $ 36,552

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Activity of Related Party Transactions	The Company’s activity of related party transactions was as follows (in thousands): Years ended December 31, 2015 2014 2013 Revenues $ 10,745 $ 8,392 $ 20,140 Costs and services 10,808 8,351 4,819 As of December 31, 2015 2014 Accounts receivable $ 797 $ 1,022 Accounts payable 254 —

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Schedule of Adjusted EBITDA	The Company defines adjusted EBITDA as income or loss from operations plus depreciation, amortization, accretion, stock-based compensation expense, restructuring charges, impairment charges and acquisition costs as presented below for the years ended December 31 (in thousands): 2015 2014 2013 Adjusted EBITDA: Americas $ 698,604 $ 635,007 $ 608,718 EMEA 318,561 269,222 216,186 Asia-Pacific 254,462 209,662 175,994 Total adjusted EBITDA 1,271,627 1,113,891 1,000,898 Depreciation, amortization and accretion expense (528,929 ) (484,129 ) (431,008 ) Stock-based compensation expense (133,633 ) (117,990 ) (102,940 ) Restructuring charges — — 4,837 Acquisitions costs (41,723 ) (2,506 ) (10,855 ) Income from operations $ 567,342 $ 509,266 $ 460,932
Segment Disclosures	The Company provides the following segment disclosures related to its continuing operations as follows for the years ended December 31 (in thousands): 2015 2014 2013 Total revenues: Americas (1) $ 1,512,535 $ 1,376,103 $ 1,264,774 EMEA 698,807 637,265 525,018 (2) Asia-Pacific 514,525 430,408 362,974 2,725,867 $ 2,443,776 $ 2,152,766 Total depreciation and amortization: Americas $ 278,216 $ 261,018 $ 254,365 EMEA 117,655 114,511 90,891 (2) Asia-Pacific 129,709 106,162 87,475 $ 525,580 $ 481,691 $ 432,731 Capital expenditures: Americas $ 401,685 $ 333,315 $ 261,936 EMEA 202,322 151,634 170,365 Asia-Pacific 264,113 175,254 140,105 $ 868,120 $ 660,203 $ 572,406 __________________________ (1) Includes revenues of $1,404,648 , $1,257,661 and $1,157,790 , respectively, attributed to the U.S. for the years ended December 31, 2015, 2014 and 2013. (2) Includes the operations of Frankfurt Kleyer 90 Carrier Hotel from October 1, 2013 to December 31, 2013.
Long-Lived Assets	The Company’s long-lived assets are located in the following geographic areas as of December 31 (in thousands): 2015 2014 Americas (1) $ 3,025,450 $ 2,874,562 EMEA 1,157,304 1,135,319 Asia-Pacific 1,423,682 988,389 $ 5,606,436 $ 4,998,270 _________________________ (1) Includes $2,781,924 and $2,609,268 , respectively, of long-lived assets attributed to the U.S. as of December 31, 2015 and 2014.
Revenue Information by Category	Revenue information by category is as follows for the years ended December 31 (in thousands): 2015 2014 2013 Colocation $ 2,024,963 $ 1,829,812 $ 1,628,179 Interconnection 435,809 372,350 319,863 Managed infrastructure 97,688 105,292 97,400 Rental 10,681 10,336 4,520 Recurring revenues 2,569,141 2,317,790 2,049,962 Non-recurring revenues 156,726 125,986 102,804 $ 2,725,867 2,443,776 2,152,766

Restructuring Charges (Tables)

Restructuring Charges (Tables)	12 Months Ended
	Dec. 31, 2015
Restructuring and Related Activities [Abstract]
Summary of Accrued Restructuring Charges	A summary of the movement in the 2004 accrued restructuring charges during the year ended December 31, 2013 is outlined as follows (in thousands): Accrued restructuring charge as of December 31, 2012 $ 5,679 Accretion expense 137 Restructuring charge adjustments (4,837 ) Cash payments (979 ) Accrued restructuring charge as of December 31, 2013 $ —

Quarterly Financial Informati45

Quarterly Financial Information (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Quarterly Information	The following tables present selected quarterly information (in thousands, except per share data): 2015 Quarter Ended March 31 June 30 September 30 December 31 Revenues $ 643,174 $ 665,582 $ 686,649 $ 730,462 Gross profit 344,861 349,825 361,181 378,494 Net income (loss) attributable to Equinix 76,452 59,459 41,132 10,731 Comprehensive income (loss) attributable to Equinix (59,141 ) 104,323 (23,707 ) (10,317 ) EPS attributable to Equinix Basic EPS 1.35 1.04 0.72 0.18 Diluted EPS 1.34 1.03 0.71 0.18 2014 Quarter Ended March 31 June 30 September 30 December 31 Revenues $ 580,053 $ 605,161 $ 620,441 $ 638,121 Gross profit 292,528 312,302 316,389 324,672 Net income (loss) attributable to Equinix 41,387 11,328 42,841 (355,103 ) Comprehensive income (loss) attributable to Equinix 55,329 33,640 (97,814 ) (450,067 ) EPS attributable to Equinix Basic EPS 0.83 0.22 0.81 (6.42 ) Diluted EPS 0.81 0.22 0.79 (6.42 )

Nature of Business and Summar46

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015USD ($)service_providersmarketcontinent	Dec. 31, 2014USD ($)	Dec. 31, 2013
Item Effected [Line Items]
Number of network providers that provide internet access | service_providers	1,000
Number of markets data center operates in | market	40
Data centers operates In number of continents | continent	5
Cash equivalents maturity period (in days)	90 days
A single customer is accounted for a percentage of accounts receivable or revenues for a period	10.00%	10.00%	10.00%
Impairment charge	$ 0	$ 0
Percentage of revenue derived from recurring revenue streams	90.00%
Equity awards vesting period (in years)	4 years
Expected dividend rate (percent)	0.00%
Interest rate (percent)			8.125%
Debt issuance cost	$ 47,028,000
3.00% Convertible Subordinated Notes [Member]
Item Effected [Line Items]
Interest rate (percent)	3.00%	3.00%
4.75% Convertible Subordinated Notes [Member]
Item Effected [Line Items]
Interest rate (percent)	4.75%	4.75%
4.75% Convertible Subordinated Notes [Member]
Item Effected [Line Items]
Interest rate (percent)	4.75%	4.75%	4.75%
Minimum [Member]
Item Effected [Line Items]
Short term investment maturity (in days and years)	90 days
Maximum [Member]
Item Effected [Line Items]
Short term investment maturity (in days and years)	1 year
Executives [Member] | Minimum [Member]
Item Effected [Line Items]
Equity awards vesting period (in years)	2 years
Executives [Member] | Maximum [Member]
Item Effected [Line Items]
Equity awards vesting period (in years)	4 years
Other assets [Member] | Effect of early adoption of new accounting pronouncement [Member]
Item Effected [Line Items]
Debt issuance cost		$ (35,455,000)
Debt [Member] | Effect of early adoption of new accounting pronouncement [Member]
Item Effected [Line Items]
Debt issuance cost		$ 35,455,000

Nature of Business and Summar47

Nature of Business and Summary of Significant Accounting Policies - Schedule of Revenue by Geographical Region (Detail) - Geographic Concentration Risk [Member] - Sales [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Americas [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentages of revenue by geographic regions	55.00%	56.00%	59.00%
EMEA [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentages of revenue by geographic regions	26.00%	26.00%	24.00%
Asia-Pacific [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentages of revenue by geographic regions	19.00%	18.00%	17.00%

Nature of Business and Summar48

Nature of Business and Summary of Significant Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2015
Core systems [Member] | Minimum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	3 years
Core systems [Member] | Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	25 years
Buildings [Member] | Minimum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	12 years
Buildings [Member] | Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	50 years
Leasehold improvements [Member] | Minimum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	12 years
Leasehold improvements [Member] | Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	40 years
Personal property [Member] | Minimum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	3 years
Personal property [Member] | Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life, in years	10 years

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) ¥ / shares in Units, ¥ in Millions	Nov. 02, 2015JPY (¥)¥ / shares	Nov. 02, 2015USD ($)	Sep. 30, 2015JPY (¥)	May. 29, 2015GBP (£)market	Jan. 14, 2015USD ($)	Jul. 31, 2014USD ($)	Oct. 01, 2013USD ($)	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2015JPY (¥)	Dec. 31, 2015USD ($)	Nov. 02, 2015USD ($)	May. 29, 2015USD ($)	Apr. 25, 2011
Business Acquisition [Line Items]
Revenue																$ 2,725,867,000	$ 2,443,776,000	$ 2,152,766,000
Net income (loss) attributable to Equinix								$ 10,731,000	$ 41,132,000	$ 59,459,000	$ 76,452,000	$ (355,103,000)	$ 42,841,000	$ 11,328,000	$ 41,387,000	187,774,000	(259,547,000)	94,685,000
Goodwill												$ 1,002,129,000					1,002,129,000	1,042,153,000		$ 1,063,200,000
Net cash consideration																245,553,000	0	49,337,000
Net increase in the redemption value of the redeemable non-controlling interests																	(90,913,000)	(47,940,000)
Bit-isle [Member]
Business Acquisition [Line Items]
Percentage of outstanding shares including stock options																					97.00%
Offer price (in jpy per share) | ¥ / shares	¥ 922
Cash consideration for acquisition	¥ 33,200	$ 275,367,000
Acquisition costs																8,645,000
Revenue								21,588,000								21,588,000
Net income (loss) attributable to Equinix								$ 3,233,000								$ 229,000
Goodwill																					$ 95,444,000
Bit-isle [Member] | Customer relationships [Member]
Business Acquisition [Line Items]
Discount rate (percent)	11.00%	11.00%
Bit-isle [Member] | Trade name [Member]
Business Acquisition [Line Items]
Discount rate (percent)	12.00%	12.00%
Relief of royalty rate (percent)	0.020	0.020
Nimbo Technologies Inc. [Member]
Business Acquisition [Line Items]
Cash consideration for acquisition					$ 10,000,000
Contingent earn out period (in years)					2 years
Goodwill					$ 17,192,000
Telecity Group plc [Member]
Business Acquisition [Line Items]
Number of new markets added | market				7
Cash placed in restricted account				£ 322,851,000																		$ 475,689,000
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Business Acquisition [Line Items]
Cash consideration for acquisition							$ 50,092,000
Acquisition costs																		$ 4,794,000
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Customer contracts [Member]
Business Acquisition [Line Items]
Discount rate (percent)							9.00%
ALOG [Member]
Business Acquisition [Line Items]
Voting interests acquired (percent)																							90.00%
Indirect controlling interest (percent)																							53.00%
Acquisition of ALOG [Member]
Business Acquisition [Line Items]
Acquisition costs																	1,333,000
Percentage of ownership						10.00%
Equity interest (percent)						100.00%
Net cash consideration						$ 225,629,000
Business acquisition contingent consideration						686,000
Net increase in the redemption value of the redeemable non-controlling interests																	$ 90,966,000
Acquisition of ALOG [Member] | Riverwood and ALOG Management [Member]
Business Acquisition [Line Items]
Net cash consideration						216,484,000
Acquisition of ALOG [Member] | ALOG Employees [Member]
Business Acquisition [Line Items]
Net cash consideration						$ 8,459,000
Bridge term loan [Member]
Business Acquisition [Line Items]
Short-term debt																			¥ 46,460	386,547,000
Debt term (in years)			1 year
Bridge term loan [Member] | Bit-isle [Member]
Business Acquisition [Line Items]
Loans payable			¥ 47,500																	$ 395,339,000
Bridge term loan [Member] | Telecity Group plc [Member]
Business Acquisition [Line Items]
Short-term debt				£ 875,000,000																		1,289,000,000
Debt term (in years)				12 months
Debt extended maturity period (in years)				7 years
Commitment fees				£ 4,375,000																		$ 6,446,000

Acquisitions - Preliminary Purc

Acquisitions - Preliminary Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Nov. 02, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 01, 2013
Business Acquisition [Line Items]
Goodwill	$ 1,063,200		$ 1,002,129	$ 1,042,153
Bit-isle [Member]
Business Acquisition [Line Items]
Cash and cash equivalent		$ 33,198
Accounts receivable		7,359
Other current assets		51,038
Long-term investments		3,806
Property, plant and equipment		308,985
Goodwill		95,444
Intangible assets		111,374
Other assets		22,981
Total assets acquired		634,185
Accounts payable and accrued expenses		(15,028)
Accrued property, plant and equipment		(465)
Capital lease and other financing obligations		(108,833)
Mortgage and loans payable		(190,227)
Other current liabilities		(8,689)
Deferred tax liabilities		(32,192)
Other liabilities		(3,384)
Net assets acquired		$ 275,367
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Business Acquisition [Line Items]
Property, plant and equipment					$ 85,969
Intangible assets					10,011
Total assets acquired					95,980
Mortgage and loans payable					(42,906)
Intangible - unfavorable leases					(2,982)
Net assets acquired					$ 50,092

Acquisitions - Acquired Identif

Acquisitions - Acquired Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands	Nov. 02, 2015	Oct. 01, 2013	Dec. 31, 2015	Dec. 31, 2013
Bit-isle [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired			$ 111,374
Bit-isle [Member] | Customer relationships [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 105,434
Acquired intangible assets, Estimated useful lives (years)	13 years
Weighted-average estimated useful lives (years)	13 years
Bit-isle [Member] | Trade name [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 3,455
Acquired intangible assets, Estimated useful lives (years)	2 years
Weighted-average estimated useful lives (years)	2 years
Bit-isle [Member] | Favorable solar contracts [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 2,410
Acquired intangible assets, Estimated useful lives (years)	18 years
Weighted-average estimated useful lives (years)	18 years
Bit-isle [Member] | Other intangible assets [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired	$ 75
Acquired intangible assets, Estimated useful lives (years)	3 months
Weighted-average estimated useful lives (years)	3 months
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired				$ 10,010
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Customer contracts [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired		$ 9,363
Weighted-average estimated useful lives (years)		4 years 10 months 24 days
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Customer contracts [Member] | Minimum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		3 months 18 days
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Customer contracts [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		8 years
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Unfavorable leases [Member]
Business Acquisition [Line Items]
Fair value of intangible liabilities acquired		$ (2,982)
Acquired intangible liabilities, Estimated useful lives (years)		4 years 9 months 18 days
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Unfavorable leases [Member] | Minimum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		1 year
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Unfavorable leases [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		6 years
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Favorable leases [Member]
Business Acquisition [Line Items]
Fair value of intangible assets acquired		$ 648
Weighted-average estimated useful lives (years)		7 years 6 months
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Favorable leases [Member] | Minimum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		1 year
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member] | Favorable leases [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired intangible assets, Estimated useful lives (years)		8 years

Acquisitions - Unaudited Pro Fo

Acquisitions - Unaudited Pro Forma Combined Consolidated Statements of Operations (Detail) - Bit-isle [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Revenues	$ 2,847,411	$ 2,614,127
Net income attributable to Equinix	$ 195,501	$ (251,067)

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net income (loss)									$ 187,774,000	$ (260,726,000)	$ 96,123,000
Net (income) loss attributable to redeemable non-controlling interests									0	1,179,000	(1,438,000)
Net income (loss) attributable to Equinix, basic and diluted	$ 10,731,000	$ 41,132,000	$ 59,459,000	$ 76,452,000	$ (355,103,000)	$ 42,841,000	$ 11,328,000	$ 41,387,000	$ 187,774,000	$ (259,547,000)	$ 94,685,000
Weighted-average shares used to calculate basic EPS									57,790	52,359	49,438
Effect of dilutive securities:
Employee equity awards									693	0	678
Total dilutive potential shares									693	0	678
Weighted-average shares used to calculate diluted EPS									58,483	52,359	50,116
EPS attributable to Equinix:
Basic EPS (in dollars per share)									$ 3.25	$ (4.96)	$ 1.92
Diluted EPS (in dollars per share)									$ 3.21	$ (4.96)	$ 1.89

Earnings Per Share - Anti-dilut

Earnings Per Share - Anti-dilutive Potential Shares of Common Stock Excluded from Computation of Earnings Per Share (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive potential shares of common stock excluded from computation of earnings per share	2,065	5,505	8,299
Interest rate (percent)			8.125%
3.00% Convertible Subordinated Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate (percent)	3.00%	3.00%	3.00%
4.75% Convertible Subordinated Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate (percent)	4.75%	4.75%	4.75%
Shares related to the potential conversion of convertible subordinated notes [Member] | 3.00% Convertible Subordinated Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive potential shares of common stock excluded from computation of earnings per share	0	861	3,613
Shares related to the potential conversion of convertible subordinated notes [Member] | 4.75% Convertible Subordinated Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive potential shares of common stock excluded from computation of earnings per share	1,977	2,824	4,432
Common stock related to employee equity awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive potential shares of common stock excluded from computation of earnings per share	88	1,820	254

Assets Held for Sale (Details)

Assets Held for Sale (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total assets	$ 33,257,000	$ 0
Total liabilities	(3,535,000)	0
Held-for-sale [Member] | London 2 Data Center in London, UK (LD2) and San Jose Land Parcel [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	17,579,000	21,772,000
Net income	7,166,000	$ 9,218,000
Accounts Receivable	2,222,000
Other current assets	408,000
Property, plant and equipment	23,533,000
Goodwill	5,000,000
Intangible assets	784,000
Other assets	1,310,000
Total assets	33,257,000
Accounts payable and accrued expenses	(654,000)
Accrued property, plant and equipment	(816,000)
Other current liabilities	(435,000)
Other liabilities	(1,630,000)
Total liabilities	$ (3,535,000)

Balance Sheet Components - Cash

Balance Sheet Components - Cash, Cash Equivalents and Short-Term and Long-Term Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Investment Holdings [Line Items]
Cash	$ 1,139,554	$ 207,953
Money market funds	1,089,284	402,964
Total cash and cash equivalents	2,228,838	610,917	$ 261,894	$ 252,213
Total marketable securities	17,459	529,834
Total cash, cash equivalents and short-term and long-term investments	2,246,297	1,140,751
U.S. government securities [Member]
Investment Holdings [Line Items]
Total marketable securities	0	336,440
U.S. government agency securities [Member]
Investment Holdings [Line Items]
Total marketable securities	0	192,955
Certificates of deposit [Member]
Investment Holdings [Line Items]
Total marketable securities	14,106	439
Publicly traded equity securities [Member]
Investment Holdings [Line Items]
Total marketable securities	$ 3,353	$ 0

Balance Sheet Components - Addi

Balance Sheet Components - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents maturity period less than (in days)	P90D	P90D
Short-term investments maturity period less than (in years)	P1Y	P1Y
Aggregate capital leased assets, gross	$ 725,337	$ 585,288
Accumulated depreciation on capital leases	$ 117,338	$ 83,291
Minimum [Member]
Cash and Cash Equivalents [Line Items]
Long-term investments maturity period (in years)	P1Y	P1Y
Maximum [Member]
Cash and Cash Equivalents [Line Items]
Long-term investments maturity period (in years)	P3Y	P3Y

Balance Sheet Components - Summ

Balance Sheet Components - Summary of Cost and Estimated Fair Value of Marketable Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Amortized Cost, Due within one year	$ 12,875	$ 529,567
Amortized Cost, Due after one year through three years	1,231	439
Amortized Cost	14,106	530,006
Fair Value, Due within one year	12,875	529,395
Fair Value, Due after one year through three years	1,231	439
Fair Value, Total	$ 14,106	$ 529,834

Balance Sheet Components - Net

Balance Sheet Components - Net Unrealized Gains (Losses) on Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 17,667	$ 530,006
Gross unrealized gains	0	75
Gross unrealized losses	(208)	(247)
Fair Value	17,459	529,834
U.S. government securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		336,561
Gross unrealized gains		45
Gross unrealized losses		(166)
Fair Value	0	336,440
U.S. government agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		193,006
Gross unrealized gains		30
Gross unrealized losses		(81)
Fair Value	0	192,955
Certificates of deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,106	439
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair Value	14,106	439
Publicly traded equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,561
Gross unrealized gains	0
Gross unrealized losses	(208)
Fair Value	$ 3,353	$ 0

Balance Sheet Components - Acco

Balance Sheet Components - Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]
Accounts receivable	$ 302,316	$ 272,036
Allowance for doubtful accounts	(10,352)	(9,466)	$ (6,640)	$ (3,716)
Accounts receivable, net	$ 291,964	$ 262,570

Balance Sheet Components - Acti

Balance Sheet Components - Activities of Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	$ 9,466	$ 6,640	$ 3,716
Provision for allowance for doubtful accounts	5,037	7,093	5,819
Net write-offs	(3,438)	(3,825)	(2,833)
Impact of foreign currency exchange	(713)	(442)	(62)
Ending Balance	$ 10,352	$ 9,466	$ 6,640

Balance Sheet Components - Othe

Balance Sheet Components - Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 48,322	$ 29,501
Taxes receivable	33,979	17,071
Deferred tax assets, net	0	6,579
Other receivables	1,925	2,324
Derivative instruments	60,165	17,732
Other current assets	68,538	11,797
Other current assets, total	$ 212,929	$ 85,004

Balance Sheet Components - Prop

Balance Sheet Components - Property, Plant and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8,395,616	$ 7,388,605
Less accumulated depreciation	(2,789,180)	(2,390,335)
Property, plant and equipment, net	5,606,436	4,998,270
Core systems [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,820,772	3,252,569
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,383,387	2,074,382
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,204,900	1,053,451
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	351,697	460,259
Personal property [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	450,914	387,909
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 183,946	$ 160,035

Balance Sheet Components - Good

Balance Sheet Components - Goodwill and Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 1,063,200	$ 1,002,129	$ 1,042,153
Intangible assets, gross	357,552	262,803
Accumulated amortization	(132,987)	(115,276)
Intangible assets, net	224,565	147,527	184,182	$ 201,562
Customer contracts [Member]
Goodwill And Intangible Assets [Line Items]
Intangible assets, gross	311,581	220,674
Accumulated amortization	(117,167)	(102,074)
Favorable leases [Member]
Goodwill And Intangible Assets [Line Items]
Intangible assets, gross	22,783	24,300
Accumulated amortization	(8,909)	(7,656)
Licenses [Member]
Goodwill And Intangible Assets [Line Items]
Intangible assets, gross	9,697	9,697
Accumulated amortization	(1,942)	(1,294)
Others [Member]
Goodwill And Intangible Assets [Line Items]
Intangible assets, gross	13,491	8,132
Accumulated amortization	(4,969)	(4,252)
Reportable Geographical Components [Member] | Americas [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	460,203	463,902	471,845
Intangible assets, net	50,643	62,954	76,224	89,467
Reportable Geographical Components [Member] | EMEA [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	374,070	404,093	435,041
Intangible assets, net	44,355	62,185	82,709	84,186
Reportable Geographical Components [Member] | Asia-Pacific [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	228,927	134,134	135,267
Intangible assets, net	$ 129,567	$ 22,388	$ 25,249	$ 27,909

Balance Sheet Components - Carr

Balance Sheet Components - Carrying Amount of Goodwill by Geographical Regions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Balance, Beginning	$ 1,002,129	$ 1,042,153
Purchase accounting adjustments	112,629
Asset held for sale adjustments	(5,000)
Impact of foreign currency exchange	(46,558)	(40,024)
Balance, Ending	1,063,200	1,002,129
Reportable Geographical Components [Member] | Americas [Member]
Goodwill [Roll Forward]
Balance, Beginning	463,902	471,845
Purchase accounting adjustments	17,192
Asset held for sale adjustments	0
Impact of foreign currency exchange	(20,891)	(7,943)
Balance, Ending	460,203	463,902
Reportable Geographical Components [Member] | EMEA [Member]
Goodwill [Roll Forward]
Balance, Beginning	404,093	435,041
Purchase accounting adjustments	0
Asset held for sale adjustments	(5,000)
Impact of foreign currency exchange	(25,023)	(30,948)
Balance, Ending	374,070	404,093
Reportable Geographical Components [Member] | Asia-Pacific [Member]
Goodwill [Roll Forward]
Balance, Beginning	134,134	135,267
Purchase accounting adjustments	95,437
Asset held for sale adjustments	0
Impact of foreign currency exchange	(644)	(1,133)
Balance, Ending	$ 228,927	$ 134,134

Balance Sheet Components - Ne66

Balance Sheet Components - Net Book Value of Intangible Assets by Geographic Regions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net beginning balance	$ 147,527	$ 184,182	$ 201,562
Asset held for sale adjustments	(784)
Write-off of intangible asset	(357)
Adjustments			(2,070)
Amortization of intangibles	(27,446)	(27,756)	(27,027)
Impact of foreign currency exchange	(6,838)	(8,899)	607
Intangible assets, net ending balance	224,565	147,527	184,182
Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			10,010
New York IBX Center Purchase [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			1,100
Nimbo Technologies Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	1,089
Bit-isle [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	111,374
Reportable Geographical Components [Member] | Americas [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net beginning balance	62,954	76,224	89,467
Asset held for sale adjustments	0
Write-off of intangible asset	0
Adjustments			0
Amortization of intangibles	(11,432)	(12,257)	(12,604)
Impact of foreign currency exchange	(1,968)	(1,013)	(1,739)
Intangible assets, net ending balance	50,643	62,954	76,224
Reportable Geographical Components [Member] | Americas [Member] | Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			0
Reportable Geographical Components [Member] | Americas [Member] | New York IBX Center Purchase [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			1,100
Reportable Geographical Components [Member] | Americas [Member] | Nimbo Technologies Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	1,089
Reportable Geographical Components [Member] | Americas [Member] | Bit-isle [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	0
Reportable Geographical Components [Member] | EMEA [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net beginning balance	62,185	82,709	84,186
Asset held for sale adjustments	(784)
Write-off of intangible asset	(357)
Adjustments			(2,070)
Amortization of intangibles	(11,675)	(12,795)	(11,613)
Impact of foreign currency exchange	(5,014)	(7,729)	2,196
Intangible assets, net ending balance	44,355	62,185	82,709
Reportable Geographical Components [Member] | EMEA [Member] | Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			10,010
Reportable Geographical Components [Member] | EMEA [Member] | New York IBX Center Purchase [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			0
Reportable Geographical Components [Member] | EMEA [Member] | Nimbo Technologies Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	0
Reportable Geographical Components [Member] | EMEA [Member] | Bit-isle [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	0
Reportable Geographical Components [Member] | Asia-Pacific [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net beginning balance	22,388	25,249	27,909
Asset held for sale adjustments	0
Write-off of intangible asset	0
Adjustments			0
Amortization of intangibles	(4,339)	(2,704)	(2,810)
Impact of foreign currency exchange	144	(157)	150
Intangible assets, net ending balance	129,567	$ 22,388	25,249
Reportable Geographical Components [Member] | Asia-Pacific [Member] | Frankfurt Kleyer 90 Carrier Hotel Acquisition [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			0
Reportable Geographical Components [Member] | Asia-Pacific [Member] | New York IBX Center Purchase [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period			$ 0
Reportable Geographical Components [Member] | Asia-Pacific [Member] | Nimbo Technologies Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	0
Reportable Geographical Components [Member] | Asia-Pacific [Member] | Bit-isle [Member]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets acquired during period	$ 111,374

Balance Sheet Components - Esti

Balance Sheet Components - Estimated Future Amortization Expense Related to Intangibles (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
2,016	$ 35,298
2,017	33,644
2,018	29,690
2,019	24,978
2,020	19,217
Thereafter	81,738
Intangible assets, net	$ 224,565	$ 147,527	$ 184,182	$ 201,562

Balance Sheet Components - Ot68

Balance Sheet Components - Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred tax assets, net	$ 61,152	$ 45,134
Prepaid expenses, non-current	54,372	37,006
Debt issuance costs, net	19,709	9,022
Deposits	33,132	26,068
Derivative instruments	8,735	5,007
Other assets, non-current	11,358	6,373
Other assets	$ 188,458	$ 128,610

Balance Sheet Components - Ac69

Balance Sheet Components - Accounts Payable and Accrued Expenses (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accounts payable	$ 49,892,000	$ 30,221,000
Accrued compensation and benefits	131,204,000	115,184,000
Accrued interest	67,077,000	29,116,000
Accrued taxes	37,004,000	41,295,000
Accrued utilities and security	31,789,000	31,531,000
Accrued professional fees	18,380,000	8,148,000
Accrued repairs and maintenance	3,618,000	4,086,000
Accrued other	61,984,000	26,215,000
Accounts payable and accrued expenses	400,948,000	285,796,000
Income taxes payable	$ 14,527,000	$ 21,941,000

Balance Sheet Components - Ot70

Balance Sheet Components - Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Deferred tax liabilities, net	$ 0	$ 83,264
Deferred installation revenue	56,055	48,707
Customer deposits	23,676	13,492
Derivative instruments	79,256	810
Deferred recurring revenue	12,515	6,879
Deferred rent	3,572	2,675
Dividends payable	13,674	4,559
Asset retirement obligations	0	945
Other current liabilities	3,538	1,333
Other current liabilities, total	$ 192,286	$ 162,664

Balance Sheet Components - Ot71

Balance Sheet Components - Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Asset retirement obligations, non-current	$ 78,482	$ 63,913
Deferred tax liabilities, net	100,624	69,212
Deferred installation revenue, non-current	86,660	76,744
Deferred rent, non-current	68,787	52,968
Accrued taxes, non-current	26,763	24,726
Dividends payable, non-current	13,394	4,972
Customer deposits, non-current	4,701	4,618
Deferred recurring revenue, non-current	3,645	445
Derivative instruments	669	0
Other liabilities	6,688	7,366
Other liabilities noncurrent	$ 390,413	$ 304,964

Balance Sheet Components - Su72

Balance Sheet Components - Summary of Asset Retirement Obligation Liability (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations, beginning balance	$ 64,858	$ 59,548	$ 63,150
Additions	17,337	5,774	8,713
Adjustments	(4,676)	(871)	(14,874)
Accretion expense	3,349	2,438	2,932
Impact of foreign currency exchange	(2,386)	(2,031)	(373)
Asset retirement obligations, ending balance	$ 78,482	$ 64,858	$ 59,548

Derivatives and Hedging Activit

Derivatives and Hedging Activities - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Foreign currency exchange gain	$ (186,763,000)	$ (204,065,000)	$ (18,203,000)
Net losses reclassified from accumulated other comprehensive income (loss) to operating expenses	6,256,000
Gains reclassified from accumulated other comprehensive income (loss) to revenue	27,973,000	4,332,000
Designated as hedging instruments [Member]
Derivative [Line Items]
Foreign currency exchange gain	4,484,000
Not designated as hedging instruments [Member] | Embedded derivatives [Member]
Derivative [Line Items]
Net gain (loss) on embedded derivatives		3,807,000	4,836,000
Not designated as hedging instruments [Member] | Economic hedges of embedded derivatives [Member]
Derivative [Line Items]
Net gain (loss) on embedded derivatives	(2,287,000)	(2,602,000)	$ (4,497,000)
Not designated as hedging instruments [Member] | Foreign currency forward and option contracts [Member]
Derivative [Line Items]
Gains (losses) from foreign currency forward contracts	$ (24,319,000)	$ 12,657,000

Derivatives and Hedging Activ74

Derivatives and Hedging Activities - Summary of Cash Flow Hedge Instruments (Detail) - Cash flow hedge instruments [Member] - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Notional Amount, Derivative assets	$ 367,330	$ 281,055
Notional Amount, Derivative liabilities	47,447	0
Notional Amount, Total	414,777	281,055
Fair Value, Derivative assets	16,027	8,404
Fair Value, Derivative liabilities	(813)	0
Fair Value, Total	15,214	8,404
Accumulated other comprehensive income (loss) [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Derivative assets	34,578	8,480
Fair Value, Derivative liabilities	(19,709)	0
Fair Value, Total	14,869	$ 8,480
Net gain related to cash flow hedges recorded in accumulated other comprehensive income (loss) that is expected to be recognized in next 12 months	$ 12,940

Derivatives and Hedging Activ75

Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Instruments Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	$ 68,900	$ 22,739
Fair value of derivative assets, Gross amounts offset in the balance sheet	0	0
Fair value of derivative assets, Net amounts	68,900	22,739
Fair value of derivative assets, Gross amounts not offset in the balance sheet	(44,902)	(646)
Fair value of derivative assets, Net	23,998	22,093
Fair value of derivative liabilities, Gross Amounts	79,925	810
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts	79,925	810
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	(44,902)	(646)
Fair value of derivative liabilities, Net	35,023	164
Additional netting benefit [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross amounts offset in the balance sheet	0	0
Fair value of derivative assets, Net amounts		0
Fair value of derivative assets, Gross amounts not offset in the balance sheet	(9,512)	(508)
Fair value of derivative assets, Net	(9,512)	(508)
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts		0
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	(9,512)	(508)
Fair value of derivative liabilities, Net	(9,512)	(508)
Designated as hedging instruments [Member] | Foreign currency forward and option contracts [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	16,027
Fair value of derivative assets, Gross amounts offset in the balance sheet	0
Fair value of derivative assets, Net amounts	16,027
Fair value of derivative assets, Gross amounts not offset in the balance sheet	(813)
Fair value of derivative assets, Net	15,214
Designated as hedging instruments [Member] | Foreign currency forward contracts [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts		8,404
Fair value of derivative assets, Gross amounts offset in the balance sheet		0
Fair value of derivative assets, Net amounts		8,404
Fair value of derivative assets, Net		8,404
Fair value of derivative liabilities, Gross Amounts	813
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts	813	0
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	(813)
Fair value of derivative liabilities, Net		0
Not designated as hedging instruments [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	52,873	14,335
Fair value of derivative assets, Gross amounts offset in the balance sheet	0	0
Fair value of derivative assets, Net amounts	52,873	14,335
Fair value of derivative assets, Gross amounts not offset in the balance sheet	(34,577)	(138)
Fair value of derivative assets, Net	18,296	14,197
Fair value of derivative liabilities, Gross Amounts	79,112	810
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts	79,112	810
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	(34,577)	(138)
Fair value of derivative liabilities, Net	44,535	672
Not designated as hedging instruments [Member] | Foreign currency forward and option contracts [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts		5,153
Fair value of derivative assets, Gross amounts offset in the balance sheet		0
Fair value of derivative assets, Net amounts		5,153
Fair value of derivative assets, Gross amounts not offset in the balance sheet		(138)
Fair value of derivative assets, Net		5,015
Fair value of derivative liabilities, Gross Amounts		416
Fair value of derivative liabilities, Gross amounts offset in the balance sheet		0
Fair value of derivative liabilities, Net amounts		416
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet		(138)
Fair value of derivative liabilities, Net		278
Not designated as hedging instruments [Member] | Embedded derivatives [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	8,926	9,182
Fair value of derivative assets, Gross amounts offset in the balance sheet	0	0
Fair value of derivative assets, Net amounts	8,926	9,182
Fair value of derivative assets, Net	8,926	9,182
Fair value of derivative liabilities, Gross Amounts	1,772	4
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts	1,772	4
Fair value of derivative liabilities, Net	1,772	4
Not designated as hedging instruments [Member] | Economic hedges of embedded derivatives [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	744
Fair value of derivative assets, Gross amounts offset in the balance sheet	0
Fair value of derivative assets, Net amounts	744
Fair value of derivative assets, Net	744
Fair value of derivative liabilities, Gross Amounts	417	390
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0	0
Fair value of derivative liabilities, Net amounts	417	390
Fair value of derivative liabilities, Net	417	$ 390
Not designated as hedging instruments [Member] | Foreign currency forward contracts [Member]
Derivative [Line Items]
Fair value of derivative assets, Gross Amounts	43,203
Fair value of derivative assets, Gross amounts offset in the balance sheet	0
Fair value of derivative assets, Net amounts	43,203
Fair value of derivative assets, Gross amounts not offset in the balance sheet	(34,577)
Fair value of derivative assets, Net	8,626
Fair value of derivative liabilities, Gross Amounts	76,923
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	0
Fair value of derivative liabilities, Net amounts	76,923
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	(34,577)
Fair value of derivative liabilities, Net	$ 42,346

Fair Value Measurements - Finan

Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets, Fair Value Disclosure [Abstract]
Derivative instruments	$ 68,900	$ 22,739
Liabilities, Fair Value Disclosure [Abstract]
Derivative instruments	79,925	810
Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash	1,139,554	207,953
Derivative instruments	68,900	22,739
Total financial assets	2,315,197	1,163,490
Liabilities, Fair Value Disclosure [Abstract]
Derivative instruments	79,925	810
Fair Value, Measurements, Recurring [Member] | Money market and deposit accounts [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	1,089,284	402,964
Fair Value, Measurements, Recurring [Member] | Publicly traded equity securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	3,353
Fair Value, Measurements, Recurring [Member] | U.S. government securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		336,440
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		192,955
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	14,106	439
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Cash	1,139,554	207,953
Derivative instruments	0	0
Total financial assets	2,232,191	947,357
Liabilities, Fair Value Disclosure [Abstract]
Derivative instruments	0	0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Money market and deposit accounts [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	1,089,284	402,964
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Publicly traded equity securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	3,353
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		336,440
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government agency securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		0
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Certificates of deposit [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	0	0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Cash	0	0
Derivative instruments	68,900	22,739
Total financial assets	83,006	216,133
Liabilities, Fair Value Disclosure [Abstract]
Derivative instruments	79,925	810
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Money market and deposit accounts [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	0	0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Publicly traded equity securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agency securities [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments		192,955
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Certificates of deposit [Member]
Assets, Fair Value Disclosure [Abstract]
Financial instruments	$ 14,106	$ 439

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leased Assets [Line Items]
Weighted average effective interest rate (percent)			8.17%
Operating leases expire through various dates			2,053
Rent expense			$ 199,975	$ 105,391	$ 112,704
Minimum [Member]
Operating Leased Assets [Line Items]
Capital lease expiration period			2,015
Maximum [Member]
Operating Leased Assets [Line Items]
Capital lease expiration period			2,053
Atlanta 1 Capital Lease [Member]
Operating Leased Assets [Line Items]
Capital lease asset	$ 21,274
Atlanta 2 Capital Lease [Member]
Operating Leased Assets [Line Items]
Capital lease asset		$ 25,960
Capital lease liability		$ 26,230

Leases - Summary of Capital Lea

Leases - Summary of Capital Lease and Other Financing Obligations (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Capitalized Lease [Line Items]
Less current portion	$ (40,121)	$ (21,362)
Noncurrent portion	1,287,139	$ 1,168,042
Capital lease obligations [Member]
Schedule Of Capitalized Lease [Line Items]
2,016	74,457
2,017	73,537
2,018	74,053
2,019	74,857
2,020	74,868
Thereafter	827,789
Total minimum lease payments	1,199,561
Plus amount representing residual property value	0
Less estimated building costs	0
Less amount representing interest	(557,433)
Present value of net minimum lease payments	642,128
Less current portion	(23,435)
Noncurrent portion	618,693
Other financing obligations [Member]
Schedule Of Capitalized Lease [Line Items]
2,016	66,175
2,017	66,116
2,018	66,928
2,019	63,990
2,020	61,719
Thereafter	518,552
Total minimum lease payments	843,480
Plus amount representing residual property value	467,616
Less estimated building costs	(247)
Less amount representing interest	(625,717)
Present value of net minimum lease payments	685,132
Less current portion	(16,686)
Noncurrent portion	668,446
Capital Lease and Other Financing Obligations Total [Member]
Schedule Of Capitalized Lease [Line Items]
2,016	140,632
2,017	139,653
2,018	140,981
2,019	138,847
2,020	136,587
Thereafter	1,346,341
Total minimum lease payments	2,043,041
Plus amount representing residual property value	467,616
Less estimated building costs	(247)
Less amount representing interest	(1,183,150)
Present value of net minimum lease payments	1,327,260
Less current portion	(40,121)
Noncurrent portion	$ 1,287,139

Leases - Schedule of Minimum Fu

Leases - Schedule of Minimum Future Operating Lease Payments (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Operating Leases, Future Minimum Payments Due [Abstract]
2,016	$ 115,091
2,017	113,624
2,018	108,810
2,019	100,462
2,020	89,227
Thereafter	632,677
Total	$ 1,159,891

Debt Facilities - Summary of Lo

Debt Facilities - Summary of Loans Payable and Senior Notes (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long term debt, gross	$ 1,243,699	$ 593,471
Less the amount representing debt discount and debt issuance cost	(2,681)	(3,477)
Add the amount representing mortgage premium	1,987	2,281
Loans payable current and non current	1,243,005	592,275
Less current portion	(770,236)	(59,466)
Loans payable, noncurrent	472,769	532,809
Term A loan [Member]
Debt Instrument [Line Items]
Long term debt, gross	456,740	500,000
Bridge term loan [Member]
Debt Instrument [Line Items]
Long term debt, gross	386,547	0
Line of Credit [Member]
Debt Instrument [Line Items]
Long term debt, gross	325,622	0
Brazil financings [Member]
Debt Instrument [Line Items]
Long term debt, gross	27,113	56,863
Mortgage payable and other loans payable [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 47,677	$ 36,608

Debt Facilities - Senior Credit

Debt Facilities - Senior Credit Facility (Details) € in Thousands, ¥ in Thousands, SFr in Thousands

Dec. 08, 2015USD ($)

Apr. 30, 2015JPY (¥)

Apr. 30, 2015GBP (£)

Apr. 30, 2015USD ($)

Apr. 30, 2015EUR (€)

Apr. 30, 2015CHF (SFr)

Dec. 17, 2014USD ($)

Dec. 31, 2015JPY (¥)

Dec. 31, 2015USD ($)

Dec. 31, 2014USD ($)

Jun. 30, 2012USD ($)

Dec. 31, 2015USD ($)letter_of_credit

Dec. 31, 2014USD ($)

Dec. 31, 2013USD ($)

Dec. 31, 2015GBP (£)

Dec. 31, 2015USD ($)

Dec. 31, 2015EUR (€)

Dec. 31, 2015CHF (SFr)

Dec. 08, 2015GBP (£)

Dec. 08, 2015USD ($)

Debt Instrument [Line Items]

Effective interest rate (percent)

8.17%

8.17%

8.17%

8.17%

8.17%

Repayment of debt

$ 715,270,000

$ 153,473,000

$ 52,500,000

Interest rate (percent)

8.125%

Line of Credit [Member] | Minimum [Member]

Debt Instrument [Line Items]

Quarterly facility fee (percent)

0.30%

Line of Credit [Member] | Maximum [Member]

Debt Instrument [Line Items]

Quarterly facility fee (percent)

0.40%

Line of Credit [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Margin rate (percent)

1.00%

Line of Credit [Member] | Senior Credit Facility [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 1,500,000,000

Line of Credit [Member] | Term A Loan Facility [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 500,000,000

Debt term (in years)

5 years

LIne of credit outstanding

¥ 11,437,306

$ 500,000,000

500,000,000

£ 86,918,000

$ 456,740,000

€ 173,622

SFr 44,855

Repayment of debt

110,740,000

Quarterly payment amount

10,000,000

Balloon payment due at end of term

$ 300,000,000

$ 300,000,000

Repayment of debt

$ 490,000,000

Proceeds from issuance of debt

¥ 11,924,000

£ 92,586,000

$ 490,000,000

€ 184,945

SFr 47,780

Periodic payment factor (percent)

2.00%

2.00%

2.00%

2.00%

2.00%

Periodic payment factor denominator

0.98

0.98

0.98

0.98

0.98

Weighted average interest rate during period (percent)

1.68%

1.68%

1.68%

1.68%

1.68%

Unamortized discount

$ 1,031,000

Line of Credit [Member] | Term A Loan Facility [Member] | Federal Funds Rate [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.50%

Line of Credit [Member] | Term A Loan Facility [Member] | LIBOR [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

1.25%

Line of Credit [Member] | Term A Loan Facility [Member] | LIBOR [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

1.75%

Line of Credit [Member] | Term A Loan Facility [Member] | Base Rate [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.25%

Line of Credit [Member] | Term A Loan Facility [Member] | Base Rate [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.75%

Line of Credit [Member] | Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 1,000,000,000

$ 550,000,000

$ 1,500,000,000

Debt term (in years)

5 years

LIne of credit outstanding

325,622,000

Repayment of debt

20,000,000

Proceeds from issuance of debt

¥ 12,094,000

$ 100,622,000

$ 245,000,000

Increase in borrowing capacity

$ 500,000,000

Remaining borrowing capacity

$ 1,119,047,000

Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member]

Debt Instrument [Line Items]

Effective interest rate (percent)

1.25%

1.25%

1.25%

1.25%

1.25%

Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member]

Debt Instrument [Line Items]

Effective interest rate (percent)

1.60%

1.60%

1.60%

1.60%

1.60%

Line of Credit [Member] | Revolving Credit Facility [Member] | Letter of Credit [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 150,000,000

LIne of credit outstanding

$ 55,331,000

Number of irrevocable letters of credit | letter_of_credit

30

Line of Credit [Member] | Revolving Credit Facility [Member] | Letter of Credit [Member] | Minimum [Member]

Debt Instrument [Line Items]

Quarterly facility fee (percent)

0.25%

Line of Credit [Member] | Revolving Credit Facility [Member] | Letter of Credit [Member] | Maximum [Member]

Debt Instrument [Line Items]

Quarterly facility fee (percent)

0.35%

Line of Credit [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.95%

Line of Credit [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

1.60%

Line of Credit [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Letter of Credit [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

1.00%

Line of Credit [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Letter of Credit [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

1.40%

Line of Credit [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.00%

Line of Credit [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.60%

Line of Credit [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Letter of Credit [Member] | Minimum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.25%

Line of Credit [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Letter of Credit [Member] | Maximum [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.75%

Line of Credit [Member] | Term B Loan Commitments [Member]

Debt Instrument [Line Items]

LIne of credit outstanding

$ 0

Periodic payment as a percentage of original principal

0.25%

Line of Credit [Member] | USD Term B Loan Facility [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 250,000,000

Debt term (in years)

7 years

Original issue discount (percent)

0.25%

0.25%

Line of Credit [Member] | USD Term B Loan Facility [Member] | Federal Funds Rate [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.50%

Line of Credit [Member] | USD Term B Loan Facility [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.75%

Margin rate (percent)

3.25%

Line of Credit [Member] | Sterling Term B Loan Commitment [Member]

Debt Instrument [Line Items]

Maximum borrowing capacity

£ 300,000,000

$ 442,020,000

Debt term (in years)

7 years

Original issue discount (percent)

0.50%

0.50%

Line of Credit [Member] | Sterling Term B Loan Commitment [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Variable rate (percent)

0.75%

Margin rate (percent)

3.75%

Minimum variable rate (percent)

0.75%

Debt Facilities - Bridge Term L

Debt Facilities - Bridge Term Loan (Details) - Bridge term loan [Member] $ in Thousands	Sep. 01, 2016	Sep. 30, 2015JPY (¥)	Dec. 31, 2015JPY (¥)	Dec. 31, 2015USD ($)	Oct. 31, 2015JPY (¥)	Oct. 31, 2015USD ($)	Aug. 31, 2016	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity		¥ 47,500,000,000							$ 395,200
Proceeds from issuance of debt			¥ 19,200,000,000	$ 159,744	¥ 27,260,000,000	$ 226,803
Short-term debt			¥ 46,460,000,000					$ 386,547
Debt term (in years)		1 year
Initial payment period (in months)		10 months
Tokyo Interbank Offered Rate [Member] | Forecast [Member]
Debt Instrument [Line Items]
Variable rate (percent)	1.75%						0.40%

Debt Facilities - U.S. Financin

Debt Facilities - U.S. Financing (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2014	Jun. 30, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 08, 2015	Dec. 17, 2014
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 289,000	$ 156,990,000	$ 108,501,000
Line of Credit [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Margin rate (percent)		1.00%
Line of Credit [Member] | Minimum [Member]
Debt Instrument [Line Items]
Quarterly facility fee (percent)		0.30%
Line of Credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Quarterly facility fee (percent)		0.40%
Line of Credit [Member] | U.S. Term Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 200,000,000
Repayment of debt	$ 110,000,000
Line of Credit [Member] | U.S. Term Loan [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Variable rate (percent)		0.50%
Line of Credit [Member] | U.S. Term Loan [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Variable rate (percent)		1.25%
Line of Credit [Member] | U.S. Term Loan [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Variable rate (percent)		0.25%
Line of Credit [Member] | U.S. Term Loan [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Variable rate (percent)		2.00%
Line of Credit [Member] | U.S. Term Loan [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Variable rate (percent)		1.00%
Line of Credit [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 550,000,000				$ 1,500,000,000	$ 1,000,000,000
Repayment of debt			$ 20,000,000
Loss on debt extinguishment	$ 2,534,000
Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Variable rate (percent)		0.95%
Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Variable rate (percent)		0.00%
Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Variable rate (percent)		1.60%
Line of Credit [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Variable rate (percent)		0.60%
Line of Credit [Member] | U.S. Financing [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 750,000,000

Debt Facilities - Brazil Financ

Debt Facilities - Brazil Financings (Details) $ in Thousands	1 Months Ended
	Nov. 30, 2013USD ($)	Jun. 30, 2012USD ($)	Dec. 31, 2015	Nov. 30, 2013BRL	Jun. 30, 2012BRL
Debt Instrument [Line Items]
Effective interest rate (percent)			8.17%
Line of Credit [Member] | 2013 Brazil Financing [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 25,536			BRL 60,318,000
Debt term (in years)	5 years
Variable rate (percent)	2.25%
Effective interest rate (percent)			16.39%
Line of Credit [Member] | 2012 Brazil Financing [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 48,807			BRL 100,000,000
Debt term (in years)		5 years
Variable rate (percent)		2.75%
Effective interest rate (percent)			16.89%

Debt Facilities - Mortgage Paya

Debt Facilities - Mortgage Payable (Details) - USD ($)	Dec. 31, 2015	Oct. 31, 2013
Debt Instrument [Line Items]
Effective interest rate (percent)	8.17%
Mortgage Payable [Member]
Debt Instrument [Line Items]
Loans payable		$ 42,906,000
Effective interest rate (percent)		4.25%

Debt Facilities - Schedule of C

Debt Facilities - Schedule of Convertible Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2009
Debt Instrument [Line Items]
Interest rate (percent)			8.125%
Long term debt, gross	$ 1,243,699	$ 593,471
Less the amount representing debt discount and debt issuance cost	(2,681)	$ (3,477)
Total long term debt	$ 5,245,768
4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	4.75%	4.75%	4.75%
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)				4.75%
Long term debt, gross	$ 150,082	$ 157,885
Less the amount representing debt discount and debt issuance cost	(3,961)	(12,656)
Total long term debt	$ 146,121	$ 145,229

Debt Facilities - Convertible D

Debt Facilities - Convertible Debt (Details)	1 Months Ended					3 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)$ / sharesshares	Nov. 30, 2014$ / shares	Oct. 31, 2014USD ($)$ / sharesshares	Jun. 30, 2014USD ($)shares	Jun. 30, 2009USD ($)$ / shares	Jun. 30, 2014USD ($)	Dec. 31, 2015USD ($)Days$ / sharesshares	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2009USD ($)$ / sharesshares	Sep. 30, 2015$ / shares	Aug. 31, 2015$ / shares	Sep. 30, 2014$ / shares	Dec. 31, 2008$ / shares	Sep. 30, 2007USD ($)
Debt Instrument [Line Items]
Interest rate (percent)									8.125%
Repayment of debt							$ 715,270,000	$ 153,473,000	$ 52,500,000
Loss on debt extinguishment							$ 289,000	$ 156,990,000	$ 108,501,000
Common shares reserved for issuance | shares	11,387,095,000						11,387,095,000
3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	3.00%						3.00%	3.00%	3.00%
4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	4.75%						4.75%	4.75%	4.75%
Common shares reserved for issuance | shares	1,960,896,000						1,960,896,000
Convertible Subordinated Debt [Member] | 3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued															$ 395,986,000
Interest rate (percent)				3.00%		3.00%									3.00%
Value of shares issued in exchange for convertible subordinated notes			$ 178,741,000	$ 217,199,000
Shares issued in exchange for convertible subordinated notes | shares			1,595,496	1,948,578
Repayment of debt				$ 5,387,000
Loss on debt extinguishment						$ 4,210,000		$ 51,183,000
Conversion ratio (in shares per $1,000)			0.0089264
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued					$ 373,750,000
Interest rate (percent)					4.75%
Value of shares issued in exchange for convertible subordinated notes	$ 7,803,000			$ 215,830,000
Shares issued in exchange for convertible subordinated notes | shares	101,947			2,411,851
Repayment of debt	$ 1,000			$ 51,671,000
Loss on debt extinguishment	$ 289,000						$ 289,000	$ 46,973,000
Conversion ratio (in shares per $1,000)	0.0130655	0.0122736			0.0118599
Company election to satisfy obligation in cash (percent)					100.00%
Adjusted conversion price per share | $ / shares	$ 76.54	$ 81.48	$ 110.85		$ 84.32		$ 76.54			$ 114.82	$ 104.14	$ 76.54	$ 81.48	$ 84.32
Maximum number of shares issuable upon conversion of all outstanding convertible debt | shares	1,960,896						1,960,896
Holders election to satisfy obligation in cash (percent)					100.00%
Remaining life (in years)							5 months 15 days
Capped call premium, total										$ 49,664,000
Common shares reserved for issuance | shares										4,432,638
Capped call redemption (shares) | shares			1,294,192
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member] | Condition One [Member]
Debt Instrument [Line Items]
Adjusted conversion price per share | $ / shares	$ 104.14						$ 104.14
Trading period, in days | Days							20
Consecutive trading days							30 days
Percentage of trading price of convertible subordinated notes, maximum							130.00%
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member] | Condition Two [Member]
Debt Instrument [Line Items]
Trading period, in days | Days							5
Consecutive trading days							10 days
Percentage of trading price of convertible subordinated notes, maximum							98.00%

Debt Facilities - Components of

Debt Facilities - Components of Convertible Subordinates Notes (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long term debt, gross	$ 1,243,699	$ 593,471
Less the amount representing debt discount and debt issuance cost	(2,681)	(3,477)
Total long term debt	5,245,768
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Equity component	42,091	44,278
Long term debt, gross	150,082	157,885
Less the amount representing debt discount and debt issuance cost	(3,961)	(12,656)
Total long term debt	$ 146,121	$ 145,229

Debt Facilities - Components 89

Debt Facilities - Components of Total Interest Expense Recognized Related to Convertible Subordinated Notes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Interest charges incurred	$ 309,998	$ 289,557	$ 259,400
Effective interest rate of the liability component (percent)	8.17%
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Contractual interest expense	$ 7,501	10,976
Amortization of debt issuance costs	428	629
Amortization of debt discount	8,060	10,448
Interest charges incurred	$ 15,989	$ 22,053
Effective interest rate of the liability component (percent)	10.65%	10.88%

Debt Facilities - Summary of Se

Debt Facilities - Summary of Senior Notes (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Nov. 30, 2014	Dec. 31, 2013	Mar. 31, 2013
Debt Instrument [Line Items]
Long term debt, gross	$ 1,243,699	$ 593,471
Total long term debt	5,245,768
Interest rate (percent)				8.125%
Senior Notes [Member]
Debt Instrument [Line Items]
Long term debt, gross	3,850,000	2,750,000
Less amount representing debt issuance cost	(45,366)	(32,954)
Total long term debt	3,804,634	2,717,046
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 1,000,000	1,000,000
Interest rate (percent)	5.375%				5.375%
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 750,000	750,000
Interest rate (percent)	5.375%		5.375%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 500,000	500,000
Interest rate (percent)	4.875%				4.875%
Senior Notes [Member] | 5.75% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 500,000	$ 500,000
Interest rate (percent)	5.75%
Senior Notes [Member] | 5.875% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Long term debt, gross	$ 1,100,000
Less amount representing debt issuance cost	$ (16,904)
Interest rate (percent)	5.875%

Debt Facilities - Senior Notes

Debt Facilities - Senior Notes (Details) - USD ($)	1 Months Ended				3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Nov. 30, 2014	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jul. 31, 2011
Debt Instrument [Line Items]
Interest rate (percent)								8.125%
Repayment of debt						$ 715,270,000	$ 153,473,000	$ 52,500,000
Unamortized premium	$ 1,987,000	$ 2,281,000			$ 2,281,000	1,987,000	2,281,000
Accrued and unpaid interest	67,077,000	29,116,000			29,116,000	67,077,000	29,116,000
Loss on debt extinguishment						289,000	156,990,000	$ 108,501,000
Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 45,366,000	32,954,000			32,954,000	$ 45,366,000	32,954,000
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued			$ 750,000,000
Interest rate (percent)	5.375%		5.375%			5.375%
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member] | Debt Instrument Redemption Period Prior to January 1, 2018 [Member]
Debt Instrument [Line Items]
Redemption price, percentage			100.00%
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member] | Maximum [Member] | Debt Instrument Redemption Period Prior to January 1, 2018 [Member]
Debt Instrument [Line Items]
Applicable premium as a percentage of principal amount			1.00%
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member] | Treasury Rate [Member] | Debt Instrument Redemption Period Prior to January 1, 2018 [Member]
Debt Instrument [Line Items]
Variable redemption price percentage			0.50%
Senior Notes [Member] | 5.375% Senior Notes due 2022 [Member] | Redemption by Company of up to 35% of Aggregate Principal [Member] | Debt Instrument Redemption Period Prior to January 1, 2018 [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount for redemption			35.00%
Redemption price, percentage			105.375%
Senior notes indenture outstanding (percent)			65.00%
Redemption period			90 days
Senior Notes [Member] | 5.750% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued			$ 500,000,000
Interest rate (percent)			5.75%
Senior Notes [Member] | 5.750% Senior Notes due 2025 [Member] | Debt Instrument Redemption Period Prior to January 1, 2020 [Member]
Debt Instrument [Line Items]
Redemption price, percentage			100.00%
Senior Notes [Member] | 5.750% Senior Notes due 2025 [Member] | Maximum [Member] | Debt Instrument Redemption Period Prior to January 1, 2020 [Member]
Debt Instrument [Line Items]
Applicable premium as a percentage of principal amount			1.00%
Senior Notes [Member] | 5.750% Senior Notes due 2025 [Member] | Treasury Rate [Member] | Debt Instrument Redemption Period Prior to January 1, 2020 [Member]
Debt Instrument [Line Items]
Variable redemption price percentage			0.50%
Senior Notes [Member] | 5.750% Senior Notes due 2025 [Member] | Redemption by Company of up to 35% of Aggregate Principal [Member] | Debt Instrument Redemption Period Prior to January 1, 2018 [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount for redemption			35.00%
Redemption price, percentage			105.75%
Senior notes indenture outstanding (percent)			65.00%
Redemption period			90 days
Senior Notes [Member] | 5.375% Senior Notes due 2022 and 5.750% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 14,622,000					$ 14,622,000
Senior Notes [Member] | 5.875% Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued	$ 1,100,000,000					$ 1,100,000,000
Interest rate (percent)	5.875%					5.875%
Redemption price, percentage	100.00%
Unamortized debt issuance costs	$ 16,904,000					$ 16,904,000
Senior Notes [Member] | 5.875% Senior Notes Due 2026 [Member] | Debt Instrument Redemption Period Prior to January 15, 2021 [Member]
Debt Instrument [Line Items]
Redemption price, percentage	100.00%
Senior Notes [Member] | 5.875% Senior Notes Due 2026 [Member] | Maximum [Member] | Debt Instrument Redemption Period Prior to January 15, 2021 [Member]
Debt Instrument [Line Items]
Applicable premium as a percentage of principal amount	1.00%					1.00%
Senior Notes [Member] | 5.875% Senior Notes Due 2026 [Member] | Treasury Rate [Member] | Debt Instrument Redemption Period Prior to January 15, 2021 [Member]
Debt Instrument [Line Items]
Variable redemption price percentage	0.50%
Senior Notes [Member] | 4.875% Senior Notes Due 2020 and 5.375% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued				$ 1,500,000,000
Unamortized debt issuance costs	$ 13,865,000					$ 13,865,000
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued				$ 500,000,000
Interest rate (percent)	4.875%			4.875%		4.875%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member] | Debt Instrument Redemption Period Prior to April 1, 2017 [Member]
Debt Instrument [Line Items]
Redemption price, percentage				100.00%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member] | Maximum [Member] | Debt Instrument Redemption Period Prior to April 1, 2017 [Member]
Debt Instrument [Line Items]
Applicable premium as a percentage of principal amount				1.00%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member] | Treasury Rate [Member] | Debt Instrument Redemption Period Prior to April 1, 2017 [Member]
Debt Instrument [Line Items]
Variable redemption price percentage				0.50%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member] | Redemption by Company of up to 35% of Aggregate Principal [Member] | Debt Instrument Redemption Period Prior to January 15, 2019 [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount for redemption	35.00%
Redemption price, percentage	105.875%
Senior notes indenture outstanding (percent)	65.00%
Senior Notes [Member] | 4.875% Senior Notes due 2020 [Member] | Redemption by Company of up to 35% of Aggregate Principal [Member] | Debt Instrument Redemption Period Prior to April 1, 2016 [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount for redemption				35.00%
Redemption price, percentage				104.875%
Senior notes indenture outstanding (percent)				65.00%
Redemption period				90 days
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued				$ 1,000,000,000
Interest rate (percent)	5.375%			5.375%		5.375%
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member] | Debt Instrument Redemption Period Prior to April 1, 2018 [Member]
Debt Instrument [Line Items]
Redemption price, percentage				100.00%
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member] | Maximum [Member] | Debt Instrument Redemption Period Prior to April 1, 2018 [Member]
Debt Instrument [Line Items]
Applicable premium as a percentage of principal amount				1.00%
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member] | Treasury Rate [Member] | Debt Instrument Redemption Period Prior to April 1, 2018 [Member]
Debt Instrument [Line Items]
Variable redemption price percentage				0.50%
Senior Notes [Member] | 5.375% Senior Notes due 2023 [Member] | Redemption by Company of up to 35% of Aggregate Principal [Member] | Debt Instrument Redemption Period Prior to April 1, 2016 [Member]
Debt Instrument [Line Items]
Percentage of aggregate principal amount for redemption				35.00%
Redemption price, percentage				105.375%
Senior notes indenture outstanding (percent)				65.00%
Redemption period				90 days
Senior Notes [Member] | 7.00% Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Aggregate principal debt amount issued		750,000,000			750,000,000		750,000,000		$ 750,000,000
Interest rate (percent)									7.00%
Repayment of debt		866,861,000
Unamortized premium		93,965,000			93,965,000		93,965,000
Accrued and unpaid interest		$ 22,896,000			22,896,000		22,896,000
Loss on debt extinguishment					$ 103,273,000		$ 103,273,000

Debt Facilities - Summary of 92

Debt Facilities - Summary of Senior Notes Redemption Price Percentage (Detail) - Senior Notes [Member]	1 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015
5.375% Senior Notes due 2022 [Member] | Debt Instrument Redemption Period 2018 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		104.031%
5.375% Senior Notes due 2022 [Member] | Debt Instrument Redemption Period 2019 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		102.688%
5.375% Senior Notes due 2022 [Member] | Debt Instrument Redemption Period 2020 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		101.344%
5.375% Senior Notes due 2022 [Member] | Debt Instrument Redemption Period 2021 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.00%
5.750% Senior Notes due 2025 [Member] | Debt Instrument Redemption Period 2020 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		102.875%
5.750% Senior Notes due 2025 [Member] | Debt Instrument Redemption Period 2021 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		101.917%
5.750% Senior Notes due 2025 [Member] | Debt Instrument Redemption Period 2022 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.958%
5.750% Senior Notes due 2025 [Member] | Debt Instrument Redemption Period 2023 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.00%
5.875% Senior Notes Due 2026 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage	100.00%
5.875% Senior Notes Due 2026 [Member] | Debt Instrument Redemption Period 2021 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		102.938%
5.875% Senior Notes Due 2026 [Member] | Debt Instrument Redemption Period 2022 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		101.958%
5.875% Senior Notes Due 2026 [Member] | Debt Instrument Redemption Period 2023 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.979%
5.875% Senior Notes Due 2026 [Member] | Debt Instrument Redemption Period 2024 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.00%
4.875% Senior Notes due 2020 [Member] | Debt Instrument Redemption Period 2017 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		102.438%
4.875% Senior Notes due 2020 [Member] | Debt Instrument Redemption Period 2018 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		101.219%
4.875% Senior Notes due 2020 [Member] | Debt Instrument Redemption Period 2019 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.00%
5.375% Senior Notes due 2023 [Member] | Debt Instrument Redemption Period 2018 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		102.688%
5.375% Senior Notes due 2023 [Member] | Debt Instrument Redemption Period 2019 [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		101.792%
5.375% Senior Notes due 2023 [Member] | Debt Instrument Redemption Period 2020 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.896%
5.375% Senior Notes due 2023 [Member] | Debt Instrument Redemption Period 2021 and thereafter [Member]
Debt Instrument, Redemption [Line Items]
Redemption price, percentage		100.00%

Debt Facilities - Loss on debt

Debt Facilities - Loss on debt Extinguishment (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jul. 31, 2011	Jun. 30, 2009	Sep. 30, 2007
Debt Instrument [Line Items]
Loss on debt extinguishment				$ 289	$ 156,990	$ 108,501
Interest rate (percent)						8.125%
4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	4.75%	4.75%		4.75%	4.75%	4.75%
8.125% senior notes due 2018 [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment						$ 93,602
Redemption premium						80,925
Write-off of unamortized debt issuance costs						8,927
Other transaction-related fees						$ 3,750
3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Interest rate (percent)	3.00%	3.00%		3.00%	3.00%	3.00%
Convertible Subordinated Debt [Member] | 4.75% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment	$ 289			$ 289	$ 46,973
Interest rate (percent)								4.75%
Convertible Subordinated Debt [Member] | 3.00% Convertible Subordinated Notes [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 4,210		51,183
Interest rate (percent)			3.00%						3.00%
Senior Notes [Member] | 7.00% Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment		$ 103,273			103,273
Interest rate (percent)							7.00%
Redemption premium					93,965
Write-off of unamortized debt issuance costs					9,307
U.S. Financing [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Prepayment and termination fees					$ 2,534
London 4 and 5 IBX data centers [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment						$ 13,189
New York 5 and 6 IBX data centers [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment						$ 1,710

Debt Facilities - Summary of Ma

Debt Facilities - Summary of Maturities of Debt Facilities (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
2,016	$ 920,125
2,017	51,048
2,018	47,615
2,019	339,329
2,020	503,224
Thereafter	3,384,427
Total long term debt	$ 5,245,768

Debt Facilities - Fair Value of

Debt Facilities - Fair Value of Debt Facilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Mortgage and loans payable	$ 916,602	$ 553,045
Convertible debt	151,997	162,159
Senior notes	3,954,000	2,790,023
Revolving credit line	$ 325,617	$ 0

Debt Facilities - Interest Char

Debt Facilities - Interest Charges (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Disclosure [Abstract]
Interest expense	$ 299,055	$ 270,553	$ 248,792
Interest capitalized	10,943	19,004	10,608
Interest charges incurred	$ 309,998	$ 289,557	$ 259,400

Redeemable Non-Controlling In97

Redeemable Non-Controlling Interests (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	$ 0	$ 123,902
Net loss attributable to redeemable non-controlling interest	0	(1,179)	$ 1,438
Other comprehensive income attributable to redeemable non-controlling interests	$ 0	1,810	(7,526)
Increase in redemption value of non-controlling interests		90,913	47,940
Impact of foreign currency translation		1,724
Exercise of vested and outstanding ALOG stock options		8,459
Purchase price of redeemable non-controlling interests		(225,629)
Ending balance		$ 0	$ 123,902

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	Oct. 28, 2015	Jul. 29, 2015	May. 07, 2015	Feb. 19, 2015	Dec. 31, 2015	Nov. 30, 2015	Sep. 30, 2015	Oct. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Nov. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares authorized					300,000,000				300,000,000	300,000,000
Preferred Stock, Shares authorized					100,000,000				100,000,000	100,000,000
Preferred Stock, Shares issued					0				0	0
Preferred Stock, Shares outstanding					0				0	0
Issuance of common stock in public offering of common stock, shares						2,995,000
Issuance of common stock in public offering of common stock						$ 829,496,000			$ 829,496,000
Underwriting discounts and commissions incurred in issuance of common stock in public offering of common stock						32,344,000
Offering costs incurred in issuance of common stock in public offering of common stock						$ 660,000
Interest rate (percent)											8.125%
Total consideration for common stock repurchase										$ 297,958,000	$ 48,799,000
Treasury stock re-issued											6,000
Short term dividend payable					$ 13,674,000				13,674,000	4,559,000
Long term dividend payable					13,394,000				13,394,000	$ 4,972,000
Dividends declared per share (in dollars per share)	$ 1.69	$ 1.69	$ 1.69	$ 1.69
Dividends paid									393,584,000
Over-Allotment Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock in public offering of common stock, shares						391,000
Special Distribution [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Special distribution, amount							$ 627,000,000	$ 416,000,000
Special distribution, per share (in dollars per share)							$ 10.95	$ 7.57
Closing price measurement period (in days)							3 days	3 days
Value of shares distributed per share (in dollars per share)							$ 297.03	$ 224.45
Common stock shares issued							1,688,411	1,482,419
Common stock issued amount							$ 125,486,000	$ 83,266,000
Special distribution, payable date							Nov. 10, 2015	Nov. 25, 2014
Record date							Oct. 8, 2015	Oct. 27, 2014
Maximum percentage of total distribution payable to all stockholders								20.00%
Short term dividend payable					13,674,000				13,674,000
Long term dividend payable					$ 13,394,000				$ 13,394,000
2013 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount authorized under the share repurchase program											$ 500,000,000
Number of common stock shares repurchased during the period										1,517,743	288,739
Average price of common stock shares repurchased (in dollars per share)										$ 196.32	$ 169.01
Total consideration for common stock repurchase										$ 297,958,000	$ 48,799,000
2013 Share Repurchase Program [Member] | Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock re-issued (shares)									7,348
Treasury stock re-issued									$ 1,807,000
2011 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount authorized under the share repurchase program														$ 250,000,000
Number of common stock shares repurchased during the period												131,489	870,421
Average price of common stock shares repurchased (in dollars per share)												$ 101.64	$ 99.57
Total consideration for common stock repurchase												$ 100,030,000
Treasury stock re-issued (shares)										355,477	8,266	638,167
Treasury stock re-issued										$ 66,424,000	$ 811,000	$ 63,354,000
4.75% Convertible Subordinated Notes and 3.00% Convertible Subordinated Notes [Member] | 2013 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock re-issued (shares)										1,752,615
Treasury stock re-issued										$ 345,858,000
3.00% Convertible Subordinated Notes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Interest rate (percent)					3.00%				3.00%	3.00%
4.75% Convertible Subordinated Notes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Interest rate (percent)					4.75%				4.75%	4.75%
Shares issued in exchange for convertible subordinated notes					101,947
4.75% Convertible Subordinated Notes [Member] | 2013 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock re-issued (shares)									11,784
Treasury stock re-issued									$ 3,546,000
4.75% Convertible Subordinated Notes [Member] | 2011 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Interest rate (percent)										4.75%
2.50% Convertible Subordinated Notes [Member] | 2011 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Interest rate (percent)												2.50%
Series A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Shares authorized					25,000,000				25,000,000
Series A-1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Shares authorized					25,000,000				25,000,000
Undesignated [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Shares authorized					50,000,000				50,000,000

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Reserve for Authorized but Unissued Shares of Common Stock (Detail) - shares	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance	11,387,095,000
Interest rate (percent)			8.125%
Common stock options and restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance	5,848,288,000
Common stock employee purchase plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance	3,577,911,000
4.75% Convertible Subordinated Notes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance	1,960,896,000
Interest rate (percent)	4.75%	4.75%	4.75%

Stockholders' Equity - Componen

Stockholders' Equity - Components of Accumulated Other Comprehensive Loss (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 2,270,131
Ending Balance	2,745,386
Foreign currency translation adjustment (CTA) loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(336,946)
Net Change	(186,763)
Ending Balance	(523,709)
Unrealized gain (loss) on cash flow hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	6,603
Net Change	4,550
Ending Balance	11,153
Net investment hedge CTA gain [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	0
Net Change	4,484
Ending Balance	4,484
Unrealized gain (loss) on available for sale securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(99)
Net Change	(40)
Ending Balance	(139)
Unamortized gain (loss) on defined benefit plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,001)
Net Change	1,153
Ending Balance	(848)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(332,443)
Net Change	(176,616)
Ending Balance	$ (509,059)

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands

Sep. 28, 2015

Nov. 25, 2014

Oct. 01, 2005

Sep. 30, 2005

Jul. 31, 2014

Jul. 31, 2011

May. 31, 2011

May. 31, 2010

Jun. 30, 2004

Sep. 30, 2001

May. 31, 2000

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Cash consideration for acquisition

$ 0

$ 297,958

$ 48,799

Shares reserved for issuance

11,387,095,000

Share-based compensation expense not yet recognized

$ 201,206

Expected recognized period (in years)

2 years 30 days

Stock-based compensation expense

$ 133,633

117,990

102,940

Capitalized stock-based compensation expense

2,987

$ 3,958

3,305

Acquisition of ALOG [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Cash consideration for acquisition

$ 8,459

Bit-isle [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock-based compensation expense

$ 1,191

ALOG Equity Awards [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock options granted

885,840

Weighted-average exercise price

$ 6.35

Weighted-average fair value per share

$ 1.53

2012 ALOG Equity Awards [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of shares available for grant

18,421,648

Number of shares immediately vested

4,711,808

2000 Equity Incentive Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of shares authorized

16,636,172

Number of shares available for grant

3,628,457

Percentage of fair market value of common stock on the grant date

85.00%

100.00%

Stock option expiration from grant date

7 years

10 years

Vesting period (in years)

4 years

2000 Director Option Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of shares authorized

594,403

Number of shares available for grant

505,646

Percentage of fair market value of common stock on the grant date

100.00%

Stock option expiration from grant date

10 years

2001 Supplemental Stock Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of shares authorized

1,494,275

Number of shares available for grant

260,498

Stock option expiration from grant date

7 years

10 years

Vesting period (in years)

4 years

Minimum percentage of fair value of grant

85.00%

Common stock employee purchase plans [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Number of shares authorized

500,000

Number of additional shares authorized

9,020

3,197

Number of shares available for grant

3,577,911

Yearly increase in shares available for grant (percent)

2.00%

Percentage of purchase price reductions

15.00%

Offering period (in months)

24 months

Offering interval (in months)

6 months

Purchase discount from market price (percent)

85.00%

Restricted Stock Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Restricted stock units vested and released, net

$ 157,605

$ 141,980

$ 147,119

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Option Activity (Detail) - Equinix Equity Awards [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options outstanding, beginning balance (in shares)	77,934	148,055	296,529
Stock options exercised (in shares)	(41,889)	(71,780)	(147,819)
Stock options canceled (in shares)	(250)		(655)
Stock options, Additional shares granted due to special distribution (in shares)	1,454	1,659
Stock options outstanding, ending balance (in shares)	37,249	77,934	148,055
Stock options vested and exercisable, outstanding	37,249
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Stock options outstanding, Weighted average exercise price per share, beginning balance (in dollars per share)	$ 73.84	$ 73.99	$ 68.68
Stock options exercised, Weighted average exercise price per share (in dollars per share)	64.18	72.44	63.66
Stock options canceled, Weighted average exercise price per share (in dollars per share)	41.12		3.06
Stock options, Additional shares granted due to special distribution, Weighted average exercise price per share (in dollars per share)	0	0
Stock options outstanding Weighted average exercise price per share, ending balance (in dollars per share)	82.06	$ 73.84	$ 73.99
Stock options vested and exercisable, Weighted average exercise price per share (in dollars per share)	$ 82.06
Stock options outstanding, weighted average remaining contractual life (years)	1 year 8 months 20 days
Stock options vested and exercisable, Weighted average remaining contractual life (years)	1 year 8 months 20 days
Stock options vested and exercisable, Aggregate intrinsic value	$ 8,208
Stock options outstanding, Aggregate intrinsic value	$ 8,208

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Outstanding Stock Options (Detail)	12 Months Ended
	Dec. 31, 2015$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options, Number of shares | shares	37,249
Outstanding options, Weighted average remaining contractual life (years)	1 year 8 months 20 days
Outstanding options, Weighted-average exercise price (in dollars per share)	$ 82.06
Exercisable options, Number of shares | shares	37,249
Exercisable options, Weighted-average exercise price (in dollars per share)	$ 82.06
$28.56 to $54.22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	28.56
Exercise price upper range (in dollars per share)	$ 54.22
Outstanding options, Number of shares | shares	1,631
Outstanding options, Weighted average remaining contractual life (years)	2 years 10 months 17 days
Outstanding options, Weighted-average exercise price (in dollars per share)	$ 35.83
Exercisable options, Number of shares | shares	1,631
Exercisable options, Weighted-average exercise price (in dollars per share)	$ 35.83
$80.84 to $81.23 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	80.84
Exercise price upper range (in dollars per share)	$ 81.23
Outstanding options, Number of shares | shares	21,183
Outstanding options, Weighted average remaining contractual life (years)	1 year 2 months 16 days
Outstanding options, Weighted-average exercise price (in dollars per share)	$ 81.13
Exercisable options, Number of shares | shares	21,183
Exercisable options, Weighted-average exercise price (in dollars per share)	$ 81.13
$88.56 to $89.23 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price lower range (in dollars per share)	88.56
Exercise price upper range (in dollars per share)	$ 89.23
Outstanding options, Number of shares | shares	14,435
Outstanding options, Weighted average remaining contractual life (years)	2 years 4 months 6 days
Outstanding options, Weighted-average exercise price (in dollars per share)	$ 88.63
Exercisable options, Number of shares | shares	14,435
Exercisable options, Weighted-average exercise price (in dollars per share)	$ 88.63

Stock-Based Compensation - S104

Stock-Based Compensation - Schedule of Additional Disclosure for Stock Options (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total fair value of stock options exercised	$ 0	$ 45	$ 485
Total aggregate intrinsic value of stock options exercised	$ 7,198	$ 9,227	$ 19,385

Stock-Based Compensation - S105

Stock-Based Compensation - Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock units outstanding, beginning balance (in shares)	1,403,974	1,509,382	1,583,840
Restricted stock units granted (in shares)	711,990	803,692	775,029
Restricted stock units released, vested (in shares)	(623,554)	(703,393)	(738,767)
Restricted stock units, Additional shares granted due to special distribution (in shares)	51,432	48,171
Special distribution shares released (in shares)	(19,966)
Restricted stock units canceled (in shares)	(103,922)	(253,878)	(110,720)
Special distribution shares canceled (in shares)	(3,516)
Restricted stock units outstanding, ending balance (in shares)	1,416,438	1,403,974	1,509,382
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Restricted stock units outstanding, Weighted-average grant date fair value, beginning balance (in dollars per share)	$ 114.56	$ 122.05	$ 115.22
Restricted stock units granted, Weighted-average grant date fair value (in dollars per share)	236.89	190.90	204.20
Restricted stock units, Additional stock units granted due to special distribution, Weighted-average grant date fair value (in dollars per share)	297.03	224.45
Restricted stock units released, vested, Weighted-average grant date fair value (in dollars per share)	173.79	201.85	199.14
Special distribution shares released, Weighted-average grant date fair value (in dollars per share)	227.99
Restricted stock units canceled, Weighted-average grant date fair value (in dollars per share)	198.67	179.71	138.27
Special distribution shares canceled, Weighted-average grant date fair value (in dollars per share)	235.43
Restricted stock units outstanding, Weighted-average grant date fair value, ending balance (in dollars per share)	$ 148.53	$ 114.56	$ 122.05
Restricted stock units outstanding, Weighted-average remaining contractual life (years)	1 year 2 months 16 days
Restricted stock units outstanding, Aggregate intrinsic value	$ 428,331,000

Stock-Based Compensation - Disc

Stock-Based Compensation - Disclosures for 2004 Purchase Plan (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average purchase price per share	$ 150.13	$ 144.95	$ 108.97
Weighted average grant-date fair value per share of shares purchased	$ 57.63	$ 53.37	$ 41.30
Number of shares purchased	182,175	166,384	214,985

Stock-Based Compensation - Assu

Stock-Based Compensation - Assumptions in Computation of Fair Value (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (percent)	0.00%
Employee stock purchase plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (percent)		0.00%	0.00%
Expected volatility (percent)	31.00%	34.00%	41.00%
Risk-free interest rate (percent)	0.26%	0.19%	0.37%
Expected life (in years)	1 year 3 months	1 year 3 months	1 year 3 months
Employee stock purchase plans [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (percent)	2.65%
Employee stock purchase plans [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield (percent)	2.81%

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation Expense Recognized in Company's Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 133,633	$ 117,990	$ 102,940
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	1,679	4,917	3,456
Restricted shares and restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	124,512	104,235	88,411
Employee stock purchase plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	7,442	8,838	11,073
Cost of revenues [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	9,878	8,511	7,855
Sales and marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	36,847	30,084	26,538
General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 86,908	$ 79,395	$ 68,547

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)entityshares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)	Dec. 31, 2012USD ($)	Sep. 30, 2007shares
Income Tax Contingency [Line Items]
Tax benefit from employee stock plans	$ 30	$ 18,561	$ 25,638
Income tax rate at full distribution of taxable income (percent)	0.00%
Percetage of taxable income distributed	100.00%
Federal income tax rate (percent)	35.00%	35.00%	35.00%
Tax basis of REIT assets in excess of balance sheet	$ 984,400
Valuation allowances against deferred tax assets	4,513	$ 721	$ (10,156)
Valuation allowances against net deferred tax assets	$ 29,894	$ 27,181	31,058	$ 44,868
Net operating loss carryforwards, annual limitation	The analysis indicated that an ownership change occurred during fiscal year 2002, which resulted in an annual limitation of approximately $819,000 for net operating loss carryforwards generated prior to 2003. Therefore, the Company substantially reduced its federal and state net operating loss carryforwards for the periods prior to 2003 to approximately $16,400,000.
Operating loss carryforwards	$ 480,142
Common stock issued | shares	62,134,894	56,505,122
Net operating loss carryforwards attributable to excess tax deductions related to employee stock awards	$ 4,443
Unrecognized tax benefits decreased, interest and penalties accrued	1,701	$ 3,126	$ 1,612
Unrecognized tax benefits, interest and penalties accrued	3,736	$ 5,437
Unrecognized tax benefits that would impact effective tax rate	30,845
Internal Revenue Code [Member]
Income Tax Contingency [Line Items]
Common stock issued | shares					4,211,939
Tax Periods Prior to 2003 [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards, annual limitation on use	819
Tax Periods Prior to 2003 [Member] | Domestic and State Tax Authority [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	$ 16,400
Brazil [Member]
Income Tax Contingency [Line Items]
Number of entities reporting significant losses | entity	2

Income Taxes - Income from Cont

Income Taxes - Income from Continuing Operations before Income Taxes Attributable to Geographic Locations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Domestic	$ 123,153	$ (46,876)	$ (28,362)
Foreign	87,845	131,609	140,641
Income from operations before income taxes	$ 210,998	$ 84,733	$ 112,279

Income Taxes - Components of Ta

Income Taxes - Components of Tax Benefit (Expenses) for Income Taxes from Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ (85,352)	$ (98,445)	$ (100,035)
State and local	(3,984)	(16,243)	(15,260)
Foreign	(27,090)	(31,844)	(29,377)
Subtotal	(116,426)	(146,532)	(144,672)
Deferred:
Federal	87,801	(177,877)	111,721
State and local	4,600	(21,539)	17,044
Foreign	801	489	(249)
Subtotal	93,202	(198,927)	128,516
Provision for income taxes	$ (23,224)	$ (345,459)	$ (16,156)

Income Taxes - Income Tax Recon

Income Taxes - Income Tax Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal tax at statutory rate	$ (73,849)	$ (29,657)	$ (39,298)
State and local taxes	945	1,370	7,435
Deferred tax assets generated in current year not benefited	(4,916)	(3,311)	(4,777)
Foreign income tax rate differential	30,387	20,002	21,392
Non-deductible expenses	(14,252)	(1,274)	(2,525)
Stock-based compensation expense	(3,922)	(4,496)	(3,273)
Change in valuation allowance	710	1,655	1,362
Foreign financing benefits	2,592	2,981	4,303
Uncertain tax positions reserve	(3,191)	(463)	2,952
Statutory rate change due to REIT conversion	45,823	(324,142)	0
Other, net	(3,551)	(8,124)	(3,727)
Provision for income taxes	$ (23,224)	$ (345,459)	$ (16,156)

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:
Reserves and accruals	$ 13,013	$ 11,952
Stock-based compensation expense	1,459	1,185
Unrealized currency gains/losses	10,656	0
Others, net	18	0
Operating loss carryforwards	34,457	27,687
Gross deferred tax assets	59,603	40,824
Valuation allowance	(29,894)	(27,181)	$ (31,058)	$ (44,868)
Total deferred tax assets, net	29,709	13,643
Deferred tax liabilities:
Property, plant and equipment	(3,365)	(78,261)
Unrealized currency gains/losses	0	(502)
Fixed assets fair value step-up	(5,683)	(7,210)
Intangible assets	(60,133)	(28,433)
Total deferred tax liabilities	(69,181)	(114,406)
Net deferred tax liabilities	$ (39,472)	$ (100,763)

Income Taxes - Changes in Valua

Income Taxes - Changes in Valuation Allowance for Deferred Tax Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 27,181	$ 31,058	$ 44,868
Recognized into income	(710)	(1,655)	(1,362)
Current Increase (Decrease)	4,513	721	(10,156)
NOL and tax credit expiration	0	238	11
Translation adjustment	(1,090)	(3,181)	(2,303)
Ending balance	$ 29,894	$ 27,181	$ 31,058

Income Taxes - Schedule of Net

Income Taxes - Schedule of Net Operating Loss Carryforwards (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 480,142
Net operating loss carryforwards that will not be available to offset	258,339
2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	14,257
2017 to 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	32,654
2020 to 2022 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	225,188
2023 to 2025 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	40,454
2026 to 2028 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	12,186
2029 to 2031 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,330
Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	152,073
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	252,414
Net operating loss carryforwards that will not be available to offset	241,766
Federal [Member] | 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Federal [Member] | 2017 to 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Federal [Member] | 2020 to 2022 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	213,390
Federal [Member] | 2023 to 2025 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	26,838
Federal [Member] | 2026 to 2028 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	12,186
Federal [Member] | 2029 to 2031 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Federal [Member] | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
State [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	20,318
Net operating loss carryforwards that will not be available to offset	16,573
State [Member] | 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	12,793
State [Member] | 2017 to 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	190
State [Member] | 2020 to 2022 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
State [Member] | 2023 to 2025 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	4,005
State [Member] | 2026 to 2028 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
State [Member] | 2029 to 2031 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,330
State [Member] | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Foreign [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	207,410
Foreign [Member] | 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	1,464
Foreign [Member] | 2017 to 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	32,464
Foreign [Member] | 2020 to 2022 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	11,798
Foreign [Member] | 2023 to 2025 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	9,611
Foreign [Member] | 2026 to 2028 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Foreign [Member] | 2029 to 2031 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
Foreign [Member] | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 152,073

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 36,138	$ 36,552	$ 25,050
Gross increases related to prior year tax positions	0	1,200	14,596
Gross decreases related to prior year tax positions	(8,645)	(984)	(3,028)
Gross increases related to current year tax positions	4,802	1,538	1,498
Decreases resulting from expiration of statute of limitation	(1,450)	(1,112)	(1,564)
Decreases resulting from settlements	0	(1,056)	0
Ending balance	$ 30,845	$ 36,138	$ 36,552

Commitments and Contingencies (

Commitments and Contingencies (Detail)	Dec. 31, 2015USD ($)Claims
Other Commitments [Line Items]
Number of pending claims | Claims	0
Indemnification of officers and directors [Member]
Other Commitments [Line Items]
Liabilities under guarantor agreements	$ 0
General indemnification [Member]
Other Commitments [Line Items]
Liabilities under guarantor agreements	0
Indemnification of business partners [Member]
Other Commitments [Line Items]
Liabilities under guarantor agreements	0
Service level credits [Member]
Other Commitments [Line Items]
Liabilities under guarantor agreements	0
Capital expenditures [Member]
Other Commitments [Line Items]
Purchase commitments	256,757,000
Miscellaneous purchase commitments [Member]
Other Commitments [Line Items]
Purchase commitments	$ 352,202,000

Related Party Transactions - Ac

Related Party Transactions - Activity of Related Party Transactions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transactions [Abstract]
Revenues	$ 10,745	$ 8,392	$ 20,140
Costs and services	10,808	8,351	$ 4,819
Accounts receivable	797	1,022
Accounts payable	$ 254	$ 0

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015Segment
Segment Reporting [Abstract]
Number of reportable segments	3

Segment Information - Schedule

Segment Information - Schedule of Adjusted EBITDA (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 1,271,627	$ 1,113,891	$ 1,000,898
Depreciation, amortization and accretion expense	(528,929)	(484,129)	(431,008)
Stock-based compensation expense	(133,633)	(117,990)	(102,940)
Restructuring charges	0	0	4,837
Acquisitions costs	(41,723)	(2,506)	(10,855)
Income from operations	567,342	509,266	460,932
Americas [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	698,604	635,007	608,718
EMEA [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	318,561	269,222	216,186
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 254,462	$ 209,662	$ 175,994

Segment Information - Segment D

Segment Information - Segment Disclosures (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Total revenues	$ 2,725,867,000	$ 2,443,776,000	$ 2,152,766,000
Total depreciation and amortization	525,580,000	481,691,000	432,731,000
Capital expenditures	868,120,000	660,203,000	572,406,000
U.S. [Member]
Segment Reporting Information [Line Items]
Total revenues	1,404,648	1,257,661	1,157,790
Americas [Member]
Segment Reporting Information [Line Items]
Total revenues	1,512,535,000	1,376,103,000	1,264,774,000
Total depreciation and amortization	278,216,000	261,018,000	254,365,000
Capital expenditures	401,685,000	333,315,000	261,936,000
EMEA [Member]
Segment Reporting Information [Line Items]
Total revenues	698,807,000	637,265,000	525,018,000
Total depreciation and amortization	117,655,000	114,511,000	90,891,000
Capital expenditures	202,322,000	151,634,000	170,365,000
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Total revenues	514,525,000	430,408,000	362,974,000
Total depreciation and amortization	129,709,000	106,162,000	87,475,000
Capital expenditures	$ 264,113,000	$ 175,254,000	$ 140,105,000

Segment Information - Long-Live

Segment Information - Long-Lived Assets (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment	$ 5,606,436,000	$ 4,998,270,000
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment	3,025,450,000	2,874,562,000
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment	1,157,304,000	1,135,319,000
Asia-Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment	1,423,682,000	988,389,000
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment	$ 2,781,924	$ 2,609,268

Segment Information - Revenue I

Segment Information - Revenue Information by Category (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue from External Customer [Line Items]
Revenue	$ 2,725,867	$ 2,443,776	$ 2,152,766
Recurring Revenues [Member]
Revenue from External Customer [Line Items]
Revenue	2,569,141	2,317,790	2,049,962
Recurring Revenues [Member] | Colocation [Member]
Revenue from External Customer [Line Items]
Revenue	2,024,963	1,829,812	1,628,179
Recurring Revenues [Member] | Interconnection [Member]
Revenue from External Customer [Line Items]
Revenue	435,809	372,350	319,863
Recurring Revenues [Member] | Managed infrastructure services [Member]
Revenue from External Customer [Line Items]
Revenue	97,688	105,292	97,400
Recurring Revenues [Member] | Rental [Member]
Revenue from External Customer [Line Items]
Revenue	10,681	10,336	4,520
Non-recurring Revenues [Member]
Revenue from External Customer [Line Items]
Revenue	$ 156,726	$ 125,986	$ 102,804

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2004	Dec. 31, 2015	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 17,685,000	$ 0	$ 0

Restructuring Charges - Summary

Restructuring Charges - Summary of Accrued Restructuring Charges (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Accrued restructuring charge, beginning balance		$ 0	$ 5,679
Accretion expense			137
Restructuring reversals	$ 0	$ 0	(4,837)
Cash payments			(979)
Accrued restructuring charge, ending balance			$ 0

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) £ / shares in Units, $ / shares in Units, ¥ in Millions

Feb. 18, 2016$ / shares

Jan. 15, 2016USD ($)shares

Jan. 15, 2016USD ($)£ / shares

Oct. 28, 2015$ / shares

Jul. 29, 2015$ / shares

May. 07, 2015$ / shares

Feb. 19, 2015$ / shares

Feb. 25, 2016USD ($)

Jan. 31, 2016GBP (£)

Jan. 31, 2016USD ($)

Dec. 31, 2015JPY (¥)

Dec. 31, 2015USD ($)

Oct. 31, 2015JPY (¥)

Oct. 31, 2015USD ($)

Subsequent Event [Line Items]

Dividends declared per share (in dollars per share) | $ / shares

$ 1.69

$ 1.69

$ 1.69

$ 1.69

Bridge term loan [Member]

Subsequent Event [Line Items]

Proceeds from issuance of debt

¥ 19,200

$ 159,744,000

¥ 27,260

$ 226,803,000

Subsequent Event [Member]

Subsequent Event [Line Items]

Dividends declared per share (in dollars per share) | $ / shares

$ 1.75

Sale price of parcel sold

$ 23,557,000

Subsequent Event [Member] | Telecity Group plc [Member]

Subsequent Event [Line Items]

Acquisition price (in pence per share) | £ / shares

£ 5.725

Acquisition price, company shares issued per share acquired

0.0336

Purchase price

$ 1,683,000,000

Purchase price (in shares) | shares

6,853,500

Value of shares issued

$ 2,078,000,000

£ 2,078,000,000

Subsequent Event [Member] | Bridge term loan [Member] | Telecity Group plc [Member]

Subsequent Event [Line Items]

Debt terminated

£ 875,000,000

$ 1,289,000,000

Subsequent Event [Member] | Line of Credit [Member] | USD Term B Loan Facility [Member]

Subsequent Event [Line Items]

Proceeds from issuance of debt

250,000,000

Subsequent Event [Member] | Line of Credit [Member] | Sterling Term B Loan Commitment [Member]

Subsequent Event [Line Items]

Proceeds from issuance of debt

£ 300,000,000

$ 442,020,000

Quarterly Financial Informat127

Quarterly Financial Information (Detail) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 730,462,000	$ 686,649,000	$ 665,582,000	$ 643,174,000	$ 638,121,000	$ 620,441,000	$ 605,161,000	$ 580,053,000
Gross profit	378,494,000	361,181,000	349,825,000	344,861,000	324,672,000	316,389,000	312,302,000	292,528,000
Net income (loss) attributable to Equinix	10,731,000	41,132,000	59,459,000	76,452,000	(355,103,000)	42,841,000	11,328,000	41,387,000	$ 187,774,000	$ (259,547,000)	$ 94,685,000
Comprehensive income (loss) attributable to Equinix	$ (10,317,000)	$ (23,707,000)	$ 104,323,000	$ (59,141,000)	$ (450,067,000)	$ (97,814,000)	$ 33,640,000	$ 55,329,000	$ 11,158,000	$ (458,912,000)	$ 81,960,000
Earnings per share (EPS) attributable to Equinix:
Basic EPS (in dollars per share)	$ 0.18	$ 0.72	$ 1.04	$ 1.35	$ (6.42)	$ 0.81	$ 0.22	$ 0.83	$ 3.25	$ (4.96)	$ 1.92
Diluted EPS (in dollars per share)	$ 0.18	$ 0.71	$ 1.03	$ 1.34	$ (6.42)	$ 0.79	$ 0.22	$ 0.81	$ 3.21	$ (4.96)	$ 1.89

Schedule III Real Estate and128

Schedule III Real Estate and Accumulated Depreciation - Real Estate and Accumulated Depreciation, by Property (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Initial Costs to Company
Encumbrances	$ 32,255,000
Land	123,770,000
Buildings and Improvements	965,641,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	60,176,000
Buildings and Improvements	6,722,303,000
Total Costs
Land	183,946,000
Buildings and Improvements	7,687,944,000
Accumulated Depreciation	(2,595,648,000)	$ (2,242,345,000)	$ (1,904,311,000)	$ (1,538,329,000)
Taxable basis in aggregate initial cost	7,512,627,000
Operating Lease [Member]
Total Costs
Initial cost	0
Americas [Member] | AT1 Atlanta [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	95,053,000
Total Costs
Land	0
Buildings and Improvements	95,053,000
Accumulated Depreciation	(26,396,000)
Americas [Member] | AT2 Atlanta [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	41,648,000
Total Costs
Land	0
Buildings and Improvements	41,648,000
Accumulated Depreciation	(13,454,000)
Americas [Member] | AT3 Atlanta [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	3,538,000
Total Costs
Land	0
Buildings and Improvements	3,538,000
Accumulated Depreciation	(875,000)
Americas [Member] | BO1 BOSTON (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	11,261,000
Total Costs
Land	0
Buildings and Improvements	11,261,000
Accumulated Depreciation	(5,264,000)
Americas [Member] | CH1 CHICAGO (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	153,239,000
Total Costs
Land	0
Buildings and Improvements	153,239,000
Accumulated Depreciation	(94,134,000)
Americas [Member] | CH2 CHICAGO (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	96,664,000
Total Costs
Land	0
Buildings and Improvements	96,664,000
Accumulated Depreciation	(43,580,000)
Americas [Member] | CH3 CHICAGO (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	9,759,000
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	352,000
Buildings and Improvements	222,935,000
Total Costs
Land	10,111,000
Buildings and Improvements	222,935,000
Accumulated Depreciation	(78,240,000)
Americas [Member] | CH4 CHICAGO (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,025,000
Total Costs
Land	0
Buildings and Improvements	21,025,000
Accumulated Depreciation	(6,520,000)
Americas [Member] | DA1 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	72,470,000
Total Costs
Land	0
Buildings and Improvements	72,470,000
Accumulated Depreciation	(44,727,000)
Americas [Member] | DA2 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	77,185,000
Total Costs
Land	0
Buildings and Improvements	77,185,000
Accumulated Depreciation	(13,327,000)
Americas [Member] | DA3 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	84,048,000
Total Costs
Land	0
Buildings and Improvements	84,048,000
Accumulated Depreciation	(21,349,000)
Americas [Member] | DA4 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	16,674,000
Total Costs
Land	0
Buildings and Improvements	16,674,000
Accumulated Depreciation	(6,672,000)
Americas [Member] | DA6 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	20,522,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	78,386,000
Total Costs
Land	0
Buildings and Improvements	98,908,000
Accumulated Depreciation	(6,942,000)
Americas [Member] | DA7 Dallas [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	24,525,000
Total Costs
Land	0
Buildings and Improvements	24,525,000
Accumulated Depreciation	(177,000)
Americas [Member] | DC1 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	1,520,000
Total Costs
Land	0
Buildings and Improvements	1,520,000
Accumulated Depreciation	(197,000)
Americas [Member] | DC2 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	5,047,000
Buildings and Improvements	150,144,000
Total Costs
Land	5,047,000
Buildings and Improvements	150,144,000
Accumulated Depreciation	(123,646,000)
Americas [Member] | DC3 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	37,451,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	51,589,000
Total Costs
Land	0
Buildings and Improvements	89,040,000
Accumulated Depreciation	(42,295,000)
Americas [Member] | DC4 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	1,906,000
Buildings and Improvements	7,272,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	70,087,000
Total Costs
Land	1,906,000
Buildings and Improvements	77,359,000
Accumulated Depreciation	(42,918,000)
Americas [Member] | DC5 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	1,429,000
Buildings and Improvements	4,983,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	86,875,000
Total Costs
Land	1,429,000
Buildings and Improvements	91,858,000
Accumulated Depreciation	(47,548,000)
Americas [Member] | DC6 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	1,429,000
Buildings and Improvements	5,082,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	85,311,000
Total Costs
Land	1,429,000
Buildings and Improvements	90,393,000
Accumulated Depreciation	(30,425,000)
Americas [Member] | DC7 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	15,348,000
Total Costs
Land	0
Buildings and Improvements	15,348,000
Accumulated Depreciation	(9,135,000)
Americas [Member] | DC8 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	4,684,000
Total Costs
Land	0
Buildings and Improvements	4,684,000
Accumulated Depreciation	(4,532,000)
Americas [Member] | DC10 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	44,601,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	67,402,000
Total Costs
Land	0
Buildings and Improvements	112,003,000
Accumulated Depreciation	(20,225,000)
Americas [Member] | DC11 WASHINGTON, DC (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	1,429,000
Buildings and Improvements	5,082,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	114,865,000
Total Costs
Land	1,429,000
Buildings and Improvements	119,947,000
Accumulated Depreciation	(13,880,000)
Americas [Member] | DE1 DENVER (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	8,322,000
Total Costs
Land	0
Buildings and Improvements	8,322,000
Accumulated Depreciation	(4,966,000)
Americas [Member] | LA1 LOS ANGELES [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	107,511,000
Total Costs
Land	0
Buildings and Improvements	107,511,000
Accumulated Depreciation	(55,793,000)
Americas [Member] | LA2 LOS ANGELES [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	11,367,000
Total Costs
Land	0
Buildings and Improvements	11,367,000
Accumulated Depreciation	(9,566,000)
Americas [Member] | LA3 EL SEGUNDO [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	34,727,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	3,959,000
Buildings and Improvements	18,950,000
Total Costs
Land	3,959,000
Buildings and Improvements	53,677,000
Accumulated Depreciation	(39,778,000)
Americas [Member] | LA4 EL SEGUNDO [Member]
Initial Costs to Company
Encumbrances	0
Land	19,333,000
Buildings and Improvements	137,630,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	27,997,000
Total Costs
Land	19,333,000
Buildings and Improvements	165,627,000
Accumulated Depreciation	(51,666,000)
Americas [Member] | MI2 MIAMI (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,510,000
Total Costs
Land	0
Buildings and Improvements	21,510,000
Accumulated Depreciation	(9,439,000)
Americas [Member] | MI3 MIAMI (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	28,869,000
Total Costs
Land	0
Buildings and Improvements	28,869,000
Accumulated Depreciation	(5,750,000)
Americas [Member] | NY1 NEWARK [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	79,447,000
Total Costs
Land	0
Buildings and Improvements	79,447,000
Accumulated Depreciation	(39,430,000)
Americas [Member] | NY2 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	17,859,000
Buildings and Improvements	187,115,000
Total Costs
Land	17,859,000
Buildings and Improvements	187,115,000
Accumulated Depreciation	(115,457,000)
Americas [Member] | NY4 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	322,863,000
Total Costs
Land	0
Buildings and Improvements	322,863,000
Accumulated Depreciation	(140,124,000)
Americas [Member] | NY5 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	182,025,000
Total Costs
Land	0
Buildings and Improvements	182,025,000
Accumulated Depreciation	(30,405,000)
Americas [Member] | NY6 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	72,901,000
Total Costs
Land	0
Buildings and Improvements	72,901,000
Accumulated Depreciation	(2,517,000)
Americas [Member] | NY7 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	24,660,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	137,080,000
Total Costs
Land	0
Buildings and Improvements	161,740,000
Accumulated Depreciation	(75,835,000)
Americas [Member] | NY8 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	11,515,000
Total Costs
Land	0
Buildings and Improvements	11,515,000
Accumulated Depreciation	(4,979,000)
Americas [Member] | NY9 NEW YORK CITY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	51,727,000
Total Costs
Land	0
Buildings and Improvements	51,727,000
Accumulated Depreciation	(22,897,000)
Americas [Member] | PH1 PHILADELPHIA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	47,463,000
Total Costs
Land	0
Buildings and Improvements	47,463,000
Accumulated Depreciation	(7,790,000)
Americas [Member] | SE2 SEATTLE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	27,359,000
Total Costs
Land	0
Buildings and Improvements	27,359,000
Accumulated Depreciation	(16,368,000)
Americas [Member] | SE3 SEATTLE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	1,760,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	93,457,000
Total Costs
Land	0
Buildings and Improvements	95,217,000
Accumulated Depreciation	(16,852,000)
Americas [Member] | SV1 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	15,545,000
Buildings and Improvements	156,304,000
Total Costs
Land	15,545,000
Buildings and Improvements	156,304,000
Accumulated Depreciation	(100,156,000)
Americas [Member] | SV2 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	145,920,000
Total Costs
Land	0
Buildings and Improvements	145,920,000
Accumulated Depreciation	(60,670,000)
Americas [Member] | SV3 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	42,971,000
Total Costs
Land	0
Buildings and Improvements	42,971,000
Accumulated Depreciation	(36,280,000)
Americas [Member] | SV4 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	24,231,000
Total Costs
Land	0
Buildings and Improvements	24,231,000
Accumulated Depreciation	(17,247,000)
Americas [Member] | SV5 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	6,238,000
Buildings and Improvements	98,991,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	86,932,000
Total Costs
Land	6,238,000
Buildings and Improvements	185,923,000
Accumulated Depreciation	(32,645,000)
Americas [Member] | SV6 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	15,585,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,380,000
Total Costs
Land	0
Buildings and Improvements	36,965,000
Accumulated Depreciation	(18,663,000)
Americas [Member] | SV8 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	44,240,000
Total Costs
Land	0
Buildings and Improvements	44,240,000
Accumulated Depreciation	(17,178,000)
Americas [Member] | SV12 SILICON VALLEY (METRO) [Member]
Initial Costs to Company
Encumbrances	0
Land	20,535,000
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	1,892,000
Total Costs
Land	20,535,000
Buildings and Improvements	1,892,000
Accumulated Depreciation	0
Americas [Member] | TR1 TORONTO, CANADA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	86,705,000
Total Costs
Land	0
Buildings and Improvements	86,705,000
Accumulated Depreciation	(15,450,000)
Americas [Member] | TR2 TORONTO, CANADA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	20,499,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	70,383,000
Total Costs
Land	0
Buildings and Improvements	90,882,000
Accumulated Depreciation	(3,007,000)
Americas [Member] | RJ1 RIO DE JANEIRO, BRAZIL [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	20,845,000
Total Costs
Land	0
Buildings and Improvements	20,845,000
Accumulated Depreciation	(12,042,000)
Americas [Member] | RJ2 RIO DE JANEIRO, BRAZIL [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	1,654,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	27,347,000
Total Costs
Land	0
Buildings and Improvements	29,001,000
Accumulated Depreciation	(4,268,000)
Americas [Member] | SP1 SÃO PAULO, BRAZIL [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	8,373,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	17,846,000
Total Costs
Land	0
Buildings and Improvements	26,219,000
Accumulated Depreciation	(12,865,000)
Americas [Member] | SP2 SÃO PAULO, BRAZIL [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	53,783,000
Total Costs
Land	0
Buildings and Improvements	53,783,000
Accumulated Depreciation	(17,990,000)
Americas [Member] | DC12 AND other future IBX [Member]
Initial Costs to Company
Encumbrances	0
Land	24,870,000
Buildings and Improvements	4,608,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	13,666,000
Total Costs
Land	24,870,000
Buildings and Improvements	18,274,000
Accumulated Depreciation	(1,897,000)
EMEA [Member] | OTHERS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	2,112,000
Total Costs
Land	0
Buildings and Improvements	2,112,000
Accumulated Depreciation	(1,776,000)
EMEA [Member] | AM1 AMSTERDAM, THE NETHERLANDS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	45,887,000
Total Costs
Land	0
Buildings and Improvements	45,887,000
Accumulated Depreciation	(20,343,000)
EMEA [Member] | AM2 AMSTERDAM, THE NETHERLANDS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	54,298,000
Total Costs
Land	0
Buildings and Improvements	54,298,000
Accumulated Depreciation	(15,143,000)
EMEA [Member] | AM3 AMSTERDAM, THE NETHERLANDS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	27,977,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	90,043,000
Total Costs
Land	0
Buildings and Improvements	118,020,000
Accumulated Depreciation	(15,734,000)
EMEA [Member] | DU1 DÜSSELDORF, GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,062,000
Total Costs
Land	0
Buildings and Improvements	21,062,000
Accumulated Depreciation	(17,219,000)
EMEA [Member] | DU2 DÜSSELDORF, GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	204,000
Total Costs
Land	0
Buildings and Improvements	204,000
Accumulated Depreciation	(157,000)
EMEA [Member] | DX1 DUBAI, UNITED ARAB EMIRATES [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	22,478,000
Total Costs
Land	0
Buildings and Improvements	22,478,000
Accumulated Depreciation	(3,897,000)
EMEA [Member] | EN1 ENSCHEDE, THE NETHERLANDS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	20,135,000
Total Costs
Land	0
Buildings and Improvements	20,135,000
Accumulated Depreciation	(12,188,000)
EMEA [Member] | FR1 FRANKFURT (METRO), GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	6,751,000
Total Costs
Land	0
Buildings and Improvements	6,751,000
Accumulated Depreciation	(6,401,000)
EMEA [Member] | FR2 FRANKFURT (METRO), GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	11,547,000
Buildings and Improvements	183,112,000
Total Costs
Land	11,547,000
Buildings and Improvements	183,112,000
Accumulated Depreciation	(61,215,000)
EMEA [Member] | FR3 FRANKFURT (METRO), GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	2,031,000
Buildings and Improvements	4,666,000
Total Costs
Land	2,031,000
Buildings and Improvements	4,666,000
Accumulated Depreciation	(1,000,000)
EMEA [Member] | FR4 FRANKFURT (METRO), GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	11,953,000
Buildings and Improvements	9,609,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	19,431,000
Total Costs
Land	11,953,000
Buildings and Improvements	29,040,000
Accumulated Depreciation	(11,340,000)
EMEA [Member] | FR5 FRANKFURT (METRO), GERMANY [Member]
Initial Costs to Company
Encumbrances	32,255,000
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	3,836,000
Buildings and Improvements	106,889,000
Total Costs
Land	3,836,000
Buildings and Improvements	106,889,000
Accumulated Depreciation	(16,122,000)
EMEA [Member] | GV1 GENEVA (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	5,497,000
Total Costs
Land	0
Buildings and Improvements	5,497,000
Accumulated Depreciation	(4,206,000)
EMEA [Member] | GV2 GENEVA (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	20,757,000
Total Costs
Land	0
Buildings and Improvements	20,757,000
Accumulated Depreciation	(11,210,000)
EMEA [Member] | LD1 LONDON (METRO), UNITED KINGDOM [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	2,736,000
Total Costs
Land	0
Buildings and Improvements	2,736,000
Accumulated Depreciation	(2,389,000)
EMEA [Member] | LD3 LONDON (METRO), UNITED KINGDOM [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	17,350,000
Total Costs
Land	0
Buildings and Improvements	17,350,000
Accumulated Depreciation	(10,448,000)
EMEA [Member] | LD4 LONDON (METRO), UNITED KINGDOM [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	27,575,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	64,854,000
Total Costs
Land	0
Buildings and Improvements	92,429,000
Accumulated Depreciation	(32,697,000)
EMEA [Member] | LD5 LONDON (METRO), UNITED KINGDOM [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	19,639,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	185,242,000
Total Costs
Land	0
Buildings and Improvements	204,881,000
Accumulated Depreciation	(48,798,000)
EMEA [Member] | LD6 LONDON (METRO), UNITED KINGDOM [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	91,946,000
Total Costs
Land	0
Buildings and Improvements	91,946,000
Accumulated Depreciation	(2,729,000)
EMEA [Member] | ML1 MILAN (METRO), ITALY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	832,000
Total Costs
Land	0
Buildings and Improvements	832,000
Accumulated Depreciation	(549,000)
EMEA [Member] | MU1 MUNICH, GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	11,334,000
Total Costs
Land	0
Buildings and Improvements	11,334,000
Accumulated Depreciation	(7,679,000)
EMEA [Member] | MU2 MUNICH, GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	69,000
Total Costs
Land	0
Buildings and Improvements	69,000
Accumulated Depreciation	(44,000)
EMEA [Member] | MU3 MUNICH, GERMANY [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	4,493,000
Total Costs
Land	0
Buildings and Improvements	4,493,000
Accumulated Depreciation	(3,811,000)
EMEA [Member] | PA1 PARIS (METRO), FRANCE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,338,000
Total Costs
Land	0
Buildings and Improvements	21,338,000
Accumulated Depreciation	(16,664,000)
EMEA [Member] | PA2 PARIS (METRO), FRANCE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	39,162,000
Total Costs
Land	0
Buildings and Improvements	39,162,000
Accumulated Depreciation	(22,006,000)
EMEA [Member] | PA3 PARIS (METRO), FRANCE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	30,574,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	85,720,000
Total Costs
Land	0
Buildings and Improvements	116,294,000
Accumulated Depreciation	(42,232,000)
EMEA [Member] | PA4 PARIS (METRO), FRANCE [Member]
Initial Costs to Company
Encumbrances	0
Land	1,756,000
Buildings and Improvements	9,811,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	123,424,000
Total Costs
Land	1,756,000
Buildings and Improvements	133,235,000
Accumulated Depreciation	(20,488,000)
EMEA [Member] | ZH1 ZURICH (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	5,573,000
Total Costs
Land	0
Buildings and Improvements	5,573,000
Accumulated Depreciation	(4,330,000)
EMEA [Member] | ZH2 ZURICH (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	4,893,000
Total Costs
Land	0
Buildings and Improvements	4,893,000
Accumulated Depreciation	(2,490,000)
EMEA [Member] | ZH4 ZURICH (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	11,501,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	23,062,000
Total Costs
Land	0
Buildings and Improvements	34,563,000
Accumulated Depreciation	(13,034,000)
EMEA [Member] | ZH5 ZURICH (METRO), SWITZERLAND [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	39,006,000
Total Costs
Land	0
Buildings and Improvements	39,006,000
Accumulated Depreciation	(8,011,000)
EMEA [Member] | ZW1 ZWOLLE, THE NETHERLANDS [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	7,103,000
Total Costs
Land	0
Buildings and Improvements	7,103,000
Accumulated Depreciation	(3,633,000)
Asia-Pacific [Member] | OTHERS [Member]
Initial Costs to Company
Encumbrances	0
Land	7,631,000
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,203,000
Total Costs
Land	7,631,000
Buildings and Improvements	21,203,000
Accumulated Depreciation	(2,515,000)
Asia-Pacific [Member] | HK1 HONG KONG, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	97,905,000
Total Costs
Land	0
Buildings and Improvements	97,905,000
Accumulated Depreciation	(53,083,000)
Asia-Pacific [Member] | HK2 HONG KONG, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	181,827,000
Total Costs
Land	0
Buildings and Improvements	181,827,000
Accumulated Depreciation	(34,847,000)
Asia-Pacific [Member] | HK3 HONG KONG, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	132,765,000
Total Costs
Land	0
Buildings and Improvements	132,765,000
Accumulated Depreciation	(33,892,000)
Asia-Pacific [Member] | HK4 HONG KONG, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	6,698,000
Total Costs
Land	0
Buildings and Improvements	6,698,000
Accumulated Depreciation	(3,149,000)
Asia-Pacific [Member] | ME1 MELBOURNE, AUSTRALIA [Member]
Initial Costs to Company
Encumbrances	0
Land	15,502,000
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	61,216,000
Total Costs
Land	15,502,000
Buildings and Improvements	61,216,000
Accumulated Depreciation	(2,291,000)
Asia-Pacific [Member] | OS1 OSAKA, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	14,459,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	21,861,000
Total Costs
Land	0
Buildings and Improvements	36,320,000
Accumulated Depreciation	(4,711,000)
Asia-Pacific [Member] | OS2 OSAKA, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	100,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	0
Total Costs
Land	0
Buildings and Improvements	100,000
Accumulated Depreciation	(7,000)
Asia-Pacific [Member] | SG1 SINGAPORE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	158,755,000
Total Costs
Land	0
Buildings and Improvements	158,755,000
Accumulated Depreciation	(83,970,000)
Asia-Pacific [Member] | SG2 SINGAPORE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	251,089,000
Total Costs
Land	0
Buildings and Improvements	251,089,000
Accumulated Depreciation	(78,714,000)
Asia-Pacific [Member] | SG3 SINGAPORE [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	35,614,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	90,929,000
Total Costs
Land	0
Buildings and Improvements	126,543,000
Accumulated Depreciation	(3,293,000)
Asia-Pacific [Member] | SH2 SHANGHAI, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	3,315,000
Total Costs
Land	0
Buildings and Improvements	3,315,000
Accumulated Depreciation	(743,000)
Asia-Pacific [Member] | SH3 SHANGHAI, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	7,557,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	5,440,000
Total Costs
Land	0
Buildings and Improvements	12,997,000
Accumulated Depreciation	(3,064,000)
Asia-Pacific [Member] | SH4 SHANGHAI, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	1,718,000
Total Costs
Land	0
Buildings and Improvements	1,718,000
Accumulated Depreciation	(1,164,000)
Asia-Pacific [Member] | SH5 SHANGHAI, CHINA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	12,068,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	19,571,000
Total Costs
Land	0
Buildings and Improvements	31,639,000
Accumulated Depreciation	(4,292,000)
Asia-Pacific [Member] | SY1 SYDNEY, AUSTRALIA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	23,894,000
Total Costs
Land	0
Buildings and Improvements	23,894,000
Accumulated Depreciation	(12,181,000)
Asia-Pacific [Member] | SY2 SYDNEY, AUSTRALIA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	3,113,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	32,205,000
Total Costs
Land	0
Buildings and Improvements	35,318,000
Accumulated Depreciation	(16,660,000)
Asia-Pacific [Member] | SY3 SYDNEY, AUSTRALIA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	8,804,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	130,183,000
Total Costs
Land	0
Buildings and Improvements	138,987,000
Accumulated Depreciation	(34,199,000)
Asia-Pacific [Member] | SY4 SYDNEY, AUSTRALIA [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	39,113,000
Total Costs
Land	0
Buildings and Improvements	39,113,000
Accumulated Depreciation	0
Asia-Pacific [Member] | TY1 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	16,651,000
Total Costs
Land	0
Buildings and Improvements	16,651,000
Accumulated Depreciation	(8,795,000)
Asia-Pacific [Member] | TY2 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	61,024,000
Total Costs
Land	0
Buildings and Improvements	61,024,000
Accumulated Depreciation	(47,119,000)
Asia-Pacific [Member] | TY3 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	65,673,000
Total Costs
Land	0
Buildings and Improvements	65,673,000
Accumulated Depreciation	(18,224,000)
Asia-Pacific [Member] | TY4 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	41,256,000
Total Costs
Land	0
Buildings and Improvements	41,256,000
Accumulated Depreciation	(6,375,000)
Asia-Pacific [Member] | TY5 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	99,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	14,366,000
Total Costs
Land	0
Buildings and Improvements	14,465,000
Accumulated Depreciation	0
Asia-Pacific [Member] | TY6 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	36,877,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	4,652,000
Total Costs
Land	0
Buildings and Improvements	41,529,000
Accumulated Depreciation	(853,000)
Asia-Pacific [Member] | TY7 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	12,806,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	1,321,000
Total Costs
Land	0
Buildings and Improvements	14,127,000
Accumulated Depreciation	(464,000)
Asia-Pacific [Member] | TY8 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	52,338,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	6,593,000
Total Costs
Land	0
Buildings and Improvements	58,931,000
Accumulated Depreciation	(1,672,000)
Asia-Pacific [Member] | TY9 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	103,718,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	893,000
Total Costs
Land	0
Buildings and Improvements	104,611,000
Accumulated Depreciation	(2,169,000)
Asia-Pacific [Member] | TY10 TOKYO, JAPAN [Member]
Initial Costs to Company
Encumbrances	0
Land	0
Buildings and Improvements	67,922,000
Costs Capitalized Subsequent to Acquisition or Lease
Land	0
Buildings and Improvements	329,000
Total Costs
Land	0
Buildings and Improvements	68,251,000
Accumulated Depreciation	$ (791,000)

Schedule III Real Estate and129

Schedule III Real Estate and Accumulated Depreciation - Reconciliation of Carrying Amount of Real Estate Investments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance, beginning of period	$ 7,006,695	$ 6,308,992	$ 5,220,450
Additions (acquisitions and improvements)	1,172,855	997,534	1,146,126
Disposals	(9,295)	(16,444)	(14,864)
Foreign currency transaction adjustments and others	(298,365)	(283,387)	(42,720)
Balance, end of year	$ 7,871,890	$ 7,006,695	$ 6,308,992

Schedule III Real Estate and130

Schedule III Real Estate and Accumulated Depreciation - Reconciliation of Real Estate Accumulated Depreciation - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance, beginning of period	$ (2,242,345)	$ (1,904,311)	$ (1,538,329)
Additions (depreciation expense)	(440,002)	(418,407)	(377,577)
Disposals	7,396	16,038	12,804
Foreign currency transaction adjustments and others	79,303	64,335	(1,209)
Balance, end of year	$ (2,595,648)	$ (2,242,345)	$ (1,904,311)