Equinix (EQIX) 10-Q 8 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014
Document And Entity Information [Abstract]	'
Document Type	'10-Q
Amendment Flag	'false
Document Period End Date	30-Jun-14
Document Fiscal Year Focus	'2014
Document Fiscal Period Focus	'Q2
Trading Symbol	'EQIX
Entity Registrant Name	'EQUINIX INC
Entity Central Index Key	'0001101239
Current Fiscal Year End Date	'--12-31
Entity Filer Category	'Large Accelerated Filer
Entity Common Stock, Shares Outstanding	53,194,103

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$408,334	$261,894
Short-term investments	207,325	369,808
Accounts receivable, net	237,831	184,840
Other current assets	101,044	72,118
Total current assets	954,534	888,660
Long-term investments	88,690	398,390
Property, plant and equipment, net	4,924,162	4,591,650
Goodwill	1,058,363	1,042,153
Intangible assets, net	170,130	184,182
Other assets	443,732	387,324
Total assets	7,639,611	7,492,359
Current liabilities:	'	'
Accounts payable and accrued expenses	260,121	263,223
Accrued property, plant and equipment	83,796	64,601
Current portion of capital lease and other financing obligations	18,377	17,214
Current portion of mortgage and loans payable	54,470	53,508
Other current liabilities	146,551	147,958
Total current liabilities	563,315	546,504
Capital lease and other financing obligations, less current portion	1,116,230	914,032
Mortgage and loans payable, less current portion	176,184	199,700
Convertible debt	320,914	724,202
Senior notes	2,250,000	2,250,000
Other liabilities	302,753	274,955
Total liabilities	4,729,396	4,909,393
Redeemable non-controlling interests (Note 10)	227,156	123,902
Commitments and contingencies (Note 11)	'	'
Stockholders' equity:	'	'
Common stock	53	50
Additional paid-in capital	2,797,186	2,693,887
Treasury stock	-52,938	-84,663
Accumulated other comprehensive loss	-77,514	-113,767
Retained earnings (accumulated deficit)	16,272	-36,443
Total stockholders' equity	2,683,059	2,459,064
Total liabilities, redeemable non-controlling interests and stockholders' equity	$7,639,611	$7,492,359

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Revenues	$605,161	$528,871	$1,185,214	$1,045,005
Costs and operating expenses:	'	'	'	'
Cost of revenues	292,859	267,109	580,384	525,700
Sales and marketing	75,254	59,478	142,682	117,754
General and administrative	111,675	88,632	214,978	179,450
Restructuring charges	'	-4,837	'	-4,837
Acquisition costs	676	2,526	861	6,188
Total costs and operating expenses	480,464	412,908	938,905	824,255
Income from operations	124,697	115,963	246,309	220,750
Interest income	744	917	2,178	1,664
Interest expense	-66,874	-61,001	-135,694	-121,332
Other income	681	2,768	1,359	2,309
Loss on debt extinguishment	-51,183	-93,602	-51,183	-93,602
Income (loss) from operations before income taxes	8,065	-34,955	62,969	9,789
Income tax benefit (expense)	2,014	9,668	-11,553	-1,792
Net income (loss)	10,079	-25,287	51,416	7,997
Net (income) loss attributable to redeemable non-controlling interests	1,249	-529	1,299	-970
Net income (loss) attributable to Equinix	$11,328	($25,816)	$52,715	$7,027
Earnings (loss) per share ("EPS") attributable to Equinix:	'	'	'	'
Basic EPS	$0.22	($0.52)	$1.04	$0.14
Weighted-average shares	51,332	49,379	50,470	49,205
Diluted EPS	$0.22	($0.52)	$1.04	$0.14
Weighted-average shares	51,652	49,379	50,884	49,976

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income (loss)	$10,079	($25,287)	$51,416	$7,997
Other comprehensive income (loss), net of tax:	'	'	'	'
Foreign currency translation gain (loss)	23,081	-30,666	38,051	-103,220
Unrealized gain (loss) on available for sale securities	-74	-458	765	-360
Unrealized gain on cash flow hedges	54	'	254	'
Total other comprehensive income (loss), net of tax	23,061	-31,124	39,070	-103,580
Comprehensive income (loss), net of tax	33,140	-56,411	90,486	-95,583
Net (income) loss attributable to redeemable non-controlling interests	1,249	-529	1,299	-970
Other comprehensive (income) loss attributable to redeemable non-controlling interest	-750	5,309	-2,817	4,540
Comprehensive income (loss) attributable to Equinix	$33,639	($51,631)	$88,968	($92,013)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income	$51,416	$7,997
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation	215,596	202,637
Stock-based compensation	58,811	48,030
Excess tax benefits from stock-based compensation	-11,632	-22,421
Restructuring charges	'	-4,837
Amortization of debt issuance costs and debt discounts	11,126	11,637
Amortization of intangible assets	13,979	13,623
Provision for allowance for doubtful accounts	2,527	1,598
Loss on debt extinguishment	51,183	93,602
Other items	10,329	7,968
Changes in operating assets and liabilities:	'	'
Accounts receivable	-53,505	-43,761
Income taxes, net	-92,513	-75,556
Other assets	10,188	-18,036
Accounts payable and accrued expenses	-14,172	396
Other liabilities	17,349	8,463
Net cash provided by operating activities	270,682	231,340
Cash flows from investing activities:	'	'
Purchases of investments	-115,222	-623,804
Sales of investments	412,013	140,450
Maturities of investments	175,600	74,796
Purchase of real estate	-16,791	-2,960
Purchases of property, plant and equipment	-265,723	-198,530
Change in restricted cash	499	5,162
Other investing activities, net	12	-107
Net cash provided by (used in) investing activities	190,388	-604,993
Cash flows from financing activities:	'	'
Purchases of treasury stock	-255,383	'
Proceeds from employee equity awards	15,821	15,880
Excess tax benefits from stock-based compensation	11,632	22,421
Proceeds from loans payable	128	'
Proceeds from senior notes	'	1,500,000
Repayment of capital lease and other financing obligations	-9,283	-7,673
Repayment of mortgage and loans payable	-27,094	-32,191
Repayment of convertible debt	-29,479	'
Repayment of senior notes	'	-750,000
Debt extinguishment costs	-22,552	-80,925
Debt issuance costs	'	-20,786
Net cash provided by (used in ) financing activities	-316,210	646,726
Effect of foreign currency exchange rates on cash and cash equivalents	1,580	-7,790
Net increase in cash and cash equivalents	146,440	265,283
Cash and cash equivalents at beginning of period	261,894	252,213
Cash and cash equivalents at end of period	408,334	517,496
Supplemental cash flow information	'	'
Cash paid for taxes	105,284	76,854
Cash paid for interest	$121,902	$96,280

Basis_of_Presentation_and_Sign

Basis of Presentation and Significant Accounting Policies	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies	'
	1. Basis of Presentation and Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared by Equinix, Inc. (“Equinix” or the “Company”) and reflect all adjustments, consisting only of normal recurring adjustments, which in the opinion of management are necessary to fairly state the financial position and the results of operations for the interim periods presented. The condensed consolidated balance sheet data as of December 31, 2013 has been derived from audited consolidated financial statements as of that date. The consolidated financial statements have been prepared in accordance with the regulations of the Securities and Exchange Commission (“SEC”), but omit certain information and footnote disclosure necessary to present the statements in accordance with generally accepted accounting principles in the United States of America (“GAAP”). For further information, refer to the Consolidated Financial Statements and Notes thereto included in Equinix’s Form 10-K as filed with the SEC on February 28, 2014. Results for the interim periods are not necessarily indicative of results for the entire fiscal year.
	Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of Equinix and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.
	Income Taxes
	The Company’s effective tax rates were 18.3% for the six months ended June 30, 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 employee equity awards has been reflected as an adjustment to additional paid-in capital. For the six months ended June 30, 2014, the benefits arising from employee equity award activity that resulted in an adjustment to additional paid-in capital were approximately $11,091,000.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“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 is effective for fiscal years and interim periods beginning after December 15, 2016. Early adoption is not permitted. The Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements.
	In April 2014, the FASB issued ASU 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. This ASU changes the criteria for reporting discontinued operations. This ASU is required to be applied prospectively for disposals, or classifications as held for sale, of components of an entity that occur within fiscal years and interim periods beginning after December 15, 2014, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this standard will have on disposals, or classifications as held for sale, of components of the Company that may occur in the future.
	In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This ASU requires companies to present an unrecognized tax benefit, or a portion thereof, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. To the extent a net operating loss carryforward, a similar tax loss or a tax credit carryforward, is not available at the reporting date under the applicable tax law or an entity does not intend to use its deferred tax asset for such purpose, the unrecognized tax benefit should be presented as a liability and not a reduction to deferred tax assets. This ASU is effective for fiscal years and interim periods beginning after December 15, 2013 with early adoption permitted. During the three months ended March 31, 2014, the Company adopted ASU 2013-11 and the adoption did not have a significant impact on its consolidated financial statements.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	2. Earnings Per Share
	The following table sets forth the computation of basic and diluted earnings (loss) per share (“EPS”) for the periods presented (in thousands, except per share amounts):
		Three months ended					Six months ended
		June 30,					June 30,
		2014		2013			2014		2013
	Net income (loss)	$	10,079	$	(25,287	)	$	51,416	$	7,997
	Net (income) loss attributable to redeemable non-controlling interests		1,249		(529	)		1,299		(970	)
	Net income (loss) attributable to Equinix, basic and diluted	$	11,328	$	(25,816	)	$	52,715	$	7,027
	Weighted-average shares used to calculate basic EPS		51,332		49,379			50,470		49,205
	Effect of dilutive securities:
	Employee equity awards		320		—			414		771
	Weighted-average shares used to calculate diluted EPS		51,652		49,379			50,884		49,976
	EPS attributable to Equinix:
	Basic EPS	$	0.22	$	(0.52	)	$	1.04	$	0.14
	Diluted EPS	$	0.22	$	(0.52	)	$	1.04	$	0.14
	The following table sets forth weighted-average outstanding potential shares of common stock that are not included in the diluted earnings per share calculation above because to do so would be anti-dilutive for the periods indicated (in thousands):
		Three months ended					Six months ended
		June 30,					June 30,
		2014		2013			2014		2013
	Shares reserved for conversion of 3.00% convertible subordinated notes		3,151		3,604			3,258		3,613
	Shares reserved for conversion of 4.75% convertible subordinated notes		2,849		4,432			3,636		4,432
	Common stock related to employee equity awards		294		2,124			307		122
			6,294		10,160			7,201		8,167

Change_In_Accounting_Estimate

Change In Accounting Estimate	6 Months Ended
	Jun. 30, 2014
Accounting Changes And Error Corrections [Abstract]	'
Change In Accounting Estimate	'
	3. Change In Accounting Estimate
	During the three months ended June 30, 2014, the Company reassessed the estimated period over which revenue related to non-recurring installation fees is recognized. Non-recurring installation fees, although generally paid in a lump sum upon installation, are deferred and recognized ratably over the expected life of the installation. This change was accounted for as a change in accounting estimate on a prospective basis effective April 1, 2014. The change in the estimated period that revenue related to non-recurring installation fees is recognized had the following impact on the Company’s results of operations compared to the results that would have otherwise been recorded for the three and six months ended June 30, 2014 (in thousands, except per share amounts):
	Revenues	$	(1,751	)
	Income from operations		(1,751	)
	Net income		(1,342	)
	EPS:
	Basic		(0.03	)
	Diluted		(0.03	)

Balance_Sheet_Components

Balance Sheet Components	6 Months Ended
	Jun. 30, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Balance Sheet Components	'
	4. 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 (in thousands):
			June 30,			December 31,
			2014			2013
	Cash and cash equivalents:
	Cash (1)		$	361,379		$	186,007
	Cash equivalents:
	Money market funds			28,939			74,787
	U.S. government agency securities			18,016			—
	Commercial paper			—			1,100
	Total cash and cash equivalents			408,334			261,894
	U.S. government securities			238,902			305,021
	U.S. government agency securities			27,786			125,917
	Corporate bonds			6,650			190,177
	Certificates of deposit			1,629			76,152
	Asset-backed securities			5,829			68,938
	Commercial paper			15,219			1,993
	Total marketable securities			296,015			768,198
	Total cash, cash equivalents and short-term and long-term investments		$	704,349		$	1,030,092
	-1	Excludes restricted cash.
	As of June 30, 2014 and December 31, 2013, cash equivalents included investments which were readily convertible to cash and had original maturity dates of 90 days or less. The maturities of securities classified as short-term investments were one year or less as of June 30, 2014 and December 31, 2013. The maturities of securities classified as long-term investments were greater than one year and less than three years as of June 30, 2014 and December 31, 2013.
	The following table summarizes the cost and estimated fair value of marketable securities based on their stated effective maturities as of (in thousands):
			June 30, 2014						December 31, 2013
			Amortized			Fair Value			Amortized			Fair Value
			Cost						Cost
	Due within one year		$	207,209		$	207,325		$	369,698		$	369,808
	Due after one year through three years			88,582			88,690			398,200			398,390
			$	295,791		$	296,015		$	767,898		$	768,198
	The following table summarizes the fair value and gross unrealized gains and losses related to the Company’s short-term and long-term investments in marketable securities designated as available-for-sale securities as of (in thousands):
			June 30, 2014
			Amortized			Gross			Gross			Fair Value
			Cost			unrealized			unrealized
						gains			losses
	U.S. government securities		$	238,701		$	201		$	—		$	238,902
	U.S. government agency securities			27,767			19			—			27,786
	Corporate bonds			6,647			3			—			6,650
	Certificates of deposit			1,629			—			—			1,629
	Asset-backed securities			5,828			1			—			5,829
	Commercial paper			15,219			—			—			15,219
			$	295,791		$	224		$	—		$	296,015
			December 31, 2013
			Amortized			Gross			Gross			Fair Value
			Cost			unrealized			unrealized
						gains			losses
	U.S. government securities		$	304,897		$	131		$	(7	)	$	305,021
	U.S. government agency securities			125,904			35			(22	)		125,917
	Corporate bonds			190,068			149			(40	)		190,177
	Certificates of deposit			76,126			27			(1	)		76,152
	Asset-backed securities			68,914			33			(9	)		68,938
	Commercial paper			1,989			4			—			1,993
			$	767,898		$	379		$	(79	)	$	768,198
	As of June 30, 2014, the Company did not have any securities in a loss position. If market conditions were to deteriorate, the Company could sustain other-than-temporary impairments to its investment portfolio which could result in additional realized losses being recorded in interest income, net, or securities markets could become inactive which could affect the liquidity of the Company’s investments.
	Accounts Receivable
	Accounts receivables, net, consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	Accounts receivable		$	382,610		$	323,822
	Unearned revenue			(136,894	)		(132,342	)
	Allowance for doubtful accounts			(7,885	)		(6,640	)
			$	237,831		$	184,840
	Trade accounts receivable are recorded at the invoiced amount and generally do not bear interest. The Company generally invoices its customers at the end of a calendar month for services to be provided the following month. Accordingly, unearned revenue consists of pre-billing for services that have not yet been provided, but which have been billed to customers in advance in accordance with the terms of their contracts.
	Other Current Assets
Other current assets consisted of the following as of (in thousands):
		June 30,			December 31,
		2014			2013
Prepaid expenses		$	31,322		$	26,578
Taxes receivable			46,306			21,584
Deferred tax assets, net			7,442			7,442
Other receivables			2,575			4,181
Derivative instruments			8,262			4,457
Restricted cash, current			3,287			3,210
Other current assets			1,850			4,666
		$	101,044		$	72,118
Property, Plant and Equipment
Property, plant and equipment consisted of the following as of (in thousands):
		June 30,			December 31,
		2014			2013
IBX plant and machinery		$	2,759,055		$	2,640,907
Leasehold improvements			1,069,296			1,039,847
Buildings (1)			2,033,680			1,862,562
IBX equipment			545,549			490,677
Computer equipment and software			226,869			193,524
Land			122,040			122,035
Furniture and fixtures			25,260			24,134
Construction in progress			387,659			244,254
			7,169,408			6,617,940
Less accumulated depreciation			(2,245,246	)		(2,026,290	)
		$	4,924,162		$	4,591,650
-1	Includes site improvements.
International Business Exchange® (“IBX”) plant and machinery, leasehold improvements, buildings, computer equipment and software and construction in progress recorded under capital leases aggregated $539,421,000 and $428,974,000 as of June 30, 2014 and December 31, 2013, respectively. Depreciation on the assets recorded under capital leases is included in depreciation expense and accumulated depreciation on such assets totaled $67,687,000 and $56,041,000 as of June 30, 2014 and December 31, 2013, respectively.
Goodwill and Intangible Assets
Goodwill and intangible assets, net, consisted of the following as of (in thousands):
		June 30,			December 31,
		2014			2013
Goodwill:
Americas		$	476,789		$	471,845
EMEA			446,007			435,041
Asia-Pacific			135,567			135,267
		$	1,058,363		$	1,042,153
		June 30,			December 31,
		2014			2013
Intangible assets:
Intangible asset – customer contracts		$	234,903		$	233,038
Intangible assets – favorable leases			24,885			25,147
Intangible asset – licenses			9,697			9,697
Intangible asset – others			8,934			8,859
			278,419			276,741
Less accumulated amortization			(108,289	)		(92,559	)
		$	170,130		$	184,182
The Company’s goodwill and intangible assets in EMEA (Europe, Middle East and Africa), denominated in the United Arab Emirates dirham, British pounds and Euros, goodwill and intangible assets in Asia-Pacific, denominated in Chinese yuan, Hong Kong dollars and Singapore dollars and certain goodwill and intangible assets in Americas, denominated in Canadian dollars and Brazilian reais, are subject to foreign currency fluctuations. The Company’s foreign currency translation gains and losses, including goodwill and intangible assets, are a component of other comprehensive income and loss.
For the three and six months ended June 30, 2014, the Company recorded amortization expense of $7,074,000 and $13,979,000, respectively, associated with its intangible assets. For the three and six months ended June 30, 2013, the Company recorded amortization expense of $6,864,000 and $13,623,000, respectively, associated with its intangible assets. The Company’s estimated future amortization expense related to these intangibles is as follows (in thousands):
Year ending:
2014 (6 months remaining)		$	14,828
2015			29,312
2016			28,831
2017			27,255
2018			24,120
Thereafter			45,784
		$	170,130
Other Assets
Other assets consisted of the following (in thousands):
		June 30,			December 31,
		2014			2013
Deferred tax assets, net		$	299,739		$	229,975
Prepaid expenses, non-current			49,799			61,039
Debt issuance costs, net			35,982			41,847
Deposits			32,445			25,543
Restricted cash, non-current			15,644			16,178
Derivative instruments			3,224			4,118
Other assets, non-current			6,899			8,624
		$	443,732		$	387,324
The increase in deferred tax assets, net was primarily due to the depreciation and amortization recapture as a result of changing the Company’s methods of depreciating and amortizing various data center assets for tax purposes in connection with the Company’s plan to convert to a real estate investment trust (“REIT”).
Accounts Payable and Accrued Expenses
Accounts payable and accrued expenses consisted of the following (in thousands):
		June 30,			December 31,
		2014			2013
Accounts payable		$	21,019		$	30,291
Accrued compensation and benefits			86,887			92,106
Accrued interest			46,696			48,310
Accrued taxes			39,607			32,047
Accrued utilities and security			34,010			31,314
Accrued professional fees			8,484			9,753
Accrued repairs and maintenance			5,039			3,557
Accrued other			18,379			15,845
		$	260,121		$	263,223
Other Current Liabilities
Other current liabilities consisted of the following (in thousands):
		June 30,			December 31,
		2014			2013
Deferred tax liabilities, net		$	72,004		$	72,004
Deferred installation revenue			41,644			43,145
Customer deposits			15,485			15,174
Derivative instruments			5,563			6,515
Deferred recurring revenue			6,033			5,007
Deferred rent			2,746			3,865
Asset retirement obligations			1,226			1,290
Other current liabilities			1,850			958
		$	146,551		$	147,958
Other Liabilities
Other liabilities consisted of the following (in thousands):
		June 30,			December 31,
		2014			2013
Asset retirement obligations, non-current		$	60,962		$	58,258
Deferred tax liabilities, net			70,111			69,812
Deferred installation revenue, non-current			74,966			60,947
Deferred rent, non-current			44,576			37,955
Accrued taxes, non-current			25,980			27,052
Customer deposits, non-current			4,998			5,005
Deferred recurring revenue, non-current			1,948			2,082
Other liabilities			19,212			13,844
		$	302,753		$	274,955
The Company currently leases the majority of its IBX data centers and certain equipment under non-cancelable operating lease agreements expiring through 2043. The IBX data center 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.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2014
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Derivatives and Hedging Activities	'
	5. Derivatives and Hedging Activities
	Derivatives Designated as Hedging Instruments
	Cash Flow Hedges. The Company hedges 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. As of June 30, 2014, the Company had a total of 101 cash flow hedge instruments with maturity dates ranging from July 2014 to January 2015 as follows (in thousands):
			Notional		Fair Value (1)			Accumulated
			Amount					other
								comprehensive
								income (loss) (2)
	Derivative assets		$	111,896	$	2,006		$	2,001
	Derivative liabilities			155,716		(3,555	)		(3,497	)
			$	267,612	$	(1,549	)	$	(1,496	)
	-1	A total of $2,006 of derivative assets related to cash flow hedges are included in the condensed consolidated balance sheets within other current assets. A total of $3,555 of derivative liabilities related to cash flow hedges are included in the condensed consolidated balance sheets within other current liabilities.
	-2	Included in the condensed consolidated balance sheets within accumulated other comprehensive income (loss).
	As of December 31, 2013, the Company had a total of 69 cash flow hedge instruments with maturity dates ranging from January 2014 to January 2015 as follows (in thousands):
			Notional		Fair Value (1)			Accumulated
			Amount					other
								comprehensive
								income (loss) (2)
	Derivative assets		$	127,968	$	2,102		$	2,107
	Derivative liabilities			200,686		(3,855	)		(3,857	)
			$	328,654	$	(1,753	)	$	(1,750	)
	-1	A total of $2,099 and $3 of derivative assets related to cash flow hedges are included in the condensed consolidated balance sheets within other current assets and other assets, respectively. A total of $3,818 and $37 of derivative liabilities related to cash flow hedges are included in the condensed consolidated balance sheets within other current liabilities and other liabilities, respectively.
	-2	Included in the condensed consolidated balance sheets within accumulated other comprehensive income (loss).
	During the three and six months ended June 30, 2014, there were no ineffective cash flow hedges. During the three months ended June 30, 2014, the amount of gains (losses) reclassified from accumulated other comprehensive income (loss) to revenue and operating expenses were not significant. During the six months ended June 30, 2014, losses of $2,662,000 were reclassified from accumulated other comprehensive income (loss) to revenue and gains reclassified from accumulated other comprehensive income (loss) to operating expenses were not significant. The Company did not enter into any cash flow hedges during the six months ended June 30, 2013.
	Derivatives Not Designated as Hedges
	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 condensed consolidated statements of operations. During the three months ended June 30, 2014 and 2013, gains (losses) associated with these embedded derivatives were not significant. During the six months ended June 30, 2014 and 2013, the Company recognized a net loss of $2,416,000 and net gain of $4,131,000, respectively, associated with these embedded derivatives.
	Economic Hedges of Embedded Derivatives. The Company uses foreign currency forward contracts to 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”). 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 three and six months ended June 30, 2014 and gains (losses) from these contracts were not significant for the periods then ended. The Company entered into various economic hedges of embedded derivatives during the three and six months ended June 30, 2013 and recognized a net loss of $2,091,000 and $3,095,000, respectively, for the periods then ended.
	Foreign Currency Forward and Options Contracts. The Company also uses foreign currency forward and options 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 the foreign currency-denominated assets and liabilities change. Gains and losses on these contracts are included in other income (expense), net, along with those foreign currency gains and losses of the related foreign currency-denominated assets and liabilities associated with these foreign currency forward and options contracts. The Company entered into various foreign currency forward and options contracts during the three and six months ended June 30, 2014 and recognized a net gain of $2,017,000 and $2,901,000, respectively for the periods then ended. The Company entered into various foreign currency forward and options contracts during the three and six months ended June 30, 2013 and gains (losses) from these foreign currency forward contracts were not significant during these periods.
	Offsetting Derivative Assets and Liabilities
	The following table presents the fair value of derivative instruments recognized in the Company’s condensed consolidated balance sheets as of June 30, 2014 (in thousands):
			Gross		Gross			Net			Gross			Net
			Amounts		amounts			amounts (1)			amounts not
					offset in the						offset in the
					balance						balance
					sheet						sheet (2)
	Assets:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	2,006	$	—		$	2,006		$	(2,002	)	$	4
	Not designated as hedging instruments:
	Embedded derivatives			4,324		—			4,324			—			4,324
	Economic hedges of embedded derivatives			492		—			492			—			492
	Foreign currency forward and option contracts			4,664		—			4,664			(943	)		3,721
				9,480		—			9,480			(943	)		8,537
	Additional netting benefit			—		—			—			(787	)		(787	)
			$	11,486	$	—		$	11,486		$	(3,732	)	$	7,754
	Liabilities:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	3,555	$	—		$	3,555		$	(2,002	)	$	1,553
	Not designated as hedging instruments:
	Embedded derivatives			379		—			379			—			379
	Economic hedges of embedded derivatives			—		—			—			—			—
	Foreign currency forward and option contracts			1,730		—			1,730			(943	)		787
				2,109		—			2,109			(943	)		1,166
	Additional netting benefit			—		—			—			(787	)		(787	)
			$	5,664	$	—		$	5,664		$	(3,732	)	$	1,932
	-1	As presented in the Company’s condensed 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 condensed consolidated balance sheets as of December 31, 2013 (in thousands):
			Gross		Gross			Net			Gross			Net
			Amounts		amounts			amounts (1)			amounts not
					offset in the						offset in the
					balance						balance
					sheet						sheet (2)
	Assets:
Designated as hedging instruments:
Foreign currency forward contracts		$	2,102	$	—		$	2,102		$	(2,102	)	$	—
Not designated as hedging instruments:
Embedded derivatives			6,296		—			6,296			—			6,296
Foreign currency forward and option contracts			177		—			177			(177	)		—
			6,473		—			6,473			(177	)		6,296
		$	8,575	$	—		$	8,575		$	(2,279	)	$	6,296
Liabilities:
Designated as hedging instruments:
Foreign currency forward contracts		$	3,855	$	—		$	3,855		$	(2,102	)	$	1,753
Not designated as hedging instruments:
Embedded derivatives			115		—			115			—			115
Economic hedges of embedded derivatives			1,315		—			1,315			—			1,315
Foreign currency forward and option contracts			1,289		—			1,289			(177	)		1,112
			2,719		—			2,719			(177	)		2,542
		$	6,574	$	—		$	6,574		$	(2,279	)	$	4,295
-1	As presented in the Company’s condensed 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	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	6. Fair Value Measurements
	The Company’s financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2014 were as follows (in thousands):
			Fair value		Fair value
			at June 30,		measurement using
			2014		Level 1		Level 2
	Assets:
	Cash		$	361,379	$	361,379	$	—
	Money market and deposit accounts			28,939		28,939		—
	U.S. government securities			238,902		238,902		—
	U.S. government agency securities			45,802		—		45,802
	Corporate bonds			6,650		—		6,650
	Certificates of deposit			1,629		—		1,629
	Asset-backed securities			5,829		—		5,829
	Commercial paper			15,219		—		15,219
	Derivative instruments (1)			11,486		—		11,486
			$	715,835	$	629,220	$	86,615
	Liabilities:
	Derivative instruments (1)		$	5,664	$	—	$	5,664
	-1	Includes embedded derivatives, economic hedges of embedded derivatives and foreign currency forward and options contracts. Amounts are included within other current assets, other assets, other current liabilities and other liabilities in the Company’s accompanying condensed consolidated balance sheet.
	The Company did not have any Level 3 financial assets or financial liabilities as of June 30, 2014.
	Valuation Methods
	Fair value estimates are made as of a specific point in time based on methods using present value 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 and money market funds 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. These investments include 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 determined that the major security types held as of June 30, 2014 were primarily cash and money market funds, U.S. government and agency securities, corporate bonds, certificate of deposits, commercial paper and asset-backed securities. The Company uses the specific identification method in computing realized gains and losses. 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, including embedded derivatives and economic hedges of embedded derivatives, the Company uses forward contract 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. 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 six months ended June 30, 2014, the Company did not have any nonfinancial assets or liabilities measured at fair value on a recurring basis.

Related_Party_Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	7. 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):
		Three months ended				Six months ended
		June 30,				June 30,
		2014		2013		2014		2013
	Revenues	$	2,206	$	7,264	$	4,327	$	15,740
	Costs and services		3,278		2,068		3,439		4,533
		As of June 30,
		2014		2013
	Accounts receivable	$	1,698	$	4,142
	Accounts payable		—		514
	In connection with the acquisition of ALOG Data Centers do Brasil S.A. and its subsidiaries (“ALOG”) (the “ALOG Acquisition”), the Company acquired a lease for one of the Brazilian IBX data centers in which the lessor is a member of ALOG management. This lease contains an option to purchase the underlying property for fair market value on the date of purchase. The Company accounts for this lease as a financing obligation pursuant to the accounting standard for lessee’s involvement in asset construction due to the structural building work the Company undertook. As of June 30, 2014, the Company had a financing obligation liability totaling approximately $3,881,000 related to this lease on its condensed consolidated balance sheet. This amount is considered a related party liability, which is not reflected in the related party data presented above.

Leases

Leases	6 Months Ended
	Jun. 30, 2014
Leases [Abstract]	'
Leases	'
	8. Leases
	Capital Lease and Other Financing Obligations
	New York 1 Capital Lease
	In June 2014, the Company entered into a lease amendment to extend the lease term of the Company’s New York 1 IBX data center (the “New York 1 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 New York 1 Lease as a result of the lease amendment and determined that the lease should be accounted for as a capital lease (the “New York 1 Capital Lease”). The Company recorded a capital lease asset totaling approximately $28,269,000 and a capital lease liability totaling approximately $28,490,000 during the three months ended June 30, 2014. Monthly payments under the New York 1 Capital Lease will be made through December 2029.
	Silicon Valley 2 Capital Lease
	In March 2014, the Company entered into a lease amendment to extend the lease term of the Company’s Silicon Valley 2 IBX data center (the “Silicon Valley 2 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 Silicon Valley 2 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 “Silicon Valley 2 Capital Lease”). The Company recorded a capital lease asset totaling approximately $81,542,000 and a capital lease liability totaling approximately $82,000,000 during the three months ended March 31, 2014. Monthly payments under the Silicon Valley 2 Capital Lease commenced in March 2014 and will be made through September 2029. The Company has certain renewal options available after September 2029, which have not been included in the lease term.
	Dallas IBX Financing
	In January and April 2014, the Company took possession of additional space under the terms of an existing lease agreement and a lease amendment in a property in Dallas where the Company operates its Dallas 1, Dallas 2, Dallas 3 and Dallas 6 IBX data centers. Pursuant to the accounting standard for lessee’s involvement in asset construction, the Company is considered the accounting owner of the assets during the construction phase due to the building work that the Company undertook. As a result, the Company recorded incremental financed assets and corresponding financing obligation liabilities totaling approximately $28,089,000 during the three months ended June 30, 2014 and $13,908,000 during the three months ended March 31, 2014 (the “Dallas IBX Financing”). Monthly payments under the Dallas IBX Financing will be made through December 2029.
	Maturities of Capital Lease and Other Financing Obligations
	The Company’s capital lease and other financing obligations are summarized as follows (in thousands):
		Capital lease			Other			Total
		obligations			financing
					obligations
	2014 (6 months remaining)	$	22,378		$	21,194		$	43,572
	2015		57,380			54,197			111,577
	2016		58,311			58,658			116,969
	2017		59,604			58,717			118,321
	2018		61,387			61,695			123,082
	Thereafter		846,037			575,964			1,422,001
	Total minimum lease payments		1,105,097			830,425			1,935,522
	Plus amount representing residual property value		—			422,518			422,518
	Less estimated building costs		—			(17,514	)		(17,514	)
	Less amount representing interest		(565,328	)		(640,591	)		(1,205,919	)
	Present value of net minimum lease payments		539,769			594,838			1,134,607
	Less current portion		(10,173	)		(8,204	)		(18,377	)
		$	529,596		$	586,634		$	1,116,230

Debt_Facilities

Debt Facilities	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Debt Facilities	'
	9. Debt Facilities
	Mortgage and Loans Payable
	The Company’s mortgage and loans payable consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	U.S. term loan		$	120,000		$	140,000
	ALOG financings			65,972			67,882
	Mortgage payable			42,634			43,497
	Other loans payable			2,048			1,829
				230,654			253,208
	Less current portion			(54,470	)		(53,508	)
			$	176,184		$	199,700
	Convertible Debt
	The Company’s convertible debt consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	3.00% Convertible Subordinated Notes		$	178,787		$	395,986
	4.75% Convertible Subordinated Notes			157,889			373,724
				336,676			769,710
	Less amount representing debt discount			(15,762	)		(45,508	)
			$	320,914		$	724,202
	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”). Holders of the 3.00% Convertible Subordinated Notes may convert their notes at their option on any day up to and including the business day immediately preceding the maturity date into shares of the Company’s common stock. The base conversion rate is 7.436 shares of common stock per $1,000 principal amount of 3.00% Convertible Subordinated Notes, subject to adjustment. This represents a base conversion price of approximately $134.48 per share of common stock. If, at the time of conversion, the applicable stock price of the Company’s common stock exceeds the base conversion price, the conversion rate will be determined pursuant to a formula resulting in the receipt of up to 4.4616 additional shares of common stock per $1,000 principal amount of the 3.00% Convertible Subordinated Notes, subject to adjustment. However, in no event would the total number of shares issuable upon conversion of the 3.00% Convertible Subordinated Notes exceed 11.8976 per $1,000 principal amount of 3.00% Convertible Subordinated Notes, subject to anti-dilution adjustments, or the equivalent of $84.05 per share of the Company’s common stock or a total of 4,711,283 shares of the Company’s common stock.
	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 condensed consolidated statement of operations. In the Company’s condensed consolidated statement of cash flows for the six months ended June 30, 2014, the premium paid was included within net cash used in financing activities and the accrued interest paid was included within net cash provided by operating activities.
	The Company expects the remaining holders of the 3.00% Convertible Subordinated Notes to convert their notes into shares of the Company’s common stock prior to the 3.00% Convertible Subordinated Notes maturity date since the Company’s stock price is substantially greater than the base conversion price of the notes. As a result, the principal amount of the 3.00% Convertible Subordinated Notes has been classified as a non-current liability on the Company’s condensed consolidated balance sheet as of June 30, 2014 due to the Company’s expectation to settle the 3.00% Convertible Subordinated Notes in shares of the Company’s common stock instead of cash. However, if the Company’s stock price decreases to or below the base conversion price prior to the maturity date of the notes, the holders of the 3.00% Convertible Subordinated Notes will likely not convert their notes and, as a result, the Company will be required to settle the remaining principal amount of the notes in cash. As of June 30, 2014, had the remaining holders of the 3.00% Convertible Subordinated Notes converted their notes, the 3.00% Convertible Subordinated Notes would have been convertible into 1,620,518 shares of the Company’s common stock.
	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”). 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 converted, 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. Upon conversion, if the Company elects to pay a sufficiently large portion of the conversion obligation in cash, additional consideration beyond the principal amount of the 4.75% Convertible Subordinated Notes will be required.
	The initial conversion rate is 11.8599 shares of common stock per $1,000 principal amount of 4.75% Convertible Subordinated Notes, subject to adjustment. This represents an initial conversion price of approximately $84.32 per share of common stock. 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 conversion price per share of common stock on such last trading day, which was $109.62 per share (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;
		•		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; or
		•		at any time on or after March 15, 2016.
	In May and June 2014, the Company entered into agreements with certain note holders to exchange an aggregate of $215,830,000 of the principal amount of the 4.75% Convertible Subordinated Notes for 2,411,851 shares of the Company’s common stock and $51,671,000 in cash, comprised of accrued interest, a 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 during the three months ended June 30, 2014 in its condensed 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 condensed consolidated statement of cash flows for the six months ended June 30, 2014, the premium paid and cash paid in lieu of issuing shares to settle a portion of the principal amount were included within net cash used in financing activities and the accrued interest paid was included within net cash provided by operating activities.
	In May and June 2014, the Company also amended the capped call transactions (“the Capped Call”) that were entered into upon, but separate from, the issuance of the 4.75% Convertible Subordinated Notes. The Capped Call was amended 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. The amendment to the Capped Call had no impact to the Company’s condensed consolidated financial statements for the six months ended June 30, 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.
	Holders of the 4.75% Convertible Subordinated Notes were eligible to convert their notes during the three months ended June 30, 2014 and are eligible to convert their notes during the three months ended September 30, 2014, since the Stock Price Condition Conversion Clause was met during the applicable periods. As of June 30, 2014, the Company has the intent and ability to settle the principal amount of any conversions of the 4.75% Convertible Subordinated Notes in shares of the Company’s common stock. As a result, the Company determined that the principal amount of the 4.75% Convertible Subordinated Notes should continue to be classified as a non-current liability on the Company’s condensed consolidated balance sheet as of June 30, 2014 due to the Company’s intent and ability to settle the principal amount of the 4.75% Convertible Subordinated Notes in shares of the Company’s common stock instead of cash or a combination of cash and shares of the Company’s common stock. As of June 30, 2014, had the remaining holders of the 4.75% Convertible Subordinated Notes converted their notes, the 4.75% Convertible Subordinated Notes would have been convertible into a maximum of 1,872,587 shares of the Company’s common stock.
	Loss on Debt Extinguishment
	During the three and six months ended June 30, 2014, the Company recorded $51,183,000 of loss on debt extinguishment related to the exchanges of the 3.00% Convertible Subordinated Notes and 4.75% Convertible Subordinated Notes, as discussed above. During the three and six months ended June 30, 2013, the Company recorded $93,602,000 of loss on debt extinguishment related to the redemption of the $750,000,000 aggregate principal amount of 8.125% senior notes.
	Senior Notes
	The Company’s senior notes consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	5.375% Senior Notes due 2023		$	1,000,000		$	1,000,000
	7.00% Senior Notes due 2021			750,000			750,000
	4.875% Senior Notes due 2020			500,000			500,000
			$	2,250,000		$	2,250,000
	Maturities of Debt Facilities
	The following table sets forth maturities of the Company’s debt, including mortgage and loans payable, convertible debt and senior notes, as of June 30, 2014 (in thousands):
	Year ending:
	2014 (6 months remaining)		$	206,154
	2015			58,443
	2016 (1)			220,339
	2017			36,046
	2018			9,639
	Thereafter			2,286,709
			$	2,817,330
	-1	Gross of $15,762 debt discount from the 4.75% Convertible Subordinated Notes.
	Fair Value of Debt Facilities
	The following table sets forth the estimated fair values of the Company’s mortgage and loans payable, senior notes and convertible debt, including current maturities, as of (in thousands):
			June 30,			December 31,
			2014			2013
	Mortgage and loans payable		$	234,024		$	254,607
	Convertible debt			503,911			1,009,744
	Senior notes			2,373,750			2,302,290
The Company has determined that the inputs used to value its debt facilities fall within Level 2 of the fair value hierarchy.
Interest Charges
The following table sets forth total interest costs incurred and total interest costs capitalized for the periods presented (in thousands):
		Three months ended						Six months ended
		June 30,						June 30,
		2014			2013			2014		2013
Interest expense		$	66,874		$	61,001		$	135,694	$	121,332
Interest capitalized			4,079			2,658			7,485		5,550
Interest charges incurred		$	70,953		$	63,659		$	143,179	$	126,882

Redeemable_NonControlling_Inte

Redeemable Non-Controlling Interests	6 Months Ended
	Jun. 30, 2014
Noncontrolling Interest [Abstract]	'
Redeemable Non-Controlling Interests	'
	10. 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 interests		(1,299	)
	Other comprehensive income attributable to redeemable non-controlling interests		2,817
	Increase in redemption value of non-controlling interests		100,065
	Impact of foreign currency translation		1,671
	Balance as of June 30, 2014	$	227,156
	In June 2014, the Company, Riverwood Capital L.P. (“Riverwood”), and the other parties thereto, amended the shareholders’ agreement governing their investment in ALOG to extend the time period granted to the Company in 2014 to exercise its right to purchase Riverwood’s interest in ALOG, along with the approximate 10% of ALOG owned by ALOG management, to July 18, 2014. In July 2014, the Company purchased Riverwood’s interest in ALOG, along with the approximate 10% of ALOG owned by ALOG management (see Note 14).

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	11. Commitments and Contingencies
	Purchase Commitments
	Primarily as a result of the Company’s various IBX expansion projects, as of June 30, 2014, the Company was contractually committed for $267,162,000 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 June 30, 2014, such as commitments to purchase power in select locations through the remainder of 2014 and thereafter, and other open purchase orders for goods or services to be delivered or provided during the remainder of 2014 and thereafter. Such other miscellaneous purchase commitments totaled $205,555,000 as of June 30, 2014.

Stockholders_Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	12. Stockholders’ Equity
	Accumulated Other Comprehensive Loss
	The components of accumulated other comprehensive loss, net of tax, are as follows (in thousands):
		Balance as of			Net			Balance as of
		December 31,			Change			June 30,
		2013						2014
	Foreign currency translation gain (loss)	$	(132,881	)	$	38,051		$	(94,830	)
	Unrealized gain (loss) on cash flow hedges		(1,750	)		254			(1,496	)
	Unrealized gain (loss) on available for sale securities		(257	)		765			508
	Other comprehensive loss (income) attributable to redeemable non-controlling interests		21,121			(2,817	)		18,304
		$	(113,767	)	$	36,253		$	(77,514	)
	Changes in foreign currency exchange rates 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. As of June 30, 2014, the U.S. dollar was generally weaker relative to certain of the currencies of the foreign countries in which the Company operates. This overall weakness of the U.S. dollar had an overall positive impact on the Company’s consolidated financial position because the foreign denominations translated into more U.S. dollars as evidenced by a decrease in foreign currency translation loss for the six months ended June 30, 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 operates 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.
	Treasury Stock
	During the six months ended June 30, 2014, the Company repurchased a total of 1,315,353 shares of its common stock in the open market at an average price of $194.16 per share for total consideration of $255,383,000 under a share repurchase program that was approved by the Company’s Board of Directors in December 2013 (the “2013 Share Repurchase Program”). As of June 30, 2014, the Company may purchase up to an additional $195,818,000 in value of the Company’s common stock through December 31, 2014 under this share repurchase program.
	During the six months ended June 30, 2014, the Company reissued a total of 1,704,061 shares of its treasury stock with a total value of $287,108,000, primarily related to the exchanges of the 3.00% Convertible Subordinated Notes and 4.75% Convertible Subordinated Notes.
	Stock-Based Compensation
	In March 2014, the Compensation Committee and the Stock Award Committee of the Company’s Board of Directors approved the issuance of an aggregate of 613,560 shares of restricted stock units to certain employees, including executive officers, pursuant to the 2000 Equity Incentive Plan, as part of the Company’s annual refresh program. These equity awards are subject to vesting provisions and have a weighted-average grant date fair value of $179.18 and a weighted-average requisite service period of 3.34 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. There were no significant changes in the assumptions used to determine the fair value of restricted stock units with a service and market condition that were granted during March 2014 and restricted stock units granted during February 2013.
	The following table presents, by operating expense category, the Company’s stock-based compensation expense recognized in the Company’s condensed consolidated statement of operations (in thousands):
		Three months ended						Six months ended
		June 30,						June 30,
		2014			2013			2014			2013
	Cost of revenues	$	2,228		$	1,794		$	4,098		$	3,396
	Sales and marketing		7,943			6,825			14,943			12,546
	General and administrative		23,659			15,575			39,770			32,088
		$	33,830		$	24,194		$	58,811		$	48,030

Segment_Information

Segment Information	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	13. 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 from operations plus depreciation, amortization, accretion, stock-based compensation expense, restructuring charges, impairment charges and acquisition costs as presented below (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Adjusted EBITDA:
	Americas		$	158,125		$	154,291		$	307,688		$	298,808
	EMEA			65,351			50,689			128,556			99,418
	Asia-Pacific			51,801			43,055			99,421			90,697
	Total adjusted EBITDA			275,277			248,035			535,665			488,923
	Depreciation, amortization and accretion expense			(116,074	)		(110,189	)		(229,684	)		(218,792	)
	Stock-based compensation expense			(33,830	)		(24,194	)		(58,811	)		(48,030	)
	Restructuring charges			—			4,837			—			4,837
	Acquisition costs			(676	)		(2,526	)		(861	)		(6,188	)
	Income from operations		$	124,697		$	115,963		$	246,309		$	220,750
	The Company also provides the following additional segment disclosures (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Total revenues:
	Americas		$	342,256		$	313,468		$	672,289		$	619,260
	EMEA			157,162			127,009			308,592			246,978
	Asia-Pacific			105,743			88,394			204,333			178,767
			$	605,161		$	528,871		$	1,185,214		$	1,045,005
	Total depreciation and amortization:
	Americas		$	62,765		$	64,757		$	122,792		$	127,354
	EMEA			27,709			23,254			57,421			46,129
	Asia-Pacific			25,238			21,174			49,492			42,907
			$	115,712		$	109,185		$	229,705		$	216,390
	Capital expenditures:
	Americas		$	87,707		$	58,272	(1)	$	155,222		$	103,113	(1)
	EMEA			27,101			32,293			42,665			48,862
	Asia-Pacific			45,008			35,258			84,627	(2)		49,515
			$	159,816		$	125,823		$	282,514		$	201,490
	-1	Includes the deposit of the purchase price for the New York IBX Data Center Acquisition totaling $2,960.
	-2	Includes the purchase of real estate totaling $16,791.
	The Company’s long-lived assets are located in the following geographic areas as of (in thousands):
			June 30,			December 31,
			2014			2013
	Americas		$	2,779,115		$	2,549,863
	EMEA			1,188,295			1,188,559
	Asia-Pacific			956,752			853,228
			$	4,924,162		$	4,591,650
	Revenue information on a services basis is as follows (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Colocation		$	452,660		$	398,087		$	887,283		$	792,918
	Interconnection			90,969			78,353			177,995			154,344
	Managed infrastructure			27,856			24,791			53,240			47,911
	Rental			2,673			583			5,343			1,163
	Recurring revenues			574,158			501,814			1,123,861			996,336
	Non-recurring revenues			31,003			27,057			61,353			48,669
			$	605,161		$	528,871		$	1,185,214		$	1,045,005
	No single customer accounted for 10% or greater of the Company’s revenues for the three and six months ended June 30, 2014 and 2013. No single customer accounted for 10% or greater of the Company’s gross accounts receivable as of June 30, 2014 and December 31, 2013.

Subsequent_Events

Subsequent Events	6 Months Ended
	Jun. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	14. Subsequent Events
	In July 2014, the Company purchased Riverwood’s interest in ALOG, along with the approximate 10% of ALOG owned by ALOG management, for cash consideration of approximately $225,000,000. As a result, the Company owns 100% of the outstanding shares of ALOG. The Company’s assessment of the accounting impact of the transaction is not yet complete.
	In July 2014, the Company repurchased a total of 202,390 shares of its common stock in the open market at an average price of $210.36 per share for total consideration of $42,576,000 under the 2013 Share Repurchase Program.

Basis_of_Presentation_and_Sign1

Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements have been prepared by Equinix, Inc. (“Equinix” or the “Company”) and reflect all adjustments, consisting only of normal recurring adjustments, which in the opinion of management are necessary to fairly state the financial position and the results of operations for the interim periods presented. The condensed consolidated balance sheet data as of December 31, 2013 has been derived from audited consolidated financial statements as of that date. The consolidated financial statements have been prepared in accordance with the regulations of the Securities and Exchange Commission (“SEC”), but omit certain information and footnote disclosure necessary to present the statements in accordance with generally accepted accounting principles in the United States of America (“GAAP”). For further information, refer to the Consolidated Financial Statements and Notes thereto included in Equinix’s Form 10-K as filed with the SEC on February 28, 2014. Results for the interim periods are not necessarily indicative of results for the entire fiscal year.
Consolidation	'
	Consolidation
	The accompanying unaudited condensed consolidated financial statements include the accounts of Equinix and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.
Income Taxes	'
	Income Taxes
	The Company’s effective tax rates were 18.3% for the six months ended June 30, 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 employee equity awards has been reflected as an adjustment to additional paid-in capital. For the six months ended June 30, 2014, the benefits arising from employee equity award activity that resulted in an adjustment to additional paid-in capital were approximately $11,091,000.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“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 is effective for fiscal years and interim periods beginning after December 15, 2016. Early adoption is not permitted. The Company is currently evaluating the impact that the adoption of this standard will have on its consolidated financial statements.
	In April 2014, the FASB issued ASU 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. This ASU changes the criteria for reporting discontinued operations. This ASU is required to be applied prospectively for disposals, or classifications as held for sale, of components of an entity that occur within fiscal years and interim periods beginning after December 15, 2014, with early adoption permitted. The Company is currently evaluating the impact that the adoption of this standard will have on disposals, or classifications as held for sale, of components of the Company that may occur in the future.
	In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This ASU requires companies to present an unrecognized tax benefit, or a portion thereof, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. To the extent a net operating loss carryforward, a similar tax loss or a tax credit carryforward, is not available at the reporting date under the applicable tax law or an entity does not intend to use its deferred tax asset for such purpose, the unrecognized tax benefit should be presented as a liability and not a reduction to deferred tax assets. This ASU is effective for fiscal years and interim periods beginning after December 15, 2013 with early adoption permitted. During the three months ended March 31, 2014, the Company adopted ASU 2013-11 and the adoption did not have a significant impact on its consolidated financial statements.
Operating Lease	'
	The Company currently leases the majority of its IBX data centers and certain equipment under non-cancelable operating lease agreements expiring through 2043. The IBX data center 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.
Cash Flow Hedges	'
	Cash Flow Hedges. The Company hedges 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.
Derivatives Not Designated as Hedges	'
	Derivatives Not Designated as Hedges
	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 condensed consolidated statements of operations. During the three months ended June 30, 2014 and 2013, gains (losses) associated with these embedded derivatives were not significant. During the six months ended June 30, 2014 and 2013, the Company recognized a net loss of $2,416,000 and net gain of $4,131,000, respectively, associated with these embedded derivatives.
	Economic Hedges of Embedded Derivatives. The Company uses foreign currency forward contracts to 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”). 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 three and six months ended June 30, 2014 and gains (losses) from these contracts were not significant for the periods then ended. The Company entered into various economic hedges of embedded derivatives during the three and six months ended June 30, 2013 and recognized a net loss of $2,091,000 and $3,095,000, respectively, for the periods then ended.
	Foreign Currency Forward and Options Contracts. The Company also uses foreign currency forward and options 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 the foreign currency-denominated assets and liabilities change. Gains and losses on these contracts are included in other income (expense), net, along with those foreign currency gains and losses of the related foreign currency-denominated assets and liabilities associated with these foreign currency forward and options contracts. The Company entered into various foreign currency forward and options contracts during the three and six months ended June 30, 2014 and recognized a net gain of $2,017,000 and $2,901,000, respectively for the periods then ended. The Company entered into various foreign currency forward and options contracts during the three and six months ended June 30, 2013 and gains (losses) from these foreign currency forward contracts were not significant during these periods.
Fair Value Valuation Methods	'
	Valuation Methods
	Fair value estimates are made as of a specific point in time based on methods using present value 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 and money market funds 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. These investments include 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 determined that the major security types held as of June 30, 2014 were primarily cash and money market funds, U.S. government and agency securities, corporate bonds, certificate of deposits, commercial paper and asset-backed securities. The Company uses the specific identification method in computing realized gains and losses. 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, including embedded derivatives and economic hedges of embedded derivatives, the Company uses forward contract 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. 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.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings (Loss) Per Share	'
	The following table sets forth the computation of basic and diluted earnings (loss) per share (“EPS”) for the periods presented (in thousands, except per share amounts):
		Three months ended					Six months ended
		June 30,					June 30,
		2014		2013			2014		2013
	Net income (loss)	$	10,079	$	(25,287	)	$	51,416	$	7,997
	Net (income) loss attributable to redeemable non-controlling interests		1,249		(529	)		1,299		(970	)
	Net income (loss) attributable to Equinix, basic and diluted	$	11,328	$	(25,816	)	$	52,715	$	7,027
	Weighted-average shares used to calculate basic EPS		51,332		49,379			50,470		49,205
	Effect of dilutive securities:
	Employee equity awards		320		—			414		771
	Weighted-average shares used to calculate diluted EPS		51,652		49,379			50,884		49,976
	EPS attributable to Equinix:
	Basic EPS	$	0.22	$	(0.52	)	$	1.04	$	0.14
	Diluted EPS	$	0.22	$	(0.52	)	$	1.04	$	0.14
Anti-dilutive Potential Shares of Common Stock Excluded from Computation of Earnings Per Share	'
	The following table sets forth weighted-average outstanding potential shares of common stock that are not included in the diluted earnings per share calculation above because to do so would be anti-dilutive for the periods indicated (in thousands):
		Three months ended					Six months ended
		June 30,					June 30,
		2014		2013			2014		2013
	Shares reserved for conversion of 3.00% convertible subordinated notes		3,151		3,604			3,258		3,613
	Shares reserved for conversion of 4.75% convertible subordinated notes		2,849		4,432			3,636		4,432
	Common stock related to employee equity awards		294		2,124			307		122
			6,294		10,160			7,201		8,167

Change_In_Accounting_Estimate_

Change In Accounting Estimate (Tables)	6 Months Ended
	Jun. 30, 2014
Accounting Changes And Error Corrections [Abstract]	'
Schedule of Change in Revenue Due to Change in Accounting Estimate	'
	The change in the estimated period that revenue related to non-recurring installation fees is recognized had the following impact on the Company’s results of operations compared to the results that would have otherwise been recorded for the three and six months ended June 30, 2014 (in thousands, except per share amounts):
	Revenues	$	(1,751	)
	Income from operations		(1,751	)
	Net income		(1,342	)
	EPS:
	Basic		(0.03	)
	Diluted		(0.03	)

Balance_Sheet_Components_Table

Balance Sheet Components (Tables)	6 Months Ended
	Jun. 30, 2014
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 (in thousands):
			June 30,			December 31,
			2014			2013
	Cash and cash equivalents:
	Cash (1)		$	361,379		$	186,007
	Cash equivalents:
	Money market funds			28,939			74,787
	U.S. government agency securities			18,016			—
	Commercial paper			—			1,100
	Total cash and cash equivalents			408,334			261,894
	U.S. government securities			238,902			305,021
	U.S. government agency securities			27,786			125,917
	Corporate bonds			6,650			190,177
	Certificates of deposit			1,629			76,152
	Asset-backed securities			5,829			68,938
	Commercial paper			15,219			1,993
	Total marketable securities			296,015			768,198
	Total cash, cash equivalents and short-term and long-term investments		$	704,349		$	1,030,092
	-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 securities based on their stated effective maturities as of (in thousands):
			June 30, 2014						December 31, 2013
			Amortized			Fair Value			Amortized			Fair Value
			Cost						Cost
	Due within one year		$	207,209		$	207,325		$	369,698		$	369,808
	Due after one year through three years			88,582			88,690			398,200			398,390
			$	295,791		$	296,015		$	767,898		$	768,198
Summary of Fair Value and Gross Unrealized Gains and Losses on Available-for-Sale Securities	'
	The following table summarizes the fair value and gross unrealized gains and losses related to the Company’s short-term and long-term investments in marketable securities designated as available-for-sale securities as of (in thousands):
			June 30, 2014
			Amortized			Gross			Gross			Fair Value
			Cost			unrealized			unrealized
						gains			losses
	U.S. government securities		$	238,701		$	201		$	—		$	238,902
	U.S. government agency securities			27,767			19			—			27,786
	Corporate bonds			6,647			3			—			6,650
	Certificates of deposit			1,629			—			—			1,629
	Asset-backed securities			5,828			1			—			5,829
	Commercial paper			15,219			—			—			15,219
			$	295,791		$	224		$	—		$	296,015
			December 31, 2013
			Amortized			Gross			Gross			Fair Value
			Cost			unrealized			unrealized
						gains			losses
	U.S. government securities		$	304,897		$	131		$	(7	)	$	305,021
	U.S. government agency securities			125,904			35			(22	)		125,917
	Corporate bonds			190,068			149			(40	)		190,177
	Certificates of deposit			76,126			27			(1	)		76,152
	Asset-backed securities			68,914			33			(9	)		68,938
	Commercial paper			1,989			4			—			1,993
			$	767,898		$	379		$	(79	)	$	768,198
Accounts Receivables, Net	'
	Accounts receivables, net, consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	Accounts receivable		$	382,610		$	323,822
	Unearned revenue			(136,894	)		(132,342	)
	Allowance for doubtful accounts			(7,885	)		(6,640	)
			$	237,831		$	184,840
Other Current Assets	'
	Other current assets consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	Prepaid expenses		$	31,322		$	26,578
	Taxes receivable			46,306			21,584
	Deferred tax assets, net			7,442			7,442
	Other receivables			2,575			4,181
	Derivative instruments			8,262			4,457
	Restricted cash, current			3,287			3,210
	Other current assets			1,850			4,666
			$	101,044		$	72,118
Property, Plant and Equipment, Net	'
	Property, plant and equipment consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	IBX plant and machinery		$	2,759,055		$	2,640,907
	Leasehold improvements			1,069,296			1,039,847
	Buildings (1)			2,033,680			1,862,562
	IBX equipment			545,549			490,677
	Computer equipment and software			226,869			193,524
	Land			122,040			122,035
	Furniture and fixtures			25,260			24,134
	Construction in progress			387,659			244,254
				7,169,408			6,617,940
	Less accumulated depreciation			(2,245,246	)		(2,026,290	)
			$	4,924,162		$	4,591,650
	-1	Includes site improvements.
Goodwill and Intangible Assets	'
	Goodwill and intangible assets, net, consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	Goodwill:
	Americas		$	476,789		$	471,845
	EMEA			446,007			435,041
	Asia-Pacific			135,567			135,267
			$	1,058,363		$	1,042,153
			June 30,			December 31,
			2014			2013
	Intangible assets:
	Intangible asset – customer contracts		$	234,903		$	233,038
	Intangible assets – favorable leases			24,885			25,147
	Intangible asset – licenses			9,697			9,697
	Intangible asset – others			8,934			8,859
				278,419			276,741
	Less accumulated amortization			(108,289	)		(92,559	)
			$	170,130		$	184,182
Estimated Future Amortization Expense Related to Intangibles	'
	The Company’s estimated future amortization expense related to these intangibles is as follows (in thousands):
	Year ending:
	2014 (6 months remaining)		$	14,828
	2015			29,312
	2016			28,831
	2017			27,255
	2018			24,120
	Thereafter			45,784
			$	170,130
Other Assets	'
	Other assets consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	Deferred tax assets, net		$	299,739		$	229,975
	Prepaid expenses, non-current			49,799			61,039
	Debt issuance costs, net			35,982			41,847
	Deposits			32,445			25,543
	Restricted cash, non-current			15,644			16,178
	Derivative instruments			3,224			4,118
	Other assets, non-current			6,899			8,624
			$	443,732		$	387,324
Accounts Payable and Accrued Expenses	'
	Accounts payable and accrued expenses consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	Accounts payable		$	21,019		$	30,291
	Accrued compensation and benefits			86,887			92,106
	Accrued interest			46,696			48,310
	Accrued taxes			39,607			32,047
	Accrued utilities and security			34,010			31,314
	Accrued professional fees			8,484			9,753
	Accrued repairs and maintenance			5,039			3,557
	Accrued other			18,379			15,845
			$	260,121		$	263,223
Other Current Liabilities	'
	Other current liabilities consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	Deferred tax liabilities, net		$	72,004		$	72,004
	Deferred installation revenue			41,644			43,145
	Customer deposits			15,485			15,174
	Derivative instruments			5,563			6,515
	Deferred recurring revenue			6,033			5,007
	Deferred rent			2,746			3,865
	Asset retirement obligations			1,226			1,290
	Other current liabilities			1,850			958
			$	146,551		$	147,958
Other Liabilities	'
	Other liabilities consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	Asset retirement obligations, non-current		$	60,962		$	58,258
	Deferred tax liabilities, net			70,111			69,812
	Deferred installation revenue, non-current			74,966			60,947
	Deferred rent, non-current			44,576			37,955
	Accrued taxes, non-current			25,980			27,052
	Customer deposits, non-current			4,998			5,005
	Deferred recurring revenue, non-current			1,948			2,082
	Other liabilities			19,212			13,844
			$	302,753		$	274,955

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Summary of Cash Flow Hedge Instruments	'
	As of June 30, 2014, the Company had a total of 101 cash flow hedge instruments with maturity dates ranging from July 2014 to January 2015 as follows (in thousands):
			Notional		Fair Value (1)			Accumulated
			Amount					other
								comprehensive
								income (loss) (2)
	Derivative assets		$	111,896	$	2,006		$	2,001
	Derivative liabilities			155,716		(3,555	)		(3,497	)
			$	267,612	$	(1,549	)	$	(1,496	)
	-1	A total of $2,006 of derivative assets related to cash flow hedges are included in the condensed consolidated balance sheets within other current assets. A total of $3,555 of derivative liabilities related to cash flow hedges are included in the condensed consolidated balance sheets within other current liabilities.
	-2	Included in the condensed consolidated balance sheets within accumulated other comprehensive income (loss).
	As of December 31, 2013, the Company had a total of 69 cash flow hedge instruments with maturity dates ranging from January 2014 to January 2015 as follows (in thousands):
			Notional		Fair Value (1)			Accumulated
			Amount					other
								comprehensive
								income (loss) (2)
	Derivative assets		$	127,968	$	2,102		$	2,107
	Derivative liabilities			200,686		(3,855	)		(3,857	)
			$	328,654	$	(1,753	)	$	(1,750	)
	-1	A total of $2,099 and $3 of derivative assets related to cash flow hedges are included in the condensed consolidated balance sheets within other current assets and other assets, respectively. A total of $3,818 and $37 of derivative liabilities related to cash flow hedges are included in the condensed consolidated balance sheets within other current liabilities and other liabilities, respectively.
	-2	Included in the condensed 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 condensed consolidated balance sheets as of June 30, 2014 (in thousands):
			Gross		Gross			Net			Gross			Net
			Amounts		amounts			amounts (1)			amounts not
					offset in the						offset in the
					balance						balance
					sheet						sheet (2)
	Assets:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	2,006	$	—		$	2,006		$	(2,002	)	$	4
	Not designated as hedging instruments:
	Embedded derivatives			4,324		—			4,324			—			4,324
	Economic hedges of embedded derivatives			492		—			492			—			492
	Foreign currency forward and option contracts			4,664		—			4,664			(943	)		3,721
				9,480		—			9,480			(943	)		8,537
	Additional netting benefit			—		—			—			(787	)		(787	)
			$	11,486	$	—		$	11,486		$	(3,732	)	$	7,754
	Liabilities:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	3,555	$	—		$	3,555		$	(2,002	)	$	1,553
	Not designated as hedging instruments:
	Embedded derivatives			379		—			379			—			379
	Economic hedges of embedded derivatives			—		—			—			—			—
	Foreign currency forward and option contracts			1,730		—			1,730			(943	)		787
				2,109		—			2,109			(943	)		1,166
	Additional netting benefit			—		—			—			(787	)		(787	)
			$	5,664	$	—		$	5,664		$	(3,732	)	$	1,932
	-1	As presented in the Company’s condensed 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 condensed consolidated balance sheets as of December 31, 2013 (in thousands):
			Gross		Gross			Net			Gross			Net
			Amounts		amounts			amounts (1)			amounts not
					offset in the						offset in the
					balance						balance
					sheet						sheet (2)
	Assets:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	2,102	$	—		$	2,102		$	(2,102	)	$	—
	Not designated as hedging instruments:
	Embedded derivatives			6,296		—			6,296			—			6,296
	Foreign currency forward and option contracts			177		—			177			(177	)		—
				6,473		—			6,473			(177	)		6,296
			$	8,575	$	—		$	8,575		$	(2,279	)	$	6,296
	Liabilities:
	Designated as hedging instruments:
	Foreign currency forward contracts		$	3,855	$	—		$	3,855		$	(2,102	)	$	1,753
	Not designated as hedging instruments:
	Embedded derivatives			115		—			115			—			115
	Economic hedges of embedded derivatives			1,315		—			1,315			—			1,315
	Foreign currency forward and option contracts			1,289		—			1,289			(177	)		1,112
				2,719		—			2,719			(177	)		2,542
			$	6,574	$	—		$	6,574		$	(2,279	)	$	4,295
	-1	As presented in the Company’s condensed 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)	6 Months Ended
	Jun. 30, 2014
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 June 30, 2014 were as follows (in thousands):
			Fair value		Fair value
			at June 30,		measurement using
			2014		Level 1		Level 2
	Assets:
	Cash		$	361,379	$	361,379	$	—
	Money market and deposit accounts			28,939		28,939		—
	U.S. government securities			238,902		238,902		—
	U.S. government agency securities			45,802		—		45,802
	Corporate bonds			6,650		—		6,650
	Certificates of deposit			1,629		—		1,629
	Asset-backed securities			5,829		—		5,829
	Commercial paper			15,219		—		15,219
	Derivative instruments (1)			11,486		—		11,486
			$	715,835	$	629,220	$	86,615
	Liabilities:
	Derivative instruments (1)		$	5,664	$	—	$	5,664
	-1	Includes embedded derivatives, economic hedges of embedded derivatives and foreign currency forward and options contracts. Amounts are included within other current assets, other assets, other current liabilities and other liabilities in the Company’s accompanying condensed consolidated balance sheet.

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Activity of Related Party Transactions	'
	The Company’s activity of related party transactions was as follows (in thousands):
		Three months ended				Six months ended
		June 30,				June 30,
		2014		2013		2014		2013
	Revenues	$	2,206	$	7,264	$	4,327	$	15,740
	Costs and services		3,278		2,068		3,439		4,533
		As of June 30,
		2014		2013
	Accounts receivable	$	1,698	$	4,142
	Accounts payable		—		514

Leases_Tables

Leases (Tables)	6 Months Ended
	Jun. 30, 2014
Leases [Abstract]	'
Summary of Capital Lease and Other Financing Obligations	'
	The Company’s capital lease and other financing obligations are summarized as follows (in thousands):
		Capital lease			Other			Total
		obligations			financing
					obligations
	2014 (6 months remaining)	$	22,378		$	21,194		$	43,572
	2015		57,380			54,197			111,577
	2016		58,311			58,658			116,969
	2017		59,604			58,717			118,321
	2018		61,387			61,695			123,082
	Thereafter		846,037			575,964			1,422,001
	Total minimum lease payments		1,105,097			830,425			1,935,522
	Plus amount representing residual property value		—			422,518			422,518
	Less estimated building costs		—			(17,514	)		(17,514	)
	Less amount representing interest		(565,328	)		(640,591	)		(1,205,919	)
	Present value of net minimum lease payments		539,769			594,838			1,134,607
	Less current portion		(10,173	)		(8,204	)		(18,377	)
		$	529,596		$	586,634		$	1,116,230

Debt_Facilities_Tables

Debt Facilities (Tables)	6 Months Ended
	Jun. 30, 2014
Convertible Debt	'
	The Company’s convertible debt consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	3.00% Convertible Subordinated Notes		$	178,787		$	395,986
	4.75% Convertible Subordinated Notes			157,889			373,724
				336,676			769,710
	Less amount representing debt discount			(15,762	)		(45,508	)
			$	320,914		$	724,202
Summary of Maturities of Debt Facilities	'
	The following table sets forth maturities of the Company’s debt, including mortgage and loans payable, convertible debt and senior notes, as of June 30, 2014 (in thousands):
	Year ending:
	2014 (6 months remaining)		$	206,154
	2015			58,443
	2016 (1)			220,339
	2017			36,046
	2018			9,639
	Thereafter			2,286,709
			$	2,817,330
	-1	Gross of $15,762 debt discount from the 4.75% Convertible Subordinated Notes.
Fair Value of Debt Facilities	'
	The following table sets forth the estimated fair values of the Company’s mortgage and loans payable, senior notes and convertible debt, including current maturities, as of (in thousands):
			June 30,			December 31,
			2014			2013
	Mortgage and loans payable		$	234,024		$	254,607
	Convertible debt			503,911			1,009,744
	Senior notes			2,373,750			2,302,290
Interest Charges	'
	The following table sets forth total interest costs incurred and total interest costs capitalized for the periods presented (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014		2013
	Interest expense		$	66,874		$	61,001		$	135,694	$	121,332
	Interest capitalized			4,079			2,658			7,485		5,550
	Interest charges incurred		$	70,953		$	63,659		$	143,179	$	126,882
Mortgage and Loans Payable [Member]	'
Summary of Mortgage, Loans Payable and Senior Notes	'
	The Company’s mortgage and loans payable consisted of the following (in thousands):
			June 30,			December 31,
			2014			2013
	U.S. term loan		$	120,000		$	140,000
	ALOG financings			65,972			67,882
	Mortgage payable			42,634			43,497
	Other loans payable			2,048			1,829
				230,654			253,208
	Less current portion			(54,470	)		(53,508	)
			$	176,184		$	199,700
Senior Notes [Member]	'
Summary of Mortgage, Loans Payable and Senior Notes	'
	The Company’s senior notes consisted of the following as of (in thousands):
			June 30,			December 31,
			2014			2013
	5.375% Senior Notes due 2023		$	1,000,000		$	1,000,000
	7.00% Senior Notes due 2021			750,000			750,000
	4.875% Senior Notes due 2020			500,000			500,000
			$	2,250,000		$	2,250,000

Redeemable_NonControlling_Inte1

Redeemable Non-Controlling Interests (Tables)	6 Months Ended
	Jun. 30, 2014
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 interests		(1,299	)
	Other comprehensive income attributable to redeemable non-controlling interests		2,817
	Increase in redemption value of non-controlling interests		100,065
	Impact of foreign currency translation		1,671
	Balance as of June 30, 2014	$	227,156

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Components of Accumulated Other Comprehensive Loss	'
	The components of accumulated other comprehensive loss, net of tax, are as follows (in thousands):
		Balance as of			Net			Balance as of
		December 31,			Change			June 30,
		2013						2014
	Foreign currency translation gain (loss)	$	(132,881	)	$	38,051		$	(94,830	)
	Unrealized gain (loss) on cash flow hedges		(1,750	)		254			(1,496	)
	Unrealized gain (loss) on available for sale securities		(257	)		765			508
	Other comprehensive loss (income) attributable to redeemable non-controlling interests		21,121			(2,817	)		18,304
		$	(113,767	)	$	36,253		$	(77,514	)
Stock-Based Compensation Expense Recognized in Company's Condensed Consolidated Statement of Operations	'
	The following table presents, by operating expense category, the Company’s stock-based compensation expense recognized in the Company’s condensed consolidated statement of operations (in thousands):
		Three months ended						Six months ended
		June 30,						June 30,
		2014			2013			2014			2013
	Cost of revenues	$	2,228		$	1,794		$	4,098		$	3,396
	Sales and marketing		7,943			6,825			14,943			12,546
	General and administrative		23,659			15,575			39,770			32,088
		$	33,830		$	24,194		$	58,811		$	48,030

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Schedule of Adjusted EBITDA	'
	The Company defines adjusted EBITDA as income from operations plus depreciation, amortization, accretion, stock-based compensation expense, restructuring charges, impairment charges and acquisition costs as presented below (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Adjusted EBITDA:
	Americas		$	158,125		$	154,291		$	307,688		$	298,808
	EMEA			65,351			50,689			128,556			99,418
	Asia-Pacific			51,801			43,055			99,421			90,697
	Total adjusted EBITDA			275,277			248,035			535,665			488,923
	Depreciation, amortization and accretion expense			(116,074	)		(110,189	)		(229,684	)		(218,792	)
	Stock-based compensation expense			(33,830	)		(24,194	)		(58,811	)		(48,030	)
	Restructuring charges			—			4,837			—			4,837
	Acquisition costs			(676	)		(2,526	)		(861	)		(6,188	)
	Income from operations		$	124,697		$	115,963		$	246,309		$	220,750
Segment Disclosures	'
	The Company also provides the following additional segment disclosures (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Total revenues:
	Americas		$	342,256		$	313,468		$	672,289		$	619,260
	EMEA			157,162			127,009			308,592			246,978
	Asia-Pacific			105,743			88,394			204,333			178,767
			$	605,161		$	528,871		$	1,185,214		$	1,045,005
	Total depreciation and amortization:
	Americas		$	62,765		$	64,757		$	122,792		$	127,354
	EMEA			27,709			23,254			57,421			46,129
	Asia-Pacific			25,238			21,174			49,492			42,907
			$	115,712		$	109,185		$	229,705		$	216,390
	Capital expenditures:
	Americas		$	87,707		$	58,272	(1)	$	155,222		$	103,113	(1)
	EMEA			27,101			32,293			42,665			48,862
	Asia-Pacific			45,008			35,258			84,627	(2)		49,515
			$	159,816		$	125,823		$	282,514		$	201,490
	-1	Includes the deposit of the purchase price for the New York IBX Data Center Acquisition totaling $2,960.
	-2	Includes the purchase of real estate totaling $16,791.
Long-Lived Assets	'
	The Company’s long-lived assets are located in the following geographic areas as of (in thousands):
			June 30,			December 31,
			2014			2013
	Americas		$	2,779,115		$	2,549,863
	EMEA			1,188,295			1,188,559
	Asia-Pacific			956,752			853,228
			$	4,924,162		$	4,591,650
Revenue Information on Service Basis	'
	Revenue information on a services basis is as follows (in thousands):
			Three months ended						Six months ended
			June 30,						June 30,
			2014			2013			2014			2013
	Colocation		$	452,660		$	398,087		$	887,283		$	792,918
	Interconnection			90,969			78,353			177,995			154,344
	Managed infrastructure			27,856			24,791			53,240			47,911
	Rental			2,673			583			5,343			1,163
	Recurring revenues			574,158			501,814			1,123,861			996,336
	Non-recurring revenues			31,003			27,057			61,353			48,669
			$	605,161		$	528,871		$	1,185,214		$	1,045,005

Basis_of_Presentation_and_Sign2

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Accounting Policies [Abstract]	'	'
Effective income tax rate, continuing operations	18.30%	18.30%
Benefits from employee equity award activity in adjustment to additional paid-in capital	$11,091,000	'

Earnings_Per_Share_Computation

Earnings Per Share - Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income (loss)	$10,079	($25,287)	$51,416	$7,997
Net (income) loss attributable to redeemable non-controlling interests	1,249	-529	1,299	-970
Net income (loss) attributable to Equinix, basic and diluted	$11,328	($25,816)	$52,715	$7,027
Weighted-average shares used to calculate basic EPS	51,332	49,379	50,470	49,205
Effect of dilutive securities:	'	'	'	'
Employee equity awards	320	'	414	771
Weighted-average shares used to calculate diluted EPS	51,652	49,379	50,884	49,976
Basic EPS	$0.22	($0.52)	$1.04	$0.14
Diluted EPS	$0.22	($0.52)	$1.04	$0.14

Earnings_Per_Share_Antidilutiv

Earnings Per Share - Anti-dilutive Potential Shares of Common Stock Excluded from Computation of Earnings Per Share (Detail)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 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, amount	6,294	10,160	7,201	8,167
Shares reserved for 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, amount	3,151	3,604	3,258	3,613
Shares reserved for 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, amount	2,849	4,432	3,636	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, amount	294	2,124	307	122

Earnings_Per_Share_Antidilutiv1

Earnings Per Share - Anti-dilutive Potential Shares of Common Stock Excluded from Computation of Earnings Per Share (Parenthetical) (Detail)	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2007	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2009
	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'	'	'
Convertible debt interest rate	3.00%	3.00%	3.00%	4.75%	4.75%	4.75%

Change_In_Accounting_Estimate_1

Change In Accounting Estimate - Schedule of Change in Revenue Due to Change in Accounting Estimate (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Change in Accounting Estimate [Line Items]	'	'	'	'
Revenues	$605,161	$528,871	$1,185,214	$1,045,005
Income from operations	124,697	115,963	246,309	220,750
Net income	10,079	-25,287	51,416	7,997
Basic	$0.22	($0.52)	$1.04	$0.14
Diluted	$0.22	($0.52)	$1.04	$0.14
Effect of reassessment of revenue related to non-recurring installation fees [Member]	'	'	'	'
Change in Accounting Estimate [Line Items]	'	'	'	'
Revenues	'	'	-1,751	'
Income from operations	'	'	-1,751	'
Net income	'	'	($1,342)	'
Basic	'	'	($0.03)	'
Diluted	'	'	($0.03)	'

Balance_Sheet_Components_Cash_

Balance Sheet Components - Cash, Cash Equivalents and Short-Term and Long-Term Investments (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investment Holdings [Line Items]	'	'	'	'
Cash	$361,379	$186,007	'	'
Money market funds	28,939	74,787	'	'
U.S. government agency securities	18,016	'	'	'
Commercial paper	'	1,100	'	'
Total cash and cash equivalents	408,334	261,894	517,496	252,213
Total marketable securities	296,015	768,198	'	'
Total cash, cash equivalents and short-term and long-term investments	704,349	1,030,092	'	'
U.S. government securities [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	238,902	305,021	'	'
U.S. government agency securities [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	27,786	125,917	'	'
Corporate bonds [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	6,650	190,177	'	'
Certificates of deposit [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	1,629	76,152	'	'
Asset-backed securities [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	5,829	68,938	'	'
Commercial paper [Member]	'	'	'	'
Investment Holdings [Line Items]	'	'	'	'
Total marketable securities	$15,219	$1,993	'	'

Balance_Sheet_Components_Addit

Balance Sheet Components - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract]	'	'	'	'	'
Cash equivalents maturity date	'	'	'90 days or less	'	'90 days or less
Short-term investments maturity date	'	'	'One year or less	'	'One year or less
Long-term investments maturity date	'	'	'Greater than one year and less than three years	'	'Greater than one year and less than three years
Aggregate capital leased assets, gross	$539,421,000	'	$539,421,000	'	$428,974,000
Accumulated depreciation	67,687,000	'	67,687,000	'	56,041,000
Amortization expense	$7,074,000	$6,864,000	$13,979,000	$13,623,000	'
Non-cancelable operating lease agreements expiring year	'	'	'2043	'	'

Balance_Sheet_Components_Summa

Balance Sheet Components - Summary of Cost and Estimated Fair Value of Marketable Securities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Amortized Cost, Due within one year	$207,209	$369,698
Amortized Cost, Due after one year through three years	88,582	398,200
Amortized Cost	295,791	767,898
Fair Value, Due within one year	207,325	369,808
Fair Value, Due after one year through three years	88,690	398,390
Fair Value	$296,015	$768,198

Balance_Sheet_Components_Summa1

Balance Sheet Components - Summary of Fair Value and Gross Unrealized Gains and Losses on Available-for-Sale Securities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$295,791	$767,898
Gross unrealized gains	224	379
Gross unrealized losses	'	-79
Fair Value	296,015	768,198
U.S. government securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	238,701	304,897
Gross unrealized gains	201	131
Gross unrealized losses	'	-7
Fair Value	238,902	305,021
U.S. government agency securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	27,767	125,904
Gross unrealized gains	19	35
Gross unrealized losses	'	-22
Fair Value	27,786	125,917
Corporate bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	6,647	190,068
Gross unrealized gains	3	149
Gross unrealized losses	'	-40
Fair Value	6,650	190,177
Certificates of deposit [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	1,629	76,126
Gross unrealized gains	'	27
Gross unrealized losses	'	-1
Fair Value	1,629	76,152
Asset-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	5,828	68,914
Gross unrealized gains	1	33
Gross unrealized losses	'	-9
Fair Value	5,829	68,938
Commercial paper [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	15,219	1,989
Gross unrealized gains	'	4
Fair Value	$15,219	$1,993

Balance_Sheet_Components_Accou

Balance Sheet Components - Accounts Receivables, Net (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Accounts receivable	$382,610	$323,822
Unearned revenue	-136,894	-132,342
Allowance for doubtful accounts	-7,885	-6,640
Accounts receivable, net	$237,831	$184,840

Balance_Sheet_Components_Other

Balance Sheet Components - Other Current Assets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'	'
Prepaid expenses	$31,322	$26,578
Taxes receivable	46,306	21,584
Deferred tax assets, net	7,442	7,442
Other receivables	2,575	4,181
Derivative instruments	8,262	4,457
Restricted cash, current	3,287	3,210
Other current assets	1,850	4,666
Other current assets, total	$101,044	$72,118

Balance_Sheet_Components_Prope

Balance Sheet Components - Property, Plant and Equipment, Net (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$7,169,408	$6,617,940
Less accumulated depreciation	-2,245,246	-2,026,290
Property, plant and equipment, net	4,924,162	4,591,650
International Business Exchange (IBX) plant and machinery [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	2,759,055	2,640,907
Leasehold improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	1,069,296	1,039,847
Buildings [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	2,033,680	1,862,562
IBX equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	545,549	490,677
Computer equipment and software [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	226,869	193,524
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	122,040	122,035
Furniture and fixtures [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	25,260	24,134
Construction in progress [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property, plant and equipment, gross	$387,659	$244,254

Balance_Sheet_Components_Goodw

Balance Sheet Components - Goodwill and Intangible Assets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	$1,058,363	$1,042,153
Intangible assets, gross	278,419	276,741
Less accumulated amortization	-108,289	-92,559
Intangible assets, net	170,130	184,182
Customer contracts [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Intangible assets, gross	234,903	233,038
Favorable leases [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Intangible assets, gross	24,885	25,147
Licenses [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Intangible assets, gross	9,697	9,697
Others [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Intangible assets, gross	8,934	8,859
Reportable Geographical Components [Member] | Americas [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	476,789	471,845
Reportable Geographical Components [Member] | EMEA [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	446,007	435,041
Reportable Geographical Components [Member] | Asia-Pacific [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	$135,567	$135,267

Balance_Sheet_Components_Estim

Balance Sheet Components - Estimated Future Amortization Expense Related to Intangibles (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
2014 (6 months remaining)	$14,828	'
2015	29,312	'
2016	28,831	'
2017	27,255	'
2018	24,120	'
Thereafter	45,784	'
Intangible assets, net	$170,130	$184,182

Balance_Sheet_Components_Other1

Balance Sheet Components - Other Assets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]	'	'
Deferred tax assets, net	$299,739	$229,975
Prepaid expenses, non-current	49,799	61,039
Debt issuance costs, net	35,982	41,847
Deposits	32,445	25,543
Restricted cash, non-current	15,644	16,178
Derivative instruments	3,224	4,118
Other assets, non-current	6,899	8,624
Other assets	$443,732	$387,324

Balance_Sheet_Components_Accou1

Balance Sheet Components - Accounts Payable and Accrued Expenses (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Payables And Accruals [Abstract]	'	'
Accounts payable	$21,019	$30,291
Accrued compensation and benefits	86,887	92,106
Accrued interest	46,696	48,310
Accrued taxes	39,607	32,047
Accrued utilities and security	34,010	31,314
Accrued professional fees	8,484	9,753
Accrued repairs and maintenance	5,039	3,557
Accrued other	18,379	15,845
Accounts payable and accrued expenses	$260,121	$263,223

Balance_Sheet_Components_Other2

Balance Sheet Components - Other Current Liabilities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Liabilities Disclosure [Abstract]	'	'
Deferred tax liabilities, net	$72,004	$72,004
Deferred installation revenue	41,644	43,145
Customer deposits	15,485	15,174
Derivative instruments	5,563	6,515
Deferred recurring revenue	6,033	5,007
Deferred rent	2,746	3,865
Asset retirement obligations	1,226	1,290
Other current liabilities	1,850	958
Other current liabilities, total	$146,551	$147,958

Balance_Sheet_Components_Other3

Balance Sheet Components - Other Liabilities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Liabilities Disclosure [Abstract]	'	'
Asset retirement obligations, non-current	$60,962	$58,258
Deferred tax liabilities, net	70,111	69,812
Deferred installation revenue, non-current	74,966	60,947
Deferred rent, non-current	44,576	37,955
Accrued taxes, non-current	25,980	27,052
Customer deposits, non-current	4,998	5,005
Deferred recurring revenue, non-current	1,948	2,082
Other liabilities	19,212	13,844
Other liabilities noncurrent	$302,753	$274,955

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities - Additional Information (Detail) (USD $)	6 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
		Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Not designated as hedging instruments [Member]	Cash flow hedge instruments [Member]	Cash flow hedge instruments [Member]
			Embedded derivatives [Member]	Embedded derivatives [Member]	Economic hedges of embedded derivatives [Member]	Economic hedges of embedded derivatives [Member]	Foreign currency forward and option contracts [Member]	Foreign currency forward and option contracts [Member]	Derivative	Derivative
Derivative [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of cash flow hedge instruments	'	'	'	'	'	'	'	'	101	69
Derivative instrument maturity range, minimum	'	'	'	'	'	'	'	'	'2014-07	'2014-01
Derivative instrument maturity range, maximum	'	'	'	'	'	'	'	'	'2015-01	'2015-01
Losses reclassified from accumulated other comprehensive income (loss) to revenue	$2,662,000	'	'	'	'	'	'	'	'	'
Net gain (loss) on embedded derivatives	'	'	2,416,000	4,131,000	-2,091,000	-3,095,000	'	'	'	'
Objectives for using derivative instruments	'	'Embedded Derivatives. The Company is deemed to have foreign currency forward contracts embedded in certain of the Companybs 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 Companybs balance sheet at their fair value. The majority of these embedded derivatives arise as a result of the Companybs foreign subsidiaries pricing their customer contracts in the U.S. dollar. Economic Hedges of Embedded Derivatives. The Company uses foreign currency forward contracts to manage the foreign exchange risk associated with the Companybs customer agreements that are priced in currencies different from the functional or local currencies of the parties involved (beconomic hedges of embedded derivativesb). Foreign Currency Forward and Options Contracts. The Company also uses foreign currency forward and options 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 the foreign currency-denominated assets and liabilities change.	'	'	'	'	'	'	'	'
Net gain (loss) in foreign currency forward and options contracts	'	'	'	'	'	'	($2,017,000)	($2,901,000)	'	'

Derivatives_and_Hedging_Activi3

Derivatives and Hedging Activities - Summary of Cash Flow Hedge Instruments (Detail) (Cash flow hedge instruments [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Notional Amount, Derivative assets	$111,896	$127,968
Notional Amount, Derivative liabilities	155,716	200,686
Notional Amount, Total	267,612	328,654
Fair Value, Derivative assets	2,006	2,102
Fair Value, Derivative liabilities	-3,555	-3,855
Fair Value, Total	-1,549	-1,753
Accumulated other comprehensive income (loss) [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative assets	2,001	2,107
Fair Value, Derivative liabilities	-3,497	-3,857
Fair Value, Total	($1,496)	($1,750)

Derivatives_and_Hedging_Activi4

Derivatives and Hedging Activities - Summary of Cash Flow Hedge Instruments (Parenthetical) (Detail) (Cash flow hedge instruments [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative assets	$2,006	$2,102
Fair Value, Derivative liabilities	3,555	3,855
Other current assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative assets	2,006	2,099
Other assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative assets	'	3
Other current liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative liabilities	3,555	3,818
Other liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair Value, Derivative liabilities	'	$37

Derivatives_and_Hedging_Activi5

Derivatives and Hedging Activities - Schedule of Fair Value of Derivative Instruments Recognized in Consolidated Balance Sheets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	$11,486	$8,575
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	11,486	8,575
Fair value of derivative assets, Gross amounts not offset in the balance sheet	-3,732	-2,279
Fair value of derivative assets, Net	7,754	6,296
Fair value of derivative liabilities, Gross Amounts	5,664	6,574
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	5,664	6,574
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	-3,732	-2,279
Fair value of derivative liabilities, Net	1,932	4,295
Designated as hedging instruments [Member] | Foreign currency forward contracts [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	2,006	2,102
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	2,006	2,102
Fair value of derivative assets, Gross amounts not offset in the balance sheet	-2,002	-2,102
Fair value of derivative assets, Net	4	'
Fair value of derivative liabilities, Gross Amounts	3,555	3,855
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	3,555	3,855
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	-2,002	-2,102
Fair value of derivative liabilities, Net	1,553	1,753
Not designated as hedging instruments [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	9,480	6,473
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	9,480	6,473
Fair value of derivative assets, Gross amounts not offset in the balance sheet	-943	-177
Fair value of derivative assets, Net	8,537	6,296
Fair value of derivative liabilities, Gross Amounts	2,109	2,719
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	2,109	2,719
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	-943	-177
Fair value of derivative liabilities, Net	1,166	2,542
Not designated as hedging instruments [Member] | Embedded derivatives [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	4,324	6,296
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	4,324	6,296
Fair value of derivative assets, Net	4,324	6,296
Fair value of derivative liabilities, Gross Amounts	379	115
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	379	115
Fair value of derivative liabilities, Net	379	115
Not designated as hedging instruments [Member] | Economic hedges of embedded derivatives [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	492	'
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	492	'
Fair value of derivative assets, Net	492	'
Fair value of derivative liabilities, Gross Amounts	'	1,315
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	'	1,315
Fair value of derivative liabilities, Net	'	1,315
Not designated as hedging instruments [Member] | Foreign currency forward and option contracts [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross Amounts	4,664	177
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Net amounts	4,664	177
Fair value of derivative assets, Gross amounts not offset in the balance sheet	-943	-177
Fair value of derivative assets, Net	3,721	'
Fair value of derivative liabilities, Gross Amounts	1,730	1,289
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Net amounts	1,730	1,289
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	-943	-177
Fair value of derivative liabilities, Net	787	1,112
Additional netting benefit [Member]	'	'
Derivative [Line Items]	'	'
Fair value of derivative assets, Gross amounts offset in the balance sheet	'	'
Fair value of derivative assets, Gross amounts not offset in the balance sheet	-787	'
Fair value of derivative assets, Net	-787	'
Fair value of derivative liabilities, Gross amounts offset in the balance sheet	'	'
Fair value of derivative liabilities, Gross amounts not offset in the balance sheet	-787	'
Fair value of derivative liabilities, Net	($787)	'

Fair_Value_Measurements_Financ

Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	$11,486	$8,575
Derivative liabilities	5,664	6,574
Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	11,486	'
Total financial assets	715,835	'
Derivative liabilities	5,664	'
Fair Value, Measurements, Recurring [Member] | Cash [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	361,379	'
Fair Value, Measurements, Recurring [Member] | Money market and deposit accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	28,939	'
Fair Value, Measurements, Recurring [Member] | U.S. government securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	238,902	'
Fair Value, Measurements, Recurring [Member] | U.S. government agency securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	45,802	'
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	6,650	'
Fair Value, Measurements, Recurring [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	1,629	'
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	5,829	'
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	15,219	'
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total financial assets	629,220	'
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Cash [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	361,379	'
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Money market and deposit accounts [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	28,939	'
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	238,902	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	11,486	'
Total financial assets	86,615	'
Derivative liabilities	5,664	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government agency securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash and cash equivalents	45,802	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	6,650	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	1,629	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	5,829	'
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Financial assets	$15,219	'

Related_Party_Transactions_Act

Related Party Transactions - Activity of Related Party Transactions (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Related Party Transactions [Abstract]	'	'	'	'
Revenues	$2,206	$7,264	$4,327	$15,740
Costs and services	3,278	2,068	3,439	4,533
Accounts receivable	1,698	4,142	1,698	4,142
Accounts payable	'	$514	'	$514

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (Related Party Transactions [Member], USD $)	Jun. 30, 2014
Related Party Transactions [Member]	'
Related Party Transaction [Line Items]	'
Other financing obligation liability	$3,881,000

Leases_Additional_Information_

Leases - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended	3 Months Ended
	Mar. 31, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
	Silicon Valley 2 Capital Lease [Member]	New York 1 Capital Lease [Member]	New York 1 Capital Lease [Member]	Dallas IBX Financing [Member]	Dallas IBX Financing [Member]
Operating Leased Assets [Line Items]	'	'	'	'	'
Capital lease asset	$81,542,000	$28,269,000	'	'	'
Capital lease liability	82,000,000	28,490,000	28,490,000	'	'
Expiration date of lease	1-Sep-29	'	1-Dec-29	'	1-Dec-29
Financing obligation liabilities	'	'	'	$28,089,000	$13,908,000

Leases_Summary_of_Capital_Leas

Leases - Summary of Capital Lease and Other Financing Obligations (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule Of Capitalized Lease [Line Items]	'	'
Current portion of capital lease and other financing obligations	($18,377)	($17,214)
Capital lease and other financing obligations, less current portion	1,116,230	914,032
Capital lease obligations [Member]	'	'
Schedule Of Capitalized Lease [Line Items]	'	'
2014 (6 months remaining)	22,378	'
2015	57,380	'
2016	58,311	'
2017	59,604	'
2018	61,387	'
Thereafter	846,037	'
Total minimum lease payments	1,105,097	'
Less amount representing interest	-565,328	'
Present value of net minimum lease payments	539,769	'
Current portion of capital lease and other financing obligations	-10,173	'
Capital lease and other financing obligations, less current portion	529,596	'
Present value of net minimum lease payments	539,769	'
Other financing obligations [Member]	'	'
Schedule Of Capitalized Lease [Line Items]	'	'
2014 (6 months remaining)	21,194	'
2015	54,197	'
2016	58,658	'
2017	58,717	'
2018	61,695	'
Thereafter	575,964	'
Total minimum lease payments	830,425	'
Plus amount representing residual property value	422,518	'
Less estimated building costs	-17,514	'
Less amount representing interest	-640,591	'
Present value of net minimum lease payments	594,838	'
Current portion of capital lease and other financing obligations	-8,204	'
Capital lease and other financing obligations, less current portion	586,634	'
Present value of net minimum lease payments	594,838	'
Capital Lease and Other Financing Obligations Total [Member]	'	'
Schedule Of Capitalized Lease [Line Items]	'	'
2014 (6 months remaining)	43,572	'
2015	111,577	'
2016	116,969	'
2017	118,321	'
2018	123,082	'
Thereafter	1,422,001	'
Total minimum lease payments	1,935,522	'
Plus amount representing residual property value	422,518	'
Less estimated building costs	-17,514	'
Less amount representing interest	-1,205,919	'
Present value of net minimum lease payments	1,134,607	'
Current portion of capital lease and other financing obligations	-18,377	'
Capital lease and other financing obligations, less current portion	1,116,230	'
Present value of net minimum lease payments	$1,134,607	'

Debt_Facilities_Summary_of_Mor

Debt Facilities - Summary of Mortgage, Loans Payable and Senior Notes (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Loans payable	$230,654	$253,208
Less current portion	-54,470	-53,508
Loans payable, less current portion	176,184	199,700
U.S. term loan [Member]	'	'
Debt Instrument [Line Items]	'	'
Loans payable	120,000	140,000
ALOG financings [Member]	'	'
Debt Instrument [Line Items]	'	'
Loans payable	65,972	67,882
Mortgage payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Loans payable	42,634	43,497
Other loans payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Loans payable	$2,048	$1,829

Debt_Facilities_Convertible_De

Debt Facilities - Convertible Debt (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2007	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2009
			3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'
Debt Instrument, face amount	$336,676,000	$769,710,000	$178,787,000	$395,986,000	$395,986,000	$157,889,000	$373,724,000	$373,750,000
Less amount representing debt discount	-15,762,000	-45,508,000	'	'	'	-15,762,000	'	'
Convertible subordinated debt, Total	$320,914,000	$724,202,000	'	'	'	'	'	'

Debt_Facilities_Convertible_De1

Debt Facilities - Convertible Debt (Parenthetical) (Detail)	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2007	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2009
	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'
Convertible debt interest rate	3.00%	3.00%	3.00%	4.75%	4.75%	4.75%

Debt_Facilities_Additional_Inf

Debt Facilities - Additional Information (Detail) (USD $)

1 Months Ended

3 Months Ended

6 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

6 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2009

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2014

Sep. 30, 2007

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2013

Jun. 30, 2014

Sep. 30, 2007

Sep. 30, 2007

Jun. 30, 2014

31-May-14

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2009

Dec. 31, 2013

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2009

Jun. 30, 2009

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2013

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

3.00% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

4.75% Convertible subordinated notes [Member]

3.00% and 4.75% Convertible Subordinated Notes [Member]

3.00% and 4.75% Convertible Subordinated Notes [Member]

8.125% senior notes [Member]

8.125% senior notes [Member]

Minimum [Member]

Maximum [Member]

Initial Conversion Rate [Member]

Condition One [Member]

Condition Two [Member]

Minimum [Member]

Initial Conversion Rate [Member]

D

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible Subordinated Notes aggregate principal amount

'

$336,676,000

'

$336,676,000

'

$769,710,000

$178,787,000

$395,986,000

$178,787,000

$178,787,000

$395,986,000

'

'

'

'

$157,889,000

'

$157,889,000

$157,889,000

$373,750,000

$373,724,000

'

'

'

'

'

'

'

$750,000,000

$750,000,000

Convertible debt interest rate

'

'

'

'

'

'

3.00%

3.00%

3.00%

3.00%

'

3.00%

'

'

'

4.75%

'

4.75%

4.75%

4.75%

'

4.75%

'

'

'

'

'

'

'

'

Debt instrument maturity date

'

'

'

'

'

'

'

'

'

15-Oct-14

'

'

'

'

'

'

'

'

15-Jun-16

'

'

'

'

'

'

'

'

'

'

'

Conversion numerator

'

'

'

'

'

'

'

'

'

'

'

'

4.4616

11.8976

7.436

'

'

'

'

'

'

'

'

'

'

11.8599

'

'

'

'

Conversion denominator

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

'

'

'

'

Conversion price per share

'

'

'

'

'

'

'

'

'

'

'

'

'

$84.05

$134.48

'

'

'

'

'

'

'

$109.62

'

$84.32

'

'

'

'

'

Convertible Subordinated Notes, converted number of common stock

'

'

'

'

'

'

'

4,711,283

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exchange value of Convertible Subordinated Notes of aggregate principal amount

'

'

'

'

'

'

217,199,000

'

'

'

'

'

'

'

'

215,830,000

215,830,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible subordinated notes common stock

'

'

'

'

'

'

1,948,578

'

'

'

'

'

'

'

'

2,411,851

2,411,851

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash payment

'

'

'

27,094,000

32,191,000

'

5,387,000

'

'

'

'

'

'

'

'

51,671,000

51,671,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on debt extinguishment

'

($51,183,000)

($93,602,000)

($51,183,000)

($93,602,000)

'

'

'

$4,210,000

'

'

'

'

'

'

'

'

$46,973,000

'

'

'

'

'

'

'

'

$51,183,000

$51,183,000

$93,602,000

$93,602,000

Subordinated Notes converted into common stock

'

'

'

'

'

'

1,620,518

'

1,620,518

1,620,518

'

'

'

'

'

1,872,587

'

1,872,587

1,872,587

'

'

'

'

'

'

'

'

'

'

'

Company election to satisfy obligation in cash

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trading period, in days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20

'

'

'

'

'

'

'

Consecutive trading days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 days

'10 days

'

'

'

'

'

'

Conversion price per share, percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

130.00%

'

'

'

'

'

'

'

Percentage of trading price of Convertible Subordinated Notes, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

98.00%

'

'

'

'

'

'

Debt conversion, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15-Mar-16

'

'

'

'

'

'

'

'

'

'

'

Capped Call, description

'

'

'

'The Capped Call was amended 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.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt_Facilities_Summary_of_Sen

Debt Facilities - Summary of Senior Notes (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Senior notes	$2,250,000	$2,250,000
5.375% Senior Notes due 2023 [Member]	'	'
Debt Instrument [Line Items]	'	'
Senior notes	1,000,000	1,000,000
7.00% Senior Notes due 2021 [Member]	'	'
Debt Instrument [Line Items]	'	'
Senior notes	750,000	750,000
4.875% Senior Notes due 2020 [Member]	'	'
Debt Instrument [Line Items]	'	'
Senior notes	$500,000	$500,000

Debt_Facilities_Summary_of_Sen1

Debt Facilities - Summary of Senior Notes (Parenthetical) (Detail)	6 Months Ended
	Jun. 30, 2014
5.375% Senior Notes due 2023 [Member]	'
Debt Instrument [Line Items]	'
Senior notes stated percentage	5.38%
Senior notes maturity	'2023
7.00% Senior Notes due 2021 [Member]	'
Debt Instrument [Line Items]	'
Senior notes stated percentage	7.00%
Senior notes maturity	'2021
4.875% Senior Notes due 2020 [Member]	'
Debt Instrument [Line Items]	'
Senior notes stated percentage	4.88%
Senior notes maturity	'2020

Debt_Facilities_Summary_of_Mat

Debt Facilities - Summary of Maturities of Debt Facilities (Detail) (USD $)	Jun. 30, 2014
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'
2014 (6 months remaining)	$206,154
2015	58,443
2016	220,339
2017	36,046
2018	9,639
Thereafter	2,286,709
Total long term debt	$2,817,330

Debt_Facilities_Summary_of_Mat1

Debt Facilities - Summary of Maturities of Debt Facilities (Parenthetical) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Gross amount representing debt discount	$15,762	$45,508
4.75% Convertible subordinated notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Gross amount representing debt discount	$15,762	'

Debt_Facilities_Fair_Value_of_

Debt Facilities - Fair Value of Debt Facilities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Mortgage and loans payable	$234,024	$254,607
Convertible debt	503,911	1,009,744
Senior notes	$2,373,750	$2,302,290

Debt_Facilities_Interest_Charg

Debt Facilities - Interest Charges (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Debt Disclosure [Abstract]	'	'	'	'
Interest expense	$66,874	$61,001	$135,694	$121,332
Interest capitalized	4,079	2,658	7,485	5,550
Interest charges incurred	$70,953	$63,659	$143,179	$126,882

Redeemable_NonControlling_Inte2

Redeemable Non-Controlling Interests - Activities of Company's Redeemable Non-Controlling Interests (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Noncontrolling Interest [Abstract]	'	'	'	'
Balance as of December 31, 2013	'	'	$123,902	'
Net loss attributable to redeemable non-controlling interests	-1,249	529	-1,299	970
Other comprehensive income attributable to redeemable non-controlling interests	750	-5,309	2,817	-4,540
Increase in redemption value of non-controlling interests	'	'	100,065	'
Impact of foreign currency translation	'	'	1,671	'
Balance as of June 30, 2014	$227,156	'	$227,156	'

Redeemable_NonControlling_Inte3

Redeemable Non-Controlling Interests - Additional Information (Detail) (Subsequent Event [Member])	Jul. 31, 2014	Jul. 18, 2014
Subsequent Event [Member]	'	'
Redeemable Noncontrolling Interest [Line Items]	'	'
Percentage of ownership	10.00%	10.00%

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	Jun. 30, 2014
Capital expenditures [Member]	'
Other Commitments [Line Items]	'
Purchase commitments	$267,162,000
Miscellaneous purchase commitments [Member]	'
Other Commitments [Line Items]	'
Purchase commitments	$205,555,000

Stockholders_Equity_Components

Stockholders' Equity - Components of Accumulated Other Comprehensive Loss (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Balance as of December 31, 2013	($113,767)
Net Change	36,253
Balance as of June 30, 2014	-77,514
Foreign currency translation gain (loss) [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Balance as of December 31, 2013	-132,881
Net Change	38,051
Balance as of June 30, 2014	-94,830
Unrealized gain (loss) on cash flow hedges [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Balance as of December 31, 2013	-1,750
Net Change	254
Balance as of June 30, 2014	-1,496
Unrealized gain (loss) on available for sale securities [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Balance as of December 31, 2013	-257
Net Change	765
Balance as of June 30, 2014	508
Other comprehensive loss (income) attributable to redeemable non-controlling interests [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Balance as of December 31, 2013	21,121
Net Change	-2,817
Balance as of June 30, 2014	$18,304

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	1 Months Ended	6 Months Ended							6 Months Ended
	Mar. 31, 2014	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2007	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2009	Jun. 30, 2014
			3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	3.00% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	4.75% Convertible subordinated notes [Member]	2013 Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'	'
Number of common stock shares repurchased during the period	'	'	'	'	'	'	'	'	1,315,353
Average price	'	'	'	'	'	'	'	'	$194.16
Total consideration for common stock repurchase	'	'	'	'	'	'	'	'	$255,383,000
Unused balance under share repurchase program	'	'	'	'	'	'	'	'	195,818,000
Reissued, shares	'	1,704,061	'	'	'	'	'	'	'
Reissued, value	'	$287,108,000	'	'	'	'	'	'	'
Debt instrument, interest rate, percentage	'	'	3.00%	3.00%	3.00%	4.75%	4.75%	4.75%	'
Stock, shares issued	613,560	'	'	'	'	'	'	'	'
Equity awards subject to vesting provisions, weighted-average grant date fair value	$179.18	'	'	'	'	'	'	'	'
Equity awards subject to vesting provisions, weighted-average requisite service period, in years	'3 years 4 months 2 days	'	'	'	'	'	'	'	'

Stockholders_Equity_StockBased

Stockholders' Equity - Stock-Based Compensation Expense Recognized in Company's Condensed Consolidated Statement of Operations (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$33,830	$24,194	$58,811	$48,030
Cost of revenues [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	2,228	1,794	4,098	3,396
Sales and marketing [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	7,943	6,825	14,943	12,546
General and administrative [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$23,659	$15,575	$39,770	$32,088

Segment_Information_Additional

Segment Information - Additional Information (Detail)	6 Months Ended	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013
	Segment	Revenues [Member]	Revenues [Member]	Revenues [Member]	Revenues [Member]	Accounts receivable [Member]	Accounts receivable [Member]
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'
Number of reportable segments	3	'	'	'	'	'	'
Concentration risk, customer, description	'No single customer accounted for 10% or greater of the Company's revenues for the three and six months ended June 30, 2014 and 2013. No single customer accounted for 10% or greater of the Company's gross accounts receivable as of June 30, 2014 and December 31, 2013.	'	'	'	'	'	'
Concentration risk, customer, percentage	'	10.00%	10.00%	10.00%	10.00%	10.00%	10.00%

Segment_Information_Schedule_o

Segment Information - Schedule of Adjusted EBITDA (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Total adjusted EBITDA	$275,277	$248,035	$535,665	$488,923
Depreciation, amortization and accretion expense	-116,074	-110,189	-229,684	-218,792
Stock-based compensation expense	-33,830	-24,194	-58,811	-48,030
Restructuring charges	'	4,837	'	4,837
Acquisition costs	-676	-2,526	-861	-6,188
Income from operations	124,697	115,963	246,309	220,750
Americas [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total adjusted EBITDA	158,125	154,291	307,688	298,808
EMEA [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total adjusted EBITDA	65,351	50,689	128,556	99,418
Asia-Pacific [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total adjusted EBITDA	$51,801	$43,055	$99,421	$90,697

Segment_Information_Segment_Di

Segment Information - Segment Disclosures (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	$605,161	$528,871	$1,185,214	$1,045,005
Total depreciation and amortization	115,712	109,185	229,705	216,390
Capital expenditures	159,816	125,823	282,514	201,490
Americas [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	342,256	313,468	672,289	619,260
Total depreciation and amortization	62,765	64,757	122,792	127,354
Capital expenditures	87,707	58,272	155,222	103,113
EMEA [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	157,162	127,009	308,592	246,978
Total depreciation and amortization	27,709	23,254	57,421	46,129
Capital expenditures	27,101	32,293	42,665	48,862
Asia-Pacific [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total revenues	105,743	88,394	204,333	178,767
Total depreciation and amortization	25,238	21,174	49,492	42,907
Capital expenditures	$45,008	$35,258	$84,627	$49,515

Segment_Information_Segment_Di1

Segment Information - Segment Disclosures (Parenthetical) (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
Segment Reporting Information [Line Items]	'
Purchase of real estate	$16,791
New York IBX Data Center Acquisition [Member]	'
Segment Reporting Information [Line Items]	'
Deposit of purchase price	$2,960

Segment_Information_LongLived_

Segment Information - Long-Lived Assets (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Company's long-lived assets	$4,924,162	$4,591,650
Americas [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Company's long-lived assets	2,779,115	2,549,863
EMEA [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Company's long-lived assets	1,188,295	1,188,559
Asia-Pacific [Member]	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'
Company's long-lived assets	$956,752	$853,228

Segment_Information_Revenue_In

Segment Information - Revenue Information on Service Basis (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	$605,161	$528,871	$1,185,214	$1,045,005
Recurring Revenues [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	574,158	501,814	1,123,861	996,336
Recurring Revenues [Member] | Colocation [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	452,660	398,087	887,283	792,918
Recurring Revenues [Member] | Interconnection [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	90,969	78,353	177,995	154,344
Recurring Revenues [Member] | Managed infrastructure services [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	27,856	24,791	53,240	47,911
Recurring Revenues [Member] | Rental [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	2,673	583	5,343	1,163
Non-recurring Revenues [Member]	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Revenue	$31,003	$27,057	$61,353	$48,669

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	6 Months Ended	1 Months Ended		1 Months Ended
	Jun. 30, 2014	Jul. 31, 2014	Jul. 18, 2014	Jul. 31, 2014
	2013 Share Repurchase Program [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
				2013 Share Repurchase Program [Member]
Subsequent Event [Line Items]	'	'	'	'
Percentage of ownership	'	10.00%	10.00%	'
Cash consideration for acquisition	'	$225,000,000	'	'
Equity interest percentage	'	100.00%	'	'
Number of common stock shares repurchased during the period	1,315,353	'	'	202,390
Average price	$194.16	'	'	$210.36
Total consideration for common stock repurchase	$255,383,000	'	'	$42,576,000