Dupont Fabros Technology Inactive 10-Q27 Jul 172017 Q2 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information Document - shares	6 Months Ended
Document and Entity Information Document - shares	Jun. 30, 2017	Jul. 21, 2017
Entity Information [Line Items]
Entity Registrant Name	DUPONT FABROS TECHNOLOGY, INC.
Entity Central Index Key	1,407,739
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		77,902,189
DuPont Fabros Technology, L.P. [Member]
Entity Information [Line Items]
Entity Registrant Name	DUPONT FABROS TECHNOLOGY, L.P.
Entity Central Index Key	1,418,175
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017		Dec. 31, 2016
Income producing property:
Land	$ 107,539		$ 105,890
Buildings and improvements	3,141,102		3,018,361
Income producing property	3,248,641		3,124,251
Less: accumulated depreciation	(716,719)		(662,183)
Net income producing property	2,531,922		2,462,068
Construction in progress and property held for development	551,258	[1]	330,983
Net real estate	3,083,180		2,793,051
Cash and cash equivalents	31,125		38,624
Rents and other receivables, net	9,422		11,533
Deferred rent, net	120,599		123,058
Deferred costs, net	23,673		25,776
Prepaid expenses and other assets	48,467		46,422
Total assets	3,316,466		3,038,464
Liabilities:
Line of credit	335,997		50,926
Mortgage notes payable, net of deferred financing costs	107,175		110,733
Unsecured term loan, net of deferred financing costs	249,143		249,036
Unsecured notes payable, net of discount and deferred financing costs	838,461		837,323
Accounts payable and accrued liabilities	39,426		36,909
Construction costs payable	74,795		56,428
Accrued interest payable	11,515		11,592
Dividend and distribution payable	46,431		46,352
Prepaid rents and other liabilities	67,629		81,062
Total liabilities	1,770,572		1,480,361
Redeemable noncontrolling interests - operating partnership	714,494		591,101
Redeemable partnership units	714,494		591,101
Commitments and contingencies	0		0
Stockholders’ equity:
Common stock, $.001 par value, 250,000,000 shares authorized, 77,845,588 shares issued and outstanding at June 30, 2017 and 75,914,763 shares issued and outstanding at December 31, 2016	78		76
Additional paid in capital	631,022		766,732
Retained earnings	0		0
Accumulated other comprehensive loss	(950)		(1,056)
Total stockholders’ equity	831,400		967,002
Total liabilities and stockholders’ equity	3,316,466		3,038,464
DuPont Fabros Technology, L.P. [Member]
Income producing property:
Land	107,539		105,890
Buildings and improvements	3,141,102		3,018,361
Income producing property	3,248,641		3,124,251
Less: accumulated depreciation	(716,719)		(662,183)
Net income producing property	2,531,922		2,462,068
Construction in progress and property held for development	551,258		330,983
Net real estate	3,083,180		2,793,051
Cash and cash equivalents	26,910		34,409
Rents and other receivables, net	9,422		11,533
Deferred rent, net	120,599		123,058
Deferred costs, net	23,673		25,776
Prepaid expenses and other assets	48,467		46,422
Total assets	3,312,251		3,034,249
Liabilities:
Line of credit	335,997		50,926
Mortgage notes payable, net of deferred financing costs	107,175		110,733
Unsecured term loan, net of deferred financing costs	249,143		249,036
Unsecured notes payable, net of discount and deferred financing costs	838,461		837,323
Accounts payable and accrued liabilities	39,426		36,909
Construction costs payable	74,795		56,428
Accrued interest payable	11,515		11,592
Dividend and distribution payable	46,431		46,352
Prepaid rents and other liabilities	67,629		81,062
Total liabilities	1,770,572		1,480,361
Redeemable noncontrolling interests - operating partnership	714,494		591,101
Redeemable partnership units	714,494		591,101
Commitments and contingencies	0		0
Stockholders’ equity:
Total liabilities and stockholders’ equity	3,312,251		3,034,249
Limited partners’ capital:
General partner’s capital, common units, 662,373 issued and outstanding at June 30, 2017 and December 31, 2016	5,326		6,645
Total partners’ capital	827,185		962,787
Series C cumulative redeemable perpetual preferred units [Member] \| DuPont Fabros Technology, L.P. [Member]
Limited partners’ capital:
Limited partners' capital	201,250		201,250
Limited partners' common units [Member] \| DuPont Fabros Technology, L.P. [Member]
Limited partners’ capital:
Limited partners' capital	620,609		754,892
Series C cumulative redeemable perpetual preferred stock [Member]
Stockholders’ equity:
Preferred stock, $.001 par value, 50,000,000 shares authorized	201,250		201,250
Series C cumulative redeemable perpetual preferred stock [Member] \| DuPont Fabros Technology, L.P. [Member]
Limited partners’ capital:
Limited partners' capital	$ 201,250		$ 201,250

[1]	(1)Properties located in Ashburn, VA (ACC8, ACC9 Phase II, ACC10, and ACC11), Elk Grove Village, IL (CH3), Santa Clara, CA (SC1 Phase III), Hillsboro, OR (OR1 and OR2), Vaughan, ON (TOR1) and Mesa, AZ (PHX1 and PHX2).

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	77,845,588	75,914,763
Common stock, shares outstanding	77,845,588	75,914,763
General partners' capital account, units issued	662,373	662,373
General partners' capital, units outstanding	662,373	662,373
Series C cumulative redeemable perpetual preferred units [Member]
Limited partners' capital, common units issued	8,050,000	8,050,000
Limited partners' capital, common units outstanding	8,050,000	8,050,000
Limited partners' common units [Member]
Limited partners' capital, common units issued	77,183,215	75,252,390
Limited partners' capital, common units outstanding	77,183,215	75,252,390
Series C cumulative redeemable perpetual preferred stock [Member]
Preferred stock, shares issued	8,050,000	8,050,000
Preferred stock, shares outstanding	8,050,000	8,050,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Base rent	$ 92,931	$ 83,362	$ 184,199	$ 165,895
Recoveries from tenants	46,073	41,695	91,368	80,389
Other revenues	1,706	3,481	4,627	6,403
Total revenues	140,710	128,538	280,194	252,687
Expenses:
Property operating costs	41,472	37,933	81,663	73,888
Real estate taxes and insurance	5,029	5,840	10,039	11,156
Depreciation and amortization	28,948	26,323	57,155	52,166
General and administrative	6,276	5,274	13,088	10,849
Business Combination, Acquisition Related Costs	7,128	0	7,128	0
Other expenses	1,307	3,193	4,012	5,542
Total expenses	90,160	78,563	173,085	153,601
Operating income	50,550	49,975	107,109	99,086
Interest:
Expense incurred	(11,793)	(11,563)	(23,252)	(23,132)
Amortization of deferred financing costs	(794)	(919)	(1,619)	(1,764)
Gain on sale of real estate	0	23,064	0	23,064
Net income	37,963	60,557	82,238	97,254
Net income attributable to redeemable noncontrolling interests – operating partnership	(4,506)	(7,467)	(10,218)	(12,945)
Net income attributable to controlling interests	33,457	53,090	72,020	84,309
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Net income attributable to common shares	30,124	37,299	65,354	61,707
Net income attributable to common units	$ 34,630	$ 44,766	$ 75,572	$ 74,652
Earnings per share – basic:
Net income attributable to common shares	$ 0.39	$ 0.50	$ 0.84	$ 0.87
Weighted average common shares outstanding	77,486,297	74,370,577	77,080,615	70,661,406
Earnings per share – diluted:
Net income attributable to common shares	$ 0.38	$ 0.49	$ 0.83	$ 0.86
Weighted average common shares outstanding	78,487,973	75,231,634	78,071,944	71,518,495
Dividends declared per common share	$ 0.50	$ 0.47	$ 1	$ 0.94
Earnings per unit – basic:
Net income attributable to common units	0.39	0.50	0.84	0.87
Earnings per unit – diluted:
Net income attributable to common units	$ 0.38	$ 0.49	$ 0.83	$ 0.86
DuPont Fabros Technology, L.P. [Member]
Revenues:
Base rent	$ 92,931	$ 83,362	$ 184,199	$ 165,895
Recoveries from tenants	46,073	41,695	91,368	80,389
Other revenues	1,706	3,481	4,627	6,403
Total revenues	140,710	128,538	280,194	252,687
Expenses:
Property operating costs	41,472	37,933	81,663	73,888
Real estate taxes and insurance	5,029	5,840	10,039	11,156
Depreciation and amortization	28,948	26,323	57,155	52,166
General and administrative	6,276	5,274	13,088	10,849
Business Combination, Acquisition Related Costs	7,128	0	7,128	0
Other expenses	1,307	3,193	4,012	5,542
Total expenses	90,160	78,563	173,085	153,601
Operating income	50,550	49,975	107,109	99,086
Interest:
Expense incurred	(11,793)	(11,563)	(23,252)	(23,132)
Amortization of deferred financing costs	(794)	(919)	(1,619)	(1,764)
Gain on sale of real estate	0	23,064	0	23,064
Net income	37,963	60,557	82,238	97,254
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Net income attributable to common units	$ 34,630	$ 44,766	$ 75,572	$ 74,652
Earnings per unit – basic:
Net income attributable to common units	$ 0.39	$ 0.50	$ 0.84	$ 0.87
Weighted average common units outstanding	89,168,665	88,977,907	89,132,366	85,483,976
Earnings per unit – diluted:
Net income attributable to common units	$ 0.38	$ 0.49	$ 0.83	$ 0.86
Weighted average limited partnership units outstanding, diluted	90,170,341	89,838,964	90,123,695	86,341,065
Distributions declared per unit	$ 0.50	$ 0.47	$ 1	$ 0.94

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income	$ 37,963	$ 60,557	$ 82,238	$ 97,254
Other comprehensive income
Foreign currency translation adjustments	105	0	123	0
Comprehensive income	38,068	60,557	82,361	97,254
Net income attributable to redeemable noncontrolling interests – operating partnership	(4,506)	(7,467)	(10,218)	(12,945)
Other comprehensive income attributable to redeemable noncontrolling interests - operating partnership	15	0	(17)	0
Comprehensive income attributable to controlling interests	33,547	53,090	72,126	84,309
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Comprehensive income attributable to common shares	30,214	37,299	65,460	61,707
DuPont Fabros Technology, L.P. [Member]
Net income	37,963	60,557	82,238	97,254
Other comprehensive income
Foreign currency translation adjustments	105	0	123	0
Comprehensive income	38,068	60,557	82,361	97,254
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Comprehensive income attributable to common shares	$ 34,735	$ 44,766	$ 75,695	$ 74,652

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Total	Preferred Stock/Units [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Dec. 31, 2016	$ 967,002	$ 201,250	$ 76	$ 766,732	$ 0	$ (1,056)
Balance, shares at Dec. 31, 2016	75,914,763
Net income attributable to controlling interests	$ 72,020				72,020
Other comprehensive loss attributable to controlling interests - foreign currency translation adjustments	106					106
Dividends declared on common stock	(77,841)			(12,487)	(65,354)
Dividends earned on preferred stock	$ (6,666)				(6,666)
Redemption of operating partnership units, shares	1,773,147
Redemption of operating partnership units	$ 77,894		2	77,892
Issuance of stock awards, shares	246,949
Issuance of stock awards	$ 810		0	810
Retirement and forfeiture of stock awards, shares	(89,271)
Retirement and forfeiture of stock awards	$ (4,041)		0	(4,041)
Amortization of deferred compensation costs	4,850			4,850
Adjustments to redeemable noncontrolling interests – operating partnership	(202,734)			(202,734)
Balance at Jun. 30, 2017	$ 831,400	$ 201,250	$ 78	$ 631,022	$ 0	$ (950)
Balance, shares at Jun. 30, 2017	77,845,588

Consolidated Statement of Partn

Consolidated Statement of Partners' Capital - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Total	DuPont Fabros Technology, L.P. [Member]	DuPont Fabros Technology, L.P. [Member]Limited Partners' Capital - Preferred [Member]	DuPont Fabros Technology, L.P. [Member]Limited Partners' Capital - Common [Member]	DuPont Fabros Technology, L.P. [Member]General Partner's Capital [Member]	Common Stock [Member]
Balance at Dec. 31, 2016		$ 962,787	$ 201,250	$ 754,892	$ 6,645
Balance, units at Dec. 31, 2016				75,252,390	662,373
Net income	$ 82,238	82,238		$ 81,538	$ 700
Other comprehensive loss - foreign currency translation adjustments	$ 123	123		122	1
Common unit distributions		(89,523)		(88,861)	(662)
Preferred unit distributions		$ (6,666)		$ (6,609)	(57)
Redemption of operating partnership units, shares	1,773,147	1,773,147		1,773,147
Redemption of operating partnership units	$ 77,894	$ 77,894		$ 77,894		$ 2
Issuance of OP units for stock awards, units				246,949
Issuance of OP units for stock awards		810		$ 810
Retirement and forfeiture of OP units, units				(89,271)
Retirement and forfeiture of OP units		(4,041)		$ (4,041)
Amortization of deferred compensation costs	$ 4,850	4,850		4,850
Adjustments to redeemable partnership units		(201,287)		(199,986)	(1,301)
Balance at Jun. 30, 2017		$ 827,185	$ 201,250	$ 620,609	$ 5,326
Balance, units at Jun. 30, 2017				77,183,215	662,373

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flow from operating activities
Net income	$ 82,238	$ 97,254
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	57,155	52,166
Gain on sale of real estate	0	(23,064)
Straight line rent, net of reserves	2,459	(1,041)
Amortization of deferred financing costs	1,619	1,764
Amortization and write-off of lease contracts above and below market value	(365)	(222)
Compensation paid with Company common shares	4,734	3,290
Changes in operating assets and liabilities
Rents and other receivables	2,111	192
Deferred costs	(891)	(3,465)
Prepaid expenses and other assets	(1,328)	1,750
Accounts payable and accrued liabilities	2,130	27
Accrued interest payable	(82)	189
Prepaid rents and other liabilities	(12,437)	(4,399)
Net cash provided by operating activities	137,343	124,441
Cash flow from investing activities
Proceeds from Sale of Property, Plant, and Equipment	0	123,545
Investments in real estate – development	(301,504)	(101,867)
Payments to Acquire Real Estate	(12,250)	0
Land acquisition costs - related party	0	(20,168)
Interest capitalized for real estate under development	(8,895)	(6,118)
Improvements to real estate	(418)	(3,098)
Additions to non-real estate property	(196)	(426)
Net cash used in investing activities	(323,263)	(8,132)
Line of credit:
Proceeds	282,432	60,000
Repayments of Lines of Credit	0	(60,000)
Mortgage notes payable:
Repayments of Secured Debt	(3,750)	(1,250)
Payments of financing Costs	(110)	(96)
Issuance of common stock, net of offering costs	0	275,720
Proceeds from Issuance of Redeemable Preferred Stock	0	194,502
Payments for Repurchase of Redeemable Preferred Stock	0	(251,250)
Equity compensation (payments) proceeds	(4,041)	8,285
Dividends and distributions:
Common shares	(76,857)	(66,048)
Preferred shares	(6,666)	(16,288)
Redeemable noncontrolling interests – operating partnership	(12,587)	(14,078)
Net cash provided by financing activities	178,421	129,497
Net increase (decrease) in cash and cash equivalents	(7,499)	245,806
Cash and cash equivalents, beginning	38,624	31,230
Cash and cash equivalents, ending	31,125	277,036
Supplemental information:
Cash paid for interest, net of amounts capitalized	23,331	23,101
Deferred financing costs capitalized for real estate under development	635	364
Construction costs payable capitalized for real estate under development	74,795	26,914
Redemption of operating partnership units	77,894	49,468
Adjustments to redeemable noncontrolling interests – operating partnership	202,734	227,425
DuPont Fabros Technology, L.P. [Member]
Cash flow from operating activities
Net income	82,238	97,254
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	57,155	52,166
Gain on sale of real estate	0	(23,064)
Straight line rent, net of reserves	2,459	(1,041)
Amortization of deferred financing costs	1,619	1,764
Amortization and write-off of lease contracts above and below market value	(365)	(222)
Compensation paid with Company common shares	4,734	3,290
Changes in operating assets and liabilities
Rents and other receivables	2,111	192
Deferred costs	(891)	(3,465)
Prepaid expenses and other assets	(1,328)	1,750
Accounts payable and accrued liabilities	2,130	27
Accrued interest payable	(82)	189
Prepaid rents and other liabilities	(12,437)	(4,399)
Net cash provided by operating activities	137,343	124,441
Cash flow from investing activities
Proceeds from Sale of Property, Plant, and Equipment	0	123,545
Investments in real estate – development	(301,504)	(101,867)
Payments to Acquire Real Estate	(12,250)	0
Land acquisition costs - related party	0	(20,168)
Interest capitalized for real estate under development	8,895	6,118
Improvements to real estate	(418)	(3,098)
Additions to non-real estate property	(196)	(426)
Net cash used in investing activities	(323,263)	(8,132)
Line of credit:
Proceeds	282,432	60,000
Repayments of Lines of Credit	0	(60,000)
Mortgage notes payable:
Repayments of Secured Debt	(3,750)	(1,250)
Payments of financing Costs	(110)	(96)
Issuance of common stock, net of offering costs	0	275,720
Proceeds from Issuance of Redeemable Preferred Stock	0	194,502
Payments for Repurchase of Redeemable Preferred Stock	0	(251,250)
Equity compensation (payments) proceeds	(4,041)	8,285
Distributions	(96,110)	(96,414)
Dividends and distributions:
Net cash provided by financing activities	178,421	129,497
Net increase (decrease) in cash and cash equivalents	(7,499)	245,806
Cash and cash equivalents, beginning	34,409	27,015
Cash and cash equivalents, ending	26,910	272,821
Supplemental information:
Cash paid for interest, net of amounts capitalized	23,331	23,101
Deferred financing costs capitalized for real estate under development	635	364
Construction costs payable capitalized for real estate under development	74,795	26,914
Redemption of operating partnership units	77,894	49,468
Adjustments to redeemable noncontrolling interests – operating partnership	$ 201,287	$ 226,885

1. Description of Business

1. Description of Business	6 Months Ended
1. Description of Business	Jun. 30, 2017
Description of Business [Abstract]
Nature of Operations [Text Block]	Description of Business and Merger Agreement DuPont Fabros Technology, Inc., or DFT, through its controlling interest in DuPont Fabros Technology, L.P. (the “Operating Partnership” or “OP” and collectively with DFT and their operating subsidiaries, the “Company”), is a fully integrated, self-administered and self-managed company that owns, acquires, develops and operates wholesale data centers. DFT is a real estate investment trust, or REIT, for federal income tax purposes and is the sole general partner of the Operating Partnership, and as of June 30, 2017 , owned 87.0% of the common economic interest in the Operating Partnership, of which 0.9% is held as general partnership units. Unless otherwise indicated or unless the context requires otherwise, all references in this report to “we,” “us,” “our,” “our Company” or “the Company” refer to DFT and the Operating Partnership, collectively. As of June 30, 2017 , we held a fee simple interest in the following properties: • 12 operating data centers – ACC2, ACC3, ACC4, ACC5, ACC6, ACC7, ACC9 Phase I, CH1, CH2, SC1 Phases I-II, VA3, and VA4; • Six data center projects under development – ACC9 Phase II, ACC10 Phase I, CH3 Phases I and II, SC1 Phase III and TOR1 Phase IA; • Three data center projects available for future development – ACC10 Phase II, TOR1 Phase IB/C and TOR1 Phase II; and • Land that may be used to develop six additional data centers – ACC8, ACC11, OR1, OR2, PHX1 and PHX2. On June 9, 2017, we and Digital Realty Trust, Inc. (“DLR”) announced that DFT, the OP, DLR, Digital Realty Trust, L.P., DLR’s operating partnership ("DLR OP"), and three other DLR subsidiaries entered into an Agreement and Plan of Merger (the “Merger Agreement”). Under the Merger Agreement: • DFT will be merged with and into a DLR merger subsidiary and become a wholly-owned subsidiary of DLR (the "Company Merger"); and • another DLR merger subsidiary will be merged with and into the OP, and the OP will become a subsidiary of DLR (the "Partnership Merger" and, together with the Company Merger, the "Mergers"). Pursuant to the terms and conditions in the Merger Agreement, at the effective time of the Mergers: • each share of DFT's common stock will be converted into the right to receive 0.545 shares of DLR common stock; • each common unit of partnership interests in the OP will be converted into the right to receive 0.545 common units in the DLR OP, or, in the alternative, each unit holder may elect to redeem his or her units and receive 0.545 shares of DLR common stock for each unit; and • each share of DFT's 6.625% Series C Cumulative Redeemable Perpetual Preferred Stock ("Series C Preferred Stock") will be converted into the right to receive one share of a newly designated class of preferred stock of DLR, which will have substantially similar rights, privileges, preferences and interests as DFT's Series C Preferred Stock. The consummation of the Mergers is subject to certain customary closing conditions, including, among others, approval of the Company Merger by the holders of a majority of the outstanding shares of our common stock, approval of the issuance of DLR common stock in connection with the Company Merger by a majority of the votes cast by the holders of DLR common stock, the absence of certain legal impediments to the consummation of the Mergers, the effectiveness of a registration statement on Form S-4 to be filed by DLR in connection with the Mergers, approval for listing on the New York Stock Exchange of the shares of DLR common stock to be issued in connection with the Company Merger, the absence of a material adverse effect on either DLR or us and compliance by the DLR parties and us with each party’s respective obligations under the Merger Agreement. The obligations of the parties to consummate the Mergers are not subject to any financing condition or the receipt of any financing by the DLR parties. There can be no assurance that the proposed transaction will be consummated. Generally, all fees and expenses incurred in connection with the Mergers and the other transactions contemplated by the Merger Agreement will be paid by the party incurring those fees and expenses. Additionally, upon termination of the Merger Agreement in certain circumstances, the Merger Agreement provides for the payment of a termination fee to DLR by DFT of $150.0 million . The Merger Agreement also provides for the payment of a termination fee to DFT by DLR of $300.0 million upon termination of the Merger Agreement in certain circumstances.

2. Significant Accounting Polic

2. Significant Accounting Policies	6 Months Ended
2. Significant Accounting Policies	Jun. 30, 2017
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Significant Accounting Policies Basis of Presentation This report combines the quarterly reports on Form 10-Q for the quarter ended June 30, 2017 of DuPont Fabros Technology, Inc. and DuPont Fabros Technology, L.P. References to “DFT” mean DuPont Fabros Technology, Inc. and its controlled subsidiaries; and references to the “Operating Partnership” or “OP” mean DuPont Fabros Technology, L.P. and its controlled subsidiaries. We believe combining the quarterly reports on Form 10-Q of DFT and the Operating Partnership into this single report provides the following benefits: • enhances investors’ understanding of DFT and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business; • eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure in this report applies to both DFT and the Operating Partnership; and • creates time and cost efficiencies through the preparation of one combined report instead of two separate reports. We operate DFT and the Operating Partnership as one business. The management of DFT consists of the same employees as the management of the Operating Partnership. We believe it is important for investors to understand the few differences between DFT and the Operating Partnership in the context of how DFT and the Operating Partnership operate as a consolidated company. DFT is a REIT, whose only material asset is its ownership of OP units of the Operating Partnership. As a result, DFT does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing unsecured debt of the Operating Partnership. DFT has not issued any indebtedness, but has guaranteed all of the unsecured debt of the Operating Partnership. The Operating Partnership, through its wholly-owned subsidiaries, holds all the real estate assets of the Company. Except for net proceeds from public equity issuances by DFT, which are contributed to the Operating Partnership in exchange for OP units or preferred units, the Operating Partnership generates all remaining capital required by our business. These sources include the Operating Partnership’s operations, its direct or indirect incurrence of indebtedness, and the issuance of partnership units. As sole general partner with control of the Operating Partnership, DFT consolidates the Operating Partnership for financial reporting purposes. The presentation of stockholders’ equity and partners’ capital are the main areas of difference between the consolidated financial statements of DFT and those of the Operating Partnership. The Operating Partnership’s capital includes preferred units and general and limited common units that are owned by DFT and the other partners. DFT’s stockholders’ equity includes preferred stock, common stock, additional paid in capital, retained earnings and accumulated other comprehensive income (loss). The common limited partnership interests held by the limited partners (other than DFT) in the Operating Partnership are presented as “redeemable partnership units” in the Operating Partnership’s consolidated financial statements and as “redeemable noncontrolling interests-operating partnership” in DFT’s consolidated financial statements. The only difference between the assets and liabilities of DFT and the Operating Partnership as of June 30, 2017 was a $4.2 million bank account held by DFT that is not part of the Operating Partnership. Net income is the same for DFT and the Operating Partnership. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. All significant intercompany accounts and transactions have been eliminated in the accompanying consolidated financial statements. The results of operations for the six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the full year. These consolidated financial statements should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations contained elsewhere in this Form 10-Q and the audited financial statements and accompanying notes for the year ended December 31, 2016 contained in our Annual Report on Form 10-K, which contains a complete listing of our significant accounting policies. We have one reportable segment consisting of investments in data centers located in the United States and Canada. All of our properties generate similar types of revenues and expenses related to customer rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a range of customers, the types of services provided to them are limited to a few core principles. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio. Use of Estimates The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Property Depreciation on buildings is generally provided on a straight-line basis over 40 years from the date the buildings were placed in service. Building components are depreciated over the life of the respective improvement ranging from 10 to 40 years from the date the components were placed in service. Personal property is depreciated over three to seven years . Depreciation expense was $27.9 million and $25.3 million for the three months ended June 30, 2017 and 2016 , respectively, and $55.0 million and $50.0 million for the six months ended June 30, 2017 and 2016 , respectively. Repairs and maintenance costs are expensed as incurred. We review each of our properties for indicators of impairment. Examples of such indicators may include a significant decrease in the market price of the property, a significant adverse change in the extent or manner in which the property is being used in its physical condition, a significant adverse change in legal factors or in the business climate that could affect the value of a property, including an adverse action or assessment by a regulator, an accumulation of costs significantly in excess of the amount originally expected for the development of a property, a history of operating or cash flow losses of the property or a current expectation that, more likely than not, a property will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. When such impairment indicators exist, we review an estimate of the future undiscounted net cash flows expected to result from the real estate investment’s use and eventual disposition and compare that estimate to the carrying value of the property. We assess the recoverability of the carrying value of our assets on a property-by-property basis. We consider factors such as future operating income, trends and prospects, as well as the effects of leasing demand, competition, potential sales proceeds and other factors. If our undiscounted cash flow evaluation indicates that we are unable to recover the carrying value of a real estate investment, an impairment loss is recorded to the extent that the carrying value exceeds the estimated fair value of the property. No impairment losses were recorded during the six months ended June 30, 2017 and 2016 . We classify a data center property as held-for-sale when it meets the necessary criteria, which include when we commit to and actively embark on a plan to sell the asset, the sale is expected to be completed within one year under terms usual and customary for such sales, and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. Data center properties held-for-sale are carried at the lower of cost or fair value less costs to sell. As of June 30, 2017 and December 31, 2016 , we did not have any properties classified as held-for-sale. Deferred Costs Deferred costs, net in our accompanying consolidated balance sheets include both financing and leasing costs. Financing costs, which represent fees and other costs incurred in obtaining debt, are amortized using the effective-interest rate method, or a method that approximates the effective-interest method, over the term of the loan and are included in amortization of deferred financing costs. Balances of financing costs for our unsecured revolving credit facility, or Unsecured Credit Facility, net of accumulated amortization, which are presented within deferred costs, net in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented within deferred costs, net June 30, December 31, Financing costs $ 12,353 $ 12,352 Accumulated amortization (7,224 ) (6,376 ) Financing costs, net $ 5,129 $ 5,976 Balances of financing costs for our other recognized debt liabilities, net of accumulated amortization, which are presented as a reduction of each of the respective recognized debt liabilities in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented as a reduction of debt liability balances June 30, December 31, Financing costs $ 20,470 $ 20,423 Accumulated amortization (9,309 ) (7,935 ) Financing costs, net $ 11,161 $ 12,488 Leasing costs, which consist of external fees and costs incurred in the successful negotiation of leases, internal costs expended in the successful negotiation of leases and the estimated leasing commissions resulting from the allocation of the purchase price of ACC2, VA3, VA4 and ACC4, are deferred and amortized over the terms of the applicable leases on a straight-line basis. If an applicable lease terminates prior to the expiration of its initial term, the carrying amount of the leasing costs are written off to amortization expense. Leasing costs incurred for the three and six months ended June 30, 2017 and 2016 were as follows (in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Leasing costs incurred for new leases $ 614 $ 1,670 $ 890 $ 3,270 Leasing costs incurred for renewals — 184 — 195 Total leasing costs incurred $ 614 $ 1,854 $ 890 $ 3,465 Amortization of deferred leasing costs totaled $1.0 million and $1.1 million for the three months ended June 30, 2017 and 2016 , respectively, and $2.1 million for both the six months ended June 30, 2017 and 2016 , respectively. Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Leasing costs $ 54,446 $ 53,556 Accumulated amortization (35,904 ) (33,756 ) Leasing costs, net $ 18,542 $ 19,800 Inventory We maintain fuel inventory for our generators, which is recorded at the lower of cost (on a first-in, first-out basis) or market. As of June 30, 2017 and December 31, 2016 , the fuel inventory was $4.3 million and $4.2 million , respectively, and is included in prepaid expenses and other assets in the accompanying consolidated balance sheets. Rental Income We, as a lessor, have retained substantially all the risks and benefits of ownership and account for our leases as operating leases. For lease agreements that provide for scheduled fixed and determinable rent increases, rental income is recognized on a straight-line basis over the non-cancellable term of the lease, which commences when control of the space and critical power have been provided to the customer. If the lease contains an early termination clause with a penalty payment, we determine the lease termination date by evaluating whether the penalty reasonably assures that the lease will not be terminated early. Straight-line rents receivable are included in deferred rent, net in the accompanying consolidated balance sheets. Lease inducements, which include cash payments to customers, are amortized as a reduction of rental income over the non-cancellable lease term. Lease inducements are included in prepaid expenses and other assets in the accompanying consolidated balance sheets. Lease intangible assets and liabilities that have resulted from above-market and below-market leases that were acquired are amortized on a straight-line basis as decreases and increases, respectively, to rental revenue over the remaining non-cancellable term of the underlying leases. If a lease terminates prior to the expiration of its initial term, the unamortized portion of straight-line rents receivable, lease inducements and lease intangibles associated with that lease will be written off to rental revenue. Lease contracts above market value, net are included in prepaid expenses and other assets and lease contracts below market value, net are included in prepaid rents and other liabilities in the accompany consolidated balance sheets. Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Lease contracts above market value $ 18,900 $ 20,500 Accumulated amortization (14,290 ) (15,362 ) Lease contracts above market value, net $ 4,610 $ 5,138 Lease contracts below market value $ 13,575 $ 24,175 Accumulated amortization (11,638 ) (21,345 ) Lease contracts below market value, net $ 1,937 $ 2,830 Our policy is to record an allowance for losses on accounts receivable equal to the estimated uncollectible accounts. The estimate is based on our historical experience and a review of the current status of our receivables. As of June 30, 2017 and December 31, 2016 , we had a note receivable from a former customer of $24.9 million and $25.0 million , respectively, which resulted from the settlement of our claim in this former customer's bankruptcy proceedings in the fourth quarter of 2016. We are accounting for the note receivable on a non-accrual basis. As of June 30, 2017 and December 31, 2016 , we had an allowance for this note receivable of $23.6 million , leaving a note receivable, net balance of $1.3 million and $1.4 million as of June 30, 2017 and December 31, 2016 , respectively, which is included within rents and other receivables, net in our accompanying consolidated balance sheets. Based on the principal payment schedule in the note that includes semiannual principal payments beginning in June 2017, which we received, we continue to be reasonably assured that we will be able to collect the balance of the net note receivable. We also establish an appropriate allowance for doubtful accounts for receivables arising from the straight-lining of rents. These receivables arise from revenue recognized in excess of amounts currently due under the lease and are recorded as deferred rent in the accompanying consolidated balance sheets. As of June 30, 2017 and December 31, 2016 , we had no material allowances. Our customer leases generally contain provisions under which the customers reimburse us for a portion of operating expenses and real estate taxes incurred by the property. Recoveries from tenants are included in revenue in the accompanying consolidated statements of operations in the period the applicable expenditures are incurred. The majority of our customer leases also provide us with a property management fee based on a percentage of base rent collected and property-level operating expenses, other than charges for power used by customers to run their servers and cool their space. Property management fees are included in base rent in the accompanying consolidated statements of operations in the applicable period in which they are earned. Other Revenue Other revenue primarily consists of services provided to customers on a non-recurring basis. This includes projects such as the purchase and installation of circuits, racks, circuit breakers and other customer requested items. Revenue is recognized on a completed contract basis when the project is finished and ready for the customer's use. This method is consistently applied for all periods presented. Costs of providing these services are included in other expenses in the accompanying consolidated statements of operations. Redeemable Noncontrolling Interests – Operating Partnership / Redeemable Partnership Units Redeemable noncontrolling interests – operating partnership, as presented on DFT’s consolidated balance sheets, represent the OP units held by individuals and entities other than DFT. These interests are also presented on the Operating Partnership’s consolidated balance sheets, referred to as “redeemable partnership units.” Accordingly, the following discussion related to redeemable noncontrolling interests – operating partnership of DFT refers equally to redeemable partnership units of the Operating Partnership. Redeemable noncontrolling interests – operating partnership, which require cash payment, or allow settlement in shares, but with the ability to deliver the shares outside of the control of DFT, are reported outside of the permanent equity section of the consolidated balance sheets of DFT and the Operating Partnership. Redeemable noncontrolling interests – operating partnership are adjusted for income, losses and distributions allocated to OP units not held by DFT (normal noncontrolling interest accounting amount). Adjustments to redeemable noncontrolling interests – operating partnership are recorded to reflect increases or decreases in the ownership of the Operating Partnership by holders of OP units, including the redemptions of OP units for cash or in exchange for shares of DFT’s common stock. If such adjustments result in redeemable noncontrolling interests – operating partnership being recorded at less than the redemption value of the OP units, redeemable noncontrolling interests – operating partnership are further adjusted to their redemption value. See Note 6. Redeemable noncontrolling interests – operating partnership are recorded at the greater of the normal noncontrolling interest accounting amount or redemption value. The following is a summary of activity for redeemable noncontrolling interests – operating partnership for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Net income attributable to redeemable noncontrolling interests – operating partnership — 10,218 Other comprehensive income attributable to redeemable noncontrolling interests – operating partnership - foreign currency translation adjustments — 17 Distributions declared — (11,682 ) Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable noncontrolling interests – operating partnership — 202,734 Balance at June 30, 2017 11,682,368 $ 714,494 The following is a summary of activity for redeemable partnership units for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable partnership units — 201,287 Balance at June 30, 2017 11,682,368 $ 714,494 Net income is allocated to controlling interests and redeemable noncontrolling interests – operating partnership in accordance with the limited partnership agreement of the Operating Partnership. The following is a summary of net income attributable to controlling interests and transfers to redeemable noncontrolling interests – operating partnership for the three and six months ended June 30, 2017 and 2016 (dollars in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Net income attributable to controlling interests $ 33,457 $ 53,090 $ 72,020 $ 84,309 Transfers from noncontrolling interests: Net change in the Company’s common stock and additional paid in capital due to the redemption of OP units and other adjustments to redeemable noncontrolling interests – operating partnership (136,486 ) (52,476 ) (124,840 ) (177,957 ) $ (103,029 ) $ 614 $ (52,820 ) $ (93,648 ) Earnings Per Share of DFT Basic earnings per share is calculated by dividing the net income attributable to common shares for the period by the weighted average number of common shares outstanding during the period using the two class method. Diluted earnings per share is calculated by dividing the net income attributable to common shares for the period by the weighted average number of common and dilutive securities outstanding during the period using the two class method. Earnings Per Unit of the Operating Partnership Basic earnings per unit is calculated by dividing the net income attributable to common units for the period by the weighted average number of common units outstanding during the period using the two class method. Diluted earnings per unit is calculated by dividing the net income attributable to common units for the period by the weighted average number of common and dilutive securities outstanding during the period using the two class method. Stock-based Compensation We periodically award stock-based compensation to employees and members of our Board of Directors in the form of common stock, restricted common stock, options and performance units. For each common stock award granted by DFT, the OP issues an equivalent common unit, which may be referred to herein as a common share, common stock, or a common unit. We estimate the fair value of the awards and recognize this value over the requisite service period. The fair value of restricted stock-based compensation is based on the market value of DFT’s common stock on the date of the grant. The fair value of options to purchase common stock is based on the Black-Scholes model. The fair value of performance units is based on a Monte Carlo simulation. Foreign Currency The U.S. dollar is the functional currency of our consolidated operations in the United States. The functional currency of our consolidated entities outside of the United States is the principal currency of the economic environment in which the entity primarily generates and expends cash. We translate the financial statements of consolidated entities whose functional currency is not the U.S. dollar into U.S. dollars. We translate assets and liabilities at the exchange rate in effect as of the financial statement date and translate income statement accounts using the weighted average exchange rate for the period. We include foreign currency translation adjustments and the effect of exchange rate changes on intercompany transactions of a long-term investment nature as a separate component of stockholders' equity or partners' capital. We report gains and losses from the effect of rate changes on intercompany receivables and payables that are not of a long-term investment nature, as well as gains and losses from remeasuring U.S. dollar transactions for non-U.S. functional currency entities, in other expenses on our consolidated statements of operations. For the three and six months ended June 30, 2017 and 2016 , we had no material foreign currency transaction losses. Recently Issued Accounting Pronouncements Revenue Recognition - In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standard Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606). The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. We are required to apply the new standard in the first quarter of 2018 and expect to elect the modified retrospective method of application of the standard. Although the standard does not apply to leases, we have assessed the impact on our financial position and results of operations. The standard will change our method of recognizing revenue on service and installation contracts included in other revenue in the accompanying consolidated statements of operations from the completed contract method to a method that recognizes revenue over the course of the contract based on the goods or services transferred to date relative to the remaining goods or services promised under the contract. We do not expect that this change will have a material effect on our financial position or results of operations. In addition, we currently do not believe the standard will have a material impact on how we recognize revenues from tenants with respect to operating expense recoveries on our financial position or results of operations. Leases - In February 2016, the FASB issued ASU No. 2016-02 - Leases (Topic 842). We are required to apply the new standard in the first quarter of 2019. The Company’s leases consist of both lease components that will be accounted for under this standard and non-lease components such as operating expense recovery income that will be accounted for under ASU 2014-09, Revenue from Contracts with Customers. The standard does not fundamentally change the lessor accounting model, and we do not believe that the new standard will have a material effect on our financial position or results of operations. Financial Instruments - In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. Under this guidance, a company will be required to use a new forward-looking "expected loss" model for trade and other receivables that generally will result in the earlier recognition of allowances for losses. We are required to apply the new standard in the first quarter of 2020 and do not believe that the new standard will have a material effect on our financial position or results of operations. Statement of Cash Flows - In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments. The standard provides guidance on eight specific cash flow classification issues including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. We are required to apply the new standard in the first quarter of 2018 and do not believe that the new standard will have a material effect on our financial position or results of operations. Statement of Cash Flows - Restricted Cash - In November 2016, the FASB issued ASU No. 2016-18 (Topic 230), Restricted Cash. The standard requires restricted cash to be included with cash and cash equivalents when reconciling the beginning and ending amounts in the statement of cash flows. We are required to apply the new standard in the first quarter of 2018 and do not believe that the new standard will have a material effect on our financial position or results of operations. Business Combinations - In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The standard narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition of assets or a business. The guidance is effective for public entities for fiscal years beginning after December 15, 2017 and interim periods within those years. We early-adopted the standard effective January 1, 2017. As a result of this new guidance, acquisitions may now result in an asset purchase rather than a business combination. We do not believe that the new standard will have a material effect on our financial position or results of operations. Reclassifications We have combined the previously reported line item for lease contracts above market value, net into the prepaid expenses and other assets line item in the accompanying consolidated balance sheet as of December 31, 2016 to conform to the current year presentation. We have also combined the previously reported line item for lease contracts below market value, net into the prepaid rents and other liabilities line item in the accompanying consolidated balance sheet as of December 31, 2016 to conform to the current year presentation.

3. Real Estate Assets

3. Real Estate Assets	6 Months Ended
3. Real Estate Assets	Jun. 30, 2017
Real Estate [Abstract]
Real Estate Disclosure [Text Block]	Real Estate Assets The following is a summary of our properties as of June 30, 2017 (dollars in thousands): Property Location Land Buildings and Improvements Construction in Progress and Land Held for Development Total Cost (2) ACC2 Ashburn, VA $ 2,500 $ 156,591 $ 159,091 ACC3 Ashburn, VA 1,071 96,080 97,151 ACC4 Ashburn, VA 6,600 538,869 545,469 ACC5 Ashburn, VA 6,443 299,016 305,459 ACC6 Ashburn, VA 5,518 216,829 222,347 ACC7 Ashburn, VA 9,753 335,490 345,243 ACC9 Phase I Ashburn, VA 4,235 119,573 123,808 CH1 Elk Grove Village, IL 21,025 359,171 380,196 CH2 Elk Grove Village, IL 14,392 256,910 271,302 SC1 Phases I-II Santa Clara, CA 20,202 433,099 453,301 VA3 Reston, VA 9,000 179,860 188,860 VA4 Bristow, VA 6,800 149,614 156,414 107,539 3,141,102 — 3,248,641 Construction in progress and land held for development (1) 551,258 551,258 $ 107,539 $ 3,141,102 $ 551,258 $ 3,799,899 (1) Properties located in Ashburn, VA (ACC8, ACC9 Phase II, ACC10, and ACC11), Elk Grove Village, IL (CH3), Santa Clara, CA (SC1 Phase III), Hillsboro, OR (OR1 and OR2), Vaughan, ON (TOR1) and Mesa, AZ (PHX1 and PHX2). (2) As of June 30, 2017 , the total cost of long-lived assets located in the United States totaled $3,701.6 million , and the total costs of long-lived assets located in Canada totaled $98.3 million (TOR1 in Vaughan, ON). In May 2017, we completed the acquisition of 56.5 acres of undeveloped land in Mesa, Arizona for a purchase price of $12.3 million , including transaction costs. We are holding this parcel of land for future development.

4. Debt

4. Debt	6 Months Ended
4. Debt	Jun. 30, 2017
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Debt Debt Summary as of June 30, 2017 and December 31, 2016 ($ in thousands) June 30, 2017 December 31, 2016 Amounts (1) % of Total Rates Maturities (years) Amounts Secured $ 107,500 7 % 2.8 % 0.7 $ 111,250 Unsecured 1,435,997 93 % 4.5 % 4.3 1,150,926 Total $ 1,543,497 100 % 4.4 % 4.1 $ 1,262,176 Fixed Rate Debt: Unsecured Notes due 2021 $ 600,000 39 % 5.9 % 4.2 $ 600,000 Unsecured Notes due 2023 (2) 250,000 16 % 5.6 % 6.0 250,000 Fixed Rate Debt $ 850,000 55 % 5.8 % 4.7 $ 850,000 Floating Rate Debt: Unsecured Credit Facility 335,997 22 % 2.7 % 3.1 50,926 Unsecured Term Loan 250,000 16 % 2.7 % 4.6 250,000 ACC3 Term Loan 107,500 7 % 2.8 % 0.7 111,250 Floating Rate Debt 693,497 45 % 2.7 % 3.2 412,176 Total $ 1,543,497 100 % 4.4 % 4.1 $ 1,262,176 (1) Principal amounts exclude deferred financing costs. (2) Principal amount excludes original issue discount of $1.6 million . Outstanding Indebtedness Unsecured Credit Facility and Unsecured Term Loan On July 25, 2016, we entered into an amended and restated credit agreement with a syndicate of banks (the "Amended and Restated Credit Agreement") that includes the following: • an unsecured revolving credit facility with a total commitment of $750 million (the "Unsecured Credit Facility"); and • an unsecured term loan facility, which has a total commitment and amount outstanding of $250 million (the "Unsecured Term Loan"). In November 2016, we added a Canadian dollar sublimit of up to $185 million (approximately CAD $250 million ) to the Unsecured Credit Facility, which allows us to borrow in Canadian dollars to fund our TOR1 data center development in Vaughan, Ontario. In addition, the Canadian borrowings allow us to hedge our foreign currency investment risk by having these liabilities translate at the same exchange rates as our Canadian assets at the end of each period. To date, we have designated all of the Canadian borrowings on the Unsecured Credit Facility, which totaled CAD $105 million as of June 30, 2017 , as a net investment hedge of our Canadian assets. For the effective portion of these net investment hedges, the currency translation effects of these borrowings are reflected in accumulated other comprehensive loss within shareholders' equity on our consolidated balance sheets, where they offset the currency translation effects of our investment in our Canadian assets. There has been no ineffectiveness for our net investment hedges to date as of June 30, 2017 . At our option, we may increase the total commitment under the Unsecured Credit Facility and the Unsecured Term Loan to $1.25 billion , if one or more lenders commit to being a lender for the additional amount and certain other customary conditions are met. The obligations under the Amended and Restated Credit Agreement are unconditionally guaranteed, jointly and severally, on a senior unsecured basis by DFT and all of the Operating Partnership’s subsidiaries that currently guaranty the obligations under the Unsecured Notes due 2021, listed below. We may prepay the Unsecured Credit Facility and Unsecured Term Loan at any time, in whole or in part, without penalty or premium. The Amended and Restated Credit Agreement requires that DFT, the Operating Partnership and their subsidiaries comply with various covenants, including with respect to restrictions on liens, incurring indebtedness, making investments, effecting mergers and/or asset sales, and certain limits on dividend payments, distributions and purchases of DFT's stock. In addition, the facility imposes financial maintenance covenants relating to, among other things, the following matters: • unsecured debt not exceeding 60% of the value of unencumbered assets, subject to an increase to 65% following a material acquisition; • net operating income generated from unencumbered properties divided by the amount of unsecured debt (net of unrestricted cash and cash equivalents) being not less than 12.5% , subject to a decrease to not less than 10% following a material acquisition; • total indebtedness not exceeding 60% of gross asset value, subject to an increase to 65% following a material acquisition; • fixed charge coverage ratio being not less than 1.70 to 1.00 ; and • tangible net worth being not less than $2.3 billion plus 75% of the sum of (i) net equity offering proceeds after July 25, 2016 (but excluding such net offering proceeds that are used within ninety (90) days following the consummation of the applicable equity offering for permitted equity redemptions) and (ii) the value of equity interests issued in connection with a contribution of assets to the Borrower or its subsidiaries; and • until an investment grade unsecured debt credit rating has been achieved, unhedged variable rate debt not exceeding 30% of gross asset value. The Amended and Restated Credit Agreement includes customary events of default, the occurrence of which, following any applicable cure period, would permit the lenders to, among other things, declare the principal, accrued interest and other obligations of the Operating Partnership under the facility to be immediately due and payable. We were in compliance with all covenants under the Unsecured Credit Facility and the Unsecured Term Loan as of June 30, 2017 . The Unsecured Credit Facility matures on July 25, 2020 and includes a one-year extension option, subject to the payment of an extension fee equal to 7.5 basis points on the total commitment in effect on such initial maturity date and certain other customary conditions. We may elect to have borrowings under the Unsecured Credit Facility bear interest at either LIBOR or a base rate, which is based on the lender's prime rate, in each case plus an applicable margin. Prior to our receiving an investment grade credit rating, the applicable margin added to LIBOR and the base rate is based on the table below. Applicable Margin Pricing Level Ratio of Total Indebtedness to Gross Asset Value LIBOR Rate Loans Base Rate Loans Level 1 Less than or equal to 35% 1.55 % 0.55 % Level 2 Greater than 35% but less than or equal to 40% 1.65 % 0.65 % Level 3 Greater than 40% but less than or equal to 45% 1.80 % 0.80 % Level 4 Greater than 45% but less than or equal to 52.5% 1.95 % 0.95 % Level 5 Greater than 52.5% 2.15 % 1.15 % The applicable margin is currently set at pricing Level 1. The terms of the Unsecured Credit Facility provide for the adjustment of the applicable margin from time to time according to the ratio of the Operating Partnership’s total indebtedness to gross asset value in effect from time to time. In the event we receive an investment grade credit rating, borrowings under the Unsecured Credit Facility will bear interest based on the table below. Applicable Margin Credit Rating Level Credit Rating LIBOR Rate Loans Base Rate Loans Level 1 Greater than or equal to A- by S&P or A3 by Moody’s 0.85 % 0.00 % Level 2 Greater than or equal to BBB+ by S&P or Baa1 by Moody’s 0.90 % 0.00 % Level 3 Greater than or equal to BBB by S&P or Baa2 by Moody’s 1.00 % 0.00 % Level 4 Greater than or equal to BBB- by S&P or Baa3 by Moody’s 1.20 % 0.20 % Level 5 Less than BBB- by S&P or Baa3 by Moody’s 1.55 % 0.55 % Following the receipt of such investment grade rating, the terms of the Unsecured Credit Facility provide for the adjustment of the applicable margin from time to time according to the rating then in effect. The amount available for borrowings under the Unsecured Credit Facility is determined according to a calculation comparing the value of certain unencumbered properties designated by the Operating Partnership at such time relative to the amount of the Operating Partnership's unsecured debt. Up to $35 million of the borrowings under the Unsecured Credit Facility may be used for letters of credit. As of June 30, 2017 , we had no letters of credit outstanding and borrowings of $336.0 million outstanding under this Unsecured Credit Facility. The Unsecured Term Loan matures on January 21, 2022 , with no extension option. Under the terms of the Unsecured Term Loan, we may elect to have borrowings under the loan bear interest at either LIBOR or a base rate, which is based on the lender's prime rate, in each case plus an applicable margin. Prior to our receiving an investment grade credit rating, the applicable margin added to LIBOR and the base rate is based on the table below. Applicable Margin Pricing Level Ratio of Total Indebtedness to Gross Asset Value LIBOR Rate Loans Base Rate Loans Level 1 Less than or equal to 35% 1.50 % 0.50 % Level 2 Greater than 35% but less than or equal to 40% 1.60 % 0.60 % Level 3 Greater than 40% but less than or equal to 45% 1.75 % 0.75 % Level 4 Greater than 45% but less than or equal to 52.5% 1.90 % 0.90 % Level 5 Greater than 52.5% 2.10 % 1.10 % The applicable margin is currently set at pricing Level 1. The terms of the Unsecured Term Loan also provide that, in the event we receive an investment grade credit rating, borrowings under the loan will bear interest based on the table below. Applicable Margin Credit Rating Level Credit Rating LIBOR Rate Loans Base Rate Loans Level 1 Greater than or equal to A- by S&P or A3 by Moody’s 0.825 % 0.00 % Level 2 Greater than or equal to BBB+ by S&P or Baa1 by Moody’s 0.875 % 0.00 % Level 3 Greater than or equal to BBB by S&P or Baa2 by Moody’s 1.00 % 0.00 % Level 4 Greater than or equal to BBB- by S&P or Baa3 by Moody’s 1.25 % 0.25 % Level 5 Less than BBB- by S&P or Baa3 by Moody’s 1.65 % 0.65 % Following the receipt of such investment grade rating, the terms of the loan provide for the adjustment of the applicable margin from time to time according to the rating then in effect. ACC3 Term Loan We have a $107.5 million term loan facility, the ACC3 Term Loan, that is secured by our ACC3 data center facility and an assignment of the lease agreement between us and the customer of ACC3. The borrower, one of our subsidiaries, may elect to have borrowings under the ACC3 Term Loan bear interest at (i) LIBOR plus 1.55% or (ii) a base rate, which is based on the lender's prime rate, plus 0.55% . The interest rate is currently at LIBOR plus 1.55% . The ACC3 Term Loan matures on March 27, 2018 , and we may prepay the ACC3 Term Loan at any time, in whole or in part, without penalty or premium. The Operating Partnership has guaranteed the outstanding principal amount of the ACC3 Term Loan, plus interest and certain costs under the loan. The ACC3 Term Loan imposes financial maintenance covenants relating to, among other things, the following matters: • consolidated total indebtedness of the Operating Partnership not exceeding 60% of gross asset value of the Operating Partnership; • fixed charge coverage ratio of the Operating Partnership being not less than 1.70 to 1.00 ; • tangible net worth of the Operating Partnership being not less than $1.3 billion plus 80% of the sum of (i) net equity offering proceeds and (ii) the value of equity interests issued in connection with a contribution of assets to the Operating Partnership or its subsidiaries; and • debt service coverage ratio of the borrower not less than 1.50 to 1.00 . We were in compliance with all of the covenants under the ACC3 Term Loan as of June 30, 2017 . Unsecured Notes due 2021 On September 24, 2013 , the Operating Partnership completed the sale of $600 million of 5.875% senior unsecured notes due 2021, which we refer to as the Unsecured Notes due 2021. The Unsecured Notes due 2021 were issued at face value and mature on September 15, 2021 . We pay interest on the Unsecured Notes due 2021 semi-annually, in arrears, on March 15th and September 15th of each year. The Unsecured Notes due 2021 are unconditionally guaranteed, jointly and severally, on a senior unsecured basis by DFT and certain of the Operating Partnership’s subsidiaries, including the subsidiaries that own the ACC2, ACC4, ACC5, ACC6, VA3, VA4, CH1 and SC1 data centers (collectively, the “Subsidiary Guarantors”), but excluding the subsidiaries that own the ACC3, ACC7, ACC9, ACC10, CH2, CH3 and TOR1 data centers, the ACC8, ACC11, OR1, OR2, PHX1 and PHX2 parcels of land, our taxable REIT subsidiary, DF Technical Services LLC and our property management subsidiary, DF Property Management LLC. The Unsecured Notes due 2021 rank (i) equally in right of payment with all of the Operating Partnership's existing and future senior unsecured indebtedness, (ii) senior in right of payment with all of its existing and future subordinated indebtedness, (iii) effectively subordinate to any of the Operating Partnership's existing and future secured indebtedness and (iv) effectively junior to any liabilities of any subsidiaries of the Operating Partnership that do not guarantee the Unsecured Notes due 2021. The guarantees of the Unsecured Notes due 2021 by DFT and the Subsidiary Guarantors rank (i) equally in right of payment with such guarantor's existing and future senior unsecured indebtedness, (ii) senior in right of payment with all of such guarantor's existing and future subordinated indebtedness and (iii) effectively subordinate to any of such guarantor's existing and future secured indebtedness. The Unsecured Notes due 2021 may be redeemed at the Operating Partnership's option, in whole or in part, at any time, at the following redemption prices (expressed as percentages of the principal amount thereof) if redeemed during the 12-month period commencing September 15 of the years indicated below, in each case together with accrued and unpaid interest to the date of redemption: Year Redemption Price 2016 104.406 % 2017 102.938 % 2018 101.469 % 2019 and thereafter 100.000 % If there is a change of control (as defined in the indenture governing the Unsecured Notes due 2021) of the Operating Partnership or DFT, we must offer to purchase the Unsecured Notes due 2021 at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. In addition, in certain circumstances we may be required to use the net proceeds of asset sales to purchase a portion of the Unsecured Notes due 2021 at 100% of the principal amount thereof, plus accrued and unpaid interest. The Unsecured Notes due 2021 have certain covenants limiting the ability of or prohibiting the Operating Partnership and certain of its subsidiaries from, among other things, (i) incurring secured or unsecured indebtedness, (ii) entering into sale and leaseback transactions, (iii) making certain dividend payments, distributions, purchases of DFT's common stock and investments, (iv) entering into transactions with affiliates, (v) entering into agreements limiting the ability to make certain transfers and other payments from subsidiaries, (vi) engaging in sales of assets or (vii) engaging in certain mergers, consolidations or transfers/sales of all or substantially all assets. However, DFT may pay the minimum dividend necessary to meet its REIT income distribution requirements. The Unsecured Notes due 2021 also require the Operating Partnership and the Subsidiary Guarantors to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis. The Unsecured Notes due 2021 also have customary events of default, including, but not limited to, nonpayment, breach of covenants, and payment or acceleration defaults in certain other indebtedness of ours or certain of our subsidiaries. Upon an event of default, the holders of the Unsecured Notes due 2021 or the trustee may declare the Unsecured Notes due 2021 due and immediately payable. We were in compliance with all covenants under the Unsecured Notes due 2021 as of June 30, 2017 . Unsecured Notes due 2023 On June 9, 2015 , the Operating Partnership completed the sale of $250 million of 5.625% senior unsecured notes due 2023, which we refer to as the Unsecured Notes due 2023. The Unsecured Notes due 2023 were issued at 99.205% of par and mature on June 15, 2023 . We pay interest on the Unsecured Notes due 2023 semi-annually, in arrears, on June 15th and December 15th of each year. The Unsecured Notes due 2023 are unconditionally guaranteed, jointly and severally, on a senior unsecured basis by DFT and the same Subsidiary Guarantors as those that guarantee the Unsecured Notes due 2021. The ranking of the Unsecured Notes due 2023 and the guarantees of these notes are the same as the ranking of the Unsecured Notes due 2021 and the guarantee of those notes. At any time prior to June 15, 2018, the Operating Partnership may redeem the Unsecured Notes due 2023, in whole or in part, at a price equal to the sum of (i) 100% of the principal amount of the Unsecured Notes due 2023 to be redeemed, plus (ii) a make-whole premium and accrued and unpaid interest. The Unsecured Notes due 2023 may be redeemed at the Operating Partnership's option, in whole or in part, at any time, on and after June 15, 2018 at the following redemption prices (expressed as percentages of the principal amount thereof) if redeemed during the 12-month period commencing June 15 of the years indicated below, in each case together with accrued and unpaid interest to the date of redemption: Year Redemption Price 2018 104.219 % 2019 102.813 % 2020 101.406 % 2021 and thereafter 100.000 % If there is a change of control (as defined in the indenture governing the Unsecured Notes due 2023) of the Operating Partnership or DFT, we must offer to purchase the Unsecured Notes due 2023 at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. In addition, in certain circumstances we may be required to use the net proceeds of asset sales to purchase a portion of the Unsecured Notes due 2023 at 100% of the principal amount thereof, plus accrued and unpaid interest. The Unsecured Notes due 2023 have certain covenants limiting or prohibiting the ability of the Operating Partnership and certain of its subsidiaries from, among other things, (i) incurring secured or unsecured indebtedness, (ii) entering into sale and leaseback transactions, (iii) making certain dividend payments, distributions, purchases of DFT's common stock and investments, (iv) entering into transactions with affiliates, (v) entering into agreements limiting the ability to make certain transfers and other payments from subsidiaries, (vi) engaging in sales of assets or (vii) engaging in certain mergers, consolidations or transfers/sales of all or substantially all assets. However, DFT may pay the minimum dividend necessary to meet its REIT income distribution requirements. The Unsecured Notes due 2023 also require the Operating Partnership and the Subsidiary Guarantors to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis. The Unsecured Notes due 2023 also have customary events of default, including, but not limited to, nonpayment, breach of covenants, and payment or acceleration defaults in certain other indebtedness of ours or certain of our subsidiaries. Upon an event of default, the holders of the Unsecured Notes due 2023 or the trustee may declare the Unsecured Notes due 2023 due and immediately payable. We were in compliance with all covenants under the Unsecured Notes due 2023 as of June 30, 2017 . Bridge Loan Commitment On June 8, 2017, the Company and Goldman Sachs Bank USA (“Goldman Sachs”) entered into a commitment letter under which Goldman Sachs has committed to provide financing for working capital and certain other general corporate purposes to the Operating Partnership in the form of an unsecured bridge loan in an aggregate principal amount of up to $200 million (the “Bridge Facility”), subject to certain customary closing conditions, including entering into definitive loan documents for the Bridge Facility. Goldman Sachs’ commitment to provide the Bridge Facility will terminate on November 30, 2017 if the closing of the Bridge Facility does not occur prior to such date. In addition, the commitment letter appoints Goldman Sachs to act as sole lead arranger, sole bookrunner and sole syndication agent, and as administrative agent, in connection with the Bridge Facility. The Company has not notified Goldman Sachs of its intent to draw on the Bridge Facility. The commitment letter also provides that amounts outstanding under the Bridge Facility would bear interest at a per annum rate equal to LIBOR plus a margin of 150 basis points, which margin increases by an additional 50 basis points every three months following the date on which funds are drawn under the Bridge Facility. If the Company were to draw on the Bridge Facility, it would mature on the earlier of (a) the date on which the Mergers contemplated by the Merger Agreement are consummated or (b) the date that is 364 days after the date of initial funding. Subject to exceptions to be agreed to in the definitive loan documents, proceeds from (i) the incurrence of indebtedness by us or any of our subsidiaries, (ii) the issuance of equity securities by the Company and (iii) non-ordinary course asset sales, including of any of our facilities, in each case, would be required to be used to prepay amounts outstanding under the Bridge Facility. Any outstanding amounts under the Bridge Facility would be guaranteed by the same Subsidiary Guarantors as those that guarantee the Amended and Restated Credit Agreement, the Unsecured Notes due 2021 and the Unsecured Notes due 2023. In addition, the commitment letter provides that the definitive loan documents will contain various covenants, including financial maintenance covenants, and events of defaults substantially similar to those contained in the Amended and Restated Credit Agreement. A summary of our debt maturity schedule as of June 30, 2017 is as follows: Debt Maturity as of June 30, 2017 ($ in thousands) Year Fixed Rate (1) Floating Rate (1) Total (1) % of Total Rates 2017 $ — $ 5,000 (4) $ 5,000 0.3 % 2.8 % 2018 — 102,500 (4) 102,500 6.6 % 2.8 % 2019 — — — — % — % 2020 — 335,997 (5) 335,997 21.8 % 2.7 % 2021 600,000 (2) — 600,000 38.9 % 5.9 % 2022 — 250,000 (6) 250,000 16.2 % 2.7 % 2023 250,000 (3) — 250,000 16.2 % 5.6 % Total $ 850,000 $ 693,497 $ 1,543,497 100.0 % 4.4 % (1) Principal amounts exclude deferred financing costs. (2) The 5.875% Unsecured Notes due 2021 mature on September 15, 2021 . (3) The 5.625% Unsecured Notes due 2023 mature on June 15, 2023 . Principal amount excludes original issue discount of $1.6 million as of June 30, 2017 . (4) The ACC3 Term Loan matures on March 27, 2018 with no extension option. Quarterly principal payments of $1.25 million began on April 1, 2016 , increased to $2.5 million on April 1, 2017 and continue through maturity. (5) The Unsecured Credit Facility matures on July 25, 2020 with a one-year extension option. (6) The Unsecured Term Loan matures on January 21, 2022 with no extension option.

5. Commitments and Contingencie

5. Commitments and Contingencies	6 Months Ended
5. Commitments and Contingencies	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Commitments and Contingencies The Company, the Operating Partnership, the directors and several affiliated entities, as well as Digital Realty and certain of its affiliates, have been named as defendants in one putative shareholder class action lawsuit, and the Company and the directors have been named as defendants in two additional putative shareholder class action lawsuits, filed in connection with the Mergers (collectively, the “Lawsuits”). The first case is styled Louis Scarantino v. DuPont Fabros Technology, Inc. et al. , Case No. 1:17-cv-01428 (D.D.C.) and was filed on July 18, 2017 in the United States District Court for the District of Columbia. The second case was styled William Lawrence v. DuPont Fabros Technology, Inc. et al. , Case No: 1:17-cv-02042 and was filed, incorrectly, on July 21, 2017 in the United States District Court for the District of Maryland. On July 24, 2017, that action was terminated and the complaint was re-filed in the United States District Court for the District of Columbia and styled Lawrence v. DuPont Fabros Technology, Inc ., Case No. 1:17-cv-1465 (D.D.C.). The third case is styled Daniel Canchola v. DuPont Fabros Technology, Inc. et al. , Case No: 1:17-cv-01481 (D.D.C.) and was filed on July 24, 2017 in the United States District Court for the District of Columbia. The Lawsuits allege violations of the Securities and Exchange Act of 1934 (the “Exchange Act”) arising in connection with the filing of DLR’s Registration Statement on Form S-4 (the "Registration Statement") that was filed in connection with the proposed Mergers. The plaintiffs in the Lawsuits seek, among other things, damages, an order enjoining consummation of the Mergers, changes to the Registration Statement, an award of attorney's fees and declaratory relief stating that the defendants violated the Exchange Act. The Company disputes the allegations raised in the Lawsuits and will vigorously defend the Company, the Operating Partnership, the directors and related defendants. Further, we are involved from time to time in various other legal proceedings, lawsuits, examinations by various tax authorities and claims that have arisen in the ordinary course of business. We currently believe that the resolution of such matters will not have a material adverse effect on our financial condition or results of operations. Contracts related to the development of the ACC9 Phases I-II, SC1 Phase III, CH3 Phases I-II, ACC10 Phase I and TOR1 Phase IA data centers were in place as of June 30, 2017 . These contracts are cost-plus in nature whereby the contract sum is the aggregate of the contractor's cost to perform the work and to purchase the equipment plus a contractor fee. Control estimates, which are adjusted from time to time to reflect any contract changes, are estimates of the total contract cost at completion. As of June 30, 2017 , the control estimates were as follows for our projects under development: • ACC9 Phase I: $168.4 million , of which $164.9 million has been incurred, and an additional $1.3 million has been committed under this contract. • ACC9 Phase II: $63.9 million , of which $50.5 million has been incurred, and an additional $5.7 million has been committed under this contract. • SC1 Phase III: $150.6 million , of which $135.4 million has been incurred, and an additional $15.2 million has been committed under this contract. • CH3 Phase I: $187.9 million , of which $103.6 million has been incurred, and an additional $66.5 million has been committed under this contract. • CH3 Phase II: $54.7 million , of which $1.3 million has been incurred, and an additional $29.5 million has been committed under this contract. • ACC10 Phase I: $159.1 million , of which $20.4 million has been incurred, and an additional $53.5 million has been committed under this contract. • TOR1 Phase IA: $154.8 million , of which $46.9 million has been incurred, and an additional $55.4 million has been committed under this contract. Concurrent with DFT’s October 2007 initial public offering, we entered into tax protection agreements with some of the contributors of the initial properties including our Chairman of the Board and our former CEO. Pursuant to the terms of these agreements, we must provide an opportunity for certain contributors of the initial properties to guarantee a secured loan and, if we fail to do so, we could be liable for protection on the taxes related to approximately $104 million (unaudited) of remaining minimum liability. The amount of our liability for protection on taxes could be based on the highest federal, state and local capital gains tax rates of the applicable contributor. Any sale by the Company that requires payments to any of DFT’s executive officers or directors pursuant to these agreements requires the approval of at least 75% of the disinterested members of DFT’s Board of Directors.

6. Redeemable noncontrolling in

6. Redeemable noncontrolling interests operating partnership / Redeemable partnership units	6 Months Ended
	Jun. 30, 2017
Redeemable noncontrolling interests – operating partnership / Redeemable partnership units [Abstract]
Redeemable noncontrolling interests – operating partnership / Redeemable partnership units [Text Block]	Redeemable noncontrolling interests – operating partnership / Redeemable partnership units Redeemable noncontrolling interests – operating partnership, as presented in DFT’s accompanying consolidated balance sheets, represent the OP units held by individuals and entities other than DFT. These interests are also presented in the Operating Partnership’s consolidated balance sheets, referred to as “redeemable partnership units.” Accordingly, the following discussion related to redeemable noncontrolling interests – operating partnership of DFT refers equally to redeemable partnership units of the Operating Partnership. The redemption value of redeemable noncontrolling interests – operating partnership as of June 30, 2017 and December 31, 2016 was $714.5 million and $591.1 million , respectively, based on the closing share price of DFT’s common stock of $61.16 and $43.93 , respectively, on those dates. Holders of OP units are entitled to receive distributions in a per unit amount equal to the per share dividends made with respect to each share of DFT’s common stock, if and when DFT’s Board of Directors declares such a dividend. Holders of OP units have the right to tender their units for redemption, in an amount equal to the fair market value of DFT’s common stock. DFT may elect to redeem tendered OP units for cash or for shares of DFT’s common stock. During the six months ended June 30, 2017 , OP unitholders redeemed a total of 1,773,147 OP units in exchange for an equal number of shares of common stock. See Note 2.

7. Preferred Stock

7. Preferred Stock	6 Months Ended
7. Preferred Stock	Jun. 30, 2017
Preferred Stock [Abstract]
Preferred Stock [Text Block]	Preferred Stock Series C Preferred Stock In May 2016, DFT issued 8,050,000 shares of Series C Preferred Stock for $201.3 million in an underwritten public offering that resulted in proceeds to the Company, net of underwriting discounts, commissions and other offering costs of $194.3 million . The liquidation preference on the Series C Preferred Stock is $25 per share and dividends are scheduled quarterly. For each share of Series C Preferred Stock issued by DFT, the Operating Partnership issued a preferred unit equivalent to DFT with the same terms. In 2017 , DFT declared the following cash dividends on its Series C Preferred Stock, of which the OP will pay or has paid an equivalent distribution on its preferred units: • $0.4140625 per share payable to stockholders of record as of February 1, 2017 . This dividend was paid on February 15, 2017 . • $0.4140625 per share payable to stockholders of record as of May 1, 2017 . This dividend was paid on May 15, 2017 . • $0.4140625 per share payable to stockholders of record as of August 1, 2017 . This dividend is scheduled to be paid on August 15, 2017 . Except in instances relating to preservation of our qualification as a REIT or in connection with our special optional redemption right discussed below, our Series C Preferred Stock is not redeemable prior to May 15, 2021. On and after May 15, 2021, we may, at our option, redeem our Series C Preferred Stock, in whole, at any time, or in part, from time to time, for cash at a redemption price of $25 per share, plus any accrued and unpaid dividends (whether or not declared) to, but not including, the date of redemption. Upon the occurrence of a change of control, we have a special optional redemption right that enables us to redeem the Series C Preferred Stock within 120 days after the first date on which a change of control has occurred resulting in neither DFT nor the surviving entity having a class of common shares listed on the NYSE, NYSE MKT, or NASDAQ. For this special redemption right, the redemption price is $25 per share in cash, plus accrued and unpaid dividends (whether or not declared) to, but not including, the redemption date. Based on the terms of the pending Merger with DLR, we do not believe this redemption right will be exercised. Upon the occurrence of a change of control that results in neither DFT nor the surviving entity having a class of common shares listed on the NYSE, NYSE MKT, or NASDAQ, the holder will have the right (subject to our special optional redemption right to redeem the Series C Preferred Stock) to convert some or all of the Series C Preferred Stock into a number of shares of DFT's common stock equal to the lesser of (A) the quotient obtained by dividing (i) the sum of (x) $25 , plus (y) an amount equal to any accrued and unpaid dividends, whether or not declared to, but not including, the date of conversion (unless the date of conversion is after a record date for a Series C Preferred Stock dividend payment and prior to the corresponding Series C Preferred Stock dividend payment date, in which case no additional amount for such accrued and unpaid dividend will be included in this quotient), by (ii) the price of DFT's common stock, and (B) 1.1723 (the Share Cap), subject to certain adjustments and provisions for the receipt of alternative consideration of equivalent value.

8. Stockholders Equity of the R

8. Stockholders Equity of the REIT and Partners Capital of the OP	6 Months Ended
	Jun. 30, 2017
Stockholders’ Equity of the REIT and Partners’ Capital of the OP [Abstract]
Stockholders' Equity Of The REIT And Partners' Capital Of The OP [Text Block]	Stockholders’ Equity of DFT and Partners’ Capital of the OP In 2017 , DFT declared and paid the following cash dividends per share on its common stock, of which the OP paid equivalent distributions on OP units: • $0.50 per share payable to stockholders of record as of April 3, 2017 . This dividend was paid on April 17, 2017 . • $0.50 per share payable to stockholders of record as of July 3, 2017 . This dividend was paid on July 17, 2017 .

9. Equity Compensation Plan

9. Equity Compensation Plan	6 Months Ended
9. Equity Compensation Plan	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Equity Compensation Plan In June 2017, our amended and restated 2011 Equity Incentive Plan (the “2011 Amended Plan”) became effective following receipt of approval from our stockholders. The 2011 Amended Plan is administered by the Compensation Committee of our Board of Directors. The 2011 Amended Plan allows us to provide equity-based compensation to our personnel and directors in the form of stock options, stock appreciation rights, dividend equivalent rights, restricted stock, restricted stock units, performance-based awards, unrestricted stock, long term incentive units, or LTIP units, and other awards. The 2011 Amended Plan authorizes a maximum aggregate of 9,000,000 share equivalents be reserved for future issuances. In addition, under the 2011 Amended Plan, shares of common stock that are subject to awards of options or stock appreciation rights will be counted against the 2011 Amended Plan share limit as one share for every one share subject to the award. Any shares of stock that are subject to awards other than options or stock appreciation rights shall be counted against the 2011 Amended Plan share limit as 5.39 shares for every one share subject to the award. As of June 30, 2017 , 56,520 share equivalents were issued under the 2011 Amended Plan, and the maximum aggregate amount of share equivalents remaining available for future issuance was 8,943,480 . Restricted Stock Restricted stock awards vest over specified periods of time as long as the employee remains employed with the Company. The following table sets forth the number of unvested shares of restricted stock and the weighted average fair value of these shares at the date of grant: Shares of Restricted Stock Weighted Average Fair Value at Date of Grant Unvested balance at December 31, 2016 309,175 $ 32.30 Granted 174,319 47.41 Vested (123,606 ) 30.00 Forfeited (10,403 ) 37.08 Unvested balance at June 30, 2017 349,485 $ 40.03 During the six months ended June 30, 2017 , we issued 174,319 shares of restricted stock, which had an aggregate value of $8.3 million on the grant date. This amount will be amortized to expense over the respective vesting periods, which are between three and five years. Also during the six months ended June 30, 2017 , 123,606 shares of restricted stock vested at a value of $6.3 million on the respective vesting dates. As of June 30, 2017 , total unearned compensation on restricted stock was $11.2 million , and the weighted average vesting period was 1.8 years . In accordance with the terms of each of the restricted stock award agreements, all unvested restricted stock will vest at the closing of the Company Merger. Stock Options Stock option awards are granted with an exercise price equal to the closing market price of DFT’s common stock at the date of grant and vest over specified periods of time as long as the employee remains employed with the Company. All shares to be issued upon option exercises will be newly issued shares and the options have 10-year contractual terms. During the six months ended June 30, 2017 , no options were granted to employees. The last grant of stock options occurred in 2013, and all stock option grants have fully vested. A summary of our stock option activity for the six months ended June 30, 2017 is presented in the tables below. Number of Options Weighted Average Exercise Price Under option, December 31, 2016 751,479 $ 15.83 Granted — — Exercised — — Forfeited — — Under option, June 30, 2017 751,479 $ 15.83 Shares Subject to Option Total Unearned Compensation Weighted Average Remaining Contractual Term As of June 30, 2017 751,479 $ — 3.2 years The following tables set forth the number of exercisable options as of June 30, 2017 and the weighted average fair value and exercise price of these options at the grant date. Number of Options Weighted Average Fair Value at Date of Grant Options Exercisable at December 31, 2016 751,479 $ 4.71 Vested — — Exercised — — Options Exercisable at June 30, 2017 751,479 $ 4.71 Exercisable Options Intrinsic Value Weighted Average Exercise Price Weighted Average Remaining Contractual Term As of June 30, 2017 751,479 $ 34.1 million $ 15.83 3.2 years Performance Units Performance unit awards are awarded to certain executive employees and have a three calendar-year performance period with no dividend rights. Performance units will be settled in common shares following the performance period as long as the employee remains employed with us on the vesting date, which is the March 1st date following the last day of the applicable performance period. Performance units are valued using a Monte Carlo simulation and are amortized over the approximate three-year vesting period from the grant date to the vesting date. One-half of the recipient's performance unit award is dependent on DFT’s total stockholder return compared to the MSCI US REIT index over the three calendar-year performance period. The other half of the performance unit award is dependent on DFT’s total stockholder return compared to an index of five comparable publicly traded data center companies over the three calendar-year performance period. For each half of the performance unit awards granted, the number of common shares that are ultimately settled could range from 0% to 300% . For the performance units granted in 2014, based on DFT’s total stockholder return compared to the MSCI US REIT index return for half of the grant and an index of five comparable publicly traded data center companies for the other half of the grant for the period from January 1, 2014 to January 1, 2017, 57,177 common shares were issued upon their vesting on March 1, 2017, which represents an aggregate payout of 150% . The following table summarizes the assumptions used to value, and the resulting fair and maximum values of, the performance units granted during the six months ended June 30, 2017 . Assumptions Number of performance units granted 69,610 Expected volatility 24 % Expected annual dividend 4.23 % Risk-free rate 1.50 % Performance unit fair value at date of grant $ 73.46 Total grant fair value at date of grant $5.1 million Maximum value of grant on vesting date based on closing price of DFT's stock at the date of grant $9.9 million A summary of our performance unit activity for the six months ended June 30, 2017 is presented in the table below. Number of Performance Units Weighted Average Fair Value at Date of Grant Unvested balance at December 31, 2016 196,652 $ 37.25 Granted 69,610 73.46 Vested (40,277 ) 33.94 Forfeited (5,812 ) 56.00 Unvested balance at June 30, 2017 220,173 $ 48.81 As of June 30, 2017 , total unearned compensation on performance units was $6.6 million , and the weighted average vesting period was 1.7 years . In accordance with the terms of each of the performance unit award agreements, all performance units will vest on the date of the closing of the Company Merger closing date at the greater of (i) 100% of target or (ii) the actual results of the performance units through the closing date.

10. Earnings Per Share of the R

10. Earnings Per Share of the REIT	6 Months Ended
10. Earnings Per Share of the REIT	Jun. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share of DFT The following table sets forth the reconciliation of basic and diluted average shares outstanding and net income attributable to common shares used in the computation of earnings per share of common stock (in thousands except for share and per share amounts): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Basic and Diluted Shares Outstanding Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Effect of dilutive securities 1,001,676 861,057 991,329 857,089 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Calculation of Earnings per Share – Basic Net income attributable to common shares $ 30,124 $ 37,299 $ 65,354 $ 61,707 Net income allocated to unvested restricted shares (175 ) (157 ) (351 ) (312 ) Net income attributable to common shares, adjusted 29,949 37,142 65,003 61,395 Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Earnings per common share – basic $ 0.39 $ 0.50 $ 0.84 $ 0.87 Calculation of Earnings per Share – Diluted Net income attributable to common shares, adjusted $ 29,949 $ 37,142 $ 65,003 $ 61,395 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Earnings per common share – diluted $ 0.38 $ 0.49 $ 0.83 $ 0.86 The following table sets forth the number of performance units that have been excluded from the calculation of diluted earnings per share as their effect would have been antidilutive (in millions): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Performance Units 0.1 0.1 0.1 0.1

11. Earnings Per Unit of the Op

11. Earnings Per Unit of the Operating Partnership	6 Months Ended
11. Earnings Per Unit of the Operating Partnership	Jun. 30, 2017
Earnings Per Unit [Abstract]
Earnings per unit of the Operating Partnership [Text Block]	Earnings Per Unit of the Operating Partnership The following table sets forth the reconciliation of basic and diluted average units outstanding and net income attributable to common units used in the computation of earnings per unit (in thousands except for unit and per unit amounts): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Basic and Diluted Units Outstanding Weighted average common units – basic (includes redeemable partnership units and units of general and limited partners) 89,168,665 88,977,907 89,132,366 85,483,976 Effect of dilutive securities 1,001,676 861,057 991,329 857,089 Weighted average common units – diluted 90,170,341 89,838,964 90,123,695 86,341,065 Calculation of Earnings per Unit – Basic Net income attributable to common units $ 34,630 $ 44,766 $ 75,572 $ 74,652 Net income allocated to unvested restricted units (175 ) (159 ) (351 ) (312 ) Net income attributable to common units, adjusted 34,455 44,607 75,221 74,340 Weighted average common units – basic 89,168,665 88,977,907 89,132,366 85,483,976 Earnings per common unit – basic $ 0.39 $ 0.50 $ 0.84 $ 0.87 Calculation of Earnings per Unit – Diluted Net income attributable to common units, adjusted $ 34,455 $ 44,607 $ 75,221 $ 74,340 Weighted average common units – diluted 90,170,341 89,838,964 90,123,695 86,341,065 Earnings per common unit – diluted $ 0.38 $ 0.49 $ 0.83 $ 0.86 The following table sets forth the amount of performance units that have been excluded from the calculation of diluted earnings per unit as their effect would have been antidilutive (in millions): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Performance Units 0.1 0.1 0.1 0.1

12. Fair Value

12. Fair Value	6 Months Ended
12. Fair Value	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Assets and Liabilities Measured at Fair Value The authoritative guidance issued by the FASB requires disclosure of the fair value of financial instruments. Fair value estimates are subjective in nature and are dependent on a number of important assumptions, including estimates of future cash flows, risks, discount rates, and relevant comparable market information associated with each financial instrument. The use of different market assumptions and estimation methodologies may have a material effect on the reported estimated fair value amounts. Accordingly, the amounts are not necessarily indicative of the amounts we would realize in a current market exchange. The following methods and assumptions were used in estimating the fair value amounts and disclosures for financial instruments as of June 30, 2017 : • Cash and cash equivalents: The carrying amount of cash and cash equivalents reported in the accompanying consolidated balance sheets approximates fair value because of the short maturity of these instruments (i.e., less than 90 days). • Rents and other receivables, accounts payable and accrued liabilities, and prepaid rents: The carrying amount of these assets and liabilities reported in the accompanying consolidated balance sheets approximates fair value because of the short-term nature of these amounts. • Debt: The combined balance of the Unsecured Notes due 2021, Unsecured Notes due 2023, Unsecured Term Loan, Unsecured Credit Facility and ACC3 Term Loan, excluding the effect of deferred financing costs, was $1,541.9 million with a fair value of $1,573.8 million . The Unsecured Notes due 2021 and the Unsecured Notes due 2023 were valued based on Level 2 data which consisted of a quoted price from Bloomberg. The Unsecured Term Loan, the US dollar-denominated borrowings under the Unsecured Credit facility and ACC3 Term Loan were valued based on Level 3 data which consisted of a one-month LIBOR swap rate coterminous with the maturity of each loan plus a spread consistent with current market conditions. The Canadian dollar-denominated borrowings under the Unsecured Credit facility were valued based on Level 3 data which consisted of a one-month Canadian Dollar Offered Rate swap rate coterminous with the maturity of the Unsecured Credit Facility plus a spread consistent with current market conditions.

13. Supplemental Consolidating

13. Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes	6 Months Ended
	Jun. 30, 2017
Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes [Abstract]
Additional Financial Information Disclosure [Text Block]	Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes The Unsecured Notes due 2021 and the Unsecured Notes due 2023 are unconditionally guaranteed, jointly and severally, on a senior unsecured basis by DFT and certain of the Operating Partnership’s subsidiaries, including the subsidiaries that own the ACC2, ACC4, ACC5, ACC6, VA3, VA4, CH1 and SC1 data centers (collectively, the “Subsidiary Guarantors”), but excluding the subsidiaries that own the ACC3, ACC7, ACC9, ACC10, CH2, CH3 and TOR1 data centers, the ACC8, ACC11, OR1, OR2, PHX1 and PHX2 parcels of land, our taxable REIT subsidiary, DF Technical Services LLC and our property management subsidiary, DF Property Management LLC. The following consolidating financial information sets forth the financial position as of June 30, 2017 and December 31, 2016 and the results of operations and cash flows for the three and six months ended June 30, 2017 and 2016 of the Operating Partnership, Subsidiary Guarantors and the Subsidiary Non-Guarantors. DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING BALANCE SHEETS (in thousands except unit data) June 30, 2017 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total ASSETS Income producing property: Land $ — $ 78,087 $ 29,452 $ — $ 107,539 Buildings and improvements — 2,333,048 808,054 — 3,141,102 — 2,411,135 837,506 — 3,248,641 Less: accumulated depreciation — (647,268 ) (69,451 ) — (716,719 ) Net income producing property — 1,763,867 768,055 — 2,531,922 Construction in progress and property held for development — 148,983 402,275 — 551,258 Net real estate — 1,912,850 1,170,330 — 3,083,180 Cash and cash equivalents 21,062 — 5,848 — 26,910 Rents and other receivables, net 15 3,803 5,604 — 9,422 Deferred rent, net — 101,707 18,892 — 120,599 Deferred costs, net 5,129 10,116 8,428 — 23,673 Investment in affiliates 3,001,538 — — (3,001,538 ) — Prepaid expenses and other assets 5,486 29,635 13,346 — 48,467 Total assets $ 3,033,230 $ 2,058,111 $ 1,222,448 $ (3,001,538 ) $ 3,312,251 LIABILITIES AND PARTNERS’ CAPITAL Liabilities: Line of credit $ 335,997 $ — $ — $ — $ 335,997 Mortgage notes payable, net of deferred financing costs — — 107,175 — 107,175 Unsecured term loan, net of deferred financing costs 249,143 — — — 249,143 Unsecured notes payable, net of discount and deferred financing costs 838,461 — — — 838,461 Accounts payable and accrued liabilities 9,759 21,804 7,863 — 39,426 Construction costs payable — 13,475 61,320 — 74,795 Accrued interest payable 11,507 — 8 — 11,515 Distribution payable 46,431 — — — 46,431 Prepaid rents and other liabilities 253 48,582 18,794 — 67,629 Total liabilities 1,491,551 83,861 195,160 — 1,770,572 Redeemable partnership units 714,494 — — — 714,494 Commitments and contingencies — — — — — Limited Partners’ Capital: Series C cumulative redeemable perpetual preferred units, 8,050,000 units issued and outstanding at June 30, 2017 201,250 — — — 201,250 Common units, 77,183,215 units issued and outstanding at June 30, 2017 620,609 1,974,250 1,027,288 (3,001,538 ) 620,609 General partner’s capital, 662,373 common units issued and outstanding at June 30, 2017 5,326 — — — 5,326 Total partners’ capital 827,185 1,974,250 1,027,288 (3,001,538 ) 827,185 Total liabilities & partners’ capital $ 3,033,230 $ 2,058,111 $ 1,222,448 $ (3,001,538 ) $ 3,312,251 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING BALANCE SHEETS (in thousands except unit data) December 31, 2016 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total ASSETS Income producing property: Land $ — $ 80,673 $ 25,217 $ — $ 105,890 Buildings and improvements — 2,332,771 685,590 — 3,018,361 — 2,413,444 710,807 — 3,124,251 Less: accumulated depreciation — (605,488 ) (56,695 ) — (662,183 ) Net income producing property — 1,807,956 654,112 — 2,462,068 Construction in progress and property held for development — 88,836 242,147 — 330,983 Net real estate — 1,896,792 896,259 — 2,793,051 Cash and cash equivalents 31,781 — 2,628 — 34,409 Rents and other receivables, net 1,390 4,743 5,400 — 11,533 Deferred rent, net — 109,142 13,916 — 123,058 Deferred costs, net 6,066 11,632 8,078 — 25,776 Investment in affiliates 2,713,096 — — (2,713,096 ) — Prepaid expenses and other assets 3,463 32,479 10,480 — 46,422 Total assets $ 2,755,796 $ 2,054,788 $ 936,761 $ (2,713,096 ) $ 3,034,249 LIABILITIES AND PARTNERS’ CAPITAL Liabilities: Line of credit $ 50,926 $ — $ — $ — $ 50,926 Mortgage notes payable, net of deferred financing costs — — 110,733 — 110,733 Unsecured term loan, net of deferred financing costs 249,036 — — — 249,036 Unsecured notes payable, net of discount and deferred financing costs 837,323 — — — 837,323 Accounts payable and accrued liabilities 6,477 22,319 8,113 — 36,909 Construction costs payable — 10,159 46,269 — 56,428 Accrued interest payable 11,578 — 14 — 11,592 Distribution payable 46,352 — — — 46,352 Prepaid rents and other liabilities 216 61,429 19,417 — 81,062 Total liabilities 1,201,908 93,907 184,546 — 1,480,361 Redeemable partnership units 591,101 — — — 591,101 Commitments and contingencies — — — — — Limited Partners’ Capital: Series C cumulative redeemable perpetual preferred units, 8,050,000 units issued and outstanding at December 31, 2016 201,250 — — — 201,250 Common units, 75,252,390 units issued and outstanding at December 31, 2016 754,892 1,960,881 752,215 (2,713,096 ) 754,892 General partner’s capital, 662,373 common units issued and outstanding at December 31, 2016 6,645 — — — 6,645 Total partners’ capital 962,787 1,960,881 752,215 (2,713,096 ) 962,787 Total liabilities & partners’ capital $ 2,755,796 $ 2,054,788 $ 936,761 $ (2,713,096 ) $ 3,034,249 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Three months ended June 30, 2017 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 4,727 $ 66,269 $ 26,662 $ (4,727 ) $ 92,931 Recoveries from tenants — 36,305 9,768 — 46,073 Other revenues — 409 1,297 — 1,706 Total revenues 4,727 102,983 37,727 (4,727 ) 140,710 Expenses: Property operating costs — 36,495 9,704 (4,727 ) 41,472 Real estate taxes and insurance — 3,894 1,135 — 5,029 Depreciation and amortization 49 21,771 7,128 — 28,948 General and administrative 5,940 15 321 — 6,276 Transaction expenses 7,128 — — — 7,128 Other expenses 268 8 1,031 — 1,307 Total expenses 13,385 62,183 19,319 (4,727 ) 90,160 Operating (loss) income (8,658 ) 40,800 18,408 — 50,550 Interest: Expense incurred (15,941 ) 1,345 2,803 — (11,793 ) Amortization of deferred financing costs (1,019 ) 93 132 — (794 ) Equity in earnings 63,581 — — (63,581 ) — Net income (loss) 37,963 42,238 21,343 (63,581 ) 37,963 Preferred unit distributions (3,333 ) — — — (3,333 ) Net income (loss) attributable to common units $ 34,630 $ 42,238 $ 21,343 $ (63,581 ) $ 34,630 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Three months ended June 30, 2016 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 4,538 $ 67,562 $ 15,825 $ (4,563 ) $ 83,362 Recoveries from tenants — 35,809 5,886 — 41,695 Other revenues — 412 3,090 (21 ) 3,481 Total revenues 4,538 103,783 24,801 (4,584 ) 128,538 Expenses: Property operating costs — 36,130 6,362 (4,559 ) 37,933 Real estate taxes and insurance — 4,905 935 — 5,840 Depreciation and amortization 12 22,301 4,010 — 26,323 General and administrative 5,011 28 235 — 5,274 Other expenses 865 (117 ) 2,470 (25 ) 3,193 Total expenses 5,888 63,247 14,012 (4,584 ) 78,563 Operating (loss) income (1,350 ) 40,536 10,789 — 49,975 Interest: Expense incurred (13,916 ) 123 2,230 — (11,563 ) Amortization of deferred financing costs (958 ) 6 33 — (919 ) Gain on sale of real estate 21,874 — 1,190 — 23,064 Equity in earnings 54,907 — — (54,907 ) — Net income (loss) 60,557 40,665 14,242 (54,907 ) 60,557 Preferred unit distributions (6,964 ) — — — (6,964 ) Issuance costs associated with redeemed preferred units (8,827 ) — — — (8,827 ) Net income (loss) attributable to common units $ 44,766 $ 40,665 $ 14,242 $ (54,907 ) $ 44,766 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Six months ended June 30, 2017 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 9,422 $ 132,961 $ 51,238 $ (9,422 ) $ 184,199 Recoveries from tenants — 72,398 18,970 — 91,368 Other revenues — 829 3,798 — 4,627 Total revenues 9,422 206,188 74,006 (9,422 ) 280,194 Expenses: Property operating costs — 72,410 18,675 (9,422 ) 81,663 Real estate taxes and insurance — 7,873 2,166 — 10,039 Depreciation and amortization 93 43,546 13,516 — 57,155 General and administrative 12,486 23 579 — 13,088 Transaction expenses 7,128 — — — 7,128 Other expenses 780 20 3,212 — 4,012 Total expenses 20,487 123,872 38,148 (9,422 ) 173,085 Operating (loss) income (11,065 ) 82,316 35,858 — 107,109 Interest: Expense incurred (30,811 ) 2,382 5,177 — (23,252 ) Amortization of deferred financing costs (2,037 ) 170 248 — (1,619 ) Equity in earnings 126,151 — — (126,151 ) — Net income (loss) 82,238 84,868 41,283 (126,151 ) 82,238 Preferred unit distributions (6,666 ) — — — (6,666 ) Net income (loss) attributable to common units $ 75,572 $ 84,868 $ 41,283 $ (126,151 ) $ 75,572 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Six months ended June 30, 2016 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 8,940 $ 136,928 $ 29,029 $ (9,002 ) $ 165,895 Recoveries from tenants — 70,184 10,205 — 80,389 Other revenues — 876 5,572 (45 ) 6,403 Total revenues 8,940 207,988 44,806 (9,047 ) 252,687 Expenses: Property operating costs — 71,735 11,138 (8,985 ) 73,888 Real estate taxes and insurance — 9,601 1,555 — 11,156 Depreciation and amortization 27 44,787 7,352 — 52,166 General and administrative 10,444 37 368 — 10,849 Other expenses 971 22 4,611 (62 ) 5,542 Total expenses 11,442 126,182 25,024 (9,047 ) 153,601 Operating (loss) income (2,502 ) 81,806 19,782 — 99,086 Interest: Expense incurred (28,090 ) 123 4,835 — (23,132 ) Amortization of deferred financing costs (1,911 ) 6 141 — (1,764 ) Gain on sale of real estate 21,874 — 1,190 — 23,064 Equity in earnings 107,883 — — (107,883 ) — Net income (loss) 97,254 81,935 25,948 (107,883 ) 97,254 Preferred unit distributions (13,775 ) — — — (13,775 ) Issuance costs associated with redeemed preferred units (8,827 ) — — — (8,827 ) Net income (loss) attributable to common units $ 74,652 $ 81,935 $ 25,948 $ (107,883 ) $ 74,652 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (in thousands) Six months ended June 30, 2017 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total Cash flow from operating activities Net cash (used in) provided by operating activities $ (38,620 ) $ 125,715 $ 50,248 $ — $ 137,343 Return on investment in subsidiaries 175,963 — — (175,963 ) — Net cash provided by (used in) operating activities 137,343 125,715 50,248 (175,963 ) 137,343 Cash flow from investing activities Investments in real estate – development — (168,677 ) (132,827 ) — (301,504 ) Acquisition of real estate — — (12,250 ) — (12,250 ) Investments in subsidiaries (330,131 ) — — 330,131 — Interest capitalized for real estate under development — (2,383 ) (6,512 ) — (8,895 ) Improvements to real estate — (401 ) (17 ) — (418 ) Additions to non-real estate property (127 ) (33 ) (36 ) — (196 ) Net cash (used in) provided by investing activities (330,258 ) (171,494 ) (151,642 ) 330,131 (323,263 ) Cash flow from financing activities Line of credit: Proceeds 282,432 — — — 282,432 Mortgage notes payable: Repayments — — (3,750 ) — (3,750 ) Payments of financing costs (85 ) — (25 ) — (110 ) Equity compensation payments (4,041 ) — — — (4,041 ) Parent financing — 171,494 158,637 (330,131 ) — Distribution to parent — (125,715 ) (50,248 ) 175,963 — Distributions (96,110 ) — — — (96,110 ) Net cash provided by (used in) financing activities 182,196 45,779 104,614 (154,168 ) 178,421 Net (decrease) increase in cash and cash equivalents (10,719 ) — 3,220 — (7,499 ) Cash and cash equivalents, beginning of period 31,781 — 2,628 — 34,409 Cash and cash equivalents, ending of period $ 21,062 $ — $ 5,848 $ — $ 26,910 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (in thousands) Six months ended June 30, 2016 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total Cash flow from operating activities Net cash (used in) provided by operating activities $ (30,954 ) $ 120,759 $ 34,636 $ — $ 124,441 Cash flow from investing activities Proceeds from the sale of real estate — 120,086 3,459 — 123,545 Investments in real estate – development (452 ) (43 ) (101,372 ) — (101,867 ) Land acquisition costs - related party — — (20,168 ) — (20,168 ) Investments in subsidiaries 146,000 (237,391 ) 91,391 — — Interest capitalized for real estate under development (2 ) (123 ) (5,993 ) — (6,118 ) Improvements to real estate — (3,098 ) — — (3,098 ) Additions to non-real estate property (200 ) (190 ) (36 ) — (426 ) Net cash provided by (used in) investing activities 145,346 (120,759 ) (32,719 ) — (8,132 ) Cash flow from financing activities Line of credit: Proceeds 60,000 — — — 60,000 Repayments (60,000 ) — — — (60,000 ) Mortgage notes payable: Repayments — — (1,250 ) — (1,250 ) Payments of financing costs (71 ) — (25 ) — (96 ) Issuance of common units, net of offering costs 275,720 — — — 275,720 Issuance of preferred units, net of offering costs 194,502 — — — 194,502 Redemption of preferred units (251,250 ) — — — (251,250 ) Equity compensation proceeds 8,285 — — — 8,285 Distributions (96,414 ) — — — (96,414 ) Net cash provided by (used in) financing activities 130,772 — (1,275 ) — 129,497 Net increase in cash and cash equivalents 245,164 — 642 — 245,806 Cash and cash equivalents, beginning of period 21,697 — 5,318 — 27,015 Cash and cash equivalents, ending of period $ 266,861 $ — $ 5,960 $ — $ 272,821

2. Significant Accounting Pol22

2. Significant Accounting Policies (Policies)	6 Months Ended
2. Significant Accounting Policies (Policies)	Jun. 30, 2017
Accounting Policies [Abstract]
Basis of Presentation [Text Block]	Basis of Presentation This report combines the quarterly reports on Form 10-Q for the quarter ended June 30, 2017 of DuPont Fabros Technology, Inc. and DuPont Fabros Technology, L.P. References to “DFT” mean DuPont Fabros Technology, Inc. and its controlled subsidiaries; and references to the “Operating Partnership” or “OP” mean DuPont Fabros Technology, L.P. and its controlled subsidiaries. We believe combining the quarterly reports on Form 10-Q of DFT and the Operating Partnership into this single report provides the following benefits: • enhances investors’ understanding of DFT and the Operating Partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business; • eliminates duplicative disclosure and provides a more streamlined and readable presentation since a substantial portion of the disclosure in this report applies to both DFT and the Operating Partnership; and • creates time and cost efficiencies through the preparation of one combined report instead of two separate reports. We operate DFT and the Operating Partnership as one business. The management of DFT consists of the same employees as the management of the Operating Partnership. We believe it is important for investors to understand the few differences between DFT and the Operating Partnership in the context of how DFT and the Operating Partnership operate as a consolidated company. DFT is a REIT, whose only material asset is its ownership of OP units of the Operating Partnership. As a result, DFT does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public equity from time to time and guaranteeing unsecured debt of the Operating Partnership. DFT has not issued any indebtedness, but has guaranteed all of the unsecured debt of the Operating Partnership. The Operating Partnership, through its wholly-owned subsidiaries, holds all the real estate assets of the Company. Except for net proceeds from public equity issuances by DFT, which are contributed to the Operating Partnership in exchange for OP units or preferred units, the Operating Partnership generates all remaining capital required by our business. These sources include the Operating Partnership’s operations, its direct or indirect incurrence of indebtedness, and the issuance of partnership units. As sole general partner with control of the Operating Partnership, DFT consolidates the Operating Partnership for financial reporting purposes. The presentation of stockholders’ equity and partners’ capital are the main areas of difference between the consolidated financial statements of DFT and those of the Operating Partnership. The Operating Partnership’s capital includes preferred units and general and limited common units that are owned by DFT and the other partners. DFT’s stockholders’ equity includes preferred stock, common stock, additional paid in capital, retained earnings and accumulated other comprehensive income (loss). The common limited partnership interests held by the limited partners (other than DFT) in the Operating Partnership are presented as “redeemable partnership units” in the Operating Partnership’s consolidated financial statements and as “redeemable noncontrolling interests-operating partnership” in DFT’s consolidated financial statements. The only difference between the assets and liabilities of DFT and the Operating Partnership as of June 30, 2017 was a $4.2 million bank account held by DFT that is not part of the Operating Partnership. Net income is the same for DFT and the Operating Partnership. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In our opinion, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. All significant intercompany accounts and transactions have been eliminated in the accompanying consolidated financial statements. The results of operations for the six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the full year. These consolidated financial statements should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations contained elsewhere in this Form 10-Q and the audited financial statements and accompanying notes for the year ended December 31, 2016 contained in our Annual Report on Form 10-K, which contains a complete listing of our significant accounting policies. We have one reportable segment consisting of investments in data centers located in the United States and Canada. All of our properties generate similar types of revenues and expenses related to customer rent and reimbursements and operating expenses. The delivery of our products is consistent across all properties and although services are provided to a range of customers, the types of services provided to them are limited to a few core principles. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services provided to our customers and the method to distribute such services are consistent throughout the portfolio.
Use of Estimates [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Property [Policy Text Block]	Property Depreciation on buildings is generally provided on a straight-line basis over 40 years from the date the buildings were placed in service. Building components are depreciated over the life of the respective improvement ranging from 10 to 40 years from the date the components were placed in service. Personal property is depreciated over three to seven years . Depreciation expense was $27.9 million and $25.3 million for the three months ended June 30, 2017 and 2016 , respectively, and $55.0 million and $50.0 million for the six months ended June 30, 2017 and 2016 , respectively. Repairs and maintenance costs are expensed as incurred. We review each of our properties for indicators of impairment. Examples of such indicators may include a significant decrease in the market price of the property, a significant adverse change in the extent or manner in which the property is being used in its physical condition, a significant adverse change in legal factors or in the business climate that could affect the value of a property, including an adverse action or assessment by a regulator, an accumulation of costs significantly in excess of the amount originally expected for the development of a property, a history of operating or cash flow losses of the property or a current expectation that, more likely than not, a property will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. When such impairment indicators exist, we review an estimate of the future undiscounted net cash flows expected to result from the real estate investment’s use and eventual disposition and compare that estimate to the carrying value of the property. We assess the recoverability of the carrying value of our assets on a property-by-property basis. We consider factors such as future operating income, trends and prospects, as well as the effects of leasing demand, competition, potential sales proceeds and other factors. If our undiscounted cash flow evaluation indicates that we are unable to recover the carrying value of a real estate investment, an impairment loss is recorded to the extent that the carrying value exceeds the estimated fair value of the property. No impairment losses were recorded during the six months ended June 30, 2017 and 2016 . We classify a data center property as held-for-sale when it meets the necessary criteria, which include when we commit to and actively embark on a plan to sell the asset, the sale is expected to be completed within one year under terms usual and customary for such sales, and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. Data center properties held-for-sale are carried at the lower of cost or fair value less costs to sell. As of June 30, 2017 and December 31, 2016 , we did not have any properties classified as held-for-sale.
Deferred Costs [Policy Text Block]	Deferred Costs Deferred costs, net in our accompanying consolidated balance sheets include both financing and leasing costs. Financing costs, which represent fees and other costs incurred in obtaining debt, are amortized using the effective-interest rate method, or a method that approximates the effective-interest method, over the term of the loan and are included in amortization of deferred financing costs. Balances of financing costs for our unsecured revolving credit facility, or Unsecured Credit Facility, net of accumulated amortization, which are presented within deferred costs, net in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented within deferred costs, net June 30, December 31, Financing costs $ 12,353 $ 12,352 Accumulated amortization (7,224 ) (6,376 ) Financing costs, net $ 5,129 $ 5,976 Balances of financing costs for our other recognized debt liabilities, net of accumulated amortization, which are presented as a reduction of each of the respective recognized debt liabilities in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented as a reduction of debt liability balances June 30, December 31, Financing costs $ 20,470 $ 20,423 Accumulated amortization (9,309 ) (7,935 ) Financing costs, net $ 11,161 $ 12,488 Leasing costs, which consist of external fees and costs incurred in the successful negotiation of leases, internal costs expended in the successful negotiation of leases and the estimated leasing commissions resulting from the allocation of the purchase price of ACC2, VA3, VA4 and ACC4, are deferred and amortized over the terms of the applicable leases on a straight-line basis. If an applicable lease terminates prior to the expiration of its initial term, the carrying amount of the leasing costs are written off to amortization expense. Leasing costs incurred for the three and six months ended June 30, 2017 and 2016 were as follows (in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Leasing costs incurred for new leases $ 614 $ 1,670 $ 890 $ 3,270 Leasing costs incurred for renewals — 184 — 195 Total leasing costs incurred $ 614 $ 1,854 $ 890 $ 3,465 Amortization of deferred leasing costs totaled $1.0 million and $1.1 million for the three months ended June 30, 2017 and 2016 , respectively, and $2.1 million for both the six months ended June 30, 2017 and 2016 , respectively. Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Leasing costs $ 54,446 $ 53,556 Accumulated amortization (35,904 ) (33,756 ) Leasing costs, net $ 18,542 $ 19,800
Inventory [Policy Text Block]	Inventory We maintain fuel inventory for our generators, which is recorded at the lower of cost (on a first-in, first-out basis) or market. As of June 30, 2017 and December 31, 2016 , the fuel inventory was $4.3 million and $4.2 million , respectively, and is included in prepaid expenses and other assets in the accompanying consolidated balance sheets.
Rental Income [Policy Text Block]	Rental Income We, as a lessor, have retained substantially all the risks and benefits of ownership and account for our leases as operating leases. For lease agreements that provide for scheduled fixed and determinable rent increases, rental income is recognized on a straight-line basis over the non-cancellable term of the lease, which commences when control of the space and critical power have been provided to the customer. If the lease contains an early termination clause with a penalty payment, we determine the lease termination date by evaluating whether the penalty reasonably assures that the lease will not be terminated early. Straight-line rents receivable are included in deferred rent, net in the accompanying consolidated balance sheets. Lease inducements, which include cash payments to customers, are amortized as a reduction of rental income over the non-cancellable lease term. Lease inducements are included in prepaid expenses and other assets in the accompanying consolidated balance sheets. Lease intangible assets and liabilities that have resulted from above-market and below-market leases that were acquired are amortized on a straight-line basis as decreases and increases, respectively, to rental revenue over the remaining non-cancellable term of the underlying leases. If a lease terminates prior to the expiration of its initial term, the unamortized portion of straight-line rents receivable, lease inducements and lease intangibles associated with that lease will be written off to rental revenue. Lease contracts above market value, net are included in prepaid expenses and other assets and lease contracts below market value, net are included in prepaid rents and other liabilities in the accompany consolidated balance sheets. Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Lease contracts above market value $ 18,900 $ 20,500 Accumulated amortization (14,290 ) (15,362 ) Lease contracts above market value, net $ 4,610 $ 5,138 Lease contracts below market value $ 13,575 $ 24,175 Accumulated amortization (11,638 ) (21,345 ) Lease contracts below market value, net $ 1,937 $ 2,830 Our policy is to record an allowance for losses on accounts receivable equal to the estimated uncollectible accounts. The estimate is based on our historical experience and a review of the current status of our receivables. As of June 30, 2017 and December 31, 2016 , we had a note receivable from a former customer of $24.9 million and $25.0 million , respectively, which resulted from the settlement of our claim in this former customer's bankruptcy proceedings in the fourth quarter of 2016. We are accounting for the note receivable on a non-accrual basis. As of June 30, 2017 and December 31, 2016 , we had an allowance for this note receivable of $23.6 million , leaving a note receivable, net balance of $1.3 million and $1.4 million as of June 30, 2017 and December 31, 2016 , respectively, which is included within rents and other receivables, net in our accompanying consolidated balance sheets. Based on the principal payment schedule in the note that includes semiannual principal payments beginning in June 2017, which we received, we continue to be reasonably assured that we will be able to collect the balance of the net note receivable. We also establish an appropriate allowance for doubtful accounts for receivables arising from the straight-lining of rents. These receivables arise from revenue recognized in excess of amounts currently due under the lease and are recorded as deferred rent in the accompanying consolidated balance sheets. As of June 30, 2017 and December 31, 2016 , we had no material allowances. Our customer leases generally contain provisions under which the customers reimburse us for a portion of operating expenses and real estate taxes incurred by the property. Recoveries from tenants are included in revenue in the accompanying consolidated statements of operations in the period the applicable expenditures are incurred. The majority of our customer leases also provide us with a property management fee based on a percentage of base rent collected and property-level operating expenses, other than charges for power used by customers to run their servers and cool their space. Property management fees are included in base rent in the accompanying consolidated statements of operations in the applicable period in which they are earned.
Other Revenue [Policy Text Block]	Other Revenue Other revenue primarily consists of services provided to customers on a non-recurring basis. This includes projects such as the purchase and installation of circuits, racks, circuit breakers and other customer requested items. Revenue is recognized on a completed contract basis when the project is finished and ready for the customer's use. This method is consistently applied for all periods presented. Costs of providing these services are included in other expenses in the accompanying consolidated statements of operations.
Redeemable Noncontrolling Interests—Operating Partnership / Redeemable Partnership Units [Policy Text Block]	Redeemable Noncontrolling Interests – Operating Partnership / Redeemable Partnership Units Redeemable noncontrolling interests – operating partnership, as presented on DFT’s consolidated balance sheets, represent the OP units held by individuals and entities other than DFT. These interests are also presented on the Operating Partnership’s consolidated balance sheets, referred to as “redeemable partnership units.” Accordingly, the following discussion related to redeemable noncontrolling interests – operating partnership of DFT refers equally to redeemable partnership units of the Operating Partnership. Redeemable noncontrolling interests – operating partnership, which require cash payment, or allow settlement in shares, but with the ability to deliver the shares outside of the control of DFT, are reported outside of the permanent equity section of the consolidated balance sheets of DFT and the Operating Partnership. Redeemable noncontrolling interests – operating partnership are adjusted for income, losses and distributions allocated to OP units not held by DFT (normal noncontrolling interest accounting amount). Adjustments to redeemable noncontrolling interests – operating partnership are recorded to reflect increases or decreases in the ownership of the Operating Partnership by holders of OP units, including the redemptions of OP units for cash or in exchange for shares of DFT’s common stock. If such adjustments result in redeemable noncontrolling interests – operating partnership being recorded at less than the redemption value of the OP units, redeemable noncontrolling interests – operating partnership are further adjusted to their redemption value. See Note 6. Redeemable noncontrolling interests – operating partnership are recorded at the greater of the normal noncontrolling interest accounting amount or redemption value. The following is a summary of activity for redeemable noncontrolling interests – operating partnership for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Net income attributable to redeemable noncontrolling interests – operating partnership — 10,218 Other comprehensive income attributable to redeemable noncontrolling interests – operating partnership - foreign currency translation adjustments — 17 Distributions declared — (11,682 ) Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable noncontrolling interests – operating partnership — 202,734 Balance at June 30, 2017 11,682,368 $ 714,494 The following is a summary of activity for redeemable partnership units for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable partnership units — 201,287 Balance at June 30, 2017 11,682,368 $ 714,494 Net income is allocated to controlling interests and redeemable noncontrolling interests – operating partnership in accordance with the limited partnership agreement of the Operating Partnership. The following is a summary of net income attributable to controlling interests and transfers to redeemable noncontrolling interests – operating partnership for the three and six months ended June 30, 2017 and 2016 (dollars in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Net income attributable to controlling interests $ 33,457 $ 53,090 $ 72,020 $ 84,309 Transfers from noncontrolling interests: Net change in the Company’s common stock and additional paid in capital due to the redemption of OP units and other adjustments to redeemable noncontrolling interests – operating partnership (136,486 ) (52,476 ) (124,840 ) (177,957 ) $ (103,029 ) $ 614 $ (52,820 ) $ (93,648 )
Earnings Per Share of the REIT [Policy Text Block]	Earnings Per Share of DFT Basic earnings per share is calculated by dividing the net income attributable to common shares for the period by the weighted average number of common shares outstanding during the period using the two class method. Diluted earnings per share is calculated by dividing the net income attributable to common shares for the period by the weighted average number of common and dilutive securities outstanding during the period using the two class method.
Earnings Per Unit of the Operating Partnership [Policy Text Block]	Earnings Per Unit of the Operating Partnership Basic earnings per unit is calculated by dividing the net income attributable to common units for the period by the weighted average number of common units outstanding during the period using the two class method. Diluted earnings per unit is calculated by dividing the net income attributable to common units for the period by the weighted average number of common and dilutive securities outstanding during the period using the two class method.
Stock-based Compensation [Policy Text Block]	Stock-based Compensation We periodically award stock-based compensation to employees and members of our Board of Directors in the form of common stock, restricted common stock, options and performance units. For each common stock award granted by DFT, the OP issues an equivalent common unit, which may be referred to herein as a common share, common stock, or a common unit. We estimate the fair value of the awards and recognize this value over the requisite service period. The fair value of restricted stock-based compensation is based on the market value of DFT’s common stock on the date of the grant. The fair value of options to purchase common stock is based on the Black-Scholes model. The fair value of performance units is based on a Monte Carlo simulation.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency The U.S. dollar is the functional currency of our consolidated operations in the United States. The functional currency of our consolidated entities outside of the United States is the principal currency of the economic environment in which the entity primarily generates and expends cash. We translate the financial statements of consolidated entities whose functional currency is not the U.S. dollar into U.S. dollars. We translate assets and liabilities at the exchange rate in effect as of the financial statement date and translate income statement accounts using the weighted average exchange rate for the period. We include foreign currency translation adjustments and the effect of exchange rate changes on intercompany transactions of a long-term investment nature as a separate component of stockholders' equity or partners' capital. We report gains and losses from the effect of rate changes on intercompany receivables and payables that are not of a long-term investment nature, as well as gains and losses from remeasuring U.S. dollar transactions for non-U.S. functional currency entities, in other expenses on our consolidated statements of operations. For the three and six months ended June 30, 2017 and 2016 , we had no material foreign currency transaction losses.
Recently Issued Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Pronouncements Revenue Recognition - In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standard Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606). The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. We are required to apply the new standard in the first quarter of 2018 and expect to elect the modified retrospective method of application of the standard. Although the standard does not apply to leases, we have assessed the impact on our financial position and results of operations. The standard will change our method of recognizing revenue on service and installation contracts included in other revenue in the accompanying consolidated statements of operations from the completed contract method to a method that recognizes revenue over the course of the contract based on the goods or services transferred to date relative to the remaining goods or services promised under the contract. We do not expect that this change will have a material effect on our financial position or results of operations. In addition, we currently do not believe the standard will have a material impact on how we recognize revenues from tenants with respect to operating expense recoveries on our financial position or results of operations. Leases - In February 2016, the FASB issued ASU No. 2016-02 - Leases (Topic 842). We are required to apply the new standard in the first quarter of 2019. The Company’s leases consist of both lease components that will be accounted for under this standard and non-lease components such as operating expense recovery income that will be accounted for under ASU 2014-09, Revenue from Contracts with Customers. The standard does not fundamentally change the lessor accounting model, and we do not believe that the new standard will have a material effect on our financial position or results of operations. Financial Instruments - In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. Under this guidance, a company will be required to use a new forward-looking "expected loss" model for trade and other receivables that generally will result in the earlier recognition of allowances for losses. We are required to apply the new standard in the first quarter of 2020 and do not believe that the new standard will have a material effect on our financial position or results of operations. Statement of Cash Flows - In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments. The standard provides guidance on eight specific cash flow classification issues including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. We are required to apply the new standard in the first quarter of 2018 and do not believe that the new standard will have a material effect on our financial position or results of operations. Statement of Cash Flows - Restricted Cash - In November 2016, the FASB issued ASU No. 2016-18 (Topic 230), Restricted Cash. The standard requires restricted cash to be included with cash and cash equivalents when reconciling the beginning and ending amounts in the statement of cash flows. We are required to apply the new standard in the first quarter of 2018 and do not believe that the new standard will have a material effect on our financial position or results of operations. Business Combinations - In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The standard narrows the existing definition of a business and provides a framework for evaluating whether a transaction should be accounted for as an acquisition of assets or a business. The guidance is effective for public entities for fiscal years beginning after December 15, 2017 and interim periods within those years. We early-adopted the standard effective January 1, 2017. As a result of this new guidance, acquisitions may now result in an asset purchase rather than a business combination. We do not believe that the new standard will have a material effect on our financial position or results of operations.
Reclassifications [Text Block]	Reclassifications We have combined the previously reported line item for lease contracts above market value, net into the prepaid expenses and other assets line item in the accompanying consolidated balance sheet as of December 31, 2016 to conform to the current year presentation. We have also combined the previously reported line item for lease contracts below market value, net into the prepaid rents and other liabilities line item in the accompanying consolidated balance sheet as of December 31, 2016 to conform to the current year presentation.

2. Significant Accounting Pol23

2. Significant Accounting Policies (Tables)	6 Months Ended
2. Significant Accounting Policies (Tables)	Jun. 30, 2017
Accounting Policies [Abstract]
Schedule of Deferred Financing Costs [Table Text Block]	Balances of financing costs for our unsecured revolving credit facility, or Unsecured Credit Facility, net of accumulated amortization, which are presented within deferred costs, net in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented within deferred costs, net June 30, December 31, Financing costs $ 12,353 $ 12,352 Accumulated amortization (7,224 ) (6,376 ) Financing costs, net $ 5,129 $ 5,976 Balances of financing costs for our other recognized debt liabilities, net of accumulated amortization, which are presented as a reduction of each of the respective recognized debt liabilities in our accompanying consolidated balance sheets at June 30, 2017 and December 31, 2016 were as follows (in thousands): Financing costs presented as a reduction of debt liability balances June 30, December 31, Financing costs $ 20,470 $ 20,423 Accumulated amortization (9,309 ) (7,935 ) Financing costs, net $ 11,161 $ 12,488
Schedule of Leasing Costs Incurred [Table Text Block]	Leasing costs incurred for the three and six months ended June 30, 2017 and 2016 were as follows (in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Leasing costs incurred for new leases $ 614 $ 1,670 $ 890 $ 3,270 Leasing costs incurred for renewals — 184 — 195 Total leasing costs incurred $ 614 $ 1,854 $ 890 $ 3,465
Schedule of Deferred Leasing Costs [Table Text Block]	Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Leasing costs $ 54,446 $ 53,556 Accumulated amortization (35,904 ) (33,756 ) Leasing costs, net $ 18,542 $ 19,800
Schedule of Lease Intangibles Above and Below Market Value [Table Text Block]	Balances, net of accumulated amortization, at June 30, 2017 and December 31, 2016 were as follows (in thousands): June 30, December 31, Lease contracts above market value $ 18,900 $ 20,500 Accumulated amortization (14,290 ) (15,362 ) Lease contracts above market value, net $ 4,610 $ 5,138 Lease contracts below market value $ 13,575 $ 24,175 Accumulated amortization (11,638 ) (21,345 ) Lease contracts below market value, net $ 1,937 $ 2,830
Redeemable Noncontrolling Interest [Table Text Block]	The following is a summary of activity for redeemable noncontrolling interests – operating partnership for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Net income attributable to redeemable noncontrolling interests – operating partnership — 10,218 Other comprehensive income attributable to redeemable noncontrolling interests – operating partnership - foreign currency translation adjustments — 17 Distributions declared — (11,682 ) Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable noncontrolling interests – operating partnership — 202,734 Balance at June 30, 2017 11,682,368 $ 714,494
Redeemable Partnership Units [Table Text Block]	The following is a summary of activity for redeemable partnership units for the six months ended June 30, 2017 (dollars in thousands): OP Units Number Amount Balance at December 31, 2016 13,455,515 $ 591,101 Redemption of operating partnership units (1,773,147 ) (77,894 ) Adjustments to redeemable partnership units — 201,287 Balance at June 30, 2017 11,682,368 $ 714,494
Schedule of Net Income Attributable to Controlling Interests and Transfers From Redeemable Noncontrolling Interests Operating Partnership [Table Text Block]	The following is a summary of net income attributable to controlling interests and transfers to redeemable noncontrolling interests – operating partnership for the three and six months ended June 30, 2017 and 2016 (dollars in thousands): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Net income attributable to controlling interests $ 33,457 $ 53,090 $ 72,020 $ 84,309 Transfers from noncontrolling interests: Net change in the Company’s common stock and additional paid in capital due to the redemption of OP units and other adjustments to redeemable noncontrolling interests – operating partnership (136,486 ) (52,476 ) (124,840 ) (177,957 ) $ (103,029 ) $ 614 $ (52,820 ) $ (93,648 )

3. Real Estate Assets (Tables)

3. Real Estate Assets (Tables)	6 Months Ended
3. Real Estate Assets (Tables)	Jun. 30, 2017
Real Estate [Abstract]
Schedule of Real Estate Properties [Table Text Block]	The following is a summary of our properties as of June 30, 2017 (dollars in thousands): Property Location Land Buildings and Improvements Construction in Progress and Land Held for Development Total Cost (2) ACC2 Ashburn, VA $ 2,500 $ 156,591 $ 159,091 ACC3 Ashburn, VA 1,071 96,080 97,151 ACC4 Ashburn, VA 6,600 538,869 545,469 ACC5 Ashburn, VA 6,443 299,016 305,459 ACC6 Ashburn, VA 5,518 216,829 222,347 ACC7 Ashburn, VA 9,753 335,490 345,243 ACC9 Phase I Ashburn, VA 4,235 119,573 123,808 CH1 Elk Grove Village, IL 21,025 359,171 380,196 CH2 Elk Grove Village, IL 14,392 256,910 271,302 SC1 Phases I-II Santa Clara, CA 20,202 433,099 453,301 VA3 Reston, VA 9,000 179,860 188,860 VA4 Bristow, VA 6,800 149,614 156,414 107,539 3,141,102 — 3,248,641 Construction in progress and land held for development (1) 551,258 551,258 $ 107,539 $ 3,141,102 $ 551,258 $ 3,799,899 (1) Properties located in Ashburn, VA (ACC8, ACC9 Phase II, ACC10, and ACC11), Elk Grove Village, IL (CH3), Santa Clara, CA (SC1 Phase III), Hillsboro, OR (OR1 and OR2), Vaughan, ON (TOR1) and Mesa, AZ (PHX1 and PHX2). (2) As of June 30, 2017 , the total cost of long-lived assets located in the United States totaled $3,701.6 million , and the total costs of long-lived assets located in Canada totaled $98.3 million (TOR1 in Vaughan, ON).

4. Debt (Tables)

4. Debt (Tables)	6 Months Ended
4. Debt (Tables)	Jun. 30, 2017
Debt Instrument [Line Items]
Schedule of Debt [Table Text Block]	Debt Summary as of June 30, 2017 and December 31, 2016 ($ in thousands) June 30, 2017 December 31, 2016 Amounts (1) % of Total Rates Maturities (years) Amounts Secured $ 107,500 7 % 2.8 % 0.7 $ 111,250 Unsecured 1,435,997 93 % 4.5 % 4.3 1,150,926 Total $ 1,543,497 100 % 4.4 % 4.1 $ 1,262,176 Fixed Rate Debt: Unsecured Notes due 2021 $ 600,000 39 % 5.9 % 4.2 $ 600,000 Unsecured Notes due 2023 (2) 250,000 16 % 5.6 % 6.0 250,000 Fixed Rate Debt $ 850,000 55 % 5.8 % 4.7 $ 850,000 Floating Rate Debt: Unsecured Credit Facility 335,997 22 % 2.7 % 3.1 50,926 Unsecured Term Loan 250,000 16 % 2.7 % 4.6 250,000 ACC3 Term Loan 107,500 7 % 2.8 % 0.7 111,250 Floating Rate Debt 693,497 45 % 2.7 % 3.2 412,176 Total $ 1,543,497 100 % 4.4 % 4.1 $ 1,262,176 (1) Principal amounts exclude deferred financing costs. (2) Principal amount excludes original issue discount of $1.6 million
Schedule of Maturities of Long-term Debt [Table Text Block]	A summary of our debt maturity schedule as of June 30, 2017 is as follows: Debt Maturity as of June 30, 2017 ($ in thousands) Year Fixed Rate (1) Floating Rate (1) Total (1) % of Total Rates 2017 $ — $ 5,000 (4) $ 5,000 0.3 % 2.8 % 2018 — 102,500 (4) 102,500 6.6 % 2.8 % 2019 — — — — % — % 2020 — 335,997 (5) 335,997 21.8 % 2.7 % 2021 600,000 (2) — 600,000 38.9 % 5.9 % 2022 — 250,000 (6) 250,000 16.2 % 2.7 % 2023 250,000 (3) — 250,000 16.2 % 5.6 % Total $ 850,000 $ 693,497 $ 1,543,497 100.0 % 4.4 % (1) Principal amounts exclude deferred financing costs. (2) The 5.875% Unsecured Notes due 2021 mature on September 15, 2021 . (3) The 5.625% Unsecured Notes due 2023 mature on June 15, 2023 . Principal amount excludes original issue discount of $1.6 million as of June 30, 2017 . (4) The ACC3 Term Loan matures on March 27, 2018 with no extension option. Quarterly principal payments of $1.25 million began on April 1, 2016 , increased to $2.5 million on April 1, 2017 and continue through maturity. (5) The Unsecured Credit Facility matures on July 25, 2020 with a one-year extension option. (6) The Unsecured Term Loan matures on January 21, 2022 with no extension option.
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Schedule Of Line of Credit Interest Rate Margin Applicable By Indebtedness Level [Table Text Block]	Prior to our receiving an investment grade credit rating, the applicable margin added to LIBOR and the base rate is based on the table below. Applicable Margin Pricing Level Ratio of Total Indebtedness to Gross Asset Value LIBOR Rate Loans Base Rate Loans Level 1 Less than or equal to 35% 1.55 % 0.55 % Level 2 Greater than 35% but less than or equal to 40% 1.65 % 0.65 % Level 3 Greater than 40% but less than or equal to 45% 1.80 % 0.80 % Level 4 Greater than 45% but less than or equal to 52.5% 1.95 % 0.95 % Level 5 Greater than 52.5% 2.15 % 1.15 %
Schedule Of Credit Rating Of Unsecured Notes for Line of Credit [Table Text Block]	In the event we receive an investment grade credit rating, borrowings under the Unsecured Credit Facility will bear interest based on the table below. Applicable Margin Credit Rating Level Credit Rating LIBOR Rate Loans Base Rate Loans Level 1 Greater than or equal to A- by S&P or A3 by Moody’s 0.85 % 0.00 % Level 2 Greater than or equal to BBB+ by S&P or Baa1 by Moody’s 0.90 % 0.00 % Level 3 Greater than or equal to BBB by S&P or Baa2 by Moody’s 1.00 % 0.00 % Level 4 Greater than or equal to BBB- by S&P or Baa3 by Moody’s 1.20 % 0.20 % Level 5 Less than BBB- by S&P or Baa3 by Moody’s 1.55 % 0.55 %
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Schedule Of Term Loan Interest Rate Margin Applicable By Indebtedness Level [Table Text Block]	Prior to our receiving an investment grade credit rating, the applicable margin added to LIBOR and the base rate is based on the table below. Applicable Margin Pricing Level Ratio of Total Indebtedness to Gross Asset Value LIBOR Rate Loans Base Rate Loans Level 1 Less than or equal to 35% 1.50 % 0.50 % Level 2 Greater than 35% but less than or equal to 40% 1.60 % 0.60 % Level 3 Greater than 40% but less than or equal to 45% 1.75 % 0.75 % Level 4 Greater than 45% but less than or equal to 52.5% 1.90 % 0.90 % Level 5 Greater than 52.5% 2.10 % 1.10 %
Schedule Of Credit Rating For Unsecured Term Loan [Table Text Block]	The terms of the Unsecured Term Loan also provide that, in the event we receive an investment grade credit rating, borrowings under the loan will bear interest based on the table below. Applicable Margin Credit Rating Level Credit Rating LIBOR Rate Loans Base Rate Loans Level 1 Greater than or equal to A- by S&P or A3 by Moody’s 0.825 % 0.00 % Level 2 Greater than or equal to BBB+ by S&P or Baa1 by Moody’s 0.875 % 0.00 % Level 3 Greater than or equal to BBB by S&P or Baa2 by Moody’s 1.00 % 0.00 % Level 4 Greater than or equal to BBB- by S&P or Baa3 by Moody’s 1.25 % 0.25 % Level 5 Less than BBB- by S&P or Baa3 by Moody’s 1.65 % 0.65 %
Unsecured Notes due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption [Table Text Block]	The Unsecured Notes due 2021 may be redeemed at the Operating Partnership's option, in whole or in part, at any time, at the following redemption prices (expressed as percentages of the principal amount thereof) if redeemed during the 12-month period commencing September 15 of the years indicated below, in each case together with accrued and unpaid interest to the date of redemption: Year Redemption Price 2016 104.406 % 2017 102.938 % 2018 101.469 % 2019 and thereafter 100.000 %
Unsecured Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption [Table Text Block]	The Unsecured Notes due 2023 may be redeemed at the Operating Partnership's option, in whole or in part, at any time, on and after June 15, 2018 at the following redemption prices (expressed as percentages of the principal amount thereof) if redeemed during the 12-month period commencing June 15 of the years indicated below, in each case together with accrued and unpaid interest to the date of redemption: Year Redemption Price 2018 104.219 % 2019 102.813 % 2020 101.406 % 2021 and thereafter 100.000 %

9. Equity Compensation Plan (Ta

9. Equity Compensation Plan (Tables)	6 Months Ended
9. Equity Compensation Plan (Tables)	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]	The following table sets forth the number of unvested shares of restricted stock and the weighted average fair value of these shares at the date of grant: Shares of Restricted Stock Weighted Average Fair Value at Date of Grant Unvested balance at December 31, 2016 309,175 $ 32.30 Granted 174,319 47.41 Vested (123,606 ) 30.00 Forfeited (10,403 ) 37.08 Unvested balance at June 30, 2017 349,485 $ 40.03
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	A summary of our stock option activity for the six months ended June 30, 2017 is presented in the tables below. Number of Options Weighted Average Exercise Price Under option, December 31, 2016 751,479 $ 15.83 Granted — — Exercised — — Forfeited — — Under option, June 30, 2017 751,479 $ 15.83 Shares Subject to Option Total Unearned Compensation Weighted Average Remaining Contractual Term As of June 30, 2017 751,479 $ — 3.2 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]	The following tables set forth the number of exercisable options as of June 30, 2017 and the weighted average fair value and exercise price of these options at the grant date. Number of Options Weighted Average Fair Value at Date of Grant Options Exercisable at December 31, 2016 751,479 $ 4.71 Vested — — Exercised — — Options Exercisable at June 30, 2017 751,479 $ 4.71 Exercisable Options Intrinsic Value Weighted Average Exercise Price Weighted Average Remaining Contractual Term As of June 30, 2017 751,479 $ 34.1 million $ 15.83 3.2 years
Schedule of Share-based Payment Award, Performance Units, Valuation Assumptions [Table Text Block]	The following table summarizes the assumptions used to value, and the resulting fair and maximum values of, the performance units granted during the six months ended June 30, 2017 . Assumptions Number of performance units granted 69,610 Expected volatility 24 % Expected annual dividend 4.23 % Risk-free rate 1.50 % Performance unit fair value at date of grant $ 73.46 Total grant fair value at date of grant $5.1 million Maximum value of grant on vesting date based on closing price of DFT's stock at the date of grant $9.9 million
Schedule of Nonvested Performance-based Units Activity [Table Text Block]	A summary of our performance unit activity for the six months ended June 30, 2017 is presented in the table below. Number of Performance Units Weighted Average Fair Value at Date of Grant Unvested balance at December 31, 2016 196,652 $ 37.25 Granted 69,610 73.46 Vested (40,277 ) 33.94 Forfeited (5,812 ) 56.00 Unvested balance at June 30, 2017 220,173 $ 48.81

10. Earnings Per Share of the27

10. Earnings Per Share of the REIT (Tables)	6 Months Ended
10. Earnings Per Share of the REIT (Tables)	Jun. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table sets forth the reconciliation of basic and diluted average shares outstanding and net income attributable to common shares used in the computation of earnings per share of common stock (in thousands except for share and per share amounts): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Basic and Diluted Shares Outstanding Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Effect of dilutive securities 1,001,676 861,057 991,329 857,089 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Calculation of Earnings per Share – Basic Net income attributable to common shares $ 30,124 $ 37,299 $ 65,354 $ 61,707 Net income allocated to unvested restricted shares (175 ) (157 ) (351 ) (312 ) Net income attributable to common shares, adjusted 29,949 37,142 65,003 61,395 Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Earnings per common share – basic $ 0.39 $ 0.50 $ 0.84 $ 0.87 Calculation of Earnings per Share – Diluted Net income attributable to common shares, adjusted $ 29,949 $ 37,142 $ 65,003 $ 61,395 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Earnings per common share – diluted $ 0.38 $ 0.49 $ 0.83 $ 0.86
Schedule of exclusions from diluted earnings per share/unit [Table Text Block]	The following table sets forth the number of performance units that have been excluded from the calculation of diluted earnings per share as their effect would have been antidilutive (in millions): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Performance Units 0.1 0.1 0.1 0.1

11. Earnings Per Unit of the 28

11. Earnings Per Unit of the Operating Partnership (Tables)	6 Months Ended
11. Earnings Per Unit of the Operating Partnership (Tables)	Jun. 30, 2017
Earnings per unit of the Operating Partnership [Line Items]
Schedule of basic and diluted units outstanding [Table Text Block]	The following table sets forth the reconciliation of basic and diluted average shares outstanding and net income attributable to common shares used in the computation of earnings per share of common stock (in thousands except for share and per share amounts): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Basic and Diluted Shares Outstanding Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Effect of dilutive securities 1,001,676 861,057 991,329 857,089 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Calculation of Earnings per Share – Basic Net income attributable to common shares $ 30,124 $ 37,299 $ 65,354 $ 61,707 Net income allocated to unvested restricted shares (175 ) (157 ) (351 ) (312 ) Net income attributable to common shares, adjusted 29,949 37,142 65,003 61,395 Weighted average common shares – basic 77,486,297 74,370,577 77,080,615 70,661,406 Earnings per common share – basic $ 0.39 $ 0.50 $ 0.84 $ 0.87 Calculation of Earnings per Share – Diluted Net income attributable to common shares, adjusted $ 29,949 $ 37,142 $ 65,003 $ 61,395 Weighted average common shares – diluted 78,487,973 75,231,634 78,071,944 71,518,495 Earnings per common share – diluted $ 0.38 $ 0.49 $ 0.83 $ 0.86
Schedule of exclusions from diluted earnings per share/unit [Table Text Block]	The following table sets forth the number of performance units that have been excluded from the calculation of diluted earnings per share as their effect would have been antidilutive (in millions): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Performance Units 0.1 0.1 0.1 0.1
DuPont Fabros Technology, L.P. [Member]
Earnings per unit of the Operating Partnership [Line Items]
Schedule of basic and diluted units outstanding [Table Text Block]	The following table sets forth the reconciliation of basic and diluted average units outstanding and net income attributable to common units used in the computation of earnings per unit (in thousands except for unit and per unit amounts): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Basic and Diluted Units Outstanding Weighted average common units – basic (includes redeemable partnership units and units of general and limited partners) 89,168,665 88,977,907 89,132,366 85,483,976 Effect of dilutive securities 1,001,676 861,057 991,329 857,089 Weighted average common units – diluted 90,170,341 89,838,964 90,123,695 86,341,065 Calculation of Earnings per Unit – Basic Net income attributable to common units $ 34,630 $ 44,766 $ 75,572 $ 74,652 Net income allocated to unvested restricted units (175 ) (159 ) (351 ) (312 ) Net income attributable to common units, adjusted 34,455 44,607 75,221 74,340 Weighted average common units – basic 89,168,665 88,977,907 89,132,366 85,483,976 Earnings per common unit – basic $ 0.39 $ 0.50 $ 0.84 $ 0.87 Calculation of Earnings per Unit – Diluted Net income attributable to common units, adjusted $ 34,455 $ 44,607 $ 75,221 $ 74,340 Weighted average common units – diluted 90,170,341 89,838,964 90,123,695 86,341,065 Earnings per common unit – diluted $ 0.38 $ 0.49 $ 0.83 $ 0.86
Schedule of exclusions from diluted earnings per share/unit [Table Text Block]	The following table sets forth the amount of performance units that have been excluded from the calculation of diluted earnings per unit as their effect would have been antidilutive (in millions): Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Performance Units 0.1 0.1 0.1 0.1

13. Supplemental Consolidatin29

13. Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes (Tables)	6 Months Ended
	Jun. 30, 2017
Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes [Abstract]
Schedule of Supplemental Consolidating Balance Sheets [Table Text Block]	DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING BALANCE SHEETS (in thousands except unit data) June 30, 2017 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total ASSETS Income producing property: Land $ — $ 78,087 $ 29,452 $ — $ 107,539 Buildings and improvements — 2,333,048 808,054 — 3,141,102 — 2,411,135 837,506 — 3,248,641 Less: accumulated depreciation — (647,268 ) (69,451 ) — (716,719 ) Net income producing property — 1,763,867 768,055 — 2,531,922 Construction in progress and property held for development — 148,983 402,275 — 551,258 Net real estate — 1,912,850 1,170,330 — 3,083,180 Cash and cash equivalents 21,062 — 5,848 — 26,910 Rents and other receivables, net 15 3,803 5,604 — 9,422 Deferred rent, net — 101,707 18,892 — 120,599 Deferred costs, net 5,129 10,116 8,428 — 23,673 Investment in affiliates 3,001,538 — — (3,001,538 ) — Prepaid expenses and other assets 5,486 29,635 13,346 — 48,467 Total assets $ 3,033,230 $ 2,058,111 $ 1,222,448 $ (3,001,538 ) $ 3,312,251 LIABILITIES AND PARTNERS’ CAPITAL Liabilities: Line of credit $ 335,997 $ — $ — $ — $ 335,997 Mortgage notes payable, net of deferred financing costs — — 107,175 — 107,175 Unsecured term loan, net of deferred financing costs 249,143 — — — 249,143 Unsecured notes payable, net of discount and deferred financing costs 838,461 — — — 838,461 Accounts payable and accrued liabilities 9,759 21,804 7,863 — 39,426 Construction costs payable — 13,475 61,320 — 74,795 Accrued interest payable 11,507 — 8 — 11,515 Distribution payable 46,431 — — — 46,431 Prepaid rents and other liabilities 253 48,582 18,794 — 67,629 Total liabilities 1,491,551 83,861 195,160 — 1,770,572 Redeemable partnership units 714,494 — — — 714,494 Commitments and contingencies — — — — — Limited Partners’ Capital: Series C cumulative redeemable perpetual preferred units, 8,050,000 units issued and outstanding at June 30, 2017 201,250 — — — 201,250 Common units, 77,183,215 units issued and outstanding at June 30, 2017 620,609 1,974,250 1,027,288 (3,001,538 ) 620,609 General partner’s capital, 662,373 common units issued and outstanding at June 30, 2017 5,326 — — — 5,326 Total partners’ capital 827,185 1,974,250 1,027,288 (3,001,538 ) 827,185 Total liabilities & partners’ capital $ 3,033,230 $ 2,058,111 $ 1,222,448 $ (3,001,538 ) $ 3,312,251 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING BALANCE SHEETS (in thousands except unit data) December 31, 2016 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total ASSETS Income producing property: Land $ — $ 80,673 $ 25,217 $ — $ 105,890 Buildings and improvements — 2,332,771 685,590 — 3,018,361 — 2,413,444 710,807 — 3,124,251 Less: accumulated depreciation — (605,488 ) (56,695 ) — (662,183 ) Net income producing property — 1,807,956 654,112 — 2,462,068 Construction in progress and property held for development — 88,836 242,147 — 330,983 Net real estate — 1,896,792 896,259 — 2,793,051 Cash and cash equivalents 31,781 — 2,628 — 34,409 Rents and other receivables, net 1,390 4,743 5,400 — 11,533 Deferred rent, net — 109,142 13,916 — 123,058 Deferred costs, net 6,066 11,632 8,078 — 25,776 Investment in affiliates 2,713,096 — — (2,713,096 ) — Prepaid expenses and other assets 3,463 32,479 10,480 — 46,422 Total assets $ 2,755,796 $ 2,054,788 $ 936,761 $ (2,713,096 ) $ 3,034,249 LIABILITIES AND PARTNERS’ CAPITAL Liabilities: Line of credit $ 50,926 $ — $ — $ — $ 50,926 Mortgage notes payable, net of deferred financing costs — — 110,733 — 110,733 Unsecured term loan, net of deferred financing costs 249,036 — — — 249,036 Unsecured notes payable, net of discount and deferred financing costs 837,323 — — — 837,323 Accounts payable and accrued liabilities 6,477 22,319 8,113 — 36,909 Construction costs payable — 10,159 46,269 — 56,428 Accrued interest payable 11,578 — 14 — 11,592 Distribution payable 46,352 — — — 46,352 Prepaid rents and other liabilities 216 61,429 19,417 — 81,062 Total liabilities 1,201,908 93,907 184,546 — 1,480,361 Redeemable partnership units 591,101 — — — 591,101 Commitments and contingencies — — — — — Limited Partners’ Capital: Series C cumulative redeemable perpetual preferred units, 8,050,000 units issued and outstanding at December 31, 2016 201,250 — — — 201,250 Common units, 75,252,390 units issued and outstanding at December 31, 2016 754,892 1,960,881 752,215 (2,713,096 ) 754,892 General partner’s capital, 662,373 common units issued and outstanding at December 31, 2016 6,645 — — — 6,645 Total partners’ capital 962,787 1,960,881 752,215 (2,713,096 ) 962,787 Total liabilities & partners’ capital $ 2,755,796 $ 2,054,788 $ 936,761 $ (2,713,096 ) $ 3,034,249
Schedule of Supplemental Consolidating Statements of Operations [Table Text Block]	Three months ended June 30, 2017 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 4,727 $ 66,269 $ 26,662 $ (4,727 ) $ 92,931 Recoveries from tenants — 36,305 9,768 — 46,073 Other revenues — 409 1,297 — 1,706 Total revenues 4,727 102,983 37,727 (4,727 ) 140,710 Expenses: Property operating costs — 36,495 9,704 (4,727 ) 41,472 Real estate taxes and insurance — 3,894 1,135 — 5,029 Depreciation and amortization 49 21,771 7,128 — 28,948 General and administrative 5,940 15 321 — 6,276 Transaction expenses 7,128 — — — 7,128 Other expenses 268 8 1,031 — 1,307 Total expenses 13,385 62,183 19,319 (4,727 ) 90,160 Operating (loss) income (8,658 ) 40,800 18,408 — 50,550 Interest: Expense incurred (15,941 ) 1,345 2,803 — (11,793 ) Amortization of deferred financing costs (1,019 ) 93 132 — (794 ) Equity in earnings 63,581 — — (63,581 ) — Net income (loss) 37,963 42,238 21,343 (63,581 ) 37,963 Preferred unit distributions (3,333 ) — — — (3,333 ) Net income (loss) attributable to common units $ 34,630 $ 42,238 $ 21,343 $ (63,581 ) $ 34,630 Three months ended June 30, 2016 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 4,538 $ 67,562 $ 15,825 $ (4,563 ) $ 83,362 Recoveries from tenants — 35,809 5,886 — 41,695 Other revenues — 412 3,090 (21 ) 3,481 Total revenues 4,538 103,783 24,801 (4,584 ) 128,538 Expenses: Property operating costs — 36,130 6,362 (4,559 ) 37,933 Real estate taxes and insurance — 4,905 935 — 5,840 Depreciation and amortization 12 22,301 4,010 — 26,323 General and administrative 5,011 28 235 — 5,274 Other expenses 865 (117 ) 2,470 (25 ) 3,193 Total expenses 5,888 63,247 14,012 (4,584 ) 78,563 Operating (loss) income (1,350 ) 40,536 10,789 — 49,975 Interest: Expense incurred (13,916 ) 123 2,230 — (11,563 ) Amortization of deferred financing costs (958 ) 6 33 — (919 ) Gain on sale of real estate 21,874 — 1,190 — 23,064 Equity in earnings 54,907 — — (54,907 ) — Net income (loss) 60,557 40,665 14,242 (54,907 ) 60,557 Preferred unit distributions (6,964 ) — — — (6,964 ) Issuance costs associated with redeemed preferred units (8,827 ) — — — (8,827 ) Net income (loss) attributable to common units $ 44,766 $ 40,665 $ 14,242 $ (54,907 ) $ 44,766 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Six months ended June 30, 2017 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 9,422 $ 132,961 $ 51,238 $ (9,422 ) $ 184,199 Recoveries from tenants — 72,398 18,970 — 91,368 Other revenues — 829 3,798 — 4,627 Total revenues 9,422 206,188 74,006 (9,422 ) 280,194 Expenses: Property operating costs — 72,410 18,675 (9,422 ) 81,663 Real estate taxes and insurance — 7,873 2,166 — 10,039 Depreciation and amortization 93 43,546 13,516 — 57,155 General and administrative 12,486 23 579 — 13,088 Transaction expenses 7,128 — — — 7,128 Other expenses 780 20 3,212 — 4,012 Total expenses 20,487 123,872 38,148 (9,422 ) 173,085 Operating (loss) income (11,065 ) 82,316 35,858 — 107,109 Interest: Expense incurred (30,811 ) 2,382 5,177 — (23,252 ) Amortization of deferred financing costs (2,037 ) 170 248 — (1,619 ) Equity in earnings 126,151 — — (126,151 ) — Net income (loss) 82,238 84,868 41,283 (126,151 ) 82,238 Preferred unit distributions (6,666 ) — — — (6,666 ) Net income (loss) attributable to common units $ 75,572 $ 84,868 $ 41,283 $ (126,151 ) $ 75,572 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONSOLIDATING STATEMENTS OF OPERATIONS (in thousands) Six months ended June 30, 2016 Operating Subsidiary Subsidiary Eliminations Consolidated Revenues: Base rent $ 8,940 $ 136,928 $ 29,029 $ (9,002 ) $ 165,895 Recoveries from tenants — 70,184 10,205 — 80,389 Other revenues — 876 5,572 (45 ) 6,403 Total revenues 8,940 207,988 44,806 (9,047 ) 252,687 Expenses: Property operating costs — 71,735 11,138 (8,985 ) 73,888 Real estate taxes and insurance — 9,601 1,555 — 11,156 Depreciation and amortization 27 44,787 7,352 — 52,166 General and administrative 10,444 37 368 — 10,849 Other expenses 971 22 4,611 (62 ) 5,542 Total expenses 11,442 126,182 25,024 (9,047 ) 153,601 Operating (loss) income (2,502 ) 81,806 19,782 — 99,086 Interest: Expense incurred (28,090 ) 123 4,835 — (23,132 ) Amortization of deferred financing costs (1,911 ) 6 141 — (1,764 ) Gain on sale of real estate 21,874 — 1,190 — 23,064 Equity in earnings 107,883 — — (107,883 ) — Net income (loss) 97,254 81,935 25,948 (107,883 ) 97,254 Preferred unit distributions (13,775 ) — — — (13,775 ) Issuance costs associated with redeemed preferred units (8,827 ) — — — (8,827 ) Net income (loss) attributable to common units $ 74,652 $ 81,935 $ 25,948 $ (107,883 ) $ 74,652
Schedule of Supplemental Consolidating Statements Of Cash Flows [Table Text Block]	DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (in thousands) Six months ended June 30, 2017 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total Cash flow from operating activities Net cash (used in) provided by operating activities $ (38,620 ) $ 125,715 $ 50,248 $ — $ 137,343 Return on investment in subsidiaries 175,963 — — (175,963 ) — Net cash provided by (used in) operating activities 137,343 125,715 50,248 (175,963 ) 137,343 Cash flow from investing activities Investments in real estate – development — (168,677 ) (132,827 ) — (301,504 ) Acquisition of real estate — — (12,250 ) — (12,250 ) Investments in subsidiaries (330,131 ) — — 330,131 — Interest capitalized for real estate under development — (2,383 ) (6,512 ) — (8,895 ) Improvements to real estate — (401 ) (17 ) — (418 ) Additions to non-real estate property (127 ) (33 ) (36 ) — (196 ) Net cash (used in) provided by investing activities (330,258 ) (171,494 ) (151,642 ) 330,131 (323,263 ) Cash flow from financing activities Line of credit: Proceeds 282,432 — — — 282,432 Mortgage notes payable: Repayments — — (3,750 ) — (3,750 ) Payments of financing costs (85 ) — (25 ) — (110 ) Equity compensation payments (4,041 ) — — — (4,041 ) Parent financing — 171,494 158,637 (330,131 ) — Distribution to parent — (125,715 ) (50,248 ) 175,963 — Distributions (96,110 ) — — — (96,110 ) Net cash provided by (used in) financing activities 182,196 45,779 104,614 (154,168 ) 178,421 Net (decrease) increase in cash and cash equivalents (10,719 ) — 3,220 — (7,499 ) Cash and cash equivalents, beginning of period 31,781 — 2,628 — 34,409 Cash and cash equivalents, ending of period $ 21,062 $ — $ 5,848 $ — $ 26,910 DUPONT FABROS TECHNOLOGY, L.P. SUPPLEMENTAL CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (in thousands) Six months ended June 30, 2016 Operating Partnership Subsidiary Guarantors Subsidiary Non-Guarantors Eliminations Consolidated Total Cash flow from operating activities Net cash (used in) provided by operating activities $ (30,954 ) $ 120,759 $ 34,636 $ — $ 124,441 Cash flow from investing activities Proceeds from the sale of real estate — 120,086 3,459 — 123,545 Investments in real estate – development (452 ) (43 ) (101,372 ) — (101,867 ) Land acquisition costs - related party — — (20,168 ) — (20,168 ) Investments in subsidiaries 146,000 (237,391 ) 91,391 — — Interest capitalized for real estate under development (2 ) (123 ) (5,993 ) — (6,118 ) Improvements to real estate — (3,098 ) — — (3,098 ) Additions to non-real estate property (200 ) (190 ) (36 ) — (426 ) Net cash provided by (used in) investing activities 145,346 (120,759 ) (32,719 ) — (8,132 ) Cash flow from financing activities Line of credit: Proceeds 60,000 — — — 60,000 Repayments (60,000 ) — — — (60,000 ) Mortgage notes payable: Repayments — — (1,250 ) — (1,250 ) Payments of financing costs (71 ) — (25 ) — (96 ) Issuance of common units, net of offering costs 275,720 — — — 275,720 Issuance of preferred units, net of offering costs 194,502 — — — 194,502 Redemption of preferred units (251,250 ) — — — (251,250 ) Equity compensation proceeds 8,285 — — — 8,285 Distributions (96,414 ) — — — (96,414 ) Net cash provided by (used in) financing activities 130,772 — (1,275 ) — 129,497 Net increase in cash and cash equivalents 245,164 — 642 — 245,806 Cash and cash equivalents, beginning of period 21,697 — 5,318 — 27,015 Cash and cash equivalents, ending of period $ 266,861 $ — $ 5,960 $ — $ 272,821

1. Description of Business (Det

1. Description of Business (Details) $ in Millions	6 Months Ended
1. Description of Business (Details) $ in Millions	Jun. 30, 2017USD ($)
Subsidiary or Equity Method Investee [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	87.00%
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	0.90%
Merger agreement - share/unit exchange ratio	0.545
Merger agreement - preferred share exchange ratio	1
Merger agreement - DFT termination fee	$ 150
Merger agreement - DLR termination fee	$ 300
Series C cumulative redeemable perpetual preferred stock [Member]
Subsidiary or Equity Method Investee [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.625%

2. Significant Accounting Pol31

2. Significant Accounting Policies Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Cash at Bank Held by Parent Company not Part of Operating Partnership	$ 4.2		$ 4.2
Depreciation	27.9	$ 25.3	55	$ 50
Asset impairment charges	0	0	0	0
Amortization of Deferred Leasing Fees	1	1.1	2.1	2.1
Fuel Inventory	4.3		4.3		$ 4.2
Notes, Loans and Financing Receivable, Gross, Noncurrent	24.9		24.9		25
Account receivable reserve	23.6		23.6		23.6
Notes, Loans and Financing Receivable, Net, Noncurrent	1.3		1.3		1.4
Deferred Rent Reserve	0		0		$ 0
Foreign Currency Transaction Gain (Loss), before Tax	$ 0	$ 0	$ 0	$ 0
Building and Building Improvements [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			40 years
Minimum [Member] \| Building and Building Improvements [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			10 years
Minimum [Member] \| Personal Property [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Maximum [Member] \| Building and Building Improvements [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			40 years
Maximum [Member] \| Personal Property [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life			7 years

2. Significant Accounting Pol32

2. Significant Accounting Policies Schedule of Deferred Financing Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets [Member]
Significant Accounting Policies [Line Items]
Financing costs	$ 12,353	$ 12,352
Accumulated amortization	(7,224)	(6,376)
Financing costs, net	5,129	5,976
Liability [Member]
Significant Accounting Policies [Line Items]
Financing costs	20,470	20,423
Accumulated amortization	(9,309)	(7,935)
Financing costs, net	$ 11,161	$ 12,488

2. Significant Accounting Pol33

2. Significant Accounting Policies Schedule of Leasing Costs Incurred (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Schedule of Leasing Costs Incurred [Line Items]
Payments for Leasing Costs	$ 614	$ 1,854	$ 890	$ 3,465
New Lease [Member]
Schedule of Leasing Costs Incurred [Line Items]
Payments for Leasing Costs	614	1,670	890	3,270
Lease Renewal [Member]
Schedule of Leasing Costs Incurred [Line Items]
Payments for Leasing Costs	$ 0	$ 184	$ 0	$ 195

2. Significant Accounting Pol34

2. Significant Accounting Policies Schedule of Deferred Leasing Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Leasing costs	$ 54,446	$ 53,556
Accumulated amortization	(35,904)	(33,756)
Leasing costs, net	$ 18,542	$ 19,800

2. Significant Accounting Pol35

2. Significant Accounting Policies Schedule of Above and Below Market Lease Intangibles (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Lease contracts above market value	$ 18,900	$ 20,500
Accumulated amortization	(14,290)	(15,362)
Lease contracts above market value, net	4,610	5,138
Lease contracts below market value	13,575	24,175
Accumulated Amortization	(11,638)	(21,345)
Lease contracts below market value, net	$ 1,937	$ 2,830

2. Significant Accounting Pol36

2. Significant Accounting Policies Schedule of Redeemable Noncontrolling Interests - Operating Partnership (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounting Policies [Abstract]
Balance at December 31, 2016, units			13,455,515
Balance at December 31, 2016			$ 591,101
Net income attributable to redeemable noncontrolling interests – operating partnership	$ 4,506	$ 7,467	10,218	$ 12,945
Other comprehensive income attributable to redeemable noncontrolling interests - operating partnership	$ (15)	$ 0	17	0
Distributions declared			$ (11,682)
Redemption of operating partnership units, shares			(1,773,147)
Redemption of operating partnership units			$ (77,894)	(49,468)
Adjustments to redeemable noncontrolling interests – operating partnership			$ 202,734	$ 227,425
Balance at June 30, 2017, units	11,682,368		11,682,368
Balance at June 30, 2017	$ 714,494		$ 714,494

2. Significant Accounting Pol37

2. Significant Accounting Policies Schedule of Redeemable Partnership Units (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Significant Accounting Policies [Line Items]
Balance at December 31, 2016, units	13,455,515
Balance at December 31, 2016	$ 591,101
Redemption of operating partnership units, shares	(1,773,147)
Redemption of operating partnership units	$ (77,894)	$ (49,468)
Balance at June 30, 2017, units	11,682,368
Balance at June 30, 2017	$ 714,494
DuPont Fabros Technology, L.P. [Member]
Significant Accounting Policies [Line Items]
Balance at December 31, 2016, units	13,455,515
Balance at December 31, 2016	$ 591,101
Redemption of operating partnership units, shares	(1,773,147)
Redemption of operating partnership units	$ (77,894)	$ (49,468)
Adjustments to redeemable partnership units	$ 201,287
Balance at June 30, 2017, units	11,682,368
Balance at June 30, 2017	$ 714,494

2. Significant Accounting Pol38

2. Significant Accounting Policies Schedule of Net Income Attributable to Controlling Interests and Transfers to Redeemable Noncontrolling Interests – Operating Partnership (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounting Policies [Abstract]
Net income attributable to controlling interests	$ 33,457	$ 53,090	$ 72,020	$ 84,309
Net change in the Company’s common stock and additional paid in capital due to the redemption of OP units and other adjustments to redeemable noncontrolling interests – operating partnership	(136,486)	(52,476)	(124,840)	(177,957)
Net Income Attributable to Controlling Interests and Transfers from Redeemable Noncontrolling Interests Operating Partnership	$ (103,029)	$ 614	$ (52,820)	$ (93,648)

3. Real Estate Assets Schedule

3. Real Estate Assets Schedule of Real Estate Assets (Details) $ in Thousands	Jun. 30, 2017USD ($)a		Dec. 31, 2016USD ($)
Real Estate Assets [Line Items]
Land	$ 107,539		$ 105,890
Buildings and improvements	3,141,102		3,018,361
Construction in progress and property held for development	551,258	[1]	330,983
Income producing property	3,248,641		$ 3,124,251
Real Estate, Gross	3,799,899
ACC2 [Member]
Real Estate Assets [Line Items]
Land	2,500
Buildings and improvements	156,591
Construction in progress and property held for development
Income producing property	159,091
ACC3 [Member]
Real Estate Assets [Line Items]
Land	1,071
Buildings and improvements	96,080
Construction in progress and property held for development
Income producing property	97,151
ACC4 [Member]
Real Estate Assets [Line Items]
Land	6,600
Buildings and improvements	538,869
Construction in progress and property held for development
Income producing property	545,469
ACC5 [Member]
Real Estate Assets [Line Items]
Land	6,443
Buildings and improvements	299,016
Construction in progress and property held for development
Income producing property	305,459
ACC6 [Member]
Real Estate Assets [Line Items]
Land	5,518
Buildings and improvements	216,829
Construction in progress and property held for development
Income producing property	222,347
ACC7 [Member]
Real Estate Assets [Line Items]
Land	9,753
Buildings and improvements	335,490
Construction in progress and property held for development
Income producing property	345,243
ACC9 Phase I [Member]
Real Estate Assets [Line Items]
Land	4,235
Buildings and improvements	119,573
Construction in progress and property held for development
Income producing property	123,808
CH1 [Member]
Real Estate Assets [Line Items]
Land	21,025
Buildings and improvements	359,171
Construction in progress and property held for development
Income producing property	380,196
CH2 [Member]
Real Estate Assets [Line Items]
Land	14,392
Buildings and improvements	256,910
Construction in progress and property held for development
Income producing property	271,302
SC1 Phase I-II [Member]
Real Estate Assets [Line Items]
Land	20,202
Buildings and improvements	433,099
Construction in progress and property held for development
Income producing property	453,301
VA3 [Member]
Real Estate Assets [Line Items]
Land	9,000
Buildings and improvements	179,860
Construction in progress and property held for development
Income producing property	188,860
VA4 [Member]
Real Estate Assets [Line Items]
Land	6,800
Buildings and improvements	149,614
Construction in progress and property held for development
Income producing property	$ 156,414
PHX1 [Member]
Real Estate Assets [Line Items]
Area of Land \| a	56.5
Land Available for Development	$ 12,250
UNITED STATES
Real Estate Assets [Line Items]
Income producing property	3,701,600
CANADA
Real Estate Assets [Line Items]
Construction in progress and property held for development	$ 98,300

[1]	(1)Properties located in Ashburn, VA (ACC8, ACC9 Phase II, ACC10, and ACC11), Elk Grove Village, IL (CH3), Santa Clara, CA (SC1 Phase III), Hillsboro, OR (OR1 and OR2), Vaughan, ON (TOR1) and Mesa, AZ (PHX1 and PHX2).

4. Debt Summary (Details)

4. Debt Summary (Details) $ in Thousands	6 Months Ended
4. Debt Summary (Details) $ in Thousands	Jun. 30, 2017USD ($)		Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Mortgage notes payable	$ 107,175		$ 110,733
Unsecured term loan	249,143		249,036
Long-term Debt, Gross	1,543,497		1,262,176
Unsecured notes payable	838,461		837,323
Line of credit	$ 335,997		50,926
Total Debt in Percentage	100.00%
Debt, Weighted Average Interest Rate	4.40%
Long Term Debt, Weighted Average Maturity in Years	4.1
Unsecured bridge loan commitment	$ 200,000
Unsecured bridge loan commitment variable interest rate basis point spread	150
Unsecured bridge loan commitment variable interest rate basis point increase every three months	50
Fixed Rate Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Amount	$ 850,000		850,000
Percentage of Total Debt	55.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.80%
FixedInterestDebtMaturityInYears	4.7
Unsecured Notes due 2021 [Member]
Debt Instrument [Line Items]
Unsecured notes payable	$ 600,000		600,000
Percentage of Total Debt	39.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.875%
Unsecured Debt Maturity, in Years	4.2
Unsecured Notes due 2023 [Member]
Debt Instrument [Line Items]
Unsecured notes payable	$ 250,000	[1]	250,000
Percentage of Total Debt	16.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.625%
Unsecured Debt Maturity, in Years	6
Debt Instrument, Unamortized Discount	$ (1,600)
Floating Rate Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Amount	$ 693,497		412,176
Percentage of Total Debt	45.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.70%
VariableInterestDebtMaturityInYears	3.2
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit	$ 335,997		50,926
Percentage of Total Debt	22.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.70%
Unsecured Debt Maturity, in Years	3.1
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Unsecured term loan	$ 250,000		250,000
Percentage of Total Debt	16.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.70%
Unsecured Debt Maturity, in Years	4.6
AccThreeTermLoan [Member]
Debt Instrument [Line Items]
Term Loan	$ 107,500		111,250
Percentage of Total Debt	7.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.80%
Secured Debt Maturity, in Years	0.7
Secured Debt [Member]
Debt Instrument [Line Items]
Mortgage notes payable	$ 107,500		111,250
Percentage of Total Debt	7.00%
Long-Term Debt, Secured Interest Rate	2.80%
Secured Debt Maturity, in Years	0.7
Unsecured Debt [Member]
Debt Instrument [Line Items]
Unsecured term loan	$ 1,435,997		$ 1,150,926
Percentage of Total Debt	93.00%
Long-Term Debt, Unsecured Interest Rate	4.50%
Unsecured Debt Maturity, in Years	4.3

[1]	(2) Principal amount excludes original issue discount of $1.6 million

4. Debt Unsecured Credit Facili

4. Debt Unsecured Credit Facility (Details) $ in Thousands, CAD in Millions	6 Months Ended
	Jun. 30, 2017USD ($)	Jun. 30, 2017CAD	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 750,000
Line of Credit Facility, Maximum Borrowing Capacity	1,250,000
Facility amount available for Letters of Credit	35,000
Letters of Credit Outstanding, Amount	0
Line of credit	$ 335,997		$ 50,926
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jul. 25, 2020
Basis Points Extension Fee On Total Commitment	7.5
Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Unsecured Debt To Unencumbered Assets	60.00%
Unsecured Debt To Unencumbered Assets After Material Acquisition	65.00%
Ratio of Total Indebtedness To Gross Assets Value	60.00%
Ratio of Total Indebtedness To Gross Assets Value After Material Acquisition	65.00%
Unhedged Variable Rate Debt To Gross Asset Value Ratio	30.00%
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Income from Unencumbered Assets To Unsecured Debt	12.50%
Income from Unencumbered Assets To Unsecured Debt After Material Acquisition	10.00%
Fixed Charge Coverage Ratio	1.70
Tangible Net Worth Amount	$ 2,300,000
Percentage Of Equity Offerings And Interests In Operating Partnerships To Be Added To Tangible Net Worth Threshold	75.00%
Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit \| CAD		CAD 105
Foreign Line of Credit [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 185,000	CAD 250

4. Debt Applicable Margin of Un

4. Debt Applicable Margin of Unsecured Credit Facility (Details) - Revolving Credit Facility [Member]	6 Months Ended
	Jun. 30, 2017
Maximum [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	60.00%
Maximum [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	35.00%
Maximum [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	40.00%
Maximum [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	45.00%
Maximum [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	52.50%
Minimum [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	35.00%
Minimum [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	40.00%
Minimum [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	45.00%
Minimum [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	52.50%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.55%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.65%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.80%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.95%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.15%
Base Rate [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.55%
Base Rate [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.65%
Base Rate [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.80%
Base Rate [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.95%
Base Rate [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.15%

4. Debt Credit Rating for Unsec

4. Debt Credit Rating for Unsecured Credit Facility (Details) - Revolving Credit Facility [Member]	6 Months Ended
	Jun. 30, 2017
Maximum [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	60.00%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, A3 Rating [Member] \| Credit Rating Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.85%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa1 Rating [Member] \| Credit Rating Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.90%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa2 Rating [Member] \| Credit Rating Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.20%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.55%
Base Rate [Member] \| Moody's, A3 Rating [Member] \| Credit Rating Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa1 Rating [Member] \| Credit Rating Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa2 Rating [Member] \| Credit Rating Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.20%
Base Rate [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.55%

4. Debt Unsecured Term Loan (De

4. Debt Unsecured Term Loan (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unsecured term loan	$ 249,143	$ 249,036
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Unsecured term loan	$ 250,000
Debt Instrument, Maturity Date	Jan. 21, 2022
Unsecured Term Loan [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Unsecured Debt To Unencumbered Assets	60.00%
Unsecured Debt To Unencumbered Assets After Material Acquisition	65.00%
Ratio of Total Indebtedness To Gross Assets Value	60.00%
Ratio of Total Indebtedness To Gross Assets Value After Material Acquisition	65.00%
Unhedged Variable Rate Debt To Gross Asset Value Ratio	30.00%
Unsecured Term Loan [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Income from Unencumbered Assets To Unsecured Debt	12.50%
Income from Unencumbered Assets To Unsecured Debt After Material Acquisition	10.00%
Fixed Charge Coverage Ratio	1.70
Tangible Net Worth Amount	$ 2,300,000
Percentage Of Equity Offerings And Interests In Operating Partnerships To Be Added To Tangible Net Worth Threshold	75.00%

4. Debt Applicable Margin of 45

4. Debt Applicable Margin of Unsecured Term Loan (Details) - Unsecured Term Loan [Member]	6 Months Ended
	Jun. 30, 2017
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.60%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.90%
London Interbank Offered Rate (LIBOR) [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.10%
Base Rate [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Base Rate [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.60%
Base Rate [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Base Rate [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.90%
Base Rate [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.10%
Maximum [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	60.00%
Maximum [Member] \| Pricing Level 1 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	35.00%
Maximum [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	40.00%
Maximum [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	45.00%
Maximum [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	52.50%
Minimum [Member] \| Pricing Level 2 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	35.00%
Minimum [Member] \| Pricing Level 3 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	40.00%
Minimum [Member] \| Pricing Level 4 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	45.00%
Minimum [Member] \| Pricing Level 5 [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	52.50%

4. Debt Credit Rating for Uns46

4. Debt Credit Rating for Unsecured Term Loan (Details) - Unsecured Term Loan [Member]	6 Months Ended
	Jun. 30, 2017
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, A3 Rating [Member] \| Credit Rating Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.825%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa1 Rating [Member] \| Credit Rating Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.875%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa2 Rating [Member] \| Credit Rating Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
London Interbank Offered Rate (LIBOR) [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.65%
Base Rate [Member] \| Moody's, A3 Rating [Member] \| Credit Rating Level 1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa1 Rating [Member] \| Credit Rating Level 2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa2 Rating [Member] \| Credit Rating Level 3 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 4 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Base Rate [Member] \| Moody's, Baa3 Rating [Member] \| Credit Rating Level 5 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.65%

4. Debt ACC3 Term Loan (Details

4. Debt ACC3 Term Loan (Details) $ in Thousands	6 Months Ended
4. Debt ACC3 Term Loan (Details) $ in Thousands	Jun. 30, 2017USD ($)	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Mortgage notes payable	$ 107,175	$ 110,733
AccThreeTermLoan [Member]
Debt Instrument [Line Items]
Mortgage notes payable	$ 107,500
Debt Instrument, Maturity Date	Mar. 27, 2018
AccThreeTermLoan [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Ratio of Total Indebtedness To Gross Assets Value	60.00%
AccThreeTermLoan [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed Charge Coverage Ratio	1.70
Tangible Net Worth Amount	$ 1,300,000
Percentage Of Equity Offerings And Interests In Operating Partnerships To Be Added To Tangible Net Worth Threshold	80.00%
Debt Service Coverage Ratio	1.50
AccThreeTermLoan [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.55%
AccThreeTermLoan [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.55%

4. Debt Unsecured Notes due 202

4. Debt Unsecured Notes due 2021 (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unsecured notes payable	$ 838,461	$ 837,323
Unsecured Notes due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Sep. 24, 2013
Unsecured notes payable	$ 600,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.875%
Debt Instrument, Maturity Date	Sep. 15, 2021
Unencumbered Assets to Unsecured Debt	150.00%
Unsecured Notes due 2021 [Member] \| Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	104.406%
Unsecured Notes due 2021 [Member] \| Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	102.938%
Unsecured Notes due 2021 [Member] \| Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.469%
Unsecured Notes due 2021 [Member] \| Debt Instrument, Redemption, Period Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Unsecured Notes due 2021 [Member] \| Change in Control [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.00%
Unsecured Notes due 2021 [Member] \| Asset Sales [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%

4. Debt Unsecured Notes due 249

4. Debt Unsecured Notes due 2023 (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Unsecured notes payable	$ 838,461	$ 837,323
Unsecured Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Jun. 9, 2015
Unsecured notes payable	$ 250,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	5.625%
Issuance price per note	99.205%
Debt Instrument, Maturity Date	Jun. 15, 2023
Unencumbered Assets to Unsecured Debt	150.00%
Unsecured Notes due 2023 [Member] \| Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Unsecured Notes due 2023 [Member] \| Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	104.219%
Unsecured Notes due 2023 [Member] \| Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	102.813%
Unsecured Notes due 2023 [Member] \| Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.406%
Unsecured Notes due 2023 [Member] \| Debt Instrument, Redemption, Period Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%
Unsecured Notes due 2023 [Member] \| Change in Control [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.00%
Unsecured Notes due 2023 [Member] \| Asset Sales [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	100.00%

4. Debt Maturity Summary (Detai

4. Debt Maturity Summary (Details) - USD ($) $ in Thousands		6 Months Ended
4. Debt Maturity Summary (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 1,543,497	$ 1,262,176
Total Debt in Percentage		100.00%
Debt, Weighted Average Interest Rate		4.40%
2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 5,000
Percentage of Total Debt		0.30%
Debt, Weighted Average Interest Rate		2.80%
2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 102,500
Percentage of Total Debt		6.60%
Debt, Weighted Average Interest Rate		2.80%
2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 0
Percentage of Total Debt		0.00%
Debt, Weighted Average Interest Rate		0.00%
2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 335,997
Percentage of Total Debt		21.80%
Debt, Weighted Average Interest Rate		2.70%
2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 600,000
Percentage of Total Debt		38.90%
Debt, Weighted Average Interest Rate		5.90%
2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 250,000
Percentage of Total Debt		16.20%
Debt, Weighted Average Interest Rate		2.70%
2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 250,000
Percentage of Total Debt		16.20%
Debt, Weighted Average Interest Rate		5.60%
Fixed Rate Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Amount		$ 850,000	850,000
Percentage of Total Debt		55.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		5.80%
Fixed Rate Debt [Member] \| 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 0
Fixed Rate Debt [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		0
Fixed Rate Debt [Member] \| 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		0
Fixed Rate Debt [Member] \| 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		0
Fixed Rate Debt [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	[1]	600,000
Fixed Rate Debt [Member] \| 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		0
Fixed Rate Debt [Member] \| 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	[2]	250,000
Floating Rate Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Amount		$ 693,497	$ 412,176
Percentage of Total Debt		45.00%
Floating Rate Debt [Member] \| 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	[3]	$ 5,000
Floating Rate Debt [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	[3]	102,500
Floating Rate Debt [Member] \| 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal	[4]	0
Floating Rate Debt [Member] \| 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		335,997
Floating Rate Debt [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		0
Floating Rate Debt [Member] \| 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		250,000
Floating Rate Debt [Member] \| 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 0
Unsecured Notes due 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		5.875%
Debt Instrument, Maturity Date		Sep. 15, 2021
Unsecured Notes due 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		5.625%
Debt Instrument, Maturity Date		Jun. 15, 2023
AccThreeTermLoan [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Mar. 27, 2018
Debt Instrument, Frequency of Periodic Payment		Quarterly
AccThreeTermLoan [Member] \| BeginningAprilOneTwoThousandSixteen [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 1,250
Debt Instrument, Date of First Required Payment		Apr. 1, 2016
AccThreeTermLoan [Member] \| BeginningAprilOneTwoThousandSeventeen [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal		$ 2,500
Debt Instrument, Date of Increased Required Payment		Apr. 1, 2017
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Jul. 25, 2020
Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Jan. 21, 2022

[1]	The 5.875% Unsecured Notes due 2021 mature on September 15, 2021.
[2]	The 5.625% Unsecured Notes due 2023 mature on June 15, 2023. Principal amount excludes original issue discount of $1.6 million as of June 30, 2017.
[3]	The ACC3 Term Loan matures on March 27, 2018 with no extension option. Quarterly principal payments of $1.25 million began on April 1, 2016, increased to $2.5 million on April 1, 2017 and continue through maturity.
[4]	The Unsecured Term Loan matures on January 21, 2022 with no extension option.

5. Commitments and Contingenc51

5. Commitments and Contingencies (Details) $ in Millions	6 Months Ended
5. Commitments and Contingencies (Details) $ in Millions	Jun. 30, 2017USD ($)
Long-term Purchase Commitment [Line Items]
Built in Gain Amount Tax Protected, No Guarantee on Secured Loan	$ 104
Percentage of Disinterested Members of Board for Approving Sales Resulting in Payments to Executives or Directors	75.00%
ACC9 Phase I [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	$ 168.4
Amount of Control Estimate Incurred	164.9
Total Commitments For Purchase of Equipment And Labor Related to Development	1.3
ACC9 Phase II [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	63.9
Amount of Control Estimate Incurred	50.5
Total Commitments For Purchase of Equipment And Labor Related to Development	5.7
SC1 Phase III [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	150.6
Amount of Control Estimate Incurred	135.4
Total Commitments For Purchase of Equipment And Labor Related to Development	15.2
CH3 Phase I [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	187.9
Amount of Control Estimate Incurred	103.6
Total Commitments For Purchase of Equipment And Labor Related to Development	66.5
CH3 Phase II [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	54.7
Amount of Control Estimate Incurred	1.3
Total Commitments For Purchase of Equipment And Labor Related to Development	29.5
ACC10 Phase I [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	159.1
Amount of Control Estimate Incurred	20.4
Total Commitments For Purchase of Equipment And Labor Related to Development	53.5
TOR1 Phase IA [Member]
Long-term Purchase Commitment [Line Items]
Estimated Control Cost	154.8
Amount of Control Estimate Incurred	46.9
Total Commitments For Purchase of Equipment And Labor Related to Development	$ 55.4

6. Redeemable noncontrolling 52

6. Redeemable noncontrolling interests operating partnership / Redeemable partnership units (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Redeemable noncontrolling interests – operating partnership / Redeemable partnership units [Line Items]
Redeemable noncontrolling interests - operating partnership	$ 714,494	$ 591,101
Share Price	$ 61.16	$ 43.93
Redemption of operating partnership units, shares	1,773,147

7. Preferred Stock (Details)

7. Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Preferred Stock [Line Items]
Proceeds from Issuance of Redeemable Preferred Stock			$ 0	$ 194,502
Series C cumulative redeemable perpetual preferred stock [Member]
Preferred Stock [Line Items]
Preferred stock, shares issued	8,050,000		8,050,000		8,050,000
Preferred Stock, Dividend Rate, Percentage			6.625%
Preferred stock, $.001 par value, 50,000,000 shares authorized	$ 201,250		$ 201,250		$ 201,250
Proceeds from Issuance of Redeemable Preferred Stock				$ 194,252
Preferred Stock, Liquidation Preference Per Share	$ 25		$ 25
Share Cap to Determine Redemption Price in Change in Control			1.1723
Dividend Paid [Member] \| Series C cumulative redeemable perpetual preferred stock [Member]
Preferred Stock [Line Items]
Preferred Stock, Dividends Per Share, Declared	$ 0.4140625	$ 0.4140625
Dividends Payable, Date of Record	May 1, 2017	Feb. 1, 2017
Dividends Payable, Date to be Paid	May 15, 2017	Feb. 15, 2017
Dividend Declared [Member] \| Series C cumulative redeemable perpetual preferred stock [Member]
Preferred Stock [Line Items]
Preferred Stock, Dividends Per Share, Declared			$ 0.4140625
Dividends Payable, Date of Record			Aug. 1, 2017
Dividends Payable, Date to be Paid			Aug. 15, 2017

8. Stockholders Equity of the54

8. Stockholders Equity of the REIT and Partners Capital of the OP (Details) - $ / shares	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Stockholders’ Equity of the REIT and Partners’ Capital of the OP [Line Items]
Dividends declared per common share	$ 0.50		$ 0.47	$ 1	$ 0.94
Common Stock [Member]
Stockholders’ Equity of the REIT and Partners’ Capital of the OP [Line Items]
Dividends declared per common share	$ 0.50	$ 0.50
Dividends Payable, Date of Record	Jul. 3, 2017	Apr. 3, 2017
Dividends Payable, Date to be Paid	Jul. 17, 2017	Apr. 17, 2017

9. Equity Compensation Plan Nar

9. Equity Compensation Plan Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)shares
Equity Compensation Plan [Line Items]
Maximum Number of Share Equivalents Authorized	9,000,000
Share equivalent ratio, other than stock options and SARs	5.39
Cumulative Share Equivalents Issued From The Plan	56,520
Share Equivalents Remaining Available	8,943,480
Shares of restricted stock, Granted	174,319
Value of Restricted Stock Awarded during period \| $	$ 8.3
Shares of restricted stock, Vested	123,606
Value of Restricted Stock on Vesting Date \| $	$ 6.3
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options \| $	$ 11.2
Weighted Average Vesting Period	1 year 292 days
Number of Options Granted	0
Performance Shares [Member]
Equity Compensation Plan [Line Items]
Shares of restricted stock, Granted	69,610
Shares of restricted stock, Vested	40,277
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options \| $	$ 6.6
Weighted Average Vesting Period	1 year 256 days
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	57,177
Performance Units Payout Percentage	150.00%
Performance Units Payout Percentage at Merger Closing Date	100.00%
Minimum [Member] \| Performance Shares [Member]
Equity Compensation Plan [Line Items]
Potential Number Of Shares Issued At Vesting Of Performance Units	0.00%
Maximum [Member] \| Performance Shares [Member]
Equity Compensation Plan [Line Items]
Potential Number Of Shares Issued At Vesting Of Performance Units	300.00%

9. Equity Compensation Plan Sum

9. Equity Compensation Plan Summary of Restricted Stock (Details)	6 Months Ended
	Jun. 30, 2017$ / sharesshares
Equity Compensation Plan [Line Items]
Unvested balance at December 31, 2016 \| shares	309,175
Weighted Average Grant Date Fair Value, Unvested balance at December 31, 2016 \| $ / shares	$ 32.30
Shares of restricted stock, Granted \| shares	174,319
Weighted Average Grant Date Fair Value, Granted \| $ / shares	$ 47.41
Shares of restricted stock, Vested \| shares	(123,606)
Weighted Average Grant Date Fair Value, Vested \| $ / shares	$ 30
Shares of restricted stock, Forfeited \| shares	(10,403)
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	$ 37.08
Unvested balance at June 30, 2017 \| shares	349,485
Weighted Average Grant Date Fair Value, Unvested balance at June 30, 2017 \| $ / shares	$ 40.03

9. Equity Compensation Plan S57

9. Equity Compensation Plan Summary of Stock Options (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)$ / sharesshares
Equity Compensation Plan [Line Items]
Under option, December 31, 2016 \| shares	751,479
Granted \| shares	0
Exercised \| shares	0
Forfeited \| shares	0
Under option, June 30, 2017 \| shares	751,479
Weighted Average Exercise Price, Under Option, December 31, 2016 \| $ / shares	$ 15.83
Weighted Average Exercise Price, Granted \| $ / shares	0
Weighted Average Exercise Price, Exercised \| $ / shares	0
Weighted Average Exercise Price, Forfeited \| $ / shares	0
Weighted Average Exercise Price, Under Option, June 30, 2017 \| $ / shares	$ 15.83
Total Unearned Compensation \| $	$ 0
Weighted Average Remaining Contractual Term	3 years 73 days

9. Equity Compensation Plan S58

9. Equity Compensation Plan Summary of Exercisable Stock Options (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)$ / sharesshares
Equity Compensation Plan [Line Items]
Options Exercisable at December 31, 2016 \| shares	751,479
Vested \| shares	0
Exercised \| shares	0
Options Exercisable at June 30, 2017 \| shares	751,479
Weighted Average Grant Date Fair Value, Exercisable at December 31, 2016	$ 4.71
Weighted Average Grant Date Fair Value, Vested	0
Weighted Average Grant Date Fair Value, Exercised	0
Weighted Average Grant Date Fair Value, Exercisable at June 30, 2017	$ 4.71
Intrinsic Value \| $	$ 34.1
Weighted Average Exercise Price	$ 15.83
Weighted Average Remaining Contractual Term	3 years 73 days

9. Equity Compensation Plan S59

9. Equity Compensation Plan Summary of Assumptions Used for Performance Units Granted (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)$ / sharesshares
Equity Compensation Plan [Line Items]
Performance units, Granted \| shares	174,319
Performance Shares [Member]
Equity Compensation Plan [Line Items]
Performance units, Granted \| shares	69,610
Expected volatility	24.00%
Expected annual dividend	4.23%
Risk-free rate	1.50%
Performance unit fair value at date of grant \| $ / shares	$ 73.46
Total grant fair value at date of grant (millions) \| $	$ 5.1
Maximum value of grant on vesting date based on closing price of the Company's stock at the date of grant \| $	$ 9.9

9. Equity Compensation Plan S60

9. Equity Compensation Plan Summary of Performance Units (Details)	6 Months Ended
	Jun. 30, 2017$ / sharesshares
Equity Compensation Plan [Line Items]
Unvested balance at December 31, 2016 \| shares	309,175
Weighted Average Grant Date Fair Value, Unvested balance at December 31, 2016 \| $ / shares	$ 32.30
Performance units, Granted \| shares	174,319
Weighted Average Grant Date Fair Value, Granted \| $ / shares	$ 47.41
Performance units, vested \| shares	(123,606)
Weighted Average Grant Date Fair Value, Vested \| $ / shares	$ 30
Performance units, Forfeited \| shares	(10,403)
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	$ 37.08
Unvested balance at June 30, 2017 \| shares	349,485
Weighted Average Grant Date Fair Value, Unvested balance at June 30, 2017 \| $ / shares	$ 40.03
Performance Shares [Member]
Equity Compensation Plan [Line Items]
Unvested balance at December 31, 2016 \| shares	196,652
Weighted Average Grant Date Fair Value, Unvested balance at December 31, 2016 \| $ / shares	$ 37.25
Performance units, Granted \| shares	69,610
Weighted Average Grant Date Fair Value, Granted \| $ / shares	$ 73.46
Performance units, vested \| shares	(40,277)
Weighted Average Grant Date Fair Value, Vested \| $ / shares	$ 33.94
Performance units, Forfeited \| shares	(5,812)
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	$ 56
Unvested balance at June 30, 2017 \| shares	220,173
Weighted Average Grant Date Fair Value, Unvested balance at June 30, 2017 \| $ / shares	$ 48.81

10. Earnings Per Share of the61

10. Earnings Per Share of the REIT (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings per share of the REIT [Line Items]
Weighted average common shares – basic	77,486,297	74,370,577	77,080,615	70,661,406
Effect of dilutive securities	1,001,676	861,057	991,329	857,089
Weighted average common shares – diluted	78,487,973	75,231,634	78,071,944	71,518,495
Net income attributable to common shares	$ 30,124	$ 37,299	$ 65,354	$ 61,707
Net income allocated to unvested restricted shares	(175)	(157)	(351)	(312)
Net income attributable to common shares, adjusted	$ 29,949	$ 37,142	$ 65,003	$ 61,395
Earnings per common share – basic	$ 0.39	$ 0.50	$ 0.84	$ 0.87
Adjusted net income available to common shares	$ 29,949	$ 37,142	$ 65,003	$ 61,395
Earnings per common share – diluted	$ 0.38	$ 0.49	$ 0.83	$ 0.86
Performance Shares [Member]
Earnings per share of the REIT [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	100,000	100,000	100,000	100,000

11. Earnings Per Unit of the 62

11. Earnings Per Unit of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings per unit of the Operating Partnership [Line Items]
Weighted average common units – basic (includes redeemable partnership units and units of general and limited partners)	89,168,665	88,977,907	89,132,366	85,483,976
Effect of dilutive securities	1,001,676	861,057	991,329	857,089
Weighted average common units – diluted	90,170,341	89,838,964	90,123,695	86,341,065
Net income Loss attributable to common units, basic	$ 34,630	$ 44,766	$ 75,572	$ 74,652
Net income allocated to unvested restricted units	(175)	(159)	(351)	(312)
Net income attributable to common units, adjusted	$ 34,455	$ 44,607	$ 75,221	$ 74,340
Earnings per unit, basic	$ 0.39	$ 0.50	$ 0.84	$ 0.87
Earnings per unit, diluted	$ 0.38	$ 0.49	$ 0.83	$ 0.86
DuPont Fabros Technology, L.P. [Member]
Earnings per unit of the Operating Partnership [Line Items]
Net income Loss attributable to common units, basic	$ 34,630	$ 44,766	$ 75,572	$ 74,652
Earnings per unit, basic	$ 0.39	$ 0.50	$ 0.84	$ 0.87
Earnings per unit, diluted	$ 0.38	$ 0.49	$ 0.83	$ 0.86
Performance Shares [Member]
Earnings per unit of the Operating Partnership [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	100,000	100,000	100,000	100,000

12. Fair Value (Details)

12. Fair Value (Details) $ in Millions	Jun. 30, 2017USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	$ 1,541.9
Long-term Debt, Fair Value	$ 1,573.8

13. Supplemental Consolidatin64

13. Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes Supplemental Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2017		Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	$ 107,539		$ 105,890
Buildings and improvements	3,141,102		3,018,361
Income producing property	3,248,641		3,124,251
Less: accumulated depreciation	(716,719)		(662,183)
Net income producing property	2,531,922		2,462,068
Construction in progress and property held for development	551,258	[1]	330,983
Net real estate	3,083,180		2,793,051
Cash and cash equivalents	31,125		38,624	$ 277,036	$ 31,230
Rents and other receivables, net	9,422		11,533
Deferred rent, net	120,599		123,058
Deferred costs, net	23,673		25,776
Prepaid expenses and other assets	48,467		46,422
Total assets	3,316,466		3,038,464
Line of credit	335,997		50,926
Mortgage notes payable, net of deferred financing costs	107,175		110,733
Unsecured term loan, net of deferred financing costs	249,143		249,036
Unsecured notes payable, net of discount and deferred financing costs	838,461		837,323
Accounts payable and accrued liabilities	39,426		36,909
Construction costs payable	74,795		56,428
Accrued interest payable	11,515		11,592
Distribution payable	46,431		46,352
Prepaid rents and other liabilities	67,629		81,062
Total liabilities	1,770,572		1,480,361
Redeemable partnership units	714,494		591,101
Commitments and contingencies	0		0
Total liabilities and stockholders’ equity	3,316,466		3,038,464
DuPont Fabros Technology, L.P. [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	107,539		105,890
Buildings and improvements	3,141,102		3,018,361
Income producing property	3,248,641		3,124,251
Less: accumulated depreciation	(716,719)		(662,183)
Net income producing property	2,531,922		2,462,068
Construction in progress and property held for development	551,258		330,983
Net real estate	3,083,180		2,793,051
Cash and cash equivalents	26,910		34,409	272,821	27,015
Rents and other receivables, net	9,422		11,533
Deferred rent, net	120,599		123,058
Deferred costs, net	23,673		25,776
Investment in affiliates	0		0
Prepaid expenses and other assets	48,467		46,422
Total assets	3,312,251		3,034,249
Line of credit	335,997		50,926
Mortgage notes payable, net of deferred financing costs	107,175		110,733
Unsecured term loan, net of deferred financing costs	249,143		249,036
Unsecured notes payable, net of discount and deferred financing costs	838,461		837,323
Accounts payable and accrued liabilities	39,426		36,909
Construction costs payable	74,795		56,428
Accrued interest payable	11,515		11,592
Distribution payable	46,431		46,352
Prepaid rents and other liabilities	67,629		81,062
Total liabilities	1,770,572		1,480,361
Redeemable partnership units	714,494		591,101
Commitments and contingencies	0		0
General Partners' Capital	5,326		6,645
Total partners’ capital	827,185		962,787
Total liabilities and stockholders’ equity	3,312,251		3,034,249
DuPont Fabros Technology, L.P. [Member] \| Operating Partnership [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	0		0
Buildings and improvements	0		0
Income producing property	0		0
Less: accumulated depreciation	0		0
Net income producing property	0		0
Construction in progress and property held for development	0		0
Net real estate	0		0
Cash and cash equivalents	21,062		31,781	266,861	21,697
Rents and other receivables, net	15		1,390
Deferred rent, net	0		0
Deferred costs, net	5,129		6,066
Investment in affiliates	3,001,538		2,713,096
Prepaid expenses and other assets	5,486		3,463
Total assets	3,033,230		2,755,796
Line of credit	335,997		50,926
Mortgage notes payable, net of deferred financing costs	0		0
Unsecured term loan, net of deferred financing costs	249,143		249,036
Unsecured notes payable, net of discount and deferred financing costs	838,461		837,323
Accounts payable and accrued liabilities	9,759		6,477
Construction costs payable	0		0
Accrued interest payable	11,507		11,578
Distribution payable	46,431		46,352
Prepaid rents and other liabilities	253		216
Total liabilities	1,491,551		1,201,908
Redeemable partnership units	714,494		591,101
Commitments and contingencies	0		0
General Partners' Capital	5,326		6,645
Total partners’ capital	827,185		962,787
Total liabilities and stockholders’ equity	3,033,230		2,755,796
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	78,087		80,673
Buildings and improvements	2,333,048		2,332,771
Income producing property	2,411,135		2,413,444
Less: accumulated depreciation	(647,268)		(605,488)
Net income producing property	1,763,867		1,807,956
Construction in progress and property held for development	148,983		88,836
Net real estate	1,912,850		1,896,792
Cash and cash equivalents	0		0	0	0
Rents and other receivables, net	3,803		4,743
Deferred rent, net	101,707		109,142
Deferred costs, net	10,116		11,632
Investment in affiliates	0		0
Prepaid expenses and other assets	29,635		32,479
Total assets	2,058,111		2,054,788
Line of credit	0		0
Mortgage notes payable, net of deferred financing costs	0		0
Unsecured term loan, net of deferred financing costs	0		0
Unsecured notes payable, net of discount and deferred financing costs	0		0
Accounts payable and accrued liabilities	21,804		22,319
Construction costs payable	13,475		10,159
Accrued interest payable	0		0
Distribution payable	0		0
Prepaid rents and other liabilities	48,582		61,429
Total liabilities	83,861		93,907
Redeemable partnership units	0		0
Commitments and contingencies	0		0
General Partners' Capital	0		0
Total partners’ capital	1,974,250		1,960,881
Total liabilities and stockholders’ equity	2,058,111		2,054,788
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Non-Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	29,452		25,217
Buildings and improvements	808,054		685,590
Income producing property	837,506		710,807
Less: accumulated depreciation	(69,451)		(56,695)
Net income producing property	768,055		654,112
Construction in progress and property held for development	402,275		242,147
Net real estate	1,170,330		896,259
Cash and cash equivalents	5,848		2,628	5,960	5,318
Rents and other receivables, net	5,604		5,400
Deferred rent, net	18,892		13,916
Deferred costs, net	8,428		8,078
Investment in affiliates	0		0
Prepaid expenses and other assets	13,346		10,480
Total assets	1,222,448		936,761
Line of credit	0		0
Mortgage notes payable, net of deferred financing costs	107,175		110,733
Unsecured term loan, net of deferred financing costs	0		0
Unsecured notes payable, net of discount and deferred financing costs	0		0
Accounts payable and accrued liabilities	7,863		8,113
Construction costs payable	61,320		46,269
Accrued interest payable	8		14
Distribution payable	0		0
Prepaid rents and other liabilities	18,794		19,417
Total liabilities	195,160		184,546
Redeemable partnership units	0		0
Commitments and contingencies	0		0
General Partners' Capital	0		0
Total partners’ capital	1,027,288		752,215
Total liabilities and stockholders’ equity	1,222,448		936,761
DuPont Fabros Technology, L.P. [Member] \| Eliminations [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Land	0		0
Buildings and improvements	0		0
Income producing property	0		0
Less: accumulated depreciation	0		0
Net income producing property	0		0
Construction in progress and property held for development	0		0
Net real estate	0		0
Cash and cash equivalents	0		0	$ 0	$ 0
Rents and other receivables, net	0		0
Deferred rent, net	0		0
Deferred costs, net	0		0
Investment in affiliates	(3,001,538)		(2,713,096)
Prepaid expenses and other assets	0		0
Total assets	(3,001,538)		(2,713,096)
Line of credit	0		0
Mortgage notes payable, net of deferred financing costs	0		0
Unsecured term loan, net of deferred financing costs	0		0
Unsecured notes payable, net of discount and deferred financing costs	0		0
Accounts payable and accrued liabilities	0		0
Construction costs payable	0		0
Accrued interest payable	0		0
Distribution payable	0		0
Prepaid rents and other liabilities	0		0
Total liabilities	0		0
Redeemable partnership units	0		0
Commitments and contingencies	0		0
General Partners' Capital	0		0
Total partners’ capital	(3,001,538)		(2,713,096)
Total liabilities and stockholders’ equity	(3,001,538)		(2,713,096)
DuPont Fabros Technology, L.P. [Member] \| Series C cumulative redeemable perpetual preferred stock [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	201,250		201,250
DuPont Fabros Technology, L.P. [Member] \| Series C cumulative redeemable perpetual preferred stock [Member] \| Operating Partnership [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	201,250		201,250
DuPont Fabros Technology, L.P. [Member] \| Series C cumulative redeemable perpetual preferred stock [Member] \| Subsidiary Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	0		0
DuPont Fabros Technology, L.P. [Member] \| Series C cumulative redeemable perpetual preferred stock [Member] \| Subsidiary Non-Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	0		0
DuPont Fabros Technology, L.P. [Member] \| Series C cumulative redeemable perpetual preferred stock [Member] \| Eliminations [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	0		0
DuPont Fabros Technology, L.P. [Member] \| Limited partners' common units [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	620,609		754,892
DuPont Fabros Technology, L.P. [Member] \| Limited partners' common units [Member] \| Operating Partnership [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	620,609		754,892
DuPont Fabros Technology, L.P. [Member] \| Limited partners' common units [Member] \| Subsidiary Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	1,974,250		1,960,881
DuPont Fabros Technology, L.P. [Member] \| Limited partners' common units [Member] \| Subsidiary Non-Guarantors [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	1,027,288		752,215
DuPont Fabros Technology, L.P. [Member] \| Limited partners' common units [Member] \| Eliminations [Member]
Supplemental Consolidating Statements Of Balance Sheets [Line Items]
Limited Partners' Capital	$ (3,001,538)		$ (2,713,096)

[1]	(1)Properties located in Ashburn, VA (ACC8, ACC9 Phase II, ACC10, and ACC11), Elk Grove Village, IL (CH3), Santa Clara, CA (SC1 Phase III), Hillsboro, OR (OR1 and OR2), Vaughan, ON (TOR1) and Mesa, AZ (PHX1 and PHX2).

13. Supplemental Consolidatin65

13. Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes Supplemental Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Base rent	$ 92,931	$ 83,362	$ 184,199	$ 165,895
Recoveries from tenants	46,073	41,695	91,368	80,389
Other revenues	1,706	3,481	4,627	6,403
Total revenues	140,710	128,538	280,194	252,687
Expenses:
Property operating costs	41,472	37,933	81,663	73,888
Real estate taxes and insurance	5,029	5,840	10,039	11,156
Depreciation and amortization	28,948	26,323	57,155	52,166
General and administrative	6,276	5,274	13,088	10,849
Business Combination, Acquisition Related Costs	7,128	0	7,128	0
Other expenses	1,307	3,193	4,012	5,542
Total expenses	90,160	78,563	173,085	153,601
Operating income	50,550	49,975	107,109	99,086
Interest:
Expense incurred	(11,793)	(11,563)	(23,252)	(23,132)
Amortization of deferred financing costs	(794)	(919)	(1,619)	(1,764)
Gain on sale of real estate	0	23,064	0	23,064
Net income	37,963	60,557	82,238	97,254
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Net income attributable to common units	34,630	44,766	75,572	74,652
DuPont Fabros Technology, L.P. [Member]
Revenues:
Base rent	92,931	83,362	184,199	165,895
Recoveries from tenants	46,073	41,695	91,368	80,389
Other revenues	1,706	3,481	4,627	6,403
Total revenues	140,710	128,538	280,194	252,687
Expenses:
Property operating costs	41,472	37,933	81,663	73,888
Real estate taxes and insurance	5,029	5,840	10,039	11,156
Depreciation and amortization	28,948	26,323	57,155	52,166
General and administrative	6,276	5,274	13,088	10,849
Business Combination, Acquisition Related Costs	7,128	0	7,128	0
Other expenses	1,307	3,193	4,012	5,542
Total expenses	90,160	78,563	173,085	153,601
Operating income	50,550	49,975	107,109	99,086
Interest:
Expense incurred	(11,793)	(11,563)	(23,252)	(23,132)
Amortization of deferred financing costs	(794)	(919)	(1,619)	(1,764)
Gain on sale of real estate	0	23,064	0	23,064
Equity in earnings	0	0	0	0
Net income	37,963	60,557	82,238	97,254
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments	0	(8,827)	0	(8,827)
Net income attributable to common units	34,630	44,766	75,572	74,652
DuPont Fabros Technology, L.P. [Member] \| Operating Partnership [Member]
Revenues:
Base rent	4,727	4,538	9,422	8,940
Recoveries from tenants	0	0	0	0
Other revenues	0	0	0	0
Total revenues	4,727	4,538	9,422	8,940
Expenses:
Property operating costs	0	0	0	0
Real estate taxes and insurance	0	0	0	0
Depreciation and amortization	49	12	93	27
General and administrative	5,940	5,011	12,486	10,444
Business Combination, Acquisition Related Costs	7,128		7,128
Other expenses	268	865	780	971
Total expenses	13,385	5,888	20,487	11,442
Operating income	(8,658)	(1,350)	(11,065)	(2,502)
Interest:
Expense incurred	(15,941)	(13,916)	(30,811)	(28,090)
Amortization of deferred financing costs	(1,019)	(958)	(2,037)	(1,911)
Gain on sale of real estate		21,874		21,874
Equity in earnings	63,581	54,907	126,151	107,883
Net income	37,963	60,557	82,238	97,254
Preferred stock dividends	(3,333)	(6,964)	(6,666)	(13,775)
Other Preferred Stock Dividends and Adjustments		(8,827)		(8,827)
Net income attributable to common units	34,630	44,766	75,572	74,652
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Guarantors [Member]
Revenues:
Base rent	66,269	67,562	132,961	136,928
Recoveries from tenants	36,305	35,809	72,398	70,184
Other revenues	409	412	829	876
Total revenues	102,983	103,783	206,188	207,988
Expenses:
Property operating costs	36,495	36,130	72,410	71,735
Real estate taxes and insurance	3,894	4,905	7,873	9,601
Depreciation and amortization	21,771	22,301	43,546	44,787
General and administrative	15	28	23	37
Business Combination, Acquisition Related Costs	0		0
Other expenses	8	(117)	20	22
Total expenses	62,183	63,247	123,872	126,182
Operating income	40,800	40,536	82,316	81,806
Interest:
Expense incurred	1,345	123	2,382	123
Amortization of deferred financing costs	93	6	170	6
Gain on sale of real estate		0		0
Equity in earnings	0	0	0	0
Net income	42,238	40,665	84,868	81,935
Preferred stock dividends	0	0	0	0
Other Preferred Stock Dividends and Adjustments		0		0
Net income attributable to common units	42,238	40,665	84,868	81,935
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Non-Guarantors [Member]
Revenues:
Base rent	26,662	15,825	51,238	29,029
Recoveries from tenants	9,768	5,886	18,970	10,205
Other revenues	1,297	3,090	3,798	5,572
Total revenues	37,727	24,801	74,006	44,806
Expenses:
Property operating costs	9,704	6,362	18,675	11,138
Real estate taxes and insurance	1,135	935	2,166	1,555
Depreciation and amortization	7,128	4,010	13,516	7,352
General and administrative	321	235	579	368
Business Combination, Acquisition Related Costs	0		0
Other expenses	1,031	2,470	3,212	4,611
Total expenses	19,319	14,012	38,148	25,024
Operating income	18,408	10,789	35,858	19,782
Interest:
Expense incurred	2,803	2,230	5,177	4,835
Amortization of deferred financing costs	132	33	248	141
Gain on sale of real estate		1,190		1,190
Equity in earnings	0	0	0	0
Net income	21,343	14,242	41,283	25,948
Preferred stock dividends	0	0	0	0
Other Preferred Stock Dividends and Adjustments		0		0
Net income attributable to common units	21,343	14,242	41,283	25,948
DuPont Fabros Technology, L.P. [Member] \| Eliminations [Member]
Revenues:
Base rent	(4,727)	(4,563)	(9,422)	(9,002)
Recoveries from tenants	0	0	0	0
Other revenues	0	(21)	0	(45)
Total revenues	(4,727)	(4,584)	(9,422)	(9,047)
Expenses:
Property operating costs	(4,727)	(4,559)	(9,422)	(8,985)
Real estate taxes and insurance	0	0	0	0
Depreciation and amortization	0	0	0	0
General and administrative	0	0	0	0
Business Combination, Acquisition Related Costs	0		0
Other expenses	0	(25)	0	(62)
Total expenses	(4,727)	(4,584)	(9,422)	(9,047)
Operating income	0	0	0	0
Interest:
Expense incurred	0	0	0	0
Amortization of deferred financing costs	0	0	0	0
Gain on sale of real estate		0		0
Equity in earnings	(63,581)	(54,907)	(126,151)	(107,883)
Net income	(63,581)	(54,907)	(126,151)	(107,883)
Preferred stock dividends	0	0	0	0
Other Preferred Stock Dividends and Adjustments		0		0
Net income attributable to common units	$ (63,581)	$ (54,907)	$ (126,151)	$ (107,883)

13. Supplemental Consolidatin66

13. Supplemental Consolidating Financial Data for Subsidiary Guarantors of the Unsecured Notes Supplemental Consodlidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ 137,343	$ 124,441
Proceeds from Sale of Property, Plant, and Equipment	0	123,545
Investments in real estate – development	(301,504)	(101,867)
Payments to Acquire Real Estate	(12,250)	0
Land acquisition costs - related party	0	(20,168)
Interest capitalized for real estate under development	(8,895)	(6,118)
Improvements to real estate	(418)	(3,098)
Additions to non-real estate property	(196)	(426)
Net cash used in investing activities	(323,263)	(8,132)
Proceeds	282,432	60,000
Repayments of Lines of Credit	0	(60,000)
Repayments of Secured Debt	(3,750)	(1,250)
Payments of financing Costs	110	96
Issuance of common stock, net of offering costs	0	275,720
Proceeds from Issuance of Redeemable Preferred Stock	0	194,502
Payments for Repurchase of Redeemable Preferred Stock	0	(251,250)
Equity compensation (payments) proceeds	(4,041)	8,285
Net cash provided by financing activities	178,421	129,497
Net increase (decrease) in cash and cash equivalents	(7,499)	245,806
Cash and cash equivalents, beginning	38,624	31,230
Cash and cash equivalents, ending	31,125	277,036
DuPont Fabros Technology, L.P. [Member]
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net cash (used in) provided by operating activities before return on investment in subsidiaries	137,343
Return on investment in subsidiaries	0
Net Cash Provided by (Used in) Operating Activities	137,343	124,441
Proceeds from Sale of Property, Plant, and Equipment	0	123,545
Investments in real estate – development	(301,504)	(101,867)
Payments to Acquire Real Estate	(12,250)	0
Land acquisition costs - related party	0	(20,168)
Investments in affiliates	0	0
Interest capitalized for real estate under development	8,895	6,118
Improvements to real estate	(418)	(3,098)
Additions to non-real estate property	(196)	(426)
Net cash used in investing activities	(323,263)	(8,132)
Proceeds	282,432	60,000
Repayments of Lines of Credit	0	(60,000)
Repayments of Secured Debt	(3,750)	(1,250)
Payments of financing Costs	110	96
Issuance of common stock, net of offering costs	0	275,720
Proceeds from Issuance of Redeemable Preferred Stock	0	194,502
Payments for Repurchase of Redeemable Preferred Stock	0	(251,250)
Equity compensation (payments) proceeds	(4,041)	8,285
Proceeds from Contributions from Parent	0
Distribution to parent	0
Distributions	(96,110)	(96,414)
Net cash provided by financing activities	178,421	129,497
Net increase (decrease) in cash and cash equivalents	(7,499)	245,806
Cash and cash equivalents, beginning	34,409	27,015
Cash and cash equivalents, ending	26,910	272,821
DuPont Fabros Technology, L.P. [Member] \| Operating Partnership [Member]
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net cash (used in) provided by operating activities before return on investment in subsidiaries	(38,620)
Return on investment in subsidiaries	175,963
Net Cash Provided by (Used in) Operating Activities	137,343	(30,954)
Proceeds from Sale of Property, Plant, and Equipment		0
Investments in real estate – development	0	(452)
Payments to Acquire Real Estate	0
Land acquisition costs - related party		0
Investments in affiliates	(330,131)	146,000
Interest capitalized for real estate under development	0	2
Improvements to real estate	0	0
Additions to non-real estate property	(127)	(200)
Net cash used in investing activities	(330,258)	145,346
Proceeds	282,432	60,000
Repayments of Lines of Credit		(60,000)
Repayments of Secured Debt	0	0
Payments of financing Costs	85	71
Issuance of common stock, net of offering costs		275,720
Proceeds from Issuance of Redeemable Preferred Stock		194,502
Payments for Repurchase of Redeemable Preferred Stock		(251,250)
Equity compensation (payments) proceeds	(4,041)	8,285
Proceeds from Contributions from Parent	0
Distribution to parent	0
Distributions	(96,110)	(96,414)
Net cash provided by financing activities	182,196	130,772
Net increase (decrease) in cash and cash equivalents	(10,719)	245,164
Cash and cash equivalents, beginning	31,781	21,697
Cash and cash equivalents, ending	21,062	266,861
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Guarantors [Member]
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net cash (used in) provided by operating activities before return on investment in subsidiaries	125,715
Return on investment in subsidiaries	0
Net Cash Provided by (Used in) Operating Activities	125,715	120,759
Proceeds from Sale of Property, Plant, and Equipment		120,086
Investments in real estate – development	(168,677)	(43)
Payments to Acquire Real Estate	0
Land acquisition costs - related party		0
Investments in affiliates	0	(237,391)
Interest capitalized for real estate under development	2,383	123
Improvements to real estate	(401)	(3,098)
Additions to non-real estate property	(33)	(190)
Net cash used in investing activities	(171,494)	(120,759)
Proceeds	0	0
Repayments of Lines of Credit		0
Repayments of Secured Debt	0	0
Payments of financing Costs	0	0
Issuance of common stock, net of offering costs		0
Proceeds from Issuance of Redeemable Preferred Stock		0
Payments for Repurchase of Redeemable Preferred Stock		0
Equity compensation (payments) proceeds	0	0
Proceeds from Contributions from Parent	171,494
Distribution to parent	125,715
Distributions	0	0
Net cash provided by financing activities	45,779	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning	0	0
Cash and cash equivalents, ending	0	0
DuPont Fabros Technology, L.P. [Member] \| Subsidiary Non-Guarantors [Member]
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net cash (used in) provided by operating activities before return on investment in subsidiaries	50,248
Return on investment in subsidiaries	0
Net Cash Provided by (Used in) Operating Activities	50,248	34,636
Proceeds from Sale of Property, Plant, and Equipment		3,459
Investments in real estate – development	(132,827)	(101,372)
Payments to Acquire Real Estate	(12,250)
Land acquisition costs - related party		(20,168)
Investments in affiliates	0	91,391
Interest capitalized for real estate under development	6,512	5,993
Improvements to real estate	(17)	0
Additions to non-real estate property	(36)	(36)
Net cash used in investing activities	(151,642)	(32,719)
Proceeds	0	0
Repayments of Lines of Credit		0
Repayments of Secured Debt	(3,750)	(1,250)
Payments of financing Costs	25	25
Issuance of common stock, net of offering costs		0
Proceeds from Issuance of Redeemable Preferred Stock		0
Payments for Repurchase of Redeemable Preferred Stock		0
Equity compensation (payments) proceeds	0	0
Proceeds from Contributions from Parent	158,637
Distribution to parent	50,248
Distributions	0	0
Net cash provided by financing activities	104,614	(1,275)
Net increase (decrease) in cash and cash equivalents	3,220	642
Cash and cash equivalents, beginning	2,628	5,318
Cash and cash equivalents, ending	5,848	5,960
DuPont Fabros Technology, L.P. [Member] \| Eliminations [Member]
Supplemental Consolidating Statements Of Cash Flows [Line Items]
Net cash (used in) provided by operating activities before return on investment in subsidiaries	0
Return on investment in subsidiaries	(175,963)
Net Cash Provided by (Used in) Operating Activities	(175,963)	0
Proceeds from Sale of Property, Plant, and Equipment		0
Investments in real estate – development	0	0
Payments to Acquire Real Estate	0
Land acquisition costs - related party		0
Investments in affiliates	330,131	0
Interest capitalized for real estate under development	0	0
Improvements to real estate	0	0
Additions to non-real estate property	0	0
Net cash used in investing activities	330,131	0
Proceeds	0	0
Repayments of Lines of Credit		0
Repayments of Secured Debt	0	0
Payments of financing Costs	0	0
Issuance of common stock, net of offering costs		0
Proceeds from Issuance of Redeemable Preferred Stock		0
Payments for Repurchase of Redeemable Preferred Stock		0
Equity compensation (payments) proceeds	0	0
Proceeds from Contributions from Parent	(330,131)
Distribution to parent	(175,963)
Distributions	0	0
Net cash provided by financing activities	(154,168)	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning	0	0
Cash and cash equivalents, ending	$ 0	$ 0