10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2014

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period ___________ to ___________

Commission File Number: 001-35789 (CyrusOne Inc.)

Commission File Number: 333-188426 (CyrusOne LP)

CyrusOne Inc.

CyrusOne LP

(Exact name of registrant as specified in its charter)

Maryland (CyrusOne Inc.)	46-0691837
Maryland (CyrusOne LP)	46-0982896
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1649 West Frankford Road, Carrollton, TX 75007

(Address of Principal Executive Offices) (Zip Code)

(972) 350-0060

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    

CyrusOne Inc. Yes  ý    No  ¨

CyrusOne LP Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    

CyrusOne Inc. Yes  ý    No  ¨

CyrusOne LP Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

CyrusOne Inc.
Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	ý	Smaller reporting company	¨

CyrusOne LP
Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	ý	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    

CyrusOne Inc. Yes  ¨    No  ý

CyrusOne LP Yes  ¨    No  ý

CyrusOne Inc.

There were 38,660,973shares of common stock outstanding as of August 1, 2014 with a par value of $0.01 per share.

EXPLANATORY NOTE

This report combines the quarterly reports on Form 10-Q for the quarter ended June 30, 2014 of CyrusOne Inc., a Maryland corporation, and CyrusOne LP, a Maryland limited partnership, of which CyrusOne GP, a Maryland statutory trust of which CyrusOne Inc. is the sole beneficial owner and sole trustee, is the sole general partner. 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 CyrusOne Inc. together with its consolidated subsidiaries, including CyrusOne LP. Unless otherwise indicated or unless the context requires otherwise, all references to “our operating partnership” or “the operating partnership” refer to CyrusOne LP together with its consolidated subsidiaries.

CyrusOne Inc. is a real estate investment trust, or REIT, and the sole beneficial owner and sole trustee of CyrusOne GP, which is the sole general partner of CyrusOne LP. As of June 30, 2014, CyrusOne Inc., together with CyrusOne GP, owned approximately 59.2% of the operating partnership units in CyrusOne LP. The remaining approximately 40.8% of the operating partnership units in CyrusOne LP, which is reflected as a noncontrolling interest, is owned by our former parent, Cincinnati Bell Inc. (“CBI”). As the sole beneficial owner and sole trustee of CyrusOne GP, which is the sole general partner of CyrusOne LP, CyrusOne Inc. has the full, exclusive and complete responsibility for the operating partnership's day-to-day management and control.

We believe combining the quarterly reports of CyrusOne Inc. and CyrusOne LP into this single report on Form 10-Q results in the following benefits:

• enhancing investors' understanding of our Company and our operating partnership by enabling investors to view the business as a whole in the same manner as management views and operates the business;

• eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to both the Company and the operating partnership; and

• creating time and cost efficiencies through the preparation of one combined report instead of two separate reports.

There are a few differences between our Company and our operating partnership, which are reflected in the disclosures in this report. We believe it is important to understand the differences between our Company and our operating partnership in the context of how we operate as an interrelated consolidated company. CyrusOne Inc. is a REIT, whose only material asset is its ownership of operating partnership units of CyrusOne LP. As a result, CyrusOne Inc. does not conduct business itself, other than acting as the sole trustee of CyrusOne GP, issuing public equity from time to time and guaranteeing certain debt of CyrusOne LP. CyrusOne Inc. itself does not issue any indebtedness but guarantees the debt of CyrusOne LP, as disclosed in this report. CyrusOne LP holds substantially all the assets of the Company. CyrusOne LP conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by CyrusOne Inc., which are generally contributed to CyrusOne LP in exchange for operating partnership units, CyrusOne LP generates the capital required by the Company's business through CyrusOne LP's operations and by CyrusOne LP's incurrence of indebtedness or through the issuance of partnership units.

The presentation of noncontrolling interest, shareholders' equity and partnership capital are the main areas of difference between the condensed consolidated financial statements of CyrusOne Inc. and those of CyrusOne LP. The operating partnership units held by CBI in CyrusOne LP are presented as partnership capital in CyrusOne LP's condensed consolidated financial statements and as noncontrolling interest within equity in CyrusOne Inc.'s condensed consolidated financial statements. The operating partnership units held by CyrusOne Inc. in CyrusOne LP are presented as partnership capital in CyrusOne LP's condensed consolidated financial statements and as common stock and additional paid in capital within shareholders' equity in CyrusOne Inc.'s condensed consolidated financial statements. The differences in the presentations between shareholders' equity and partnership capital result from the differences in the equity issued at the CyrusOne Inc. and the CyrusOne LP levels.

To help the investors understand the significant differences between the Company and the operating partnership, this report presents the condensed consolidated financial statements separately for the Company and the operating partnership.

As sole beneficial owner and sole trustee of CyrusOne GP, which is the sole general partner with control of the operating partnership, CyrusOne Inc. consolidates the operating partnership for financial reporting purposes, and it does not have significant assets other than its investment in the operating partnership. Therefore, the assets and liabilities of CyrusOne Inc. and CyrusOne LP are the same on their respective condensed consolidated financial statements. The separate discussions of CyrusOne Inc. and CyrusOne LP in this report should be read in conjunction with each other to understand the results of the Company on a consolidated basis and how management operates the Company.

In order to establish that the Chief Executive Officer and the Chief Financial Officer of each entity have made the requisite certifications and that the Company and the operating partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934 and with 18 U.S.C. §1350, this report also includes separate Item 4. Controls and Procedures sections and separate Exhibits 31 and 32 certifications for each of the Company and the operating partnership.

All other sections of this report, including select footnotes, Management's Discussion and Analysis of Financial Condition, Results of Operations and Quantitative and Qualitative Disclosures About Market Risk, are presented together for CyrusOne Inc. and CyrusOne LP.

INDEX

	Page
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)	6
CyrusOne Inc. Condensed Consolidated Balance Sheets as of June 30, 2014 and December 31, 2013	6
CyrusOne Inc. Condensed Consolidated and Combined Statements of Operations for the Three Months Ended June 30, 2014 and 2013, the Six Months Ended June 30, 2014, the Period Ended June 30, 2013 (January 24, 2013 to June 30, 2013), and Combined Statement of Operations for the period ended January 23, 2013 (January 1, 2013 to January 23, 2013)	7
CyrusOne Inc. Condensed Consolidated Statement of Equity for the Six Months Ended June 30, 2014 and June 30, 2013	8
CyrusOne Inc. Condensed Consolidated and Combined Statements of Cash Flows for the Six Months Ended June 30, 2014, the Period Ended June 30, 2013 (January 24, 2013 to June 30, 2013), and Combined Statement of Cash Flows for the period ended January 23, 2013 (January 1, 2013 to January 23, 2013)	9
CyrusOne LP Condensed Consolidated Balance Sheets as of June 30, 2014 and December 31, 2013	11
CyrusOne LP Condensed Consolidated and Combined Statements of Operations for the Three Months Ended June 30, 2014 and 2013, the Six Months Ended June 30, 2014, the Period Ended June 30, 2013 (January 24, 2013 to June 30, 2013), and Combined Statement of Operations for the period ended January 23, 2013 (January 1, 2013 to January 23, 2013)	12
CyrusOne LP Condensed Consolidated Statement of Partnership Capital for the Six Months Ended June 30, 2014	13
CyrusOne LP Condensed Consolidated and Combined Statements of Cash Flows for the Six Months Ended June 30, 2014, the Period Ended June 30, 2013 (January 24, 2013 to June 30, 2013), and Combined Statement of Cash Flows for the period ended January 23, 2013 (January 1, 2013 to January 23, 2013)	14
Notes to CyrusOne Inc. and CyrusOne LP Condensed Consolidated and Combined Financial Statements	16
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	50
Item 3. Quantitative and Qualitative Disclosures About Market Risk	62
Item 4. Controls and Procedures (CyrusOne Inc. and CyrusOne LP)	63
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	64
Item 1A. Risk Factors	64
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	64
Item 3. Defaults Upon Senior Securities	64
Item 4. Mine Safety Disclosures	64
Item 5. Other Information	64
Item 6. Exhibits	65

PART I—FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

CyrusOne Inc.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited and in millions, except share amounts)

	As of			As of
	June 30, 2014			December 31, 2013
Assets
Investment in real estate:
Land	$	89.7		$	89.3
Buildings and improvements	791.7			783.7
Equipment	298.8			190.2
Construction in progress	59.5			57.3
Subtotal	1,239.7			1,120.5
Accumulated depreciation	(280.6		)	(236.7		)
Net investment in real estate	959.1			883.8
Cash and cash equivalents	49.3			148.8
Rent and other receivables, net of allowance for doubtful accounts of $1.1 and $0.5 as of June 30, 2014, and December 31, 2013, respectively	61.5			41.2
Goodwill	276.2			276.2
Intangible assets, net of accumulated amortization of $63.6 and $55.1 as of June 30, 2014, and December 31, 2013, respectively	77.4			85.9
Due from affiliates	0.5			0.6
Other assets	82.1			70.3
Total assets	$	1,506.1		$	1,506.8
Liabilities and equity
Accounts payable and accrued expenses	$	83.9		$	66.8
Deferred revenue	66.7			55.9
Due to affiliates	7.4			8.5
Capital lease obligations	15.0			16.7
Long-term debt	525.0			525.0
Other financing arrangements	57.1			56.3
Commitment and contingencies	—			—
Total liabilities	755.1			729.2
Commitment and contingencies
Equity
Preferred stock, $.01 par value, 100,000,000 authorized; no shares issued or outstanding	—			—
Common stock, $.01 par value, 500,000,000 shares authorized and 38,658,249 and 21,991,669 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	0.4			0.2
Additional paid in capital	511.1			340.7
Accumulated deficit	(32.7		)	(18.9		)
Total shareholders’ equity	478.8			322.0
Noncontrolling interest	272.2			455.6
Total equity	751.0			777.6
Total liabilities and equity	$	1,506.1		$	1,506.8

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

6

CyrusOne Inc.

CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS

(unaudited and in millions, except per share data)

	Successor			Successor			Successor			Successor			Predecessor
	Three Months Ended June 30, 2014			Three Months Ended June 30, 2013			Six Months Ended June 30, 2014			January 24, 2013 to June 30, 2013			January 1, 2013 to January 23, 2013
Revenue	$	81.7		$	63.6		$	159.2		$	108.6		$	15.1
Costs and expenses:
Property operating expenses	31.8			24.6			59.5			39.9			4.8
Sales and marketing	3.5			2.9			6.5			5.0			0.7
General and administrative	8.4			7.1			15.7			12.5			1.5
Depreciation and amortization	29.8			23.0			57.4			39.4			5.3
Transaction costs	0.8			0.4			0.9			0.4			0.1
Transaction-related compensation	—			—			—			—			20.0
Total costs and expenses	74.3			58.0			140.0			97.2			32.4
Operating income (loss)	7.4			5.6			19.2			11.4			(17.3		)
Interest expense	10.7			10.8			21.4			19.2			2.5
Loss on extinguishment of debt	—			1.3			—			1.3			—
Net loss before income taxes	(3.3		)	(6.5		)	(2.2		)	(9.1		)	(19.8		)
Income tax expense	(0.3		)	(0.3		)	(0.7		)	(0.5		)	(0.4		)
Net loss	(3.6		)	(6.8		)	(2.9		)	(9.6		)	$	(20.2	)
Noncontrolling interest in net loss	(2.5		)	(4.5		)	(2.0		)	(6.4		)
Net loss attributed to common shareholders	$	(1.1	)	$	(2.3	)	$	(0.9	)	$	(3.2	)
Basic weighted average common shares outstanding	21.7			20.9			21.3			20.9
Diluted weighted average common shares outstanding	21.7			20.9			21.3			20.9
Loss per share - basic and diluted	$	(0.06	)	$	(0.12	)	$	(0.06	)	$	(0.17	)
Dividend declared per share	$	0.21		$	0.16		$	0.42		$	0.32

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

7

CyrusOne Inc.

CONDENSED CONSOLIDATED STATEMENT OF EQUITY

(unaudited and in millions)

	Common Stock Issued			Additional Paid In Capital			Accumulated Deficit			Partnership Capital			Total Shareholders' Equity/ Parent’s Net Investment			Non- controlling Interest			Total Equity
	Shares	Amount
Balance at January 1, 2013	—	$	—	$	7.1		$	—		$	493.0		$	500.1		$	—		$	500.1
Net loss—January 1, 2013 to January 23, 2013	—	—		—			—			(20.2		)	(20.2		)	—			(20.2		)
Other contributions from Parent	—	—		—			—			1.3			1.3			—			1.3
Contributions from Parent—Transaction compensation expense reimbursement	—	—		—			—			19.6			19.6			—			19.6
Noncontrolling interest effective January 24, 2013	—	—		(7.1		)	—			(493.7		)	(500.8		)	500.8			—
Common stock issued	19.0	0.2		336.9			—			—			337.1			—			337.1
Common stock issued to CBI in exchange for operating partnership units	1.5	—		—			—			—			—			—			—
Common stock issued to CBI in exchange for settlement of IPO costs paid by CBI	0.4	—		7.1			—			—			7.1			(7.1		)	—
IPO costs	—	—		(9.5		)	—			—			(9.5		)	—			(9.5		)
Restricted shares issued	1.2	—		—			—			—			—			—			—
Net loss—January 24, 2013 to June 30, 2013	—	—		—			(9.6		)	—			(9.6		)	—			(9.6		)
Noncontrolling interest allocated net loss	—	—		—			6.4			—			6.4			(6.4		)	—
Stock-based compensation	—	—		3.0			—			—			3.0			—			3.0
Dividends declared, $0.32 per share	—	—		—			(6.5		)	—			(6.5		)	(14.1		)	(20.6		)
Balance at June 30, 2013	22.1	$	0.2	$	337.5		$	(9.7	)	$	—		$	328.0		$	473.2		$	801.2
Balance January 1, 2014	22.0	$	0.2	$	340.7		$	(18.9	)	$	—		$	322.0		$	455.6		$	777.6
Net loss	—	—		—			(2.9		)	—			(2.9		)	—			(2.9		)
Noncontrolling interest allocated net loss	—	—		—			2.0			—			2.0			(2.0		)	—
Stock issuance costs	—	—		(1.3		)	—			—			(1.3		)	—			(1.3		)
Restricted shares issued under long-term incentive plan	0.7	—		—			—			—			—			—			—
Stock-based compensation	—	—		5.0			—			—			5.0			—			5.0
Issuance of common stock	16.0	0.2		355.7			—			—			355.9			—			355.9
Redemption of noncontrolling interest	—	—		(189.0		)	—			—			(189.0		)	(166.9		)	(355.9		)
Dividends declared, $0.42 per share	—	—		—			(12.9		)	—			(12.9		)	(14.5		)	(27.4		)
Balance at June 30, 2014	38.7	$	0.4	$	511.1		$	(32.7	)	$	—		$	478.8		$	272.2		$	751.0

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

8

CyrusOne Inc.

CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS

(unaudited and in millions)

	Successor			Successor			Predecessor
	Six Months Ended June 30, 2014			January 24, 2013 to June 30, 2013			January 1, 2013 to January 23, 2013
Cash flows from operating activities:
Net loss	$	(2.9	)	$	(9.6	)	$	(20.2	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	57.4			39.4			5.3
Noncash interest expense	1.8			1.0			0.1
Stock-based compensation expense	5.0			3.0			0.2
Provision for bad debt write off	0.6			—			—
Deferred income tax expense, including valuation allowance charge	—			—			0.3
Loss on extinguishment of debt	—			1.3			—
Change in operating assets and liabilities, net of effect of acquisitions:
Rent receivables and other assets	(31.4		)	10.0			(9.6		)
Accounts payable and accrued expenses	2.5			(19.1		)	20.5
Deferred revenues	10.8			(3.2		)	3.2
Due to affiliates	0.2			16.7			1.5
Other	—			—			0.7
Net cash provided by operating activities	44.0			39.5			2.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate	—			(26.6		)	—
Capital expenditures – other development	(116.8		)	(67.0		)	(7.7		)
Release of restricted cash	—			4.4			1.9
Net cash used in investing activities	(116.8		)	(89.2		)	(5.8		)
Cash flows from financing activities:
Issuance of common stock	355.9			360.5			—
Stock issuance costs	(0.5		)	—			—
IPO costs	—			(23.4		)	—
Acquisition of operating partnership units	(355.9		)	—			—
Dividends paid	(24.0		)	(10.3		)	—
Payments on capital leases and other financing arrangements	(2.2		)	(2.5		)	(0.6		)
Payments to buyout capital leases	—			(9.6		)	—
Payments to buyout other financing arrangements	—			(10.2		)	—
Contributions from parent, net	—			—			0.2
Net cash (used in) provided by financing activities	(26.7		)	304.5			(0.4		)
Net (decrease) increase in cash and cash equivalents	(99.5		)	254.8			(4.2		)
Cash and cash equivalents at beginning of period	148.8			12.3			16.5
Cash and cash equivalents at end of period	$	49.3		$	267.1		$	12.3
Supplemental disclosures
Cash paid for interest, net of amount capitalized	$	20.5		$	19.9		$	0.3

9

Capitalized interest	0.9	1.1	—
Acquisition of property in accounts payable and other liabilities	45.0	29.6	15.7
Assumed liabilities in buyout of other financing obligation lease	—	0.2	—
Contribution receivable from Parent related to transaction-related compensation	—	—	19.6
Dividends payable	13.7	10.3	—
Stock issuance costs	0.8	—	—
Deferred IPO costs	—	—	1.7
Deferred IPO costs reclassified to additional paid in capital	—	9.5	—

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

10

CyrusOne LP

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited and in millions)

	As of			As of
	June 30, 2014			December 31, 2013
Assets
Investment in real estate:
Land	$	89.7		$	89.3
Buildings and improvements	791.7			783.7
Equipment	298.8			190.2
Construction in progress	59.5			57.3
Subtotal	1,239.7			1,120.5
Accumulated depreciation	(280.6		)	(236.7		)
Net investment in real estate	959.1			883.8
Cash and cash equivalents	49.3			148.8
Rent and other receivables, net of allowance for doubtful accounts of $1.1 and $0.5 as of June 30, 2014, and December 31, 2013, respectively	61.5			41.2
Goodwill	276.2			276.2
Intangible assets, net of accumulated amortization of $63.6 and $55.1 as of June 30, 2014, and December 31, 2013, respectively	77.4			85.9
Due from affiliates	0.5			0.6
Other assets	82.1			70.3
Total assets	$	1,506.1		$	1,506.8
Liabilities and partnership capital
Accounts payable and accrued expenses	$	83.9		$	66.8
Deferred revenue	66.7			55.9
Due to affiliates	7.4			8.5
Capital lease obligations	15.0			16.7
Long-term debt	525.0			525.0
Other financing arrangements	57.1			56.3
Total liabilities	755.1			729.2
Commitments and contingencies
Partnership capital	751.0			777.6
Total liabilities and partnership capital	$	1,506.1		$	1,506.8

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

11

CyrusOne LP

CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS

(unaudited and in millions )

	Successor			Successor			Successor			Successor			Predecessor
	Three Months Ended June 30, 2014			Three Months Ended June 30, 2013			Six Months Ended June 30, 2014			January 24, 2013 to June 30, 2013			January 1, 2013 to January 23, 2013
Revenue	$	81.7		$	63.6		$	159.2		$	108.6		$	15.1
Costs and expenses:
Property operating expenses	31.8			24.6			59.5			39.9			4.8
Sales and marketing	3.5			2.9			6.5			5.0			0.7
General and administrative	8.4			7.1			15.7			12.5			1.5
Depreciation and amortization	29.8			23.0			57.4			39.4			5.3
Transaction costs	0.8			0.4			0.9			0.4			0.1
Transaction-related compensation	—			—			—			—			20.0
Total costs and expenses	74.3			58.0			140.0			97.2			32.4
Operating income (loss)	7.4			5.6			19.2			11.4			(17.3		)
Interest expense	10.7			10.8			21.4			19.2			2.5
Loss on extinguishment of debt	—			1.3			—			1.3			—
Net loss before income taxes	(3.3		)	(6.5		)	(2.2		)	(9.1		)	(19.8		)
Income tax expense	(0.3		)	(0.3		)	(0.7		)	(0.5		)	(0.4		)
Net loss	$	(3.6	)	$	(6.8	)	$	(2.9	)	$	(9.6	)	$	(20.2	)

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

12

CyrusOne LP

CONDENSED CONSOLIDATED STATEMENT OF PARTNERSHIP CAPITAL

(unaudited and in millions)

	Partnership Units		Partnership Capital
Balance January 1, 2014	64.6		$	777.6
Net loss	—		(2.9		)
Compensation expense of CyrusOne Inc. allocated to Operating Partnership	—		5.0
Partnership units issued to CyrusOne Inc.	0.7		—
Partnership units purchased by CyrusOne Inc.	16.0		355.9
Partnership units sold by CBI	(16.0	)	(355.9		)
Distributions to CyrusOne Inc.	—		(1.3		)
Partnership distributions	—		(27.4		)
Balance at June 30, 2014	65.3		$	751.0

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

13

CyrusOne LP

CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS

(unaudited and in millions)

	Successor			Successor			Predecessor
	Six Months Ended June 30, 2014			January 24, 2013 to June 30, 2013			January 1, 2013 to January 23, 2013
Cash flows from operating activities:
Net loss	$	(2.9	)	$	(9.6	)	$	(20.2	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	57.4			39.4			5.3
Noncash interest expense	1.8			1.0			0.1
Stock-based compensation expense	5.0			3.0			0.2
Provision for bad debt write off	0.6			—			—
Deferred income tax expense, including valuation allowance charge	—			—			0.3
Loss on extinguishment of debt	—			1.3			—
Change in operating assets and liabilities, net of effect of acquisitions:
Rent receivables and other assets	(31.4		)	10.0			(9.6		)
Accounts payable and accrued expenses	2.5			(19.1		)	20.5
Deferred revenues	10.8			(3.2		)	3.2
Due to affiliates	0.2			16.7			1.5
Other	—			—			0.7
Net cash provided by operating activities	44.0			39.5			2.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate	—			(26.6		)	—
Capital expenditures – other development	(116.8		)	(67.0		)	(7.7		)
Release of restricted cash	—			4.4			1.9
Net cash used in investing activities	(116.8		)	(89.2		)	(5.8		)
Cash flows from financing activities:
Issuance of partnership units	—			337.1			—
Distributions paid	(24.0		)	(10.3		)	—
Payments on capital leases and other financing arrangements	(2.2		)	(2.5		)	(0.6		)
Payments to buyout of capital leases	—			(9.6		)	—
Payments to buyout other financing arrangements	—			(10.2		)	—
Distributions to CyrusOne Inc.	(0.5		)	—			—
Contributions from parent, net	—			—			0.2
Net cash (used in) provided by financing activities	(26.7		)	304.5			(0.4		)
Net (decrease) increase in cash and cash equivalents	(99.5		)	254.8			(4.2		)
Cash and cash equivalents at beginning of period	148.8			12.3			16.5
Cash and cash equivalents at end of period	$	49.3		$	267.1		$	12.3
Supplemental disclosures
Cash paid for interest, net of amount capitalized	$	20.5		$	19.9		$	0.3
Capitalized interest	0.9			1.1			—
Acquisition of property in accounts payable and other liabilities	45.0			29.6			15.7
Assumed liabilities in buyout of other financing obligation lease	—			0.2			—

14

Contribution receivable from Parent related to transaction-related compensation	—	—	19.6
Distribution payable	13.7	10.3	—
Other contributions from Parent	—	1.3	1.7
Distribution payable to CyrusOne Inc.	0.8	2.4	—

The accompanying notes are an integral part of the condensed consolidated and combined financial statements.

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NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

1. Description of Business

CyrusOne Inc., together with CyrusOne GP, a wholly-owned subsidiary of CyrusOne Inc., through which CyrusOne Inc. holds a controlling interest in CyrusOne LP (the “Operating Partnership”) and the subsidiaries of the Operating Partnership (collectively, “CyrusOne”, “we”, “us”, “our”, and the “Company”) is an owner, operator and developer of enterprise-class, carrier-neutral data center properties. Our customers operate in a number of industries, including energy, oil and gas, mining, medical, technology, finance and consumer goods and services. We currently operate 25 data centers located in the United States, United Kingdom and Singapore.

2. Formation

Prior to November 20, 2012, CyrusOne was not an operative legal entity or a combination of legal entities. The data center assets and operations prior to such date were owned by Cincinnati Bell Inc. (“CBI”) and, unless the context otherwise requires, its consolidated subsidiaries, which assets and operations historically have been maintained in various legal entities, some of which had significant unrelated business activities. On November 20, 2012, the Operating Partnership received a contribution of interests in real estate properties and the assumption of debt and other specified liabilities from CBI in exchange for the issuance of 123,688,687 operating partnership units to CBI.

On January 24, 2013, CyrusOne Inc. completed its initial public offering (“IPO”) of common stock, issuing approximately 19.0 million shares for $337.1 million, net of underwriters' discounts. At that time the Operating Partnership executed a 2.8 to 1.0 reverse unit split, resulting in CBI owning 44.1 million Operating Partnership units. In addition, CBI exchanged approximately 1.5 million of its Operating Partnership units for 1.5 million shares of CyrusOne Inc. common stock, and CBI was issued 0.4 million shares of CyrusOne Inc. common stock in repayment for transaction costs paid by CBI. CyrusOne Inc. also issued approximately 1.0 million shares of restricted stock to its directors and employees. In addition, on January 24, 2013, CyrusOne Inc., together with CyrusOne GP, purchased approximately 21.9 million or 33.9% of the Operating Partnership’s units for $337.1 million and through CyrusOne GP assumed the controlling interest in the Operating Partnership. CBI retained a noncontrolling interest in the Operating Partnership of 66.1%.

On June 25, 2014, CyrusOne Inc. completed a public offering of 15,985,000 shares of its common stock, including 2,085,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares, at a price to the public of $23.25 per share or $371.7 million. CyrusOne Inc. used the proceeds of $355.9 million, net of underwriting costs of $15.8 million, to acquire 15,985,000 common units of limited partnership interests in the Operating Partnership from a subsidiary of CBI.

As of June 30, 2014, the total number of outstanding partnership units was 65.3 million and CBI holds a 40.8% noncontrolling interest in the Operating Partnership. CBI effectively owns approximately 43.7% of CyrusOne through its interest in outstanding shares of common stock of CyrusOne Inc. and its interest in the Operating Partnership units of CyrusOne LP.

3. Basis of Presentation

The accompanying financial statements as of June 30, 2014 and December 31, 2013, and for the three and six months ended June 30, 2014 and for the three months ended June 30, 2013 and for the period from January 24, 2013 to June 30, 2013, are prepared on a consolidated basis and are presented as the “Successor” financial statements. The financial statements for the period from January 1, 2013 to January 23, 2013 ("Predecessor Period") were prepared on a combined basis using CBI’s historical basis in the assets and liabilities of its data center business and are presented as the “Predecessor” financial statements. The Predecessor financial statements include all revenues, costs, assets and liabilities directly attributable to the data center business. In addition, certain expenses reflected in the Predecessor financial statements include allocations of corporate expenses from CBI, which in the opinion of management are reasonable but do not necessarily reflect what CyrusOne’s financial position, results of operations and cash flows would have been had CyrusOne been a stand-alone company during these respective periods. As a result, the Predecessor financial information is not necessarily indicative of CyrusOne’s future results of operations, financial position and cash flows.

In addition, the accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and should be read in conjunction with the financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013, which was filed with the Securities and Exchange Commission (“SEC”) on March 3, 2014. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been omitted from this report on Form 10-Q pursuant to the rules and regulations of the SEC.

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It should also be noted that the results for the interim periods shown in this report are not necessarily indicative of future financial results and have not been audited by our independent registered public accounting firm. In the opinion of management, the accompanying unaudited condensed consolidated and combined financial statements include all adjustments necessary to present fairly our financial position as of June 30, 2014, and our results of operations, for the three and six months ended June 30, 2014, and the three months ended June 30, 2013 and the periods ended June 30, 2013 (January 24, 2013 to June 30, 2013) and January 23, 2013 (January 1, 2013 to January 23, 2013).  These adjustments are of a normal recurring nature and consistent with the adjustments recorded to prepare the annual audited financial statements as of December 31, 2013.

4. Significant Accounting Policies

Use of Estimates—Preparation of the consolidated and combined financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated and combined financial statements and accompanying notes. These estimates and assumptions are based on management’s knowledge of current events and actions that we may undertake in the future. Estimates are used in determining the fair value of leased real estate, the useful lives of real estate and other long-lived assets, future cash flows associated with goodwill and other long-lived asset impairment testing, deferred tax assets and liabilities and loss contingencies. Estimates were also utilized in the determination of historical allocations of shared employees’ payroll, benefits and incentives and management fees. Actual results may differ from these estimates and assumptions.

Investments in Real Estate—Investments in real estate consist of land, buildings, improvements and integral equipment utilized in our data center operations. Real estate acquired from third parties has been recorded at its acquisition cost. Real estate acquired from CBI and its affiliates has been recorded at its historical cost basis. Additions and improvements which extend an asset’s useful life or increase its functionality are capitalized and depreciated over the asset’s remaining life. Maintenance and repairs are expensed as incurred.

When we are involved in the construction of structural improvements to leased property, we are deemed the accounting owner of the leased real estate. In these instances, we bear substantially all the construction period risk, including managing or funding construction. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations. At inception, the fair value of the real estate, which generally consists of a building shell and our associated obligation is recorded as construction in progress. As construction progresses the value of the asset and obligation increases by the fair value of the structural improvements. When construction is complete, the asset is placed in service and depreciation commences. Leased real estate is depreciated to the lesser of (i) its estimated fair value at the end of the term or (ii) the expected amount of the unamortized obligation at the end of the term. The associated obligation is presented as other financing arrangements in the accompanying condensed consolidated balance sheets.

When we are not deemed the accounting owner, we further evaluate leased real estate to determine whether the lease should be classified as a capital or operating lease. One of the following four characteristics must be present to classify a lease as a capital lease: (i) the lease transfers ownership of the property to the lessee by the end of the lease term, (ii) the lease contains a bargain purchase option, (iii) the lease term is equal to 75% or more of the estimated economic life of the leased property or (iv) the net present value of the lease payments are at least 90% of the fair value of the leased property.

Construction in progress includes direct and indirect expenditures for the construction and expansion of our data centers and is stated at its acquisition cost. Independent contractors perform substantially all of the construction and expansion efforts of our data centers. Construction in progress includes costs incurred under construction contracts including project management services, engineering and schematic design services, design development, construction services and other construction-related fees and services. Interest, property taxes and certain labor costs are also capitalized during the construction of an asset.

Depreciation is calculated using the straight-line method over the estimated useful life of the asset. Useful lives range from nine to forty-eight years for buildings, three to twenty-five years for building improvements, and three to five years for equipment. Leasehold improvements are amortized over the shorter of the asset’s useful life or the remaining lease term, including renewal options which are reasonably assured.

Management reviews the carrying value of long-lived assets, including intangible assets with finite lives, when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Examples of such indicators may include a significant adverse change in the extent to which or manner in which the property is being used, an accumulation of costs significantly in excess of the amount originally expected for acquisition or development, or a history of operating or cash flow losses. When such indicators exist, we review an estimate of the undiscounted future cash flows expected to result from the use of an asset (or group of assets) and its eventual disposition and compare such amount to its carrying amount. We consider factors such as future operating income, leasing demand, competition and other factors. If our undiscounted net cash

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NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

flows indicate that we are unable to recover the carrying value of the asset, an impairment loss is recognized. An impairment loss is measured as the amount by which the asset’s carrying value exceeds its estimated fair value.

Impairment exists when the Company's net book value of real estate assets is greater than the estimated fair value. No such impairments were recognized for any period presented.

Cash and Cash Equivalents—Cash and cash equivalents include all non-restricted cash held in financial institutions and other non-restricted highly liquid short-term investments with original maturities at acquisition of three months or less.

Goodwill—Goodwill represents the excess of the purchase price over the fair value of net assets acquired in connection with business acquisitions. We perform impairment testing of goodwill, at the reporting unit level, on an annual basis or more frequently if indicators of potential impairment exist.

The fair value of our reporting unit was determined using a combination of market-based valuation multiples for comparable businesses and discounted cash flow analysis based on internal financial forecasts incorporating market participant assumptions. There were no impairments recognized for any of the periods presented.

Long-Lived and Intangible Assets—Intangible assets represent purchased assets that lack physical substance, but can be separately distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged, either on its own or in combination with a related contract, asset, or liability. Intangible assets with finite lives consist of trademarks, customer relationships, and a favorable leasehold interest.

There were no impairments recognized for any of the periods presented.

Rent and Other Receivables—Receivables consist principally of trade receivables from customers and are generally unsecured and due within 30 to 120 days. Unbilled receivables arise from services rendered but not yet billed. Expected credit losses associated with trade receivables are recorded as an allowance for uncollectible accounts. The allowance for uncollectible accounts is estimated based upon historic patterns of credit losses for aged receivables as well as specific provisions for certain identifiable, potentially uncollectible balances. When internal collection efforts on accounts have been exhausted, the accounts are written-off and the associated allowance for uncollectible accounts is reduced.

Deferred Costs—Deferred costs include both deferred leasing costs and deferred financing costs. Deferred costs are presented with other assets in the accompanying condensed consolidated and combined balance sheets. Leasing commissions incurred at the commencement of a new lease are capitalized and amortized over the term of the customer lease. Amortization of deferred leasing costs is presented with depreciation and amortization in the accompanying condensed consolidated and combined statements of operations. If a lease terminates prior to the expected term of the lease, the remaining unamortized cost is written off to amortization expense.

Deferred financing costs include costs incurred in connection with issuance of debt and the Credit Agreement (as defined below). These financing costs are capitalized and amortized over the term of the debt or Credit Agreement and are included as a component of interest expense.

Other Financing Arrangements—Other financing arrangements represent leases of real estate where we are involved in the construction of structural improvements to develop buildings into data centers. When we bear substantially all the construction period risk, such as managing or funding construction, we are deemed to be the accounting owner of the leased property and, at the lease inception date, we are required to record at fair value the property and associated liability on our condensed consolidated and combined balance sheet. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations.

Revenue Recognition—Colocation rentals are generally billed monthly in advance, and some contracts have escalating payments over the term of the contract. If rents escalate without the lessee gaining access to or control over additional leased space or power, and the lessee takes possession of, or controls the physical use of the property (including all contractually committed power) at the beginning of the lease term, the rental payments by the lessee are recognized as revenue on a straight-line basis over the term of the lease. If rents escalate because the lessee gains access to and control over additional leased space or power, revenue is recognized in proportion to the additional space or power in the years that the lessee has control over the use of the additional space or power. The excess of revenue recognized over amounts contractually due is recognized in other assets in the accompanying condensed consolidated and combined balance sheets.

Some of our leases are structured on a full-service gross basis in which the customer pays a fixed amount for both colocation rental and power. Other leases provide that the customer will be billed for power based upon actual usage which is separately metered. In both cases, this revenue is presented as revenue in the accompanying condensed consolidated and combined statements of operations. Power is generally billed one month in arrears, and an estimate of this revenue is accrued in

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NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

the month that the associated costs are incurred. We generally are not entitled to reimbursements for real estate taxes, insurance or other operating expenses.

Revenue is recognized for services or products that are deemed separate units of accounting. When a customer makes an advance payment, which is not deemed a separate unit of accounting, deferred revenue is recorded. This revenue is recognized ratably over the expected term of the lease, unless the pattern of service suggests otherwise.

Certain customer leases require specified levels of service or performance. If we fail to meet these service levels, our customers may be eligible to receive credits on their contractual billings. These credits are recognized against revenue when an event occurs that gives rise to such credits.

Property Operating Expenses—Property operating expenses generally consist of electricity, salaries and benefits of data center operations personnel, real estate taxes, security, rent, insurance and other site operating and maintenance costs.

General and Administrative Expense—General and administrative expense consist of salaries and benefits of senior management and support functions, legal costs and consulting costs.

Sales and Marketing Expense—Sales and marketing expense is comprised of compensation and benefits associated with sales and marketing personnel as well as advertising and marketing costs.

Depreciation and Amortization Expense—Depreciation expense is recognized over the estimated useful lives of real estate applying the straight-line method. The useful life of leased real estate and leasehold improvements is the lesser of the economic useful life of the asset or the term of the lease, including optional renewal periods if renewal of the lease is reasonably assured. The residual value of leased real estate is estimated as the lesser of (i) the expected fair value of the asset at the end of the lease term or (ii) the expected amount of the unamortized liability at the end of the lease term. Estimated useful lives are periodically reviewed.

Amortization expense is recognized over the estimated useful lives of finite-lived intangibles. An accelerated method of amortization is utilized to amortize our customer relationship intangible, consistent with the benefit expected to be derived from this asset. We amortize trademarks, favorable leasehold interests, deferred leasing costs and deferred sales commissions over their estimated useful lives. The estimated useful life of trademarks and customer relationships is eight to 15 years. In addition, we have a favorable leasehold interest related to a land lease that is being amortized over the lease term of 56 years.

Transaction Costs—Transaction costs represent legal, accounting and professional fees incurred in connection with the formation transactions, our qualification as a real estate investment trust, or REIT and potential business combinations. Transaction costs are expensed as incurred.

Transaction-Related Compensation —During the period ended January 23, 2013, the Company received an allocated compensation charge from CBI of $20.0 million for the settlement of its long-term incentive plan associated with the completion of the IPO. The amount was determined by CBI and allocated to CyrusOne Inc. on January 23, 2013, and reflected as expense and contributed capital in the respective period.

Income Taxes—CyrusOne Inc. was included in CBI’s consolidated tax returns in various jurisdictions for the Predecessor period. In the accompanying financial statements, the Predecessor period reflects income taxes as if the Company was a separate stand-alone company. The income tax provision consists of an amount for taxes currently payable and an amount for tax consequences deferred to future periods. CyrusOne Inc. will elect to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the "Code"), by making our REIT election upon the filing of our 2013 federal income tax return. Provided we qualify for taxation as a REIT and continue to meet the various qualification tests mandated under the Code, we are generally not subject to corporate level federal income tax on the earnings distributed currently to our shareholders. If we fail to qualify as a REIT in any taxable year, our taxable income will be subject to federal income tax at regular corporate rates and any applicable alternative minimum tax.

While CyrusOne Inc. and the Operating Partnership do not pay federal income taxes, we are still subject to foreign, state and local income taxes in the locations in which we conduct business. Our taxable REIT subsidiaries (each a “TRS”) are also subject to federal and state income taxes to the extent they earn taxable income.

Deferred income taxes are recognized in certain entities. Deferred income taxes are provided for temporary differences in the bases between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred tax assets depends upon our ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards.

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NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction as well as various foreign, state and local jurisdictions.  The Company's previous tax filings are subject to normal reviews by regulatory agencies until the related statute of limitations expires.  With a few exceptions, the Company is no longer subject to U. S. federal, state or local examinations for years prior to 2010 and we have no liabilities for uncertain tax positions as of June 30, 2014.

Comprehensive Income (Loss)—Comprehensive income (loss) represents the change in net assets of a company from transactions and other events from non-owner sources. Comprehensive income (loss) comprises all components of net income and all components of other comprehensive income. As components of other comprehensive income (loss) were immaterial for all periods presented, comprehensive income (loss) is not presented.

Earnings Per Share—For all periods subsequent to January 23, 2013, we present earnings per share (“EPS”) data. Basic EPS includes only the weighted average number of common shares outstanding during the period. Diluted EPS includes the weighted average number of common shares and the dilutive effect of stock options, restricted stock and share unit awards and convertible subordinated notes outstanding during the period, when such instruments are dilutive.

All outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends are treated as participating in undistributed earnings with common shareholders. Awards of this nature are considered participating securities and the two-class method of computing basic and diluted EPS must be applied.

Stock-Based Compensation—In conjunction with the IPO, our Board of Directors adopted the 2012 Long-Term Incentive Plan (“LTIP”). The LTIP is administered by the Board of Directors, or the plan administrator. Awards issuable under the LTIP include common stock, restricted stock, stock options and other incentive awards. The awards under the LTIP include the following:

• Restricted Shares - On January 24, 2013, CyrusOne Inc. issued approximately 1 million restricted shares to its employees, officers and members of the Company's Board of Directors in conjunction with CyrusOne's IPO. These restricted shares generally vest over three years. The per share grant date price was $19.00. In addition, from time to time, new employees and Board of Directors have been issued restricted shares. These restricted shares are issued at a price equal to share price on the grant date.

• Performance and Market Based Awards - On April 17, 2013 and February 7, 2014, the Company issued performance and market based awards in the form of options and/or restricted stock to certain employees and officers of the Company. Fifty percent of the restricted shares and stock options will vest annually based upon achieving certain performance criteria. The other fifty percent of the restricted shares and stock options will vest at the end of three years if certain market conditions are met. The fair value of these awards were determined using the Black-Scholes or Monte-Carlo model which use assumptions such as volatility, risk-free interest rate, and expected term of the awards. See Note 10 for additional details relating to these awards.

• Compensation expense for these awards is recognized over the vesting periods.

Fair Value Measurements—Fair value measurements are utilized in accounting for business combinations and testing of goodwill and other long-lived assets for impairment and disclosures. Fair value of financial and non-financial assets and liabilities is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The three-tier hierarchy for inputs used in measuring fair value, which prioritizes the inputs used in the methodologies of measuring fair value for assets and liabilities, is as follows:

Level 1—Observable inputs for identical instruments such as quoted market prices;

Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs); and

Level 3—Unobservable inputs that reflect our determination of assumptions that market participants would use in pricing the asset or liability. These inputs are developed based on the best information available, including our own data.

Business Segments—Business segments are components of an enterprise for which separate financial information is available and regularly viewed by the chief operating decision maker to assess performance and allocate resources. Our chief operating decision maker, the Company's Chief Executive Officer, reviews our financial information on an aggregate basis. Furthermore, our data centers have similar economic characteristics and customers across all geographic locations, our service offerings have similar production processes, deliver services in a similar manner and use the same types of facilities and similar technologies. As a result, we have concluded that we have one reportable business segment.

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CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Recently Issued Accounting Standards—In February, 2013, the Financial Accounting Standards Board ("FASB") issued amendments to provide guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The amendments are effective for fiscal years and interim periods within those years, beginning after December 15, 2013. The Company adopted this guidance in the first quarter of 2014 and has properly reflected the impact in the guarantor financial statements.

In May 2014, the FASB issued guidance that outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most of the existing revenue recognition guidance. This guidance requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures which are effective for interim and annual reporting periods in fiscal years that begin after December 15, 2016.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

In June 2014, the FASB issued a guidance update for the presentation of stock compensation.  This guidance requires an entity to treat performance targets that can be met after the requisite service period of a share based award has ended, as a performance condition that affects vesting which is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2015.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

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NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

5. Investment in Real Estate

A schedule of our gross investment in real estate follows:

	June 30, 2014						December 31, 2013
(dollars in millions)	Land		Building and Improvements		Equipment		Land		Building and Improvements		Equipment
West Seventh St., Cincinnati, OH (7th Street)	$	0.9	$	107.6	$	12.1	$	0.9	$	107.6	$	11.0
Parkway Dr., Mason, OH (Mason)	—		20.2		0.6		—		20.2		0.6
Industrial Rd., Florence, KY (Florence)	2.2		41.4		2.7		2.2		41.4		2.4
Goldcoast Dr., Cincinnati, OH (Goldcoast)	0.6		6.7		0.1		0.6		6.7		0.1
Knightsbridge Dr., Hamilton, OH (Hamilton)	—		49.2		3.6		—		49.2		3.6
E. Monroe St., South Bend, IN (Monroe St.)	—		2.5		0.1		—		2.5		—
Springer St., Lombard, IL (Lombard)	0.7		4.6		3.9		0.7		4.6		0.2
Crescent Circle, South Bend, IN (Blackthorn)	—		3.3		0.2		—		3.3		0.2
Kingsview Dr., Lebanon, OH (Lebanon)	4.0		76.8		4.5		4.0		71.7		2.2
McAuley Place, Blue Ash, OH (Blue Ash)	—		0.6		0.1		—		0.6		—
Westway Park Blvd., Houston, TX (Houston West 1)	1.4		84.4		42.8		1.4		84.4		39.4
Westway Park Blvd., Houston, TX (Houston West 2)	2.0		22.5		43.5		2.0		22.4		15.8
Westway Park Blvd., Houston, TX (Houston West 3)	18.4		—		—		18.3		—		—
Southwest Fwy., Houston, TX (Galleria)	—		68.5		14.2		—		68.4		13.3
E. Ben White Blvd., Austin, TX (Austin 1)	—		22.5		1.2		—		22.5		1.2
S. State Highway 121 Business, Lewisville, TX (Lewisville)	—		77.2		21.7		—		77.0		20.3
Marsh Lane, Carrollton, TX (Marsh Ln)	—		0.1		0.6		—		0.1		0.5
Midway Rd., Carrollton, TX (Midway)	—		2.0		0.4		—		2.0		0.4
W. Frankford Rd., Carrollton, TX (Carrollton)	16.1		43.2		77.7		16.1		42.6		34.8
Bryan St., Dallas, TX (Bryan St)	—		0.1		0.1		—		0.1		0.1
North Freeway, Houston, TX (Greenspoint)	—		1.3		0.4		—		1.3		0.4
South Ellis Street, Chandler, AZ (Phoenix 1)	15.0		56.1		32.3		15.0		55.7		11.7
South Ellis Street, Chandler, AZ (Phoenix 2)	—		0.2		—		—		—		—
Westover Hills Blvd., San Antonio, TX (San Antonio 1)	4.6		32.1		32.7		4.6		32.1		29.5
Westover Hills Blvd., San Antonio, TX (San Antonio 2)	6.9		—		—		6.7		—		—
Metropolis Dr., Austin, TX (Austin 2)	2.0		23.2		2.5		2.0		23.1		1.7
Kestral Way (London)	—		35.9		0.7		—		34.8		0.7
Jurong East (Singapore)	—		9.5		0.1		—		9.4		0.1
Ridgetop Circle, Sterling, VA (Loudon County)	7.0		—		—		6.9		—		—
Metropolis Dr., Austin, TX (Austin 3)	7.9		—		—		7.9		—		—
Total	$	89.7	$	791.7	$	298.8	$	89.3	$	783.7	$	190.2

Construction in progress was $59.5 million and $57.3 million as of June 30, 2014 and December 31, 2013, respectively. We continue to have high amounts of construction in progress as we continue to build data center facilities.

During 2014, we are continuing to invest in development of real estate property. Our development has included the completion of additional square footage and power in our Phoenix 1, Phoenix 2, Carrollton, and Houston West 2 data centers.

In 2013, we made various land acquisitions. We purchased 33 acres of land in Houston (Houston West 3) for $18.2 million, 22 acres of land for $6.7 million in San Antonio (San Antonio 2), 22 acres of land for $7.9 million in Austin (Austin Met 3), and 14 acres of land for $6.9 million in Virginia (Northern VA).

Also in 2013, we executed our lease buyout options and purchased the Springer Street, Lombard, IL (Lombard) and Industrial Road, Florence, KY (Florence) data center facilities for a total purchase price of $5.5 million and $10.5 million,

22

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

respectively, and extinguished our Metropolis Drive, Austin, TX (Austin 2) data center facility related financing lease obligation for $12.2 million.

Upon completion of the buyout of the Lombard and Florence capital leases, the gross basis of the acquired assets were reset to the net carrying value of the leased assets and the depreciable life was extended to 25 years consistent with our policy for depreciating buildings. The amount of these adjustments for Lombard and Florence were $0.1 million and $7.9 million, respectively.

The extinguishment resulted in the settlement of the related financing lease obligation for Austin 2 of $8.9 million, acquisition of land of $2.0 million and a loss on extinguishment of debt of $1.3 million.

6. Debt and Other Financing Arrangements

The Company’s outstanding debt and other financing arrangements consists of the following:

(dollars in millions)	June 30, 2014		December 31, 2013
Revolving credit agreement	$	—	$	—
Capital lease obligations	15.0		16.7
6 3/8% Senior Notes due 2022	525.0		525.0
Other financing arrangements	57.1		56.3
Total	$	597.1	$	598.0

Revolving credit agreement—On November 20, 2012, we entered into a credit agreement (the “Credit Agreement”) which provides for a $225 million senior secured revolving credit facility, with a sublimit of $50 million for letters of credit and a $30 million sublimit for swingline loans. The Credit Agreement has a maturity date of November 20, 2017. Borrowings under the Credit Agreement will be used for working capital, capital expenditures and other general corporate purposes of CyrusOne LLC, the operating subsidiary of CyrusOne LP, the borrower, and the other subsidiaries of CyrusOne, including for acquisitions, dividends and other distributions permitted thereunder. Letters of credit will be used for general corporate purposes.

Borrowings under the Credit Agreement bear interest, at our election, at a rate per annum equal to (i) LIBOR plus the applicable margin or (ii) the base rate plus the applicable margin. The applicable margin is based on our Total Net Leverage Ratio, as defined in the Credit Agreement, and ranges between 3.25% and 3.75% for LIBOR rate advances and 2.25% and 2.75% for base rate advances. As of June 30, 2014, the applicable margin was 3.25% for LIBOR rate advances and 2.25% for base rate advances. Base rate is the higher of (i) the bank prime rate, (ii) the one-month LIBOR rate plus 1.00% and (iii) the federal funds rate plus 0.5%.

Borrowings under the Credit Agreement are guaranteed by CyrusOne Inc., CyrusOne GP, CyrusOne Finance Corp., CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. The obligations under the Credit Agreement are secured by, subject to certain exceptions, the capital stock of certain of our subsidiaries, certain intercompany debt and the tangible and other intangible assets of us and certain of our subsidiaries.

The Credit Agreement contains customary affirmative and negative covenants (which are in some cases subject to certain exceptions), including, but not limited to, restrictions on the ability to incur additional indebtedness, create liens, make certain investments, make certain dividends and related distributions, prepay certain debt, engage in affiliate transactions, enter into, or undertake, certain liquidations, mergers, consolidations or acquisitions, amend the organizational documents and dispose of assets or subsidiaries. In addition, the Credit Agreement requires us to maintain a certain secured net leverage ratio, ratio of earnings before interest, taxes, depreciation and amortization (“EBITDA”) to fixed charges and ratio of total indebtedness to gross asset value, in each case on a consolidated basis. Notwithstanding the limitations set forth above, we will be permitted, subject to the terms and conditions of the Credit Agreement, to distribute to our shareholders cash dividends in an amount not to exceed 95% of our adjusted funds from operations ("AFFO") (as defined in the Credit Agreement) for any period.

The Credit Agreement contains customary events of default (which are in some cases subject to certain exceptions, thresholds, notice requirements and cure periods), including, but not limited to, nonpayment of principal or interest, failure to perform or observe covenants, breaches of representations and warranties, cross-defaults with certain other indebtedness, certain bankruptcy-related events or proceedings, final monetary judgments or orders, ERISA defaults, certain change of control events and loss of REIT status following a REIT election by us. Notwithstanding the foregoing, our revolving credit

23

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

facility restricts CyrusOne LP from making distributions to its stockholders and limited partners, or redeeming or otherwise repurchasing shares of its capital stock or partnership units, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable CyrusOne Inc. to maintain its qualification as a REIT and to minimize the payment of income tax.

As of June 30, 2014, and December 31, 2013, there were no borrowings on the Credit Agreement.

We pay commitment fees for the unused amount of borrowing capacity on the Credit Agreement and letter of credit fees on any outstanding letters of credit. The commitment fees are equal to 0.50% of the actual daily amount by which the aggregate revolving commitments exceed the sum of outstanding revolving loans and letter of credit obligations. Commitment fees for the revolving credit facility for the three months ended June 30, 2014 and the period ended June 30, 2013 were $0.3 million. For the six months ended June 30, 2014 and the period ended June 30, 2013, commitment fees were $0.6 million. Commitment fees for the period ended January 23, 2013 were less than $0.1 million.

Capital Lease Obligations—We use leasing as a source of financing for certain of our data center facilities and related equipment. We currently operate three data center facilities recognized as capital leases. We have options to extend the initial lease term on all of these leases. Interest expense on capital lease obligations was $1.5 million and $3.0 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, interest expense on capital lease obligations was $1.5 million, $3.0 million and $0.3 million, respectively.

6 ³/8% Senior Notes due 2022—On November 20, 2012, CyrusOne LP and CyrusOne Finance Corp. (the “Issuers”) issued $525 million of 6 ³/8% Senior Notes due 2022 (“6 ³/8% Senior Notes”). The 6 ³/8% Senior Notes are senior unsecured obligations of the Issuers, which rank equally in right of payment with all existing and future unsecured senior debt of the Issuers. The 6 ³/8% Senior Notes are effectively subordinated to all existing and future secured indebtedness of the Issuers to the extent of the value of the assets securing such indebtedness. The 6 ³/8% Senior Notes are guaranteed on a joint and several basis, fully and unconditionally, by CyrusOne Inc., CyrusOne GP, and each of CyrusOne LP’s existing and future domestic 100% owned subsidiaries, subject to certain exceptions. Each such guarantee is a senior unsecured obligation of the applicable guarantor, ranking equally with all existing and future unsecured senior debt of such guarantor and effectively subordinated to all existing and future secured indebtedness of such guarantor to the extent of the value of the assets securing that indebtedness. The 6 ³/8% Senior Notes are structurally subordinated to all liabilities (including trade payables) of each subsidiary of the Issuers that does not guarantee the Senior Notes. The 6 ³/8% Senior Notes bear interest at a rate of 6 ³/8% per annum, payable semi-annually on May 15 and November 15 of each year, beginning on May 15, 2013. Interest expense on the Senior Notes was $8.3 million and $16.7 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ending June 30, 2013 and January 23, 2013, interest expense on the Senior Notes was $8.3 million, $14.6 million and $2.1 million, respectively.

The indenture governing the 6 ³/8% Senior Notes contains affirmative and negative covenants customarily found in indebtedness of this type, including a number of covenants that, among other things, restrict, subject to certain exceptions, the Company’s ability to: incur secured or unsecured indebtedness; pay dividends or distributions on its equity interests, or redeem or repurchase equity interests of the Company; make certain investments or other restricted payments; enter into transactions with affiliates; enter into agreements limiting the ability of the operating partnership’s subsidiaries to pay dividends or make certain transfers and other payments to the operating partnership or to other subsidiaries; sell assets; and merge, consolidate or transfer all or substantially all of the operating partnership’s assets. Notwithstanding the foregoing, our indenture restricts CyrusOne LP from making distributions to its stockholders and limited partners, or redeeming or otherwise repurchasing shares of its capital stock or partnership units, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable CyrusOne Inc. to maintain its qualification as a REIT and to minimize the payment of income tax. The Company and its subsidiaries are also required to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis, provided that for the purposes of such calculation their revolving credit facility shall be treated as unsecured indebtedness, in each case subject to certain qualifications set forth in the indenture.

The 6 ³/8% Senior Notes will mature on November 15, 2022. However, prior to November 15, 2017, the Issuers may, at their option, redeem some or all of the 6 ³/8% Senior Notes at a redemption price equal to 100% of the principal amount of the 6 ³/8% Senior Notes, together with accrued and unpaid interest, if any, plus a “make-whole” premium. On or after November 15, 2017, the Issuers may, at our option, redeem some or all of the 6 ³/8% Senior Notes at any time at declining redemption prices equal to (i) 103.188% beginning on November 15, 2017, (ii) 102.125% beginning on November 15, 2018, (iii) 101.063% beginning on November 15, 2019 and (iv) 100.000% beginning on November 15, 2020 and thereafter, plus, in each case, accrued and unpaid interest, if any, to the applicable redemption date. In addition, before November 15, 2015, and subject to certain conditions, the Issuers may, at their option, redeem up to 35% of the aggregate principal amount of the 6 ³/8% Senior Notes with the net proceeds of certain equity offerings at 106.375% of the principal amount thereof, plus accrued and

24

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

unpaid interest, if any, to the date of redemption; provided that (i) at least 65% of the aggregate principal amount of the 6 ³/8% Senior Notes remains outstanding and (ii) the redemption occurs within 90 days of the closing of any such equity offering.

Other Financing Arrangements—Other financing arrangements represents leases of real estate in which we are involved in the construction of structural improvements to develop buildings into data centers. When we bear substantially all the construction period risk, such as managing or funding construction, we are deemed to be the accounting owner of the leased property and, at the lease inception date, we are required to record at fair value the property and associated liability on our balance sheet. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations.

Deferred Financing Costs—Deferred financing costs are costs incurred in connection with obtaining long-term financing. Deferred financing costs were incurred in connection with the issuance of the Credit Agreement and 6 ³/8% Senior Notes due 2022. As of June 30, 2014, deferred financing costs totaled $12.4 million. Deferred financing costs are amortized using the effective interest method over the term of the related indebtedness. Amortization of deferred financing costs, included in interest expense in the condensed consolidated and combined statements of operations, totaled $0.9 million and $1.8 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, these costs totaled $1.7 million, $2.3 million and $0.1 million, respectively.

Debt Covenants—The indenture governing the 6 ³/8% Senior Notes contains affirmative and negative covenants customarily found in indebtedness of this type, including a number of covenants that, among other things, restrict, subject to certain exceptions, the Company’s ability to: incur secured or unsecured indebtedness; pay dividends or distributions on its equity interests, or redeem or repurchase equity interests of the Company; make certain investments or other restricted payments; enter into transactions with affiliates; enter into agreements limiting the ability of the operating partnership’s subsidiaries to pay dividends or make certain transfers and other payments to the operating partnership or to other subsidiaries; sell assets; and merge, consolidate or transfer all or substantially all of the operating partnership’s assets. Notwithstanding the foregoing, the covenants contained in the indenture do not restrict the Company’s ability to pay dividends or distributions to shareholders to the extent (i) no default or event of default exists or is continuing under the indenture and (ii) the Company believes in good faith that we qualify as a REIT under the Code and the payment of such dividend or distribution is necessary either to maintain its status as a REIT or to enable it to avoid payment of any tax that could be avoided by reason of such dividend or distribution. The Company and its subsidiaries are also required to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis, provided that for the purposes of such calculation their Credit Agreement facility shall be treated as unsecured indebtedness.

The Credit Agreement requires us to maintain a certain secured net leverage ratio, ratio of EBITDA to fixed charges and ratio of total indebtedness to gross asset value, in each case on a consolidated basis. Notwithstanding these limitations, we will be permitted, subject to the terms and conditions of the Credit Agreement, to distribute to our shareholders cash dividends in an amount not to exceed 95% of our AFFO (as defined in the Credit Agreement) for any period. Similarly, our indenture permits dividends and distributions necessary for us to maintain our status as a REIT.

The Company’s most restrictive covenants are generally included in its Credit Agreement. In order to continue to have access to the amounts available to it under the Credit Agreement, the Company must remain in compliance with all covenants.

As of June 30, 2014, the Company was in compliance with all covenants.

7. Fair Value of Financial Instruments

The fair value of cash and cash equivalents, restricted cash, rent and other receivables, accounts payable and accrued expenses approximate their carrying value because of the short-term nature of these instruments.

The carrying value and fair value of other financial instruments are as follows:

	June 30, 2014				December 31, 2013
(dollars in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
6 3/8% Senior Notes due 2022	$	525.0	$	567.0	$	525.0	$	539.4
Other financing arrangements	57.1		68.5		56.3		63.8

The fair value of our 6 ³/8% Senior Notes on June 30, 2014, and December 31, 2013, which are considered Level 1 of the fair value hierarchy, are based on the average trading price for these notes on or about the respective dates. The fair value of other financing arrangements at June 30, 2014 and December 31, 2013, was calculated using a discounted cash flow model that

25

incorporates current borrowing rates for obligations of similar duration. These fair value measurements are considered Level 2 of the fair value hierarchy.

26

8. Noncontrolling Interest

As part of the IPO, CyrusOne Inc. together with CyrusOne GP, purchased 21.9 million (or 33.9%) of the outstanding partnership units of CyrusOne LP and CBI retained a 66.1% ownership or 42.6 million Operating Partnership units in CyrusOne LP. As of January 24, 2014, CBI had the option to exchange the partnership units of CyrusOne into cash, or shares of common stock of CyrusOne Inc. as determined by us, on a one-for-one basis based upon the fair value of a share of our common stock. We evaluated whether we control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of these Operating Partnership units. Based on the results of this analysis, we concluded that these convertible Operating Partnership units met the criteria to be classified within equity. In addition, for each share of common stock issued by us, the Operating Partnership issues an equivalent Operating Partnership unit to the Company.

As stock is issued by CyrusOne, CBI's ownership percentage will change. CyrusOne has issued shares in conjunction with the LTIP discussed in Note 10. Furthermore, on June 25, 2014, CyrusOne Inc. completed a public offering of 15,985,000 shares of its common stock, including 2,085,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares, at a price to the public of $23.25 per share or $371.7 million. CyrusOne Inc. used the proceeds of $355.9 million, net of underwriting costs of $15.8 million, to acquire 15,985,000 common units of limited partnership interests in the Operating Partnership from a subsidiary of CBI. As a result, the Company's noncontrolling interest decreased by $166.9 million and CBI's ownership decreased to 40.8% as of June 30, 2014. In addition, the Company's additional paid in capital decreased by $189 million which represents the difference between the proceeds and the noncontrolling interest redeemed by CBI.

The following table shows the ownership interest as of June 30, 2014 and 2013 and the portion of net income (loss) and distributions for the six months ended June 30, 2014 and period ended June 30, 2013:

(dollars in millions, except per unit amount)	June 30, 2014				June 30, 2013
	The Company		CBI		The Company		CBI
Operating partnership units	38.7		26.6		22.1		42.6
Ownership %	59.2	%	40.8	%	34.2	%	65.8	%
Portion of net loss	(0.9	)	(2.0	)	(3.2	)	(6.4	)
Distributions	(12.9	)	(14.5	)	(6.5	)	(14.1	)

The redemption value of the remaining noncontrolling interests at June 30, 2014, was approximately $662.4 million based on the closing price of our stock of $24.90 on June 30, 2014.

9. Shareholders’ Equity

On May 7, 2014, we announced a regular cash dividend of $0.21 per common share payable to shareholders of record as of June 27, 2014. In addition, holders of Operating Partnership units also received a distribution of $0.21 per unit. The dividend and distribution were paid on July 15, 2014.

10. Equity Incentive Plan

In conjunction with the IPO, our Board of Directors adopted the LTIP. The LTIP is administered by the Board of Directors, or the plan administrator. Awards issuable under the LTIP include common stock, restricted stock, stock options and other incentive awards. We have reserved a total of 4 million shares of our common stock for issuance pursuant to the LTIP, which may be adjusted for changes in our capitalization and certain corporate transactions. To the extent that an award, if forfeitable, expires, terminates or lapses, or an award is otherwise settled in cash without the delivery of shares of common stock to the participant, then any unpaid shares subject to the award will be available for future grant or issuance under the LTIP. The payment of dividend equivalents in cash in conjunction with any outstanding awards will not be counted against the shares available for issuance under the LTIP. The related stock compensation expense incurred by CyrusOne Inc. will be allocated to the Operating Partnership.

Restricted Shares

The Company issued approximately 1 million restricted shares to its employees, officers and board of directors in conjunction with the IPO. These restricted shares generally vest over three years. The per share grant date price was $19.00. These restricted shares also earn non-forfeitable dividends throughout the vesting period. In addition, from time to time, new

27

employees and Board of Directors have been issued restricted shares. These restricted shares are issued at a price equal to the share price on the grant date.

The Company recognized stock-based compensation expense of approximately $1.7 million and $1.5 million for the three months ended June 30, 2014 and 2013, respectively, and approximately $3.1 million and $2.7 million for the six months ended June 30, 2014 and the period ended June 30, 2013, respectively. In addition, we had unrecognized compensation expense of approximately $9.1 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 1.6 years.

Performance Based Awards

On April 17, 2013, the Company approved grants of performance-based options and performance-based restricted stock under the LTIP. These awards generally vest over three years upon the achievement of certain performance-based objectives. These awards are expensed based on the grant date fair value if it is probable that the performance conditions will be achieved.

The Company recognized stock-based compensation expense related to the April 17 grant of approximately $0.3 million and $0.5 million for the three and six months ended June 30, 2014, respectively, with an expense of $0.3 million for each of the three months and the period ended June 30, 2013. In addition, we had unrecognized compensation expense of approximately $1.2 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 1.7 years.

The performance criteria are based on achieving both an EBITDA and a relative stockholder return target by the end of the three-year period. We are recording a compensation charge based on achieving 67% of both targets.

On February 7, 2014, the Company approved grants of performance-based restricted stock under the LTIP. These awards generally vest over three years upon the achievement of certain performance-based objectives. These awards are expensed based on the grant date fair value if it is probable that the performance conditions will be achieved.

The Company recognized stock-based compensation expense related to the February 7 grant of approximately $0.9 million and $1.4 million for the three and six months ended June 30, 2014, respectively, with an expense of $0.3 million for the period ended June 30, 2013. In addition, we had unrecognized compensation expense of approximately $5.9 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 2.6 years.

The performance criteria is based on achieving both an EBITDA and a relative return target by the end of the three year period. We are recording a compensation charge based on achieving 101.4% of both targets.

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CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

11. Loss per Share

Basic loss per share is calculated using the weighted average number of shares of common stock outstanding during the period. In addition, net loss applicable to participating securities and the related participating securities are excluded from the computation of basic loss per share.

Diluted loss per share is calculated using the weighted average number of shares of common stock outstanding during the period, including restricted stock outstanding. If there is net income during the period, the dilutive impact of common stock equivalents outstanding would also be reflected.

The following table reflects the computation of basic and diluted net loss per share for the three and six months ended June 30, 2014 and for the three months and the period ended June 30, 2013:

	Three Months Ended						Three Months Ended						Six Months Ended						Period Ended
	June 30, 2014						June 30, 2013						June 30, 2014						June 30, 2013
(dollars in millions, except per share amount)	Basic			Diluted			Basic			Diluted			Basic			Diluted			Basic			Diluted
Numerator:
Net loss attributed to common shareholders	$	(1.1	)	$	(1.1	)	$	(2.3	)	$	(2.3	)	$	(0.9	)	$	(0.9	)	$	(3.2	)	$	(3.2	)
Less: Restricted stock dividends	(0.2		)	(0.2		)	(0.2		)	(0.2		)	(0.4		)	(0.4		)	(0.3		)	(0.3		)
Net loss available to shareholders	$	(1.3	)	$	(1.3	)	$	(2.5	)	$	(2.5	)	$	(1.3	)	$	(1.3	)	$	(3.5	)	$	(3.5	)
Denominator:
Weighted average common outstanding-basic	21.7			21.7			20.9			20.9			21.3			21.3			20.9			20.9
Performance-based restricted stock(1)(2)				—						—						—						—
Convertible securities(1)(2)				—						—						—						—
Weighted average shares outstanding-diluted				21.7						20.9						21.3						20.9
EPS:
Net loss per share-basic	$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)
Effect of dilutive shares:
Net loss per share-diluted				$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)

⁽¹⁾ We have excluded 0.8 million of restricted stock, and 42.1 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2014, as these securities were deemed anti-dilutive.

⁽²⁾ We have excluded 0.2 million of restricted stock, and 42.6 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2013, as these securities were deemed anti-dilutive.

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CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

12. Related Party Transactions

The condensed consolidated and combined financial statements reflect the following transactions with CBI and its affiliated entities, including Cincinnati Bell Telephone (“CBT”) and Cincinnati Bell Technology Solutions (“CBTS”):

Revenues—The Company records revenues from CBI under contractual service arrangements. These services include lease of data center space, power and cooling in certain of our data center facilities and network interface services and office space.

Operating Expenses—The Company records expenses from CBI incurred in relation to network support, services calls, monitoring and management, storage and backup, IT systems support, and connectivity services.

Revenues and expenses for the periods presented were as follows:

	Successor		Successor		Successor		Successor		Predecessor
(dollars in millions)	Three Months Ended June 30, 2014		Three Months Ended June 30, 2013		Six Months Ended June 30, 2014		January 24, 2013 to June 30, 2013		January 1, 2013 to January 23, 2013
Revenue:
Data center colocation agreement provided to CBT and CBTS	$	1.5	$	1.0	$	3.0	$	2.0	$	0.3
229 West 7th Street lease provided to CBT	0.5		0.1		1.0		0.1		—
Goldcoast Drive/Parkway (Mason) lease	0.1		0.1		0.2		0.1		—
Transition services provided to CBTS (network interfaces)	0.1		0.5		0.2		0.7		0.1
Data center leases provided to CBTS	3.6		0.7		7.2		3.4		—
Total revenue	$	5.8	$	2.4	$	11.6	$	6.3	$	0.4
Operating costs and expenses:
Transition services agreement by CBTS	$	0.3	$	—	$	0.6	$	—	$	—
Connectivity charges provided by CBT	0.2		0.5		0.5		0.7		0.1
209 West 7th Street rent provided by CBT	0.1		—		0.1		—		—
Allocated employee benefit plans by CBI	—		—		—		—		0.2
Allocated centralized insurance costs by CBI	—		—		—		—		0.1
Total operating costs and expenses	$	0.6	$	0.5	$	1.2	$	0.7	$	0.4

As of June 30, 2014 and December 31, 2013, the amounts receivable from and payable to CBI were as follows:

	As of		As of
(dollars in millions)	June 30, 2014		December 31, 2013
Accounts receivable from CBI	$	0.5	$	0.6
Accounts payable	$	1.8	$	1.7
Distributions payable	5.6		6.8
Total amounts payable to CBI	$	7.4	$	8.5

The distributions payable as of June 30, 2014, reflect the balance due to CBI related to the dividend declared on May 7, 2014, of $0.21 per share, related to CBI's ownership of Operating Partnership units.

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CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

13. Income Taxes

CyrusOne Inc. will elect to be taxed as a REIT under the Code by making our REIT election upon the filing of our 2013 federal income tax return. To qualify as a REIT, we are required to distribute at least 90% of our taxable income to our stockholders and meet various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided we qualify for taxation as a REIT, we are generally not subject to corporate level federal income tax on the earnings distributed currently to our shareholders. It is our policy and intent, subject to change, to distribute 100% of our taxable income and therefore no provision is required in the accompanying financial statements for federal income taxes with regards to activities of CyrusOne Inc. and its subsidiary pass-through entities.

We have elected to designate two subsidiaries as taxable REIT subsidiaries (each a “TRS”). A TRS may perform services for our tenants that would otherwise be considered impermissible for REITs. The income generated from these services is taxed at federal and state corporate rates. While CyrusOne Inc. and the Operating Partnership do not pay federal income taxes, we are still subject to foreign, state, and local income taxes in the locations in which we conduct business.Income tax expense for the three and six months ended June 30, 2014, was $0.3 million and $0.7 million, respectively, and $0.3 million and $0.9 million for the comparable periods in 2013.

In conjunction with the Company’s tax sharing arrangement with CBI, CBI may be required to file Texas margin tax returns on a consolidated, combined or unitary basis with the Company for any given year.   If such return is prepared by CBI on a combined or consolidated basis to include the Company, the related Texas margin tax of the Company will be paid by CBI. The Company will then reimburse CBI for its portion of the related Texas margin tax. The Texas margin tax payable was $1.8 million as of June 30, 2014 and $1.4 million as of December 31, 2013. Effective June 26, 2014, CBI’s ownership percentage in the Operating Partnership was reduced to below 50 percent. As a result, the Company will file its own Texas margin tax return and therefore, reimbursements to CBI by the Company will no longer be necessary.

For certain entities we calculate deferred tax assets and liabilities for temporary differences in the basis between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred tax assets depends upon our ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards. Deferred tax assets (net of valuation allowance) and liabilities were accrued, as necessary, for the periods ended June 30, 2014 and December 31, 2013. As of June 30, 2014, we had a total net deferred tax asset balance of $3.7 million that was offset by a valuation allowance of $3.7 million. As of December 31, 2013, we had a total net deferred tax asset balance of $3.6 million that was offset by a valuation allowance of $3.6 million.

31

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

14. Guarantors

CyrusOne Inc.

CyrusOne LP and CyrusOne Finance Corp., as “LP Co-issuer” and “Finance Co-issuer,” respectively (together, the “Issuers”), had $525 million aggregate principal amount of Senior Notes outstanding at June 30, 2014. The Senior Notes are fully and unconditionally and jointly and severally guaranteed on a senior basis by CyrusOne Inc. (“Parent Guarantor”), CyrusOne GP (“General Partner”), and CyrusOne LP’s 100% owned subsidiaries, CyrusOne LLC, CyrusOne TRS Inc. and CyrusOne Foreign Holdings LLC (such subsidiaries, together the “Guarantors”). None of the subsidiaries organized outside of the United States (collectively, the “Non-Guarantors”) guarantee the Senior Notes. Subject to the provisions of the indenture governing the Senior Notes, in certain circumstances, a Guarantor may be released from its guarantee obligation, including:

• upon the sale or other disposition (including by way of consolidation or merger) of such Guarantor or of all of the capital stock of such Guarantor such that such Guarantor is no longer a restricted subsidiary under the indenture,

• upon the sale or disposition of all or substantially all of the assets of the Guarantor,

• upon the LP Co-issuer designating such Guarantor as an unrestricted subsidiary under the terms of the indenture,

• if such Guarantor is no longer a guarantor or other obligor of any other indebtedness of the LP Co-issuer or the Parent Guarantor, and

• upon the defeasance or discharge of the Senior Notes in accordance with the terms of the indenture.

The following provides information regarding the entity structure of each guarantor of the Senior Notes:

CyrusOne Inc. – CyrusOne Inc. was formed on July 31, 2012. As of January 23, 2013, CyrusOne Inc. was a wholly-owned subsidiary of CBI. Effective January 24, 2013, CyrusOne Inc. completed its IPO of common stock for net proceeds of $337.1 million, and together with the General Partner, purchased a 33.9% ownership interest in CyrusOne LP. As of June 25, 2014, CyrusOne Inc. increased its ownership in CyrusOne LP to 59.2%. CyrusOne Inc. also represents a guarantor or Parent Guarantor and became a separate registrant with the SEC upon completion of its IPO.

CyrusOne GP – CyrusOne GP was formed on July 31, 2012, and was a 100% owned subsidiary of CyrusOne Inc. as of January 23, 2013. Effective upon completion of CyrusOne Inc.’s IPO, this entity became the general partner and 1% owner of CyrusOne LP and has no other assets or operations. Prior to the IPO, this entity did not incur any obligations or record any transactions.

Issuers – The Issuers include CyrusOne LP and CyrusOne Finance Corp. CyrusOne Finance Corp., a 100% owned subsidiary of CyrusOne LP, was formed for the sole purpose of acting as co-issuer of the Senior Notes and has no other assets or operations. CyrusOne LP, in addition to being the co-issuer of the Senior Notes, is also the 100% owner, either directly or indirectly, of the Guarantors and Non-Guarantors.

Guarantors – The guarantors include CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. CyrusOne LLC accounts for all of the domestic operations of CyrusOne LP, including the businesses that composed the Predecessor operations. CyrusOne LLC, together with CyrusOne Foreign Holdings LLC, directly or indirectly owns 100% of the Non-Guarantors. CyrusOne TRS Inc. had not incurred any obligations or recorded any material transactions for the three and six months ended June 30, 2014, the three months ended June 30, 2013 or the period ended June 30, 2013.

As of June 30, 2014, the Non-Guarantors consist of 100% owned subsidiaries which conduct operations in the United Kingdom and Singapore.

The following schedules present the balance sheets as of June 30, 2014 and December 31, 2013 for the Parent Guarantor, General Partner, LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantor. The following schedules also present the statements of operations and statements of cash flows for the three and six months ended June 30, 2014, the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, for the Parent Guarantor, General Partner, LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantors.

32

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Balance Sheets

(dollars in millions)	As of June 30, 2014
	Parent Guarantor		General Partner		LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	—	$	—	$	89.7		$	—		$	—		$	89.7
Buildings and improvements	—		—		—		—		746.3			45.4			—			791.7
Equipment	—		—		—		—		297.9			0.9			—			298.8
Construction in progress	—		—		—		—		59.5			—			—			59.5
Subtotal	—		—		—		—		1,193.4			46.3			—			1,239.7
Accumulated depreciation	—		—		—		—		(274.2		)	(6.4		)	—			(280.6		)
Net investment in real estate	—		—		—		—		919.2			39.9			—			959.1
Cash and cash equivalents	—		—		—		—		44.8			4.5			—			49.3
Investment in subsidiaries	751.0		7.5		773.7		—		5.1			—			(1,537.3		)	—
Rent and other receivables	—		—		—		—		59.2			2.3			—			61.5
Intercompany receivable	—		—		508.1		—		—			—			(508.1		)	—
Goodwill	—		—		—		—		276.2			—			—			276.2
Intangible assets, net	—		—		—		—		77.4			—			—			77.4
Due from affiliates	—		—		—		—		0.5			—			—			0.5
Other assets	—		—		12.4		—		66.2			3.5			—			82.1
Total assets	$	751.0	$	7.5	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(2,045.4	)	$	1,506.1
Accounts payable and accrued expenses	$	—	$	—	$	12.6	$	—	$	70.4		$	0.9		$	—		$	83.9
Deferred revenue	—		—		—		—		66.3			0.4			—			66.7
Intercompany payable	—		—		—		—		508.1			—			(508.1		)	—
Due to affiliates	—		—		5.6		—		1.8			—			—			7.4
Capital lease obligations	—		—		—		—		7.0			8.0			—			15.0
Long-term debt	—		—		525.0		—		—			—			—			525.0
Other financing arrangements	—		—		—		—		21.3			35.8			—			57.1
Total liabilities	—		—		543.2		—		674.9			45.1			(508.1		)	755.1
Total equity	751.0		7.5		751.0		—		773.7			5.1			(1,537.3		)	751.0
Total liabilities and equity	$	751.0	$	7.5	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(2,045.4	)	$	1,506.1

33

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	As of December 31, 2013
	Parent Guarantor		General Partner		LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	—	$	—	$	89.3		$	—		$	—		$	89.3
Buildings and improvements	—		—		—		—		739.6			44.1			—			783.7
Equipment	—		—		—		—		189.4			0.8			—			190.2
Construction in progress	—		—		—		—		57.3			—			—			57.3
Subtotal	—		—		—		—		1,075.6			44.9			—			1,120.5
Accumulated depreciation	—		—		—		—		(232.0		)	(4.7		)	—			(236.7		)
Net investment in real estate	—		—		—		—		843.6			40.2			—			883.8
Cash and cash equivalents	—		—		—		—		146.8			2.0			—			148.8
Investment in subsidiaries	777.6		7.8		795.0		—		2.1			—			(1,582.5		)	—
Rent and other receivables	—		—		—		—		40.3			0.9			—			41.2
Intercompany receivable	—		—		508.1		—		0.2			—			(508.3		)	—
Goodwill	—		—		—		—		276.2			—			—			276.2
Intangible assets, net	—		—		—		—		85.9			—			—			85.9
Due from affiliates	—		—		—		—		0.6			—			—			0.6
Other assets	—		—		14.1		—		53.0			3.2			—			70.3
Total assets	$	777.6	$	7.8	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(2,090.8	)	$	1,506.8
Accounts payable and accrued expenses	$	—	$	—	$	7.8	$	—	$	58.6		$	0.4		$	—		$	66.8
Deferred revenue	—		—		—		—		55.1			0.8			—			55.9
Intercompany payable	—		—		—		—		508.1			0.2			(508.3		)	—
Due to affiliates	—		—		6.8		—		1.7			—			—			8.5
Capital lease obligations	—		—		—		—		8.6			8.1			—			16.7
Long-term debt	—		—		525.0		—		—			—			—			525.0
Other financing arrangements	—		—		—		—		21.6			34.7			—			56.3
Total liabilities	—		—		539.6		—		653.7			44.2			(508.3		)	729.2
Total parent’s net investment	777.6		7.8		777.6		—		795.0			2.1			(1,582.5		)	777.6
Total liabilities and parent’s net investment	$	777.6	$	7.8	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(2,090.8	)	$	1,506.8

34

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Statements of Operations

(dollars in millions)	Three Months Ended June 30, 2014
		Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	—		$	—	$	80.4		$	1.3		$	—		$	81.7
Costs and expenses:
Property operating expenses		—			—		—			—		31.2			0.6			—			31.8
Sales and marketing		—			—		—			—		3.4			0.1			—			3.5
General and administrative		—			—		—			—		8.4			—			—			8.4
Depreciation and amortization		—			—		—			—		29.1			0.7			—			29.8
Transaction costs		—			—		—			—		0.8			—			—			0.8
Total costs and expenses		—			—		—			—		72.9			1.4			—			74.3
Operating income (loss)		—			—		—			—		7.5			(0.1		)	—			7.4
Interest expense		—			—		9.7			—		0.1			0.9			—			10.7
Income (loss) before income taxes		—			—		(9.7		)	—		7.4			(1.0		)	—			(3.3		)
Income tax expense		—			—		—			—		(0.3		)	—			—			(0.3		)
Equity earnings (loss) related to investment in subsidiaries		(3.6		)	—		6.1			—		(1.0		)	—			(1.5		)	—
Net income (loss)		(3.6		)	—		(3.6		)	—		6.1			(1.0		)	(1.5		)	(3.6		)
Noncontrolling interest in net loss		(2.5		)	—		—			—		—			—			—			(2.5		)
Net income (loss) attributed to common shareholders		$	(1.1	)	$	—	$	(3.6	)	$	—	$	6.1		$	(1.0	)	$	(1.5	)	$	(1.1	)

(dollars in millions)	Three Months Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—		$	—		$	—		$	—	$	62.5		$	1.1		$	—	$	63.6
Costs and expenses:
Property operating expenses	—			—			—			—		23.8			0.8			—		24.6
Sales and marketing	—			—			—			—		2.8			0.1			—		2.9
General and administrative	—			—			—			—		7.1			—			—		7.1
Depreciation and amortization	—			—			—			—		22.3			0.7			—		23.0
Transaction costs	—			—			—			—		0.4			—			—		0.4
Total costs and expenses	—			—			—			—		56.4			1.6			—		58.0
Operating income (loss)	—			—			—			—		6.1			(0.5		)	—		5.6
Interest expense	—			—			10.1			—		0.2			0.5			—		10.8
Loss on extinguishment of debt	—			—			—			—		1.3			—			—		1.3
Income (loss) before income taxes	—			—			(10.1		)	—		4.6			(1.0		)	—		(6.5		)
Income tax expense	—			—			—			—		(0.3		)	—			—		(0.3		)
Equity earnings (loss) related to investment in subsidiaries	(6.8		)	(0.1		)	3.3			—		(1.0		)	—			4.6		—
Net income (loss)	(6.8		)	(0.1		)	(6.8		)	—		3.3			(1.0		)	4.6		(6.8		)
Noncontrolling interest in net loss	(4.5		)	—			—			—		—			—			—		(4.5		)
Net income (loss) attributed to common shareholders	$	(2.3	)	$	(0.1	)	$	(6.8	)	$	—	$	3.3		$	(1.0	)	$	4.6	$	(2.3	)

35

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Six Months Ended June 30, 2014
		Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	—		$	—	$	156.6		$	2.6		$	—		$	159.2
Costs and expenses:
Property operating expenses		—			—		—			—		58.3			1.2			—			59.5
Sales and marketing		—			—		—			—		6.4			0.1			—			6.5
General and administrative		—			—		—			—		15.6			0.1			—			15.7
Depreciation and amortization		—			—		—			—		55.9			1.5			—			57.4
Transaction costs		—			—		—			—		0.9			—			—			0.9
Total costs and expenses		—			—		—			—		137.1			2.9			—			140.0
Operating income (loss)		—			—		—			—		19.5			(0.3		)	—			19.2
Interest expense		—			—		19.3			—		0.3			1.8			—			21.4
Income (loss) before income taxes		—			—		(19.3		)	—		19.2			(2.1		)	—			(2.2		)
Income tax expense		—			—		—			—		(0.7		)	—			—			(0.7		)
Equity earnings (loss) related to investment in subsidiaries		(2.9		)	—		16.4			—		(2.1		)	—			(11.4		)	—
Net income (loss)		(2.9		)	—		(2.9		)	—		16.4			(2.1		)	(11.4		)	(2.9		)
Noncontrolling interest in net loss		(2.0		)	—		—			—		—			—			—			(2.0		)
Net income (loss) attributed to common shareholders		$	(0.9	)	$	—	$	(2.9	)	$	—	$	16.4		$	(2.1	)	$	(11.4	)	$	(0.9	)

(dollars in millions)	Period Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—		$	—		$	—		$	—	$	107.0		$	1.6		$	—	$	108.6
Costs and expenses:
Property operating expenses	—			—			—			—		38.8			1.1			—		39.9
Sales and marketing	—			—			—			—		4.9			0.1			—		5.0
General and administrative	—			—			—			—		12.5			—			—		12.5
Depreciation and amortization	—			—			—			—		38.1			1.3			—		39.4
Transaction costs	—			—			—			—		0.4			—			—		0.4
Total costs and expenses	—			—			—			—		94.7			2.5			—		97.2
Operating income (loss)	—			—			—			—		12.3			(0.9		)	—		11.4
Interest expense	—			—			17.3			—		0.9			1.0			—		19.2
Loss on extinguishment of debt	—			—			—			—		1.3			—			—		1.3
Income (loss) before income taxes	—			—			(17.3		)	—		10.1			(1.9		)	—		(9.1		)
Income tax expense	—			—			—			—		(0.5		)	—			—		(0.5		)
Equity earnings (loss) related to investment in subsidiaries	(9.6		)	(0.1		)	7.7			—		(1.9		)	—			3.9		—
Net income (loss)	(9.6		)	(0.1		)	(9.6		)	—		7.7			(1.9		)	3.9		(9.6		)
Noncontrolling interest in net loss	(6.4		)	—			—			—		—			—			—		(6.4		)
Net income (loss) attributed to common shareholders	$	(3.2	)	$	(0.1	)	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	3.9	$	(3.2	)

36

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended January 23, 2013
	Parent Guarantor		General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—	$	—	$	—		$	—	$	14.9		$	0.2		$	—	$	15.1
Costs and expenses:
Property operating expenses	—		—		—			—		4.8			—			—		4.8
Sales and marketing	—		—		—			—		0.7			—			—		0.7
General and administrative	—		—		—			—		1.4			0.1			—		1.5
Transaction-related compensation	—		—		—			—		20.0			—			—		20.0
Depreciation and amortization	—		—		—			—		5.2			0.1			—		5.3
Transaction costs	—		—		—			—		0.1			—			—		0.1
Total costs and expenses	—		—		—			—		32.2			0.2			—		32.4
Operating loss	—		—		—			—		(17.3		)	—			—		(17.3		)
Interest expense	—		—		2.3			—		0.1			0.1			—		2.5
Loss before income taxes	—		—		(2.3		)	—		(17.4		)	(0.1		)	—		(19.8		)
Income tax expense	—		—		—			—		(0.4		)	—			—		(0.4		)
Equity earnings (loss) related to investment in subsidiaries	—		—		(17.9		)	—		(0.1		)	—			18.0		—
Net loss	$	—	$	—	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0	$	(20.2	)

37

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Statements of Cash Flows

(dollars in millions)	Six Months Ended June 30, 2014
	Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(2.9	)	$	—	(2.9		)	$	—	$	16.4		$	(2.1	)	$	(11.4	)	$	(2.9	)
Equity (income) loss related to investment in subsidiaries	2.9			—		(16.4		)	—		2.1			—			11.4			—
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	—			—		—			—		55.9			1.5			—			57.4
Noncash interest expense	—			—		1.8			—		—			—			—			1.8
Stock-based compensation expense	—			—		—			—		5.0			—			—			5.0
Provision for bad debt write off	—			—		—			—		0.6			—			—			0.6
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		(0.1		)	—		(29.7		)	(1.6		)	—			(31.4		)
Accounts payable and accrued expenses	—			—		4.8			—		(2.8		)	0.5			—			2.5
Deferred revenues	—			—		—			—		11.2			(0.4		)	—			10.8
Due to affiliates	—			—		—			—		0.2			—			—			0.2
Net cash provided by (used in) operating activities	—			—		(12.8		)	—		58.9			(2.1		)	—			44.0
Cash flows from investing activities:
Capital expenditures - other development	—			—		—			—		(116.8		)	—			—			(116.8		)
Intercompany advances	—			—		—			—		0.2			(0.2		)	—			—
Return of investment	24.5			—		37.3			—		(13.3		)	—			(48.5		)	—
Net cash provided by (used in) investing activities	24.5			—		37.3			—		(129.9		)	(0.2		)	(48.5		)	(116.8		)
Cash flows from financing activities:
Issuance of common stock	355.9			—		—			—		—			—			—			355.9
Stock issuance costs	(0.5		)	—		—			—		—			—			—			(0.5		)
Acquisition of partnership units	(355.9		)	—		—			—		—			—			—			(355.9		)
Dividends paid	(24.0		)	—		(24.0		)	—		(24.0		)	—			48.0			(24.0		)
Payments on capital leases and other financing arrangements	—			—		—			—		(1.9		)	(0.3		)	—			(2.2		)
Contributions (distributions) from parent guarantor	—			—		(0.5		)	—		(5.1		)	5.1			0.5			—
Net cash (used in) provided by financing activities	(24.5		)	—		(24.5		)	—		(31.0		)	4.8			48.5			(26.7		)
Net (decrease) increase in cash and cash equivalents	—			—		—			—		(102.0		)	2.5			—			(99.5		)
Cash and cash equivalents at beginning of period	—			—		—			—		146.8			2.0			—			148.8
Cash and cash equivalents at end of period	$	—		$	—	$	—		$	—	$	44.8		$	4.5		$	—		$	49.3

38

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(9.6	)	$	(0.1	)	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	3.9		$	(9.6	)
Equity loss (income) related to investment in subsidiaries	9.6			0.1			(7.7		)	—		1.9			—			(3.9		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—			—			—		38.1			1.3			—			39.4
Noncash interest expense	—			—			2.0			—		(1.0		)	—			—			1.0
Stock-based compensation expense	—			—			—			—		3.0			—			—			3.0
Loss on extinguishment of debt	—			—			—			—		1.3			—			—			1.3
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—			—			—		10.4			(0.4		)	—			10.0
Accounts payable and accrued expenses	—			—			15.2			—		(34.7		)	0.4			—			(19.1		)
Deferred revenues	—			—			—			—		(3.1		)	(0.1		)	—			(3.2		)
Due to affiliates	—			—			—			—		16.7			—			—			16.7
Net cash (used in) provided by operating activities	—			—			(0.1		)	—		40.3			(0.7		)	—			39.5
Cash flows from investing activities:
Capital expenditures - acquisitions of real estate	—			—			—			—		(26.6		)	—			—			(26.6		)
Capital expenditures - other development	—			—			—			—		(66.9		)	(0.1		)	—			(67.0		)
Release of restricted cash	—			—			—			—		4.4			—			—			4.4
Investment in subsidiaries	(337.1		)	—			(337.1		)	—		—			—			674.2			—
Advances to affiliate	—			—			—			—		(0.1		)	0.1			—			—
Net cash used in investing activities	(337.1		)	—			(337.1		)	—		(89.2		)	—			674.2			(89.2		)
Cash flows from financing activities:
Issuance of common stock/partnership units	360.5			—			337.1			—		—			—			(337.1		)	360.5
IPO costs	(23.4		)	—			—			—		—			—			—			(23.4		)
Dividends paid	—			—			—			—		(10.3		)	—			—			(10.3		)
Payments on capital leases and other financing arrangements	—			—			—			—		(2.0		)	(0.5		)	—			(2.5		)
Payments to buyout capital leases	—			—			—			—		(9.6		)	—			—			(9.6		)
Payments to buyout other financing arrangement	—			—			—			—		(10.2		)	—			—			(10.2		)
Contribution from parent guarantor	—			—			—			—		335.4			1.7			(337.1		)	—
Net cash provided by financing activities	337.1			—			337.1			—		303.3			1.2			(674.2		)	304.5
Net (decrease) increase in cash and cash equivalents	—			—			(0.1		)	—		254.4			0.5			—			254.8
Cash and cash equivalents at beginning of period	—			—			0.1			—		11.2			1.0			—			12.3
Cash and cash equivalents at end of period	$	—		$	—		$	—		$	—	$	265.6		$	1.5		$	—		$	267.1

39

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended January 23, 2013
	Parent Guarantor		General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	—	$	—	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0		$	(20.2	)
Equity loss (income) related to investment in subsidiaries	—		—		17.9			—		0.1			—			(18.0		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities	—		—		0.2			—		5.6			0.1			—			5.9
Changes in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—		—		—			—		(9.6		)	—			—			(9.6		)
Accounts payable and accrued expenses	—		—		2.1			—		18.4			—			—			20.5
Due to affiliates	—		—		—			—		1.5			—			—			1.5
Other changes in assets and liabilities	—		—		—			—		3.8			0.1			—			3.9
Net cash provided by operating activities	—		—		—			—		1.9			0.1			—			2.0
Cash flows from investing activities:
Capital expenditures - other development	—		—		—			—		(7.7		)	—			—			(7.7		)
Release of restricted cash	—		—		—			—		1.9			—			—			1.9
Intercompany advances	—		—		0.1			—		(0.1		)	—			—			—
Net cash provided by (used in) investing activities	—		—		0.1			—		(5.9		)	—			—			(5.8		)
Cash flows from financing activities:
Payments on capital lease obligations	—		—		—			—		(0.6		)	—			—			(0.6		)
Contributions from parent, net	—		—		—			—		0.2			—			—			0.2
Net cash used in financing activities	—		—		—			—		(0.4		)	—			—			(0.4		)
Net increase (decrease) in cash and cash equivalents	—		—		0.1			—		(4.4		)	0.1			—			(4.2		)
Cash and cash equivalents at beginning of period	—		—		—			—		15.6			0.9			—			16.5
Cash and cash equivalents at end of period	$	—	$	—	$	0.1		$	—	$	11.2		$	1.0		$	—		$	12.3

40

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

CyrusOne LP

CyrusOne LP and CyrusOne Finance Corp., as “LP Co-issuer” and “Finance Co-issuer,” respectively (together, the “Issuers”), had $525 million aggregate principal amount of Senior Notes outstanding at June 30, 2014. The Senior Notes are fully and unconditionally and jointly and severally guaranteed on a senior basis by CyrusOne Inc. (“Parent Guarantor”), CyrusOne GP (“General Partner”), and CyrusOne LP’s 100% owned subsidiaries, CyrusOne LLC, CyrusOne TRS Inc. and CyrusOne Foreign Holdings LLC (such subsidiaries, together the “Guarantors”). None of the subsidiaries organized outside of the United States (collectively, the “Non-Guarantors”) guarantee the Senior Notes. Subject to the provisions of the indenture governing the Senior Notes, in certain circumstances, a Guarantor may be released from its guarantee obligation, including:

• upon the sale or other disposition (including by way of consolidation or merger) of such Guarantor or of all of the capital stock of such Guarantor such that such Guarantor is no longer a restricted subsidiary under the indenture,

• upon the sale or disposition of all or substantially all of the assets of the Guarantor,

• upon the LP Co-issuer designating such Guarantor as an unrestricted subsidiary under the terms of the indenture,

• if such Guarantor is no longer a guarantor or other obligor of any other indebtedness of the LP Co-issuer or the Parent Guarantor, and

• upon the defeasance or discharge of the Senior Notes in accordance with the terms of the indenture.

The following provides information regarding the entity structure of each guarantor of the Senior Notes:

CyrusOne Inc. – CyrusOne Inc. was formed on July 31, 2012. As of January 23, 2013, CyrusOne Inc. was a wholly-owned subsidiary of CBI. Effective January 24, 2013, CyrusOne Inc. completed its IPO of common stock for net proceeds of $337.1 million, and together with the General Partner, purchased a 33.9% ownership interest in CyrusOne LP. As of June 25, 2014, CyrusOne Inc. increased its ownership in CyrusOne LP to 59.2%. CyrusOne Inc. also represents a guarantor or Parent Guarantor and became a separate registrant with the SEC upon completion of its IPO.

CyrusOne GP – CyrusOne GP was formed on July 31, 2012, and was a 100% owned subsidiary of CyrusOne Inc. as of January 23, 2013. Effective upon completion of CyrusOne Inc.’s IPO, this entity became the general partner and 1% owner of CyrusOne LP and has no other assets or operations. Prior to the IPO, this entity did not incur any obligations or record any transactions.

Issuers – The Issuers include CyrusOne LP and CyrusOne Finance Corp. CyrusOne Finance Corp., a 100% owned subsidiary of CyrusOne LP, was formed for the sole purpose of acting as co-issuer of the Senior Notes and has no other assets or operations. CyrusOne LP, in addition to being the co-issuer of the Senior Notes, is also the 100% owner, either directly or indirectly, of the Guarantors and Non-Guarantors.

Guarantors – The guarantors include CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. CyrusOne LLC accounts for all of the domestic operations of CyrusOne LP, including the businesses that composed the Predecessor operations. CyrusOne LLC, together with CyrusOne Foreign Holdings LLC, directly or indirectly owns 100% of the Non-Guarantors. CyrusOne TRS Inc. had not incurred any obligations or recorded any material transactions for the three and six months ended June 30, 2014, the three months ended June 30, 2013 or the period ended June 30, 2013.

As of June 30, 2014, the Non-Guarantors consist of 100% owned subsidiaries which conduct operations in the United Kingdom and Singapore.

The following schedules present the balance sheets as of June 30, 2014 and December 31, 2013 for the LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantor. The following schedules also present the statements of operations and statements of cash flows for the three and six months ended June 30, 2014, the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, for the LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantors.

41

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Balance Sheets

(dollars in millions)	As of June 30, 2014
	LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	89.7		$	—		$	—		$	89.7
Buildings and improvements	—		—		746.3			45.4			—			791.7
Equipment	—		—		297.9			0.9			—			298.8
Construction in progress	—		—		59.5			—			—			59.5
Subtotal	—		—		1,193.4			46.3			—			1,239.7
Accumulated depreciation	—		—		(274.2		)	(6.4		)	—			(280.6		)
Net investment in real estate	—		—		919.2			39.9			—			959.1
Cash and cash equivalents	—		—		44.8			4.5			—			49.3
Investment in subsidiaries	773.7		—		5.1			—			(778.8		)	—
Rent and other receivables	—		—		59.2			2.3			—			61.5
Intercompany receivable	508.1		—		—			—			(508.1		)	—
Goodwill	—		—		276.2			—			—			276.2
Intangible assets, net	—		—		77.4			—			—			77.4
Due from affiliates	—		—		0.5			—			—			0.5
Other assets	12.4		—		66.2			3.5			—			82.1
Total assets	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(1,286.9	)	$	1,506.1
Accounts payable and accrued expenses	$	12.6	$	—	$	70.4		$	0.9		$	—		$	83.9
Deferred revenue	—		—		66.3			0.4			—			66.7
Intercompany payable	—		—		508.1			—			(508.1		)	—
Due to affiliates	5.6		—		1.8			—			—			7.4
Capital lease obligations	—		—		7.0			8.0			—			15.0
Long-term debt	525.0		—		—			—			—			525.0
Other financing arrangements	—		—		21.3			35.8			—			57.1
Total liabilities	543.2		—		674.9			45.1			(508.1		)	755.1
Total partnership capital	751.0		—		773.7			5.1			(778.8		)	751.0
Total liabilities and partnership capital	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(1,286.9	)	$	1,506.1

42

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	As of December 31, 2013
	LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	89.3		$	—		$	—		$	89.3
Buildings and improvements	—		—		739.6			44.1			—			783.7
Equipment	—		—		189.4			0.8			—			190.2
Construction in progress	—		—		57.3			—			—			57.3
Subtotal	—		—		1,075.6			44.9			—			1,120.5
Accumulated depreciation	—		—		(232.0		)	(4.7		)	—			(236.7		)
Net investment in real estate	—		—		843.6			40.2			—			883.8
Cash and cash equivalents	—		—		146.8			2.0			—			148.8
Investment in subsidiaries	795.0		—		2.1			—			(797.1		)	—
Rent and other receivables	—		—		40.3			0.9			—			41.2
Intercompany receivable	508.1		—		0.2			—			(508.3		)	—
Goodwill	—		—		276.2			—			—			276.2
Intangible assets, net	—		—		85.9			—			—			85.9
Due from affiliates	—		—		0.6			—			—			0.6
Other assets	14.1		—		53.0			3.2			—			70.3
Total assets	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(1,305.4	)	$	1,506.8
Accounts payable and accrued expenses	$	7.8	$	—	$	58.6		$	0.4		$	—		$	66.8
Deferred revenue	—		—		55.1			0.8			—			55.9
Intercompany payable	—		—		508.1			0.2			(508.3		)	—
Due to affiliates	6.8		—		1.7			—			—			8.5
Capital lease obligations	—		—		8.6			8.1			—			16.7
Long-term debt	525.0		—		—			—			—			525.0
Other financing arrangements	—		—		21.6			34.7			—			56.3
Total liabilities	539.6		—		653.7			44.2			(508.3		)	729.2
Total partnership capital	777.6		—		795.0			2.1			(797.1		)	777.6
Total liabilities and partnership capital	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(1,305.4	)	$	1,506.8

43

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Statements of Operations

(dollars in millions)	Three Months Ended June 30, 2014
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	80.4		$	1.3		$	—		$	81.7
Costs and expenses:
Property operating expenses		—			—		31.2			0.6			—			31.8
Sales and marketing		—			—		3.4			0.1			—			3.5
General and administrative		—			—		8.4			—			—			8.4
Depreciation and amortization		—			—		29.1			0.7			—			29.8
Transaction costs		—			—		0.8			—			—			0.8
Total costs and expenses		—			—		72.9			1.4			—			74.3
Operating income (loss)		—			—		7.5			(0.1		)	—			7.4
Interest expense		9.7			—		0.1			0.9			—			10.7
Income (loss) before income taxes		(9.7		)	—		7.4			(1.0		)	—			(3.3		)
Income tax expense		—			—		(0.3		)	—			—			(0.3		)
Partnership earnings (loss) related to investment in subsidiaries		6.1			—		(1.0		)	—			(5.1		)	—
Net income (loss)		$	(3.6	)	$	—	$	6.1		$	(1.0	)	$	(5.1	)	$	(3.6	)

(dollars in millions)	Three Months Ended June 30, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue	$	—		$	—	$	62.5		$	1.1		$	—		$	63.6
Costs and expenses:
Property operating expenses	—			—		23.8			0.8			—			24.6
Sales and marketing	—			—		2.8			0.1			—			2.9
General and administrative	—			—		7.1			—			—			7.1
Depreciation and amortization	—			—		22.3			0.7			—			23.0
Transaction costs	—			—		0.4			—			—			0.4
Total costs and expenses	—			—		56.4			1.6			—			58.0
Operating income (loss)	—			—		6.1			(0.5		)	—			5.6
Interest expense	10.1			—		0.2			0.5			—			10.8
Loss on extinguishment of debt	—			—		1.3			—			—			1.3
Income (loss) before income taxes	(10.1		)	—		4.6			(1.0		)	—			(6.5		)
Income tax expense	—			—		(0.3		)	—			—			(0.3		)
Partnership earnings (loss) related to investment in subsidiaries	3.3			—		(1.0		)	—			(2.3		)	—
Net income (loss)	$	(6.8	)	$	—	$	3.3		$	(1.0	)	$	(2.3	)	$	(6.8	)

44

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Six Months Ended June 30, 2014
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	156.6		$	2.6		$	—		$	159.2
Costs and expenses:
Property operating expenses		—			—		58.3			1.2			—			59.5
Sales and marketing		—			—		6.4			0.1			—			6.5
General and administrative		—			—		15.6			0.1			—			15.7
Depreciation and amortization		—			—		55.9			1.5			—			57.4
Transaction costs		—			—		0.9			—			—			0.9
Total costs and expenses		—			—		137.1			2.9			—			140.0
Operating income (loss)		—			—		19.5			(0.3		)	—			19.2
Interest expense		19.3			—		0.3			1.8			—			21.4
Income (loss) before income taxes		(19.3		)	—		19.2			(2.1		)	—			(2.2		)
Income tax expense		—			—		(0.7		)	—			—			(0.7		)
Partnership earnings (loss) related to investment in subsidiaries		16.4			—		(2.1		)	—			(14.3		)	—
Net income (loss)		(2.9		)	—		16.4			(2.1		)	(14.3		)	(2.9		)

(dollars in millions)	Period Ended June 30, 2013
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	107.0		$	1.6		$	—		$	108.6
Costs and expenses:
Property operating expenses		—			—		38.8			1.1			—			39.9
Sales and marketing		—			—		4.9			0.1			—			5.0
General and administrative		—			—		12.5			—			—			12.5
Depreciation and amortization		—			—		38.1			1.3			—			39.4
Transaction costs		—			—		0.4			—			—			0.4
Total costs and expenses		—			—		94.7			2.5			—			97.2
Operating income (loss)		—			—		12.3			(0.9		)	—			11.4
Interest expense		17.3			—		0.9			1.0			—			19.2
Loss on extinguishment of debt		—			—		1.3			—			—			1.3
Income (loss) before income taxes		(17.3		)	—		10.1			(1.9		)	—			(9.1		)
Income tax expense		—			—		0.5			—			—			0.5
Partnership earnings (loss) related to investment in subsidiaries		7.7			—		(1.9		)	—			(5.8		)	—
Net income (loss)		$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	(5.8	)	$	(9.6	)

45

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended January 23, 2013
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue		$	—		$	—	$	14.9		$	0.2		$	—	$	15.1
Costs and expenses:
Property operating expenses		—			—		4.8			—			—		4.8
Sales and marketing		—			—		0.7			—			—		0.7
General and administrative		—			—		1.4			0.1			—		1.5
Transaction-related compensation		—			—		20.0			—			—		20.0
Depreciation and amortization		—			—		5.2			0.1			—		5.3
Transaction costs		—			—		0.1			—			—		0.1
Total costs and expenses		—			—		32.2			0.2			—		32.4
Operating loss		—			—		(17.3		)	—			—		(17.3		)
Interest expense		2.3			—		0.1			0.1			—		2.5
Loss before income taxes		(2.3		)	—		(17.4		)	(0.1		)	—		(19.8		)
Income tax expense		—			—		(0.4		)	—			—		(0.4		)
Partnership earnings (loss) related to investment in subsidiaries		(17.9		)	—		(0.1		)	—			18.0		—
Net loss		$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0	$	(20.2	)

46

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

Condensed Consolidating Statements of Cash Flows

(dollars in millions)	Six Months Ended June 30, 2014
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(2.9	)	$	—	$	16.4		$	(2.1	)	$	(14.3	)	$	(2.9	)
Partnership (income) loss related to investment in subsidiaries	(16.4		)	—		2.1			—			14.3			—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—		55.9			1.5			—			57.4
Noncash interest expense	1.8			—		—			—			—			1.8
Stock-based compensation expense	—			—		5.0			—			—			5.0
Provision for bad debt write off	—			—		0.6			—			—			0.6
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	(0.1		)	—		(29.7		)	(1.6		)	—			(31.4		)
Accounts payable and accrued expenses	4.8			—		(2.8		)	0.5			—			2.5
Deferred revenues	—			—		11.2			(0.4		)	—			10.8
Due to affiliates	—			—		0.2			—			—			0.2
Net cash provided by (used in) operating activities	(12.8		)	—		58.9			(2.1		)	—			44.0
Cash flows from investing activities:
Capital expenditures - other	—			—		(116.8		)	—			—			(116.8		)
Intercompany advances	—			—		0.2			(0.2		)	—			—
Return of investment	37.3			—		(13.3		)	—			(24.0		)	—
Net cash provided by (used in) investing activities	37.3			—		(129.9		)	(0.2		)	(24.0		)	(116.8		)
Cash flows from financing activities:
Distributions paid	(24.0		)	—		(24.0		)	—			24.0			(24.0		)
Payments on capital leases and other financing arrangements	—			—		(1.9		)	(0.3		)	—			(2.2		)
Contributions (distributions) from parent guarantor	(0.5		)	—		(5.1		)	5.1			—			(0.5		)
Net cash provided by (used in) financing activities	(24.5		)	—		(31.0		)	4.8			24.0			(26.7		)
Net (decrease) increase in cash and cash equivalents	—			—		(102.0		)	2.5			—			(99.5		)
Cash and cash equivalents at beginning of period	—			—		146.8			2.0			—			148.8
Cash and cash equivalents at end of period	$	—		$	—	$	44.8		$	4.5		$	—		$	49.3

47

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended June 30, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	(5.8	)	$	(9.6	)
Partnership (income) loss related to investment in subsidiaries	(7.7		)	—		1.9			—			5.8			—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—		38.1			1.3			—			39.4
Noncash interest expense	2.0			—		(1.0		)	—			—			1.0
Stock-based compensation expense	—			—		3.0			—			—			3.0
Loss on extinguishment of debt	—			—		1.3			—			—			1.3
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		10.4			(0.4		)	—			10.0
Accounts payable and accrued expenses	15.2			—		(34.7		)	0.4			—			(19.1		)
Deferred revenues	—			—		(3.1		)	(0.1		)	—			(3.2		)
Due to affiliates	—			—		16.7			—			—			16.7
Net cash (used in) provided by operating activities	(0.1		)	—		40.3			(0.7		)	—			39.5
Cash flows from investing activities:
Capital expenditures - acquisitions of real estate	—			—		(26.6		)	—			—			(26.6		)
Capital expenditures - other development	—			—		(66.9		)	(0.1		)	—			(67.0		)
Release of restricted cash	—			—		4.4			—			—			4.4
Investment in subsidiaries	(337.1		)	—		—			—			337.1			—
Advances to affiliate	—			—		(0.1		)	0.1			—			—
Net cash used in investing activities	(337.1		)	—		(89.2		)	—			337.1			(89.2		)
Cash flows from financing activities:
Issuance of partnership units	337.1			—		—			—			—			337.1
Distributions paid	—			—		(10.3		)	—			—			(10.3		)
Payments on capital leases and other financing arrangements	—			—		(2.0		)	(0.5		)	—			(2.5		)
Payments to buyout capital leases	—			—		(9.6		)	—			—			(9.6		)
Payments to buyout other financing arrangement	—			—		(10.2		)	—			—			(10.2		)
Contribution from parent guarantor	—			—		335.4			1.7			(337.1		)	—
Net cash provided by financing activities	337.1			—		303.3			1.2			(337.1		)	304.5
Net (decrease) increase in cash and cash equivalents	(0.1		)	—		254.4			0.5			—			254.8
Cash and cash equivalents at beginning of period	0.1			—		11.2			1.0			—			12.3
Cash and cash equivalents at end of period	$	—		$	—	$	265.6		$	1.5		$	—		$	267.1

48

CyrusOne Inc. and CyrusOne LP

NOTES TO CONDENSED CONSOLIDATED AND COMBINED FINANCIAL STATEMENTS - (unaudited)

(dollars in millions)	Period Ended January 23, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0		$	(20.2	)
Partnership loss (income) related to investment in subsidiaries	17.9			—		0.1			—			(18.0		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities	0.2			—		5.6			0.1			—			5.9
Changes in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		(9.6		)	—			—			(9.6		)
Accounts payable and accrued expenses	2.1			—		18.4			—			—			20.5
Due to affiliates	—			—		1.5			—			—			1.5
Other changes in assets and liabilities	—			—		3.8			0.1			—			3.9
Net cash provided by operating activities	—			—		1.9			0.1			—			2.0
Cash flows from investing activities:
Capital expenditures - other development	—			—		(7.7		)	—			—			(7.7		)
Release of restricted cash	—			—		1.9			—			—			1.9
Intercompany advances	0.1			—		(0.1		)	—			—			—
Net cash provided by (used in) investing activities	0.1			—		(5.9		)	—			—			(5.8		)
Cash flows from financing activities:
Payments on capital lease obligations	—			—		(0.6		)	—			—			(0.6		)
Contributions from parent, net	—			—		0.2			—			—			0.2
Net cash used in financing activities	—			—		(0.4		)	—			—			(0.4		)
Net increase (decrease) in cash and cash equivalents	0.1			—		(4.4		)	0.1			—			(4.2		)
Cash and cash equivalents at beginning of period	—			—		15.6			0.9			—			16.5
Cash and cash equivalents at end of period	$	0.1		$	—	$	11.2		$	1.0		$	—		$	12.3

49

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Report on Form 10-Q (this “Quarterly Report”), together with other statements and information publicly disseminated by our company, contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995 and include this statement for purposes of complying with these safe harbor provisions.

In particular, statements pertaining to our capital resources, portfolio performance, financial condition and results of operations contain certain forward-looking statements. You can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” "approximately,"“intends,” “plans” "estimates," or “anticipates” or the negative of these words and phrases or similar words or phrases that are predictions of or indicate future events or trends and that do not relate solely to historical matters. You can also identify forward-looking statements by discussions of strategy, plans or intentions. Such statements are subject to risks, uncertainties and assumptions and are not guarantees of future performance, which may be affected by known and unknown risks, trends, uncertainties and factors that are beyond our control. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements: (i) the geographic concentration of our data centers in certain markets and any adverse developments in local economic conditions or the demand for data center space in these markets; (ii) increased operating costs; (iii) difficulties in identifying properties to acquire and completing acquisitions; (iv) the significant competition in our industry and an inability to lease vacant space, renew existing leases or release space as leases expire; (v) lack of sufficient customer demand to realize expected returns on our investments to expand our property portfolio; (vi) decreased revenue from costs and disruptions associated with any failure of our physical infrastructure or services; (vii) our ability to lease available space to existing or new customers; (viii) our failure to obtain necessary outside financing; (ix) our failure to qualify as a REIT; (x) financial market fluctuations; (xi) changes in real estate and zoning laws and increases in real property tax rates; (xii) delays or disruptions in third-party network connectivity; (xiii) service failures or price increases by third party power suppliers; (xiv) inability to renew net leases on the data center properties we lease; and (xv) other factors affecting the real estate industry generally.

While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. We disclaim any obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, of new information, data or methods, future events or other changes. The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance, including factors and risks included in other sections of this Quarterly Report. Additional information concerning these and other risks and uncertainties is contained in our other periodic filings with the United States Securities and Exchange Commission, or SEC, pursuant to the Exchange Act. We discussed a number of material risks in Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2013. Those risks continue to be relevant to our performance and financial condition. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results.

Presentation

References in this Quarterly Report to “Successor” refers to the Company on or after January 24, 2013 and “Predecessor” are the results prior to January 24, 2013. The Predecessor results have been prepared on a “carve-out” basis from CBI’s

consolidated financial statements using the historical results of operations, cash flows, assets and liabilities attributable to the data center business. These allocations reflect significant assumptions, and the combined financial statements do not fully reflect what the financial position, results of operations and cash flows would have been had CyrusOne been a stand-alone company during the periods presented. As a result, historical financial information is not necessarily indicative of CyrusOne’s future results of operations, financial position and cash flows. The related financial statement tables will be presented showing the statements that relate to the Predecessor as well as the Successor. The results of both the Predecessor and Successor are presented separately but will be discussed on a combined basis for comparability purposes.

50

Overview

Our Company. We are an owner, operator and developer of enterprise-class, carrier-neutral data center properties. Enterprise-class, carrier-neutral data centers are purpose-built facilities with redundant power, cooling and access to a range of telecommunications carriers. We provide mission-critical data center facilities that protect and ensure the continued operation of information technology (“IT”) infrastructure for 648 customers in 25 operating data centers in ten distinct markets (eight cities in the U.S., London and Singapore).

We provide mission-critical data center facilities that protect and ensure the continued operation of IT infrastructure for our customers. Our goal is to be the preferred global data center provider to the Fortune 1000. As of June 30, 2014, our customers included nine of the Fortune 20 and 139 of the Fortune 1000 or private or foreign enterprises of equivalent size. These 139 Fortune 1000 customers provided 75% of our annualized rent as of June 30, 2014. Additionally, as of June 30, 2014, our top 10 customers represented 42% of our annualized rent.

We cultivate long-term strategic relationships with our customers and provide them with solutions for their data center facilities and IT infrastructure challenges. Our offerings provide flexibility, reliability and security delivered through a tailored, customer service focused platform that is designed to foster long-term relationships. We focus on attracting customers that have not historically outsourced their data center needs and providing them with solutions that address their current and future needs. Our facilities and construction design allow us to offer flexibility in density, power resiliency and the opportunity for expansion as our customers' needs grow. The National IX Platform delivers interconnection across states and between metro-enabled sites within the CyrusOne footprint and beyond. The platform enables high-performance, low-cost data transfer and accessibility for customers by uniting all of our data centers.

Our Portfolio. As of June 30, 2014, our property portfolio included 25 operating data centers in ten distinct markets collectively providing approximately 2,170,000 net rentable square feet ("NRSF"), of which 84% was leased, and powered by approximately 183 MW of available UPS capacity. We own fourteen of the buildings in which our data center facilities are located. We lease the remaining eleven buildings, which account for approximately 375,000 NRSF, or approximately 17% of our total operating NRSF. These leased buildings accounted for 23% of our total annualized rent as of June 30, 2014. We also currently have 706,000 NRSF under development, as well as 551,000 NRSF of additional powered shell space under roof available for development. In addition, we have approximately 200 acres of land that are available for future data center shell development. Along with our primary product offering, leasing of colocation space, our customers are increasingly interested in ancillary office and other space. We believe our existing operating portfolio and development pipeline will allow us to meet the evolving needs of our existing customers and continue to attract new customers.  The following tables provide an overview of our operating and development properties as of June 30, 2014.

51

CyrusOne Inc.

Data Center Portfolio

As of June 30, 2014

(Unaudited)

				Operating Net Rentable Square Feet (NRSF)(a)										Powered Shell  Available for Future  Development (NRSF)(j)	Available UPS Capacity  (MW)(k)
Facilities	Metro Area	Annualized Rent(b)		Colocation Space (CSF)(c)	CSF Leased(d)		CSF Utilized(e)		Office & Other(f)	Office & Other Leased (g)		Supporting Infrastructure (h)	Total(i)
Westway Park Blvd. (Houston West 1)	Houston	$	50,875,170	112,133	97	%	97	%	10,563	98	%	37,063	159,759	3,000	28
S. State Hwy 121 Business (Lewisville)*	Dallas	39,772,133		108,687	97	%	97	%	11,279	96	%	59,345	179,311	—	18
Southwest Fwy. (Galleria)	Houston	37,536,283		63,469	92	%	92	%	17,259	69	%	23,203	103,931	—	14
West Seventh Street (7th St.)***	Cincinnati	34,540,103		211,742	90	%	91	%	5,744	100	%	171,561	389,047	37,000	13
Fujitec Drive (Lebanon)	Cincinnati	23,046,267		65,303	81	%	81	%	44,886	72	%	52,950	163,139	65,000	14
W. Frankford Road (Carrollton)	Dallas	20,001,025		170,531	64	%	65	%	13,745	70	%	66,061	250,337	334,000	18
Westover Hills Blvd. (San Antonio 1)	San Antonio	17,856,512		43,843	100	%	100	%	5,633	85	%	45,939	95,415	11,000	12
Industrial Road (Florence)	Cincinnati	14,856,505		52,698	100	%	100	%	46,848	87	%	40,374	139,920	—	9
South Ellis Street (Phoenix 1)	Phoenix	14,531,119		77,528	97	%	98	%	34,471	10	%	38,441	150,440	31,000	16
Knightsbridge Drive (Hamilton)*	Cincinnati	11,436,136		46,565	83	%	83	%	1,077	100	%	35,336	82,978	—	10
Westway Park Blvd. (Houston West 2)	Houston	8,069,274		79,492	68	%	68	%	3,112	31	%	55,642	138,246	12,000	12
Metropolis Drive (Austin 2)	Austin	8,032,540		37,780	82	%	82	%	4,128	17	%	18,444	60,352	—	5
E. Ben White Blvd. (Austin 1)*	Austin	6,206,419		16,223	87	%	87	%	21,376	100	%	7,516	45,115	—	2
Parkway Dr. (Mason)	Cincinnati	5,753,058		34,072	100	%	100	%	26,458	98	%	17,193	77,723	—	4
Kestral Way (London)**	London	4,872,910		10,000	99	%	99	%	—	—	%	—	10,000	—	1
Midway Rd.**	Dallas	4,388,742		8,390	100	%	100	%	—	—	%	—	8,390	—	1
Springer Street (Lombard)	Chicago	2,551,385		13,516	54	%	54	%	4,115	100	%	12,230	29,861	29,000	3
Marsh Ln.**	Dallas	2,107,312		4,245	100	%	100	%	—	—	%	—	4,245	—	1
Goldcoast Drive (Goldcoast)	Cincinnati	1,465,776		2,728	100	%	100	%	5,280	100	%	16,481	24,489	14,000	1
North Fwy. (Greenspoint)**	Houston	1,009,589		13,000	100	%	100	%	1,449	100	%	—	14,449	—	1
Bryan St.**	Dallas	979,973		3,020	57	%	57	%	—	—	%	—	3,020	—	1
E. Monroe Street (Monroe St.)	South Bend	937,505		6,350	64	%	64	%	—	—	%	6,478	12,828	4,000	1
McAuley Place (Blue Ash)*	Cincinnati	512,213		6,193	39	%	39	%	6,950	100	%	2,166	15,309	—	1
Crescent Circle (Blackthorn)*	South Bend	401,055		3,432	31	%	31	%	—	—	%	5,125	8,557	11,000	1
Jurong East (Singapore)**	Singapore	311,280		3,200	19	%	19	%	—	—	%	—	3,200	—	1
Total		$	312,050,284	1,194,140	86	%	86	%	264,373	75	%	711,548	2,170,061	551,000	183

* Indicates properties in which we hold a leasehold interest in the building shell and land. All data center infrastructure has been constructed by us and owned by us.

** Indicates properties in which we hold a leasehold interest in the building shell, land, and all data center infrastructure.

*** The information provided for the West Seventh Street (7th St.) property includes data for two facilities, one of which we lease and one of which we own.

52

(a) Represents the total square feet of a building under lease or available for lease based on engineers' drawings and estimates but does not include space held for development or space used by CyrusOne.

(b) Represents monthly contractual rent (defined as cash rent including customer reimbursements for metered power) under existing customer leases as of June 30, 2014, multiplied by 12. For the month of June 2014, our total annualized rent was $312.1 million, customer reimbursements were $44.2 million annualized and consisted of reimbursements by customers across all facilities with separately metered power. Customer reimbursements under leases with separately metered power vary from month-to-month based on factors such as our customers’ utilization of power and the suppliers’ pricing of power. From July 1, 2012 through June 30, 2014, customer reimbursements under leases with separately metered power constituted between 8.9% and 14.2% of annualized rent. After giving effect to abatements, free rent and other straight-line adjustments, our annualized effective rent as of June 30, 2014 was $325,483,528. Our annualized effective rent was greater than our annualized rent as of June 30, 2014 because our positive straight-line and other adjustments and amortization of deferred revenue exceeded our negative straight-line adjustments due to factors such as the timing of contractual rent escalations and customer prepayments for services.

(c) CSF represents the NRSF at an operating facility that is currently leased or readily available for lease as colocation space, where customers locate their servers and other IT equipment.

(d) Percent leased is determined based on CSF being billed to customers under signed leases as of June 30, 2014 divided by total CSF. Leases signed but not commenced as of June 2014 are not included.

(e) Utilization is calculated by dividing CSF under signed leases for colocation space (whether or not the customer has occupied the space) by total CSF.

(f) Represents the NRSF at an operating facility that is currently leased or readily available for lease as space other than CSF, which is typically office and other space.

(g) Percent leased is determined based on Office & Other space being billed to customers under signed leases as of June 30, 2014 divided by total Office & Other space. Leases signed but not commenced as of June 2014 are not included.

(h) Represents infrastructure support space, including mechanical, telecommunications and utility rooms, as well as building common areas.

(i) Represents the NRSF at an operating facility that is currently leased or readily available for lease. This excludes existing vacant space held for development.

(j) Represents space that is under roof that could be developed in the future for operating NRSF, rounded to the nearest 1,000.

(k) UPS capacity (also referred to as critical load) represents the aggregate power available for lease and exclusive use by customers from the facility’s installed universal power supplies (UPS) expressed in terms of megawatts. The capacity reported is for non-redundant megawatts, as we can develop flexible solutions to our customers at multiple resiliency levels. Does not sum to total due to rounding.

CyrusOne Inc.

NRSF Under Development

As of June 30, 2014

(Dollars in millions)

(Unaudited)

		NRSF Under Development(a)						Under Development Costs(b)
Facilities	Metropolitan Area	Colocation Space (CSF)	Office & Other	Supporting Infrastructure	Powered  Shell(c)	Total	UPS MW Capacity (d)	Actual to Date(e)		Estimated  Costs to Completion	Total
W. Frankford Road (Carrollton)	Dallas	—	21,000	2,000	—	23,000	—	$	1	$3-4	$3-4
Westover Hills Blvd. (San Antonio 2)	San Antonio	30,000	20,000	25,000	49,000	124,000	3.0	8		25-31	34-39
Westway Park Blvd. (Houston West 3)	Houston	—	—	—	320,000	320,000	—	5		18-22	23-27
South Ellis Street, Chandler, AZ (Phoenix 1)	Phoenix	—	—	—	—	—	11.0	2		9-10	10-12
South Ellis Street, Chandler, AZ (Phoenix 2)	Phoenix	60,000	8,000	18,000	19,000	105,000	6.0	2		36-44	38-46
Ridgetop Circle, Sterling, VA (Northern VA)	Loudon County	30,000	16,000	35,000	48,000	129,000	6.0	3		34-42	37-45
Metropolis Dr., Austin, TX (Austin 2)	Austin	5,000	—	—	—	5,000	—	—		1-2	1-2
Total		125,000	65,000	80,000	436,000	706,000	26.0	$	21	$126.0-155.0	$146.0-175.0

(a) Represents NRSF at a facility for which activities have commenced or are expected to commence in the next 2 quarters to prepare the space for its intended use. Estimates and timing are subject to change.

(b) Represents management’s estimate of the total costs required to complete the current NRSF under development. There may be an increase in costs if customers require greater power density.

(c) Represents NRSF under construction that, upon completion, will be powered shell available for future development into operating NRSF.

(d) UPS Capacity (also referred to as critical load) represents the aggregate power available for lease to and exclusive use by customers from the facility’s installed universal power supplies (UPS) expressed in terms of megawatts. The capacity presented is for non-redundant megawatts, as we can develop flexible solutions to our customers at multiple resiliency levels.

(e) Capex-to-date is the cash investment as of June 30, 2014. There may be accruals above this amount for work completed, for which cash has not yet been paid.

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Our portfolio is currently leased to 648 companies, many of which are leading global companies. The following table sets forth information regarding the 20 largest customers, including their affiliates, in our portfolio based on annualized rent as of June 30, 2014:

CyrusOne Inc.

Customer Diversification^(a) 

As of June 30, 2014

(Unaudited)

	Principal Customer Industry	Number of Locations	Annualized Rent(b)		Percentage of Portfolio Annualized Rent(c)		Weighted Average Remaining Lease Term in Months(d)
1	Telecommunications (CBI)(e)	7	$	21,611,833	6.9	%	20.8
2	Energy	2	21,465,172		6.9	%	29.0
3	Energy	4	14,891,031		4.8	%	6.2
4	Information Technology	3	14,747,166		4.7	%	48.2
5	Research and Consulting Services	3	13,771,429		4.4	%	23.4
6	Telecommunication Services	2	12,463,882		4.0	%	43.2
7	Information Technology	1	11,605,866		3.7	%	57.0
8	Information Technology	3	8,267,703		2.6	%	35.7
9	Financials	1	6,000,225		1.9	%	71.0
10	Telecommunication Services	5	5,173,271		1.7	%	58.0
11	Financials	1	4,983,923		1.6	%	57.0
12	Consumer Staples	1	4,838,160		1.6	%	94.3
13	Information Technology	1	4,757,012		1.5	%	18.0
14	Energy	2	4,756,800		1.5	%	25.0
15	Information Technology	1	4,565,709		1.5	%	80.0
16	Energy	1	4,460,872		1.4	%	10.9
17	Information Technology	1	4,061,705		1.3	%	13.3
18	Information Technology	2	3,962,844		1.3	%	81.8
19	Energy	3	3,879,224		1.2	%	9.6
20	Energy	1	3,637,239		1.2	%	23.3
			$	173,901,066	55.7	%	36.1

(a) Includes affiliates.

(b) Represents monthly contractual rent (defined as cash rent including customer reimbursements for metered power) under existing customer leases as of June 30, 2014, multiplied by 12. For the month of June 2014, our total annualized rent was $312.1 million, and customer reimbursements were $44.2 million annualized, consisting of reimbursements by customers across all facilities with separately metered power. Customer reimbursements under leases with separately metered power vary from month-to-month based on factors such as our customers’ utilization of power and the suppliers’ pricing of power. From July 1, 2012 through June 30, 2014, customer reimbursements under leases with separately metered power constituted between 8.9% and 14.2% of annualized rent. After giving effect to abatements, free rent and other straight-line adjustments, our annualized effective rent as of June 30, 2014 was $325,483,528. Our annualized effective rent was greater than our annualized rent as of June 30, 2014 because our positive straight-line and other adjustments and amortization of deferred revenue exceeded our negative straight-line adjustments due to factors such as the timing of contractual rent escalations and customer prepayments for services.

(c) Represents the customer’s total annualized rent divided by the total annualized rent in the portfolio as of June 30, 2014, which was approximately $312.1 million.

(d) Weighted average based on customer’s percentage of total annualized rent expiring and is as of June 30, 2014, assuming that customers exercise no renewal options and exercise all early termination rights that require payment of less than 50% of the remaining rents. Early termination rights that require payment of 50% or more of the remaining lease payments are not assumed to be exercised because such payments approximate the profitability margin of leasing that space to the customer, such that we do not consider early termination to be economically detrimental to us.

(e) Includes information for both Cincinnati Bell Technology Solutions (CBTS) and Cincinnati Bell Telephone and two customers that have contracts with CBTS. We expect the contracts for these two customers to be assigned to us, but the consents for such assignments have not yet been obtained. Excluding these customers, Cincinnati Bell Inc. and subsidiaries represented 2.3% of our annualized rent as of June 30, 2014.

54

Lease Distribution

The following table sets forth information relating to the distribution of customer leases in the properties in our portfolio, based on NRSF under lease as of June 30, 2014:

CyrusOne Inc.

Lease Distribution

As of June 30, 2014

(Unaudited)

NRSF Under Lease(a)	Number of Customers(b)	Percentage of All Customers		Total  Leased NRSF(c)	Percentage of Portfolio Leased NRSF		Annualized Rent(d)		Percentage of Annualized Rent
0-999	481	75	%	95,213	5	%	$	36,032,974	12	%
1000-2499	55	9	%	86,110	5	%	19,073,095		6	%
2500-4999	35	5	%	128,008	7	%	23,004,713		7	%
5000-9999	32	5	%	228,966	12	%	60,038,117		19	%
10000+	38	6	%	1,294,225	71	%	173,901,385		56	%
Total	641	100	%	1,832,522	100	%	$	312,050,284	100	%

(a) Represents all leases in our portfolio, including colocation, office and other leases.

(b) Represents the number of customers occupying data center, office and other space as of June 30, 2014. This may vary from total customer count as some customers may be under contract, but have yet to occupy space.

(c) Represents the total square feet at a facility under lease and that has commenced billing, excluding space held for development or space used by CyrusOne. A customer’s leased NRSF is estimated based on such customer’s direct CSF or office and light-industrial space plus management’s estimate of infrastructure support space, including mechanical, telecommunications and utility rooms, as well as building common areas.

(d) Represents monthly contractual rent (defined as cash rent including customer reimbursements for metered power) under existing customer leases as of June 30, 2014, multiplied by 12. For the month of June 2014, our total annualized rent was $312.1 million, customer reimbursements were $44.2 million annualized and consisted of reimbursements by customers across all facilities with separately metered power. Customer reimbursements under leases with separately metered power vary from month-to-month based on factors such as our customers’ utilization of power and the suppliers’ pricing of power. From July 1, 2012 through June 30, 2014, customer reimbursements under leases with separately metered power constituted between 8.9% and 14.2% of annualized rent. After giving effect to abatements, free rent and other straight-line adjustments, our annualized effective rent as of June 30, 2014 was $325,483,528. Our annualized effective rent was greater than our annualized rent as of June 30, 2014 because our positive straight-line and other adjustments and amortization of deferred revenue exceeded our negative straight-line adjustments due to factors such as the timing of contractual rent escalations and customer prepayments for services.

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Lease Expiration

The following table sets forth a summary schedule of the customer lease expirations for leases in place as of June 30, 2014 plus available space, for each of the 10 full calendar years and the partial year beginning July 1, 2014, at the properties in our portfolio. Customers whose leases have been auto-renewed prior to June 30, 2014 are shown in the calendar year in which their current auto-renewed term expires. Unless otherwise stated in the footnotes, the information set forth in the table assumes that customers exercise no renewal options and exercise all early termination rights that require payment of less than 50% of the remaining rents. Early termination rights that require payment of 50% or more of the remaining lease payments are not assumed to be exercised because such payments approximate the profitability margin of leasing that space to the customer, such that we do not consider early termination to be economically detrimental to us.

CyrusOne Inc.

Lease Expirations

As of June 30, 2014

(Unaudited)

Year(a)	Number of Leases Expiring(b)	Total Operating NRSF Expiring	Percentage of Total NRSF		Annualized Rent(c)		Percentage of Annualized Rent		Annualized Rent at Expiration(d)		Percentage of Annualized Rent at Expiration
Available		337,540	15	%
Month-to-Month	148	33,848	1	%	$	6,692,941	2	%	$	6,692,941	2	%
Remainder of 2014	668	234,112	11	%	56,030,189		18	%	56,075,363		17	%
2015	706	303,422	14	%	52,364,120		17	%	53,955,941		16	%
2016	488	251,732	12	%	58,485,756		19	%	59,024,070		18	%
2017	412	298,028	14	%	36,798,161		12	%	37,687,977		12	%
2018	177	196,088	9	%	39,064,165		12	%	44,077,538		13	%
2019	74	143,690	7	%	14,806,419		5	%	16,105,107		5	%
2020	53	135,786	6	%	11,925,624		4	%	12,876,572		4	%
2021	43	123,876	6	%	22,695,843		7	%	25,380,546		8	%
2022	5	65,516	3	%	5,385,127		2	%	7,259,081		2	%
2023 - Thereafter	43	46,423	2	%	7,801,939		2	%	9,330,662		3	%
Total	2,817	2,170,061	100	%	$	312,050,284	100	%	$	328,465,798	100	%

(a) Leases that were auto-renewed prior to June 30, 2014 are shown in the calendar year in which their current auto-renewed term expires. Unless otherwise stated in the footnotes, the information set forth in the table assumes that customers exercise no renewal options and exercise all early termination rights that require payment of less than 50% of the remaining rents. Early termination rights that require payment of 50% or more of the remaining lease payments are not assumed to be exercised.

(b) Number of leases represents each agreement with a customer. A lease agreement could include multiple spaces and a customer could have multiple leases.

(c) Represents monthly contractual rent (defined as cash rent including customer reimbursements for metered power) under existing customer leases as of June 30, 2014, multiplied by 12. For the month of June 2014, our total annualized rent was $312.1 million, customer reimbursements were $44.2 million annualized and consisted of reimbursements by customers across all facilities with separately metered power. Customer reimbursements under leases with separately metered power vary from month-to-month based on factors such as our customers’ utilization of power and the suppliers’ pricing of power. From July 1, 2012 through June 30, 2014, customer reimbursements under leases with separately metered power constituted between 8.9% and 14.2% of annualized rent. After giving effect to abatements, free rent and other straight-line adjustments, our annualized effective rent as of June 30, 2014 was $325,483,528. Our annualized effective rent was greater than our annualized rent as of June 30, 2014 because our positive straight-line and other adjustments and amortization of deferred revenue exceeded our negative straight-line adjustments due to factors such as the timing of contractual rent escalations and customer prepayments for services.

(d) Represents the final monthly contractual rent under existing customer leases that had commenced as of June 30, 2014, multiplied by 12.

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Results of Operations

Three and Six Months Ended June 30, 2014, Compared to Three Months Ended June 30, 2013 and Periods Ended June 30, 2013 and January 23, 2013:

	Successor
	Three Months Ended June 30,											Successor			Successor			Predecessor
(dollars in millions)	2014			2013			$ Change			% Change		Six Months Ended June 30, 2014			January 24, 2013 to June 30, 2013			January 1, 2013 to January 23, 2013
Revenue	$	81.7		$	63.6		$	18.1		28	%	$	159.2		$	108.6		$	15.1
Costs and expenses:
Property operating expenses	31.8			24.6			7.2			29	%	59.5			39.9			4.8
Sales and marketing	3.5			2.9			0.6			21	%	6.5			5.0			0.7
General and administrative	8.4			7.1			1.3			18	%	15.7			12.5			1.5
Transaction-related compensation	—			—			—			n/m		—			—			20.0
Depreciation and amortization	29.8			23.0			6.8			30	%	57.4			39.4			5.3
Transaction costs	0.8			0.4			0.4			100	%	0.9			0.4			0.1
Total costs and expenses	74.3			58.0			16.3			28	%	140.0			97.2			32.4
Operating income (loss)	7.4			5.6			1.8			32	%	19.2			11.4			(17.3		)
Interest expense	10.7			10.8			(0.1		)	(1	)%	21.4			19.2			2.5
Loss on extinguishment of debt	—			1.3			(1.3		)	n/m					1.3			—
Net loss before income taxes	(3.3		)	(6.5		)	3.2			(49	)%	(2.2		)	(9.1		)	(19.8		)
Income tax expense	(0.3		)	(0.3		)	—			—	%	(0.7		)	(0.5		)	(0.4		)
Net loss	(3.6		)	(6.8		)	3.2			(47	)%	(2.9		)	(9.6		)	$	(20.2	)
Noncontrolling interest in net income (loss)	(2.5		)	(4.5		)	2.0			(44	)%	(2.0		)	(6.4		)
Net loss attributed to common shareholders	$	(1.1	)	$	(2.3	)	$	1.2		(52	)%	$	(0.9	)	$	(3.2	)
Operating margin	9.1		%	8.8		%						12.1		%	10.5		%	(114.6		)%
Capital expenditures *:
Acquisitions of real estate	$	—		8.4			(8.4		)	n/m		—			$	26.6		$	—
Development of real estate	66.8			39.9			26.9			67	%	116.1			66.4			7.6
Recurring real estate	0.3			0.4			(0.1		)	(25	)%	0.7			0.6			0.1
Total	$	67.1		$	48.7		$	18.4		38	%	$	116.8		$	93.6		$	7.7
Metrics information:
Colocation square feet*	1,194,000			970,000			224,000			23	%	1,194,000			970,000			921,000
Utilization rate*	86		%	81		%	5		%	6	%	86		%	81		%	81		%
Loss per share - basic and diluted	$	(0.06	)	$	(0.12	)						$	(0.06	)	$	(0.17	)	$	—
Dividend declared per share	$	0.21		$	0.16							$	0.42		$	0.32		$	—

* See “Key Operating Metrics” set forth in our Annual Report on Form 10-K for the year ended December 31, 2013 for a definition of capital expenditures, CSF and utilization rate. 

57

Revenue

Revenue for the three months ended June 30, 2014, was $81.7 million, an increase of $18.1 million, or 28%, compared to the three months ended June 30, 2013. Revenue for the six months ended June 30, 2014, was $159.2 million, an increase of $35.5 million, or 29%, compared to the six months ended June 30, 2013. These increases for both the three and six month periods are primarily due to new customers and an increase in contractual monthly recurring revenue compared to the corresponding periods in 2013. As of June 30, 2014, we had 139 Fortune 1000 customers or private or foreign enterprises of equivalent size, compared to 122 Fortune 1000 customers or private or foreign enterprises of equivalent size as of June 30, 2013.

Our capacity at June 30, 2014, was approximately 1,194,000 CSF, which is an increase of 23% from June 30, 2013. The utilization rate of our data center facilities was 86%, as of June 30, 2014, compared to 81% as of June 30, 2013.

Recurring rent churn was 1.4% and 2.8% for the three and six months ended June 30, 2014, compared to 1.2% and 1.7% for the three and six months ended June 30, 2013.

Costs and Expenses

Property operating expenses—Property operating expenses were $31.8 million for the three months ended June 30, 2014, an increase of $7.2 million, or 29%, compared to $24.6 million for the three months ended June 30, 2013. Electricity expense increased approximately $5.1 million and interconnection expense rose $0.6 million due to a rise in demand for power and connectivity services from a growing customer base. Continued investment has grown our taxable asset base and has driven an increase in our property tax expense by approximately $1.5 million compared to the prior year. For the six months ended June 30, 2014, property operating expenses were $59.5 million, an increase of $14.8 million or 33%, compared to $44.7 million for the six months ended June 30, 2013. Consistent with the three months ended June 30, 2014, increases over the past six month period were due to more demand for power and connectivity, increased property taxes, and increases in payroll as we have commissioned approximately 23% or 224,000 colocation square feet over the past year.

Sales and marketing expenses—Sales and marketing expenses for the three months ended June 30, 2014 were $3.5 million, an increase of $0.6 million, or 21%, compared to $2.9 million for the corresponding quarter in 2013. The increase is primarily related to an increase in payroll and employee related costs of $0.4 million, along with higher advertising expenses related to marketing initiatives of $0.2 million. For the six months ended June 30, 2014, sales and marketing expenses were $6.5 million, an increase of $0.8 million or 14%, compared to $5.7 million for the six months ended June 30, 2013. Consistent with the three months ended June 30, 2013, increases over the past six months were directly related to an increase in sales and marketing personnel and higher advertising costs, both of which were used to promote growth in existing and new markets.

General and administrative expenses—General and administrative expenses for the three months ended June 30, 2014, were $8.4 million, an increase of $1.3 million, or 18%, compared to the same period in 2013. The increases in the general and administrative related costs are primarily the result of increased payroll costs of $1.4 million including the impact of the LTIP, offset by lower legal and consulting fees of $0.2 million. For the six months ended June 30, 2014, general and administrative expenses were $15.7 million, an increase of $1.7 million or 12%. Similar to the three months ended June 30, 2014, there was $2.8 million in employee related expenses which were offset by $1.0 million attributed to lower consulting fees, legal fees, and reduced third party services.

Depreciation and amortization expense—Depreciation and amortization expense for the three months ended June 30, 2014, was $29.8 million, an increase of $6.8 million, or 30%, compared to $23.0 million for the corresponding quarter in 2013. For the six months ended June 30, 2014, depreciation and amortization expense was $57.4 million, an increase of $12.7 million, or 28%. The increase was driven by assets that were placed in service since June 30, 2013. Depreciation and amortization expense is expected to increase in future periods as we acquire and develop new properties and expand our existing data center facilities.

Transaction costs—For the three months ended June 30, 2014, we incurred $0.8 million of transaction formation costs, as compared to $0.4 million for the three months ended June 30, 2013. For the six months ended June 30, 2014, we incurred $0.9 million of transaction costs which represent legal, accounting and professional fees, compared to $0.5 million of transaction costs incurred a year ago.

Transaction-related compensation—We recorded compensation expense of $20.0 million for the six months ended June 30, 2013, related to CBI’s long-term incentive plan. There were no such costs incurred in other periods and these costs represent one-time compensation charges allocated to us by CBI in the period ended January 23, 2013. On April 8, 2013, CBI reimbursed the Company for $19.6 million of these costs.

58

Operating Income

For the three months ended June 30, 2014, operating income of $7.4 million improved $1.8 million from the corresponding period in 2013, as a result of a $18.1 million increase in revenue, which was slightly offset by increases in property operating expenses of $7.2 million, depreciation and amortization of $6.8 million, and sales, general and administrative expenses of $1.3 million. For the six months ended June 30, 2014, operating income of $19.2 million improved $25.1 million from the corresponding period in 2013, as a result of a $35.5 million increase in revenue, and the impact of a $20.0 million transaction-related compensation charge from CBI in 2013, which were partially offset by increases in property operating expenses of $14.8 million, depreciation and amortization of $12.7 million, and sales, general and administrative expenses of $1.7 million.

Non-Operating Expenses

Interest expense—Interest expense for the three months ended June 30, 2014, was $10.7 million, a decrease of $0.1 million, or 1%, as compared to $10.8 million for the corresponding quarter in 2013. Interest expense for the six months ended June 30, 2014 was 21.4 million, a decrease of $0.3 million compared to the six months ended June 30, 2013. Interest expense decreased primarily as the result of lower amortization expense on the deferred financing costs on our 6 ³/8% Senior Notes due in 2022, which are amortized using the effective interest method, as compared to the amortization expense taken in 2013.

Loss on extinguishment of debt— Loss on extinguishment of debt represents the financing obligation for our Metropolis Dr. (Austin 2) facility as a result of our purchasing the property from the former lessor. A loss of $1.3 million was recognized upon the termination of this obligation for each of the three and six months ended June 30, 2013. No such costs were recognized for the three and six months ended June 30, 2014.

Income tax expense—Income tax expense was $0.3 million for the three months ended June 30, 2014 and June 30, 2013. For the six months ended June 30, 2014, income tax expense was $0.7 million, as compared to $0.9 million for the six months ended June 30, 2013.

Capital Expenditures

Capital expenditures for the three months ended June 30, 2014, were $67.1 million, as compared to $48.7 million for the three months ended June 30, 2013. Our capital expenditures for 2014 relate to the development of power and space primarily in our Phoenix, Carrollton, San Antonio, and Houston West 1 and 2 data center facilities.

Capital expenditures were $116.8 million for the six months ended June 30, 2014, as compared to $101.3 million for the six months ended June 30, 2013. Our capital expenditures for 2014 relate to the continued development of power and space through expansions of our existing properties in primarily the same locations, in order to meet increased customer demands for IT infrastructure.

Financial Condition, Liquidity and Capital Resources

Liquidity and Capital Resources

We will be required to distribute at least 90% of our REIT taxable income, determined without regard to the dividends paid deduction and excluding any net capital gains, to our stockholders on an annual basis in order to qualify as a REIT for federal income tax purposes. Accordingly, we intend to make, but are not contractually bound to make, regular quarterly distributions to common stockholders and operating partnership unit holders from cash flow from operating activities. All such distributions are at the discretion of our Board of Directors.

On November 20, 2012, CyrusOne LP issued $525 million of Senior Notes and entered into a $225 million Credit Agreement. The Senior Notes are scheduled to mature in 2022 and bear interest at a rate of 6.375% per annum. Borrowings under the Credit Agreement bear interest at a variable rate based on, at CyrusOne LP’s option, a rate equal to an applicable margin over either a base rate or a LIBOR rate. The Credit Agreement is scheduled to mature in 2017. We utilized approximately $480 million of net proceeds from our Senior Notes issuance to partially repay our notes due to related parties, which totaled $662.7 million at November 20, 2012. The notes payable remaining after such repayment were settled with an equity contribution to the operating partnership.

As part of the IPO, CyrusOne Inc. together with CyrusOne GP, purchased 21.9 million or (33.9%) of the outstanding partnership units of CyrusOne LP and CBI retained a 66.1% ownership or 42.6 million Operating Partnership units in CyrusOne LP. As of January 24, 2014, CBI has the option to exchange the partnership units of CyrusOne into cash, or shares of common stock as determined by us, on a one-for-one basis based upon the fair value of a share of our common stock. We evaluated whether we control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of these Operating Partnership units. Based on the results of this analysis, we concluded

59

that these convertible Operating Partnership units met the criteria to be classified within equity. In addition, for each share of common stock issued by us, the Operating Partnership issues an equivalent Operating Partnership unit to the Company.

To facilitate CBI's exchange of partnership units for shares, we have an effective resale registration statement on Form S-3 with the Securities Exchange Commission. As stock is issued by CyrusOne, CBI's ownership percentage will change.

On June 25, 2014, CyrusOne Inc. completed a public offering of 15,985,000 shares of its common stock, including 2,085,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares, at a price to the public of $23.25 per share or $371.7 million. CyrusOne Inc. used the proceeds of $355.9 million, net of underwriting costs of $15.8 million, to acquire 15,985,000 common units of limited partnership interests in the Operating Partnership from a subsidiary of CBI. As a result, the Company's noncontrolling interest decreased by $166.9 million and CBI's ownership decreased to 40.8% as of June 30, 2014. In addition, the Company's additional paid in capital decreased by $189 million which represents the difference between the proceeds and the noncontrolling interest redeemed by CBI.

In addition, we filed a universal shelf registration on Form S-3 with the Securities Exchange Commission that will allow us to publicly offer, from time to time, and sell debt securities, common stock, preferred stock, warrants, and rights and units. The securities will have a maximum aggregate offering price of $600 million or the equivalent thereof in foreign currencies. As of June 30, 2014, we have not used this universal shelf registration statement.

As of June 30, 2014, and December 31, 2013, we had $49.3 million and $148.8 million, respectively, of cash and cash equivalents.

Short-term Liquidity

Our short-term liquidity requirements primarily consist of operating expenses and capital expenditures composed primarily of acquisition and development costs for data center properties. For the three and six months ended June 30, 2014, our capital expenditures were $67.1 million and $116.8 million. We expect to fund future capital expenditures from the cash available on our balance sheet and availability under the Credit Agreement of $225.0 million. As of June 30, 2014, we did not have any borrowings outstanding on this facility, leaving available borrowing capacity of $225.0 million. Our capital expenditures are largely discretionary and will be applied to expand our existing data center properties, acquire or construct new facilities, or both. We intend to continue to pursue additional growth opportunities and are prepared to commit additional resources to support this growth.

Long-term Liquidity

Our long-term liquidity requirements primarily consist of distributions to stockholders and the acquisition and development of additional data center properties. We expect to meet our long-term liquidity requirements with cash flows from our operations, issuances of debt and equity securities and borrowings under our Credit Agreement.

As of June 30, 2014, our debt and other financing arrangements were $597.1 million, consisting of $525.0 million of Senior Notes due 2022, capital lease obligations of $15.0 million and other financing arrangements of $57.1 million.

Cash Flows

Comparison of Six Months Ended June 30, 2014 to Periods Ended June 30, 2013 and January 23, 2013

Cash provided by operations was $44.0 million for the six months ended June 30, 2014, an increase of $3.3 million compared to the six months ended June 30, 2013. The increase in net cash generated from operations was primarily the result of income from leasing incremental space, power, and related services compared to the six months ended June 30, 2013.

Cash used in investing activities was $116.8 million for the six months ended June 30, 2014, compared to $95.0 million for the six months ended June 30, 2013. This increase is a result of capital expenditures for development activities.

Cash used in financing activities was $27.5 million for the six months ended June 30, 2014, compared to $304.1 million provided by financing activities for the same period in 2013. The significant change is primarily attributed to net proceeds related to the issuance of common stock of $337.1 million in January of 2013. In addition, we paid $13.7 million of dividends during the six months ended June 30, 2014 partially offset by payments of $19.8 million to buyout capital leases and other financing arrangements in the six months ended June 2013.

Distribution Policy

CyrusOne Inc. is required to distribute 90% of its taxable income (excluding capital gains) on an annual basis in order to continue to qualify as a REIT for federal income tax purposes. Accordingly, we intend to make, but are not contractually bound

60

to make, regular quarterly distributions to our common shareholders from cash flow from our operating partnership’s operating activities. In addition, the Operating Partnership Agreement requires ratable distributions to partners, and therefore, similar distributions will be made to all holders of operating partnership units. All such distributions are at the discretion of our parent company’s Board of Directors. We consider market factors and our operating partnership’s performance in addition to REIT requirements in determining distribution levels. While we plan to continue to make quarterly distributions, no assurances can be made as to the frequency or amounts of any future distributions. The payment of common share distributions is dependent upon our financial condition, operating results and REIT distribution requirements and may be adjusted at the discretion of the Board of Directors during the year.

61

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

We have exposure to interest rate risk, arising from variable-rate borrowings under our Credit Agreement. On November 20, 2012, we entered into a Credit Agreement with a syndicate of financial institutions. Borrowings on the Credit Agreement bear interest, at our option, at a rate equal to an applicable margin over either a base rate or a LIBOR rate. The initial applicable margin is 2.25% for base rate loans and 3.75% for LIBOR loans. As of June 30, 2014, we had no derivative instruments to hedge these interest rate risks or borrowings outstanding on the related Credit Agreement.

The following table sets forth the carrying value and fair value amounts, maturity dates, and average interest rates at June 30, 2014, for our fixed-rate debt, excluding capital leases and other financing arrangements:

(dollars in millions)	2014		2015		2016		2017		Thereafter			Total Carrying Value			Total Fair Value
Fixed-rate debt	$	—	$	—	$	—	$	—	$	525.0		$	525.0		$	567.0
Average interest rate on fixed-rate debt	—		—		—		—		6.375		%	6.375		%	—

Refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 for a description of the Company’s market risks. There were no material changes for the period ended June 30, 2014.

62

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures (CyrusOne Inc.)

We maintain disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in our reports under the Exchange Act is processed, recorded, summarized and reported within the time periods specified in the SEC’s rules and regulations and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As of June 30, 2014, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, regarding the effectiveness of our disclosure controls and procedures. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of June 30, 2014.

Changes in Internal Control over Financial Reporting (CyrusOne Inc.)

There has been no change in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2014, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Disclosure Controls and Procedures (CyrusOne LP)

The Operating Partnership maintains disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in our reports under the Exchange Act is processed, recorded, summarized and reported within the time periods specified in the SEC’s rules and regulations and that such information is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As of June 30, 2014, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, regarding the effectiveness of our disclosure controls and procedures. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of June 30, 2014.

Changes in Internal Control over Financial Reporting (CyrusOne LP)

There has been no change in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2014, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

63

PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In the ordinary course of our business, from time to time we are subject to claims and administrative proceedings, none which are currently outstanding which we believe would have, individually or in the aggregate, a material adverse effect on our business, financial condition and results of operations, liquidity and cash flows.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors included in the section entitled “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2013, filed with the SEC on March 03, 2014, which is accessible on the SEC’s website at www.sec.gov.

ITEM 2. UNREGISTERED SALE OF EQUITY SECURITIES AND USE OF PROCEEDS

During the three months ended June 30, 2014, the Company had no unregistered sales of equity securities. The Company also had no purchases of its common stock for the quarter ended June 30, 2014.

ITEM 3. DEFAULT UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

64

ITEM 6. EXHIBITS
Exhibit No.	Exhibit Description
3.1	Articles of Amendment and Restatement of CyrusOne Inc. (Incorporated by reference to Exhibit 3.1 of Form 8-K, filed by the Registrant on January 25, 2013 (Registration No. 001-35789).)
3.2	Amended and Restated Bylaws of CyrusOne Inc. (Incorporated by reference to Exhibit 3.2 of Form 8-K, filed by the Registrant on January 25, 2013 (Registration No. 001-35789).)
3.3	Amended and Restated Agreement of Limited Partnership of CyrusOne LP. (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by the Registrant on January 25, 2013 (Registration No. 001-35789).)
31.1+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (CyrusOne Inc.)
31.2+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (CyrusOne Inc.)
31.3+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (CyrusOne LP)
31.4+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (CyrusOne LP)
32.1+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (CyrusOne Inc.)
32.2+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (CyrusOne Inc.)
32.3+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (CyrusOne LP)
32.4+	Certification pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (CyrusOne LP)
(101.INS)*	XBRL Instance Document.
(101.SCH)*	XBRL Taxonomy Extension Schema Document.
(101.CAL)*	XBRL Taxonomy Extension Calculation Linkbase Document.
(101.DEF)*	XBRL Taxonomy Extension Definition Linkbase Document.
(101.LAB)*	XBRL Taxonomy Extension Label Linkbase Document.
(101.PRE)*	XBRL Taxonomy Extension Presentation Linkbase Document.
+	Filed herewith.
*	Submitted electronically with this report.

65

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized, on the 8th day of August, 2014.

CyrusOne Inc.
By:	/s/ Gary J. Wojtaszek
	Gary J. Wojtaszek
	President, Chief Executive Officer, and Director
By:	/s/ Kimberly H. Sheehy
	Kimberly H. Sheehy
	Chief Financial and Administrative Officer
By:	/s/ Patricia M. McBratney
	Patricia M. McBratney
	Vice President and Controller (Chief Accounting Officer)

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized, on the 8th day of August, 2014.

CyrusOne LP
By: CyrusOne Inc., as sole trustee of CyrusOne GP, as sole general partner of CyrusOne LP
	/s/ Gary J. Wojtaszek
	Gary J. Wojtaszek
	President, Chief Executive Officer, and Director of CyrusOne Inc.
	/s/ Kimberly H. Sheehy
	Kimberly H. Sheehy
	Chief Financial and Administrative Officer of CyrusOne Inc.
	/s/ Patricia M. McBratney
	Patricia M. McBratney
	Vice President and Controller (Chief Accounting Officer) of CyrusOne Inc.

66

EX-31.1

Exhibit 31.1

Certifications

I, Gary J. Wojtaszek, President and Chief Executive Officer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CyrusOne Inc. (“registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2014	/s/ Gary J. Wojtaszek
	Gary J. Wojtaszek
	President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certifications

I, Kimberly H. Sheehy, Chief Financial Officer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CyrusOne Inc. (“registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2014	/s/ Kimberly H. Sheehy
	Kimberly H. Sheehy
	Chief Financial Officer

EX-31.3

Exhibit 31.3

Certifications

I, Gary J. Wojtaszek, President and Chief Executive Officer of CyrusOne Inc. in its capacity as sole trustee of CyrusOne GP, as sole general partner of CyursOne LP, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CyrusOne LP (“registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2014	/s/ Gary J. Wojtaszek
	Gary J. Wojtaszek
	President and Chief Executive Officer
	CyrusOne Inc., sole trustee of
	CyrusOne GP, sole general partner of
	CyrusOne LP

EX-31.4

Exhibit 31.4

Certifications

I, Kimberly H. Sheehy, Chief Financial Officer of CyrusOne Inc. in its capacity as sole trustee of CyrusOne GP, as sole general partner of CyursOne LP, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CyrusOne LP (“registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2014	/s/ Kimberly H. Sheehy
	Kimberly H. Sheehy
	Chief Financial Officer
	CyrusOne Inc., sole trustee of
	CyrusOne GP, sole general partner of
	CyrusOne LP

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CyrusOne Inc. (the “Company”) for the period ended June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gary J. Wojtaszek, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Gary J. Wojtaszek

Gary J. Wojtaszek

President and Chief Executive Officer

August 8, 2014

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CyrusOne Inc. (the “Company”) for the period ended June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kimberly H. Sheehy, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Kimberly H. Sheehy

Kimberly H. Sheehy

Chief Financial Officer

August 8, 2014

EX-32.3

Exhibit 32.3

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CyrusOne LP (the “Company”) for the period ended June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gary J. Wojtaszek, President and Chief Executive Officer of CyrusOne Inc. in its capacity as sole trustee of CyrusOne GP, as sole general partner of CyrusOne LP, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Gary J. Wojtaszek

Gary J. Wojtaszek

President and Chief Executive Officer

CyrusOne Inc., sole trustee of

CyrusOne GP, sole general partner of

CyrusOne LP

August 8, 2014

EX-32.4

Exhibit 32.4

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CyrusOne LP (the “Company”) for the period ended June 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kimberly H. Sheehy, Chief Financial Officer of CyrusOne Inc. in its capacity as sole trustee of CyrusOne GP, as sole general partner of CyrusOne LP, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Kimberly H. Sheehy

Kimberly H. Sheehy

Chief Financial Officer

CyrusOne Inc., sole trustee of

CyrusOne GP, sole general partner of

CyrusOne LP

August 8, 2014

XML

Shareholders' Equity (Detail) (USD $)	0 Months Ended
	May 07, 2014	May 07, 2014
Stockholders' Equity Note [Abstract]
Cash dividend payable to stockholders (in dollars per share)		$ 0.21
Distribution received (in dollars per share)	$ 0.21

XML

Investment in Real Estate (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Real Estate Properties [Line Items]
Cost of construction in progress	$ 57.3
Useful life	25 years
San Antonio 2 [Member]
Real Estate Properties [Line Items]
Area of Land	22
Acquisition of land for future data expansion	6.7
Springer Street (Lombard) [Member]
Real Estate Properties [Line Items]
Purchase price	5.5
Industrial Road (Florence) [Member]
Real Estate Properties [Line Items]
Purchase price	10.5
Metropolis Dr. (Austin 2) [Member]
Real Estate Properties [Line Items]
Extinguishment of debt	12.2
Loss on extinguishment of debt	(1.3)
Metropolis Dr. (Austin 2) [Member] | Land [Member]
Real Estate Properties [Line Items]
Purchase price	2.0
Metropolis Dr. (Austin 2) [Member] | Capital Lease Obligations [Member]
Real Estate Properties [Line Items]
Extinguishment of debt	8.9
Springer St., Lombard, IL (Lombard) [Member]
Real Estate Properties [Line Items]
Adjusted net carrying value	0.1
Industrial Rd., Florence, KY (Florence) [Member]
Real Estate Properties [Line Items]
Adjusted net carrying value	7.9
Land [Member] | Metropolis Dr., Austin, TX (Austin 3) [Member]
Real Estate Properties [Line Items]
Area of Land	22
Purchase price	7.9
Land [Member] | Ridgetop Circle, Sterling, VA (Northern VA) [Member]
Real Estate Properties [Line Items]
Area of Land	14
Purchase price	6.9
Land [Member] | Houston West [Member]
Real Estate Properties [Line Items]
Area of Land	33
Purchase price	$ 18.2

XML

Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Carrying Value and Fair Value of Other Financial Instruments

The carrying value and fair value of other financial instruments are as follows:

	June 30, 2014				December 31, 2013
(dollars in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
6 3/8% Senior Notes due 2022	$	525.0	$	567.0	$	525.0	$	539.4
Other financing arrangements	57.1		68.5		56.3		63.8

XML

Related Party Transactions - Schedule of Related Party Transactions (Details) (USD $) In Millions, except Per Share data, unless otherwise specified				3 Months Ended		6 Months Ended	3 Months Ended		6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	5 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	1 Months Ended
	May 07, 2014	Jun. 30, 2014 Cincinnati Bell Inc. [Member]	Dec. 31, 2013 Cincinnati Bell Inc. [Member]	Jun. 30, 2014 Transition services provided to CBTS (network interfaces)	Jun. 30, 2013 Transition services provided to CBTS (network interfaces)	Jun. 30, 2014 Transition services provided to CBTS (network interfaces)	Jun. 30, 2014 209 West 7th Street rent provided by CBT [Member]	Jun. 30, 2013 209 West 7th Street rent provided by CBT [Member]	Jun. 30, 2014 209 West 7th Street rent provided by CBT [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2014 Successor [Member] Data center colocation agreement provided to CBT and CBTS	Jun. 30, 2013 Successor [Member] Data center colocation agreement provided to CBT and CBTS	Jun. 30, 2013 Successor [Member] Data center colocation agreement provided to CBT and CBTS	Jun. 30, 2014 Successor [Member] Data center colocation agreement provided to CBT and CBTS	Jun. 30, 2014 Successor [Member] 229 West 7th Street lease provided to CBT	Jun. 30, 2013 Successor [Member] 229 West 7th Street lease provided to CBT	Jun. 30, 2013 Successor [Member] 229 West 7th Street lease provided to CBT	Jun. 30, 2014 Successor [Member] 229 West 7th Street lease provided to CBT	Jun. 30, 2014 Successor [Member] Goldcoast Drive lease provided to CBT [Member]	Jun. 30, 2013 Successor [Member] Goldcoast Drive lease provided to CBT [Member]	Jun. 30, 2013 Successor [Member] Goldcoast Drive lease provided to CBT [Member]	Jun. 30, 2014 Successor [Member] Goldcoast Drive lease provided to CBT [Member]	Jun. 30, 2014 Successor [Member] Transition services provided to CBTS (network interfaces)	Jun. 30, 2013 Successor [Member] Transition services provided to CBTS (network interfaces)	Jun. 30, 2013 Successor [Member] Transition services provided to CBTS (network interfaces)	Jun. 30, 2014 Successor [Member] Transition services provided to CBTS (network interfaces)	Jun. 30, 2014 Successor [Member] Data center leases provided to CBTS	Jun. 30, 2013 Successor [Member] Data center leases provided to CBTS	Jun. 30, 2013 Successor [Member] Data center leases provided to CBTS	Jun. 30, 2014 Successor [Member] Data center leases provided to CBTS	Jun. 30, 2014 Successor [Member] Connectivity charges provided by CBT	Jun. 30, 2013 Successor [Member] Connectivity charges provided by CBT	Jun. 30, 2013 Successor [Member] Connectivity charges provided by CBT	Jun. 30, 2014 Successor [Member] Connectivity charges provided by CBT	Jun. 30, 2013 Successor [Member] 209 West 7th Street rent provided by CBT [Member]	Jun. 30, 2014 Successor [Member] Allocated employee benefit plans by CBI	Jun. 30, 2013 Successor [Member] Allocated employee benefit plans by CBI	Jun. 30, 2013 Successor [Member] Allocated employee benefit plans by CBI	Jun. 30, 2014 Successor [Member] Allocated employee benefit plans by CBI	Jun. 30, 2014 Successor [Member] Allocated centralized insurance costs by CBI	Jun. 30, 2013 Successor [Member] Allocated centralized insurance costs by CBI	Jun. 30, 2013 Successor [Member] Allocated centralized insurance costs by CBI	Jun. 30, 2014 Successor [Member] Allocated centralized insurance costs by CBI	Jan. 23, 2013 Predecessor [Member]	Jan. 23, 2013 Predecessor [Member] Data center colocation agreement provided to CBT and CBTS	Jan. 23, 2013 Predecessor [Member] 229 West 7th Street lease provided to CBT	Jan. 23, 2013 Predecessor [Member] Goldcoast Drive lease provided to CBT [Member]	Jan. 23, 2013 Predecessor [Member] Transition services provided to CBTS (network interfaces)	Jan. 23, 2013 Predecessor [Member] Data center leases provided to CBTS	Jan. 23, 2013 Predecessor [Member] Connectivity charges provided by CBT	Jan. 23, 2013 Predecessor [Member] 209 West 7th Street rent provided by CBT [Member]	Jan. 23, 2013 Predecessor [Member] Allocated employee benefit plans by CBI	Jan. 23, 2013 Predecessor [Member] Allocated centralized insurance costs by CBI
Revenue:
Total revenue										$ 5.8	$ 2.4	$ 6.3	$ 11.6	$ 1.5	$ 1.0	$ 2.0	$ 3.0	$ 0.5	$ 0.1	$ 0.1	$ 1.0	$ 0.1	$ 0.1	$ 0.1	$ 0.2	$ 0.1	$ 0.5	$ 0.7	$ 0.2	$ 3.6	$ 0.7	$ 3.4	$ 7.2														$ 0.4	$ 0.3	$ 0	$ 0	$ 0.1	$ 0
Operating costs and expenses:
Total operating costs and expenses				0.3	0	0.6	0.1	0	0.1	0.6	0.5	0.7	1.2															0						0.2	0.5	0.7	0.5	0	0	0	0	0	0	0	0	0	0.4				0		0.1	0	0.2	0.1
Accounts receivable from CBI
Accounts receivable from CBI		0.5	0.6
Total amounts payable to CBI
Accounts payable		1.8	1.7
Distributions payable		5.6	6.8
Total amounts payable to CBI		$ 7.4	$ 8.5
Cash dividend payable to stockholders (in dollars per share)	$ 0.21

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Noncontrolling Interest (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	6 Months Ended		6 Months Ended		6 Months Ended			0 Months Ended			0 Months Ended
	Jan. 25, 2013	Jun. 30, 2014	Jun. 25, 2014	Jun. 30, 2014 CyrusOne Inc. and CyrusOne GP [Member]	Jan. 23, 2013 CyrusOne Inc. and CyrusOne GP [Member]	Jun. 30, 2014 Cincinnati Bell Inc. [Member]	Jun. 30, 2014 Non- controlling Interest	Jun. 30, 2014 Additional Paid In Capital	Jun. 25, 2014 IPO [Member]	Jan. 25, 2013 IPO [Member]	Jun. 25, 2014 IPO [Member]	Jun. 25, 2014 Over-Allotment Option [Member]
Noncontrolling Interest [Line Items]
Number of outstanding partnership units purchased				21,900,000
Percentage of outstanding partnership units purchased				33.90%
Percentage of retained ownership						66.10%
Number of operating partnership units owned						42,600,000
Partnership units, conversion basis into common stock (in shares)		1
Common stock issued (in shares)	400,000								15,985,000	19,000,000		2,085,000
Ownership percentage						40.80%
Amount received from initial public offering of common stock, net of underwriter's discount									$ 371.7
Proceeds from issuance of initial public offering, net									355.9	337.1
Underwriting costs									15.8
Shares purchased of operating partnership's units			15,985,000		21,900,000
Redemption of noncontrolling interest							166.9	189.0
Redemption value of noncontrolling interests based on closing price (usd per share)	$ 19.00	$ 24.90									$ 23.25
Redemption value of noncontrolling interests		$ 662.4

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Formation

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Formation

Formation

Prior to November 20, 2012, CyrusOne was not an operative legal entity or a combination of legal entities. The data center assets and operations prior to such date were owned by Cincinnati Bell Inc. (“CBI”) and, unless the context otherwise requires, its consolidated subsidiaries, which assets and operations historically have been maintained in various legal entities, some of which had significant unrelated business activities. On November 20, 2012, the Operating Partnership received a contribution of interests in real estate properties and the assumption of debt and other specified liabilities from CBI in exchange for the issuance of 123,688,687 operating partnership units to CBI.

On January 24, 2013, CyrusOne Inc. completed its initial public offering (“IPO”) of common stock, issuing approximately 19.0 million shares for $337.1 million, net of underwriters' discounts. At that time the Operating Partnership executed a 2.8 to 1.0 reverse unit split, resulting in CBI owning 44.1 million Operating Partnership units. In addition, CBI exchanged approximately 1.5 million of its Operating Partnership units for 1.5 million shares of CyrusOne Inc. common stock, and CBI was issued 0.4 million shares of CyrusOne Inc. common stock in repayment for transaction costs paid by CBI. CyrusOne Inc. also issued approximately 1.0 million shares of restricted stock to its directors and employees. In addition, on January 24, 2013, CyrusOne Inc., together with CyrusOne GP, purchased approximately 21.9 million or 33.9% of the Operating Partnership’s units for $337.1 million and through CyrusOne GP assumed the controlling interest in the Operating Partnership. CBI retained a noncontrolling interest in the Operating Partnership of 66.1%.

On June 25, 2014, CyrusOne Inc. completed a public offering of 15,985,000 shares of its common stock, including 2,085,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares, at a price to the public of $23.25 per share or $371.7 million. CyrusOne Inc. used the proceeds of $355.9 million, net of underwriting costs of $15.8 million, to acquire 15,985,000 common units of limited partnership interests in the Operating Partnership from a subsidiary of CBI.

As of June 30, 2014, the total number of outstanding partnership units was 65.3 million and CBI holds a 40.8% noncontrolling interest in the Operating Partnership. CBI effectively owns approximately 43.7% of CyrusOne through its interest in outstanding shares of common stock of CyrusOne Inc. and its interest in the Operating Partnership units of CyrusOne LP.

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Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended			6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Subsidiary	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 Minimum [Member]	Jun. 30, 2014 Maximum [Member]	Jan. 23, 2013 Cincinnati Bell Inc. [Member]	Jun. 26, 2014 Cincinnati Bell Inc. [Member] Maximum [Member]
Income Taxes [Line Items]
Percentage of taxable income						90.00%	100.00%
Number of subsidiaries as taxable REIT			2
Income tax expense	$ 0.3	$ 0.3	$ 0.7	$ 0.9
Taxes payable	1.8		1.8		1.4
Remaining combined interest held								66.10%	50.00%
Deferred tax assets, net	3.7		3.7		3.6
Valuation allowance and reserves	$ 3.7		$ 3.7		$ 3.6

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Description of Business (Detail)	Jun. 30, 2014 Center
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of data operating centers	25

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Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2014

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

Revenues and expenses for the periods presented were as follows:

	Successor		Successor		Successor		Successor		Predecessor
(dollars in millions)	Three Months Ended June 30, 2014		Three Months Ended June 30, 2013		Six Months Ended June 30, 2014		January 24, 2013 to June 30, 2013		January 1, 2013 to January 23, 2013
Revenue:
Data center colocation agreement provided to CBT and CBTS	$	1.5	$	1.0	$	3.0	$	2.0	$	0.3
229 West 7th Street lease provided to CBT	0.5		0.1		1.0		0.1		—
Goldcoast Drive/Parkway (Mason) lease	0.1		0.1		0.2		0.1		—
Transition services provided to CBTS (network interfaces)	0.1		0.5		0.2		0.7		0.1
Data center leases provided to CBTS	3.6		0.7		7.2		3.4		—
Total revenue	$	5.8	$	2.4	$	11.6	$	6.3	$	0.4
Operating costs and expenses:
Transition services agreement by CBTS	$	0.3	$	—	$	0.6	$	—	$	—
Connectivity charges provided by CBT	0.2		0.5		0.5		0.7		0.1
209 West 7th Street rent provided by CBT	0.1		—		0.1		—		—
Allocated employee benefit plans by CBI	—		—		—		—		0.2
Allocated centralized insurance costs by CBI	—		—		—		—		0.1
Total operating costs and expenses	$	0.6	$	0.5	$	1.2	$	0.7	$	0.4

As of June 30, 2014 and December 31, 2013, the amounts receivable from and payable to CBI were as follows:

	As of		As of
(dollars in millions)	June 30, 2014		December 31, 2013
Accounts receivable from CBI	$	0.5	$	0.6
Accounts payable	$	1.8	$	1.7
Distributions payable	5.6		6.8
Total amounts payable to CBI	$	7.4	$	8.5

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Guarantors (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended										3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended		1 Months Ended		1 Months Ended															0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jun. 25, 2014 Parent Company [Member]	Jan. 23, 2013 Parent Company [Member]	Jun. 30, 2014 CyrusOne LP [Member]	Jun. 30, 2014 CyrusOne GP [Member]	Jan. 23, 2013 CyrusOne GP [Member]	Jun. 30, 2014 Non-Guarantor [Member]	Jun. 30, 2014 CyrusOne L.P. [Member] LP Co-Issuer and Finance Co-Issuer [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member]	Dec. 31, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member] Parent Company [Member]	Jun. 30, 2013 Successor [Member] Parent Company [Member]	Jun. 30, 2013 Successor [Member] Parent Company [Member]	Jun. 30, 2014 Successor [Member] Parent Company [Member]	Dec. 31, 2013 Successor [Member] Parent Company [Member]	Jun. 30, 2014 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2014 Successor [Member] CyrusOne LP [Member]	Dec. 31, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2014 Successor [Member] Eliminations [Member]	Jun. 30, 2013 Successor [Member] Eliminations [Member]	Jun. 30, 2013 Successor [Member] Eliminations [Member]	Jun. 30, 2014 Successor [Member] Eliminations [Member]	Dec. 31, 2013 Successor [Member] Eliminations [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Jun. 30, 2013 Successor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Jun. 30, 2014 Successor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Dec. 31, 2013 Successor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Jun. 30, 2014 Successor [Member] General Partner [Member]	Jun. 30, 2013 Successor [Member] General Partner [Member]	Jun. 30, 2013 Successor [Member] General Partner [Member]	Jun. 30, 2014 Successor [Member] General Partner [Member]	Dec. 31, 2013 Successor [Member] General Partner [Member]	Jan. 23, 2013 Predecessor [Member]	Dec. 31, 2012 Predecessor [Member]	Jan. 23, 2013 Predecessor [Member] Parent Company [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne LP [Member]	Jan. 23, 2013 Predecessor [Member] Eliminations [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member] LP Co-Issuer [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member] Finance Co-Issuer [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member] Guarantors [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member] Non-Guarantor [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne L.P. [Member] Eliminations [Member]	Jan. 23, 2013 Predecessor [Member] General Partner [Member]	Nov. 20, 2012 6.375% Senior Notes Due 2022 [Member]	Jun. 30, 2014 6.375% Senior Notes Due 2022 [Member] CyrusOne LP [Member]	Jun. 30, 2014 6.375% Senior Notes Due 2022 [Member] LP Co-Issuer and Finance Co-Issuer [Member]	Jun. 30, 2014 6.375% Senior Notes Due 2022 [Member] Successor [Member]	Dec. 31, 2013 6.375% Senior Notes Due 2022 [Member] Successor [Member]	Jun. 25, 2014 IPO [Member]	Jan. 25, 2013 IPO [Member] Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Amount received from initial public offering of common stock, net of underwriter's discount																																																																																						$ 371.7	$ 337.1
Combined interest held on completion of transactions							59.20%	33.90%		1.00%
Ownership percentage of senior notes													100.00%																																																																					100.00%
Ownership percentage of non-guarantors/subsidiaries	100.00%			100.00%					100.00%		100.00%	100.00%
Condensed Consolidating Balance Sheets
Land	89.7			89.7		89.3								89.7			89.7	89.3	0			0	0	89.7			89.7	89.3	0			0	0	89.7			89.7	89.3	0			0	0	0			0	0	89.7			89.7	89.3	0			0	0	0			0	0	0			0	0
Buildings and improvements														791.7			791.7	783.7	0			0	0	791.7			791.7	783.7	0			0	0	791.7			791.7	783.7	0			0	0	0			0	0	746.3			746.3	739.6	45.4			45.4	44.1	0			0	0	0			0	0
Equipment	298.8			298.8		190.2								298.8			298.8	190.2	0			0	0	298.8			298.8	190.2	0			0	0	298.8			298.8	190.2	0			0	0	0			0	0	297.9			297.9	189.4	0.9			0.9	0.8	0			0	0	0			0	0
Construction in progress						57.3								59.5			59.5	57.3	0			0	0	59.5			59.5	57.3	0			0	0	59.5			59.5	57.3	0			0	0	0			0	0	59.5			59.5	57.3	0			0	0	0			0	0	0			0	0
Subtotal														1,239.7			1,239.7	1,120.5	0			0	0	1,239.7			1,239.7	1,120.5	0			0	0	1,239.7			1,239.7	1,120.5	0			0	0	0			0	0	1,193.4			1,193.4	1,075.6	46.3			46.3	44.9	0			0	0	0			0	0
Accumulated depreciation														(280.6)			(280.6)	(236.7)	0			0	0	(280.6)			(280.6)	(236.7)	0			0	0	(280.6)			(280.6)	(236.7)	0			0	0	0			0	0	(274.2)			(274.2)	(232.0)	(6.4)			(6.4)	(4.7)	0			0	0	0			0	0
Net investment in real estate														959.1			959.1	883.8	0			0	0	959.1			959.1	883.8	0			0	0	959.1			959.1	883.8	0			0	0	0			0	0	919.2			919.2	843.6	39.9			39.9	40.2	0			0	0	0			0	0
Cash and cash equivalents at end of period														49.3	267.1	267.1	49.3		0	0	0	0		49.3	267.1	267.1	49.3		0	0	0	0		49.3	267.1	267.1	49.3		0	0	0	0		0	0	0	0		44.8	265.6	265.6	44.8		4.5	1.5	1.5	4.5		0	0	0	0		0	0	0	0		12.3		0	12.3	0	12.3	0.1	0	11.2	1.0	0	0
Investment in subsidiary														0			0	0	751.0			751.0	777.6						(1,537.3)			(1,537.3)	(1,582.5)	0			0	0	773.7			773.7	795.0	0			0	0	5.1			5.1	2.1	0			0	0	(778.8)			(778.8)	(797.1)	7.5			7.5	7.8
Rent and other receivables														61.5			61.5	41.2	0			0	0	61.5			61.5	41.2	0			0	0	61.5			61.5	41.2	0			0	0	0			0	0	59.2			59.2	40.3	2.3			2.3	0.9	0			0	0	0			0	0
Intercompany receivable														0			0	0	0			0	0						(508.1)			(508.1)	(508.3)	0			0	0	508.1			508.1	508.1	0			0	0	0			0	0.2	0			0	0	(508.1)			(508.1)	(508.3)	0			0	0
Goodwill														276.2			276.2	276.2	0			0	0	276.2			276.2	276.2	0			0	0	276.2			276.2	276.2	0			0	0	0			0	0	276.2			276.2	276.2	0			0	0	0			0	0	0			0	0
Intangible assets, net														77.4			77.4	85.9	0			0	0	77.4			77.4	85.9	0			0	0	77.4			77.4	85.9	0			0	0	0			0	0	77.4			77.4	85.9	0			0	0	0			0	0	0			0	0
Due from affiliates														0.5			0.5	0.6	0			0	0	0.5			0.5	0.6	0			0	0	0.5			0.5	0.6	0			0	0	0			0	0	0.5			0.5	0.6	0			0	0	0			0	0	0			0	0
Other assets														82.1			82.1	70.3	0			0	0	82.1			82.1	70.3	0			0	0	82.1			82.1	70.3	12.4			12.4	14.1	0			0	0	66.2			66.2	53.0	3.5			3.5	3.2	0			0	0	0			0	0
Total assets														1,506.1			1,506.1	1,506.8	751.0			751.0	777.6	1,506.1			1,506.1	1,506.8	(2,045.4)			(2,045.4)	(2,090.8)	1,506.1			1,506.1	1,506.8	1,294.2			1,294.2	1,317.2	0			0	0	1,448.6			1,448.6	1,448.7	50.2			50.2	46.3	(1,286.9)			(1,286.9)	(1,305.4)	7.5			7.5	7.8
Accounts payable and accrued expenses														83.9			83.9	66.8	0			0	0	83.9			83.9	66.8	0			0	0	83.9			83.9	66.8	12.6			12.6	7.8	0			0	0	70.4			70.4	58.6	0.9			0.9	0.4	0			0	0	0			0	0
Deferred revenue														66.7			66.7	55.9	0			0	0	66.7			66.7	55.9	0			0	0	66.7			66.7	55.9	0			0	0	0			0	0	66.3			66.3	55.1	0.4			0.4	0.8	0			0	0	0			0	0
Intercompany and loan payable														0			0	0	0			0	0						(508.1)			(508.1)	(508.3)	0			0	0	0			0	0	0			0	0	508.1			508.1	508.1	0			0	0.2	(508.1)			(508.1)	(508.3)	0			0	0
Due to affiliates														7.4			7.4	8.5	0			0	0	7.4			7.4	8.5	0			0	0	7.4			7.4	8.5	5.6			5.6	6.8	0			0	0	1.8			1.8	1.7	0			0	0	0			0	0	0			0	0
Capital lease obligations														15.0			15.0	16.7	0			0	0	15.0			15.0	16.7	0			0	0	15.0			15.0	16.7	0			0	0	0			0	0	7.0			7.0	8.6	8.0			8.0	8.1	0			0	0	0			0	0
Long-term debt														525.0			525.0	525.0	0			0	0	525.0			525.0	525.0	0			0	0	525.0			525.0	525.0	525.0			525.0	525.0	0			0	0	0			0	0	0			0	0	0			0	0	0			0	0													525.0		525.0	525.0	525.0
Other financing arrangements														57.1			57.1	56.3	0			0	0	57.1			57.1	56.3	0			0	0	57.1			57.1	56.3	0			0	0	0			0	0	21.3			21.3	21.6	35.8			35.8	34.7	0			0	0	0			0	0
Total liabilities														755.1			755.1	729.2	0			0	0	755.1			755.1	729.2	(508.1)			(508.1)	(508.3)	755.1			755.1	729.2	543.2			543.2	539.6	0			0	0	674.9			674.9	653.7	45.1			45.1	44.2	(508.1)			(508.1)	(508.3)	0			0	0
Total equity														751.0	801.2	801.2	751.0	777.6	751.0			751.0	777.6	751.0			751.0	777.6	(1,537.3)			(1,537.3)	(1,582.5)	751.0			751.0	777.6	751.0			751.0	777.6	0			0	0	773.7			773.7	795.0	5.1			5.1	2.1	(778.8)			(778.8)	(797.1)	7.5			7.5	7.8		500.1
Total liabilities and parent’s net investment																		1,506.8					777.6										(2,090.8)										1,317.2					0					1,448.7					46.3										7.8
Total liabilities and equity														1,506.1			1,506.1	1,506.8	751.0			751.0		1,506.1			1,506.1	1,506.8	(2,045.4)			(2,045.4)		1,506.1			1,506.1	1,506.8	1,294.2			1,294.2	1,317.2	0			0	0	1,448.6			1,448.6	1,448.7	50.2			50.2	46.3	(1,286.9)			(1,286.9)	(1,305.4)	7.5			7.5
Condensed Consolidating Statements of Operations
Revenue														81.7	63.6	108.6	159.2		0	0	0	0		81.7	63.6	108.6	159.2		0	0	0	0		81.7	63.6	108.6	159.2		0	0	0	0		0	0	0	0		80.4	62.5	107.0	156.6		1.3	1.1	1.6	2.6		0	0	0	0		0	0	0	0		15.1		0	15.1	0		0	0	14.9	0.2		0
Costs and expenses:
Property operating expenses														31.8	24.6	39.9	59.5		0	0	0	0		31.8	24.6	39.9	59.5		0	0	0	0		31.8	24.6	39.9	59.5		0	0	0	0		0	0	0	0		31.2	23.8	38.8	58.3		0.6	0.8	1.1	1.2		0	0	0	0		0	0	0	0		4.8		0	4.8	0		0	0	4.8	0		0
Sales and marketing														3.5	2.9	5.0	6.5		0	0	0	0		3.5	2.9	5.0	6.5		0	0	0	0		3.5	2.9	5.0	6.5		0	0	0	0		0	0	0	0		3.4	2.8	4.9	6.4		0.1	0.1	0.1	0.1		0	0	0	0		0	0	0	0		0.7		0	0.7	0		0	0	0.7	0		0
General and administrative														8.4	7.1	12.5	15.7		0	0	0	0		8.4	7.1	12.5	15.7		0	0	0	0		8.4	7.1	12.5	15.7		0	0	0	0		0	0	0	0		8.4	7.1	12.5	15.6		0	0	0	0.1		0	0	0	0		0	0	0	0		1.5		0	1.5	0		0	0	1.4	0.1		0
Transaction-related compensation														0	0	0	0							0	0	0	0																																										20.0		0	20.0	0		0	0	20.0	0		0
Depreciation and amortization														29.8	23.0	39.4	57.4		0	0	0	0		29.8	23.0	39.4	57.4		0	0	0	0		29.8	23.0	39.4	57.4		0	0	0	0		0	0	0	0		29.1	22.3	38.1	55.9		0.7	0.7	1.3	1.5		0	0	0	0		0	0	0	0		5.3		0	5.3	0		0	0	5.2	0.1		0
Transaction costs														0.8	0.4	0.4	0.9		0	0	0	0		0.8	0.4	0.4	0.9		0	0	0	0		0.8	0.4	0.4	0.9		0	0	0	0		0	0	0	0		0.8	0.4	0.4	0.9		0	0	0	0		0	0	0	0		0	0	0	0		0.1		0	0.1	0		0	0	0.1	0		0
Total costs and expenses														74.3	58.0	97.2	140.0		0	0	0	0		74.3	58.0	97.2	140.0		0	0	0	0		74.3	58.0	97.2	140.0		0	0	0	0		0	0	0	0		72.9	56.4	94.7	137.1		1.4	1.6	2.5	2.9		0	0	0	0		0	0	0	0		32.4		0	32.4	0		0	0	32.2	0.2		0
Operating income (loss)														7.4	5.6	11.4	19.2		0	0	0	0		7.4	5.6	11.4	19.2		0	0	0	0		7.4	5.6	11.4	19.2		0	0	0	0		0	0	0	0		7.5	6.1	12.3	19.5		(0.1)	(0.5)	(0.9)	(0.3)		0	0	0	0		0	0	0	0		(17.3)		0	(17.3)	0		0	0	(17.3)	0		0
Interest expense														10.7	10.8	19.2	21.4		0	0	0	0		10.7	10.8	19.2	21.4		0	0	0	0		10.7	10.8	19.2	21.4		9.7	10.1	17.3	19.3		0	0	0	0		0.1	0.2	0.9	0.3		0.9	0.5	1.0	1.8		0	0	0	0		0	0	0	0		2.5		0	2.5	0		2.3	0	0.1	0.1		0
Loss on extinguishment of debt														0	1.3	1.3	0			0	0			0	1.3	1.3	0			0	0				1.3	1.3				0	0				0	0				1.3	1.3				0	0				0	0				0	0			0			0
Income (loss) before income taxes														(3.3)	(6.5)	(9.1)	(2.2)		0	0	0	0		(3.3)	(6.5)	(9.1)	(2.2)		0	0	0	0		(3.3)	(6.5)	(9.1)	(2.2)		(9.7)	(10.1)	(17.3)	(19.3)		0	0	0	0		7.4	4.6	10.1	19.2		(1.0)	(1.0)	(1.9)	(2.1)		0	0	0	0		0	0	0	0		(19.8)		0	(19.8)	0		(2.3)	0	(17.4)	(0.1)		0
Income tax expense	(0.3)	(0.3)		(0.7)	(0.9)									(0.3)	(0.3)	(0.5)	(0.7)		0	0	0	0		(0.3)	(0.3)	(0.5)	(0.7)		0	0	0	0		(0.3)	(0.3)	(0.5)	(0.7)		0	0	0	0		0	0	0	0		(0.3)	(0.3)	(0.5)	(0.7)		0	0	0	0		0	0	0	0		0	0	0	0		(0.4)		0	(0.4)	0		0	0	(0.4)	0		0
Equity earnings (loss) related to investment in subsidiaries														0	0	0	0		(3.6)	(6.8)	(9.6)	(2.9)							(1.5)	4.6	3.9	(11.4)		0	0	0	0		6.1	3.3	7.7	16.4		0	0	0	0		(1.0)	(1.0)	(1.9)	(2.1)		0	0	0	0		(5.1)	(2.3)	(5.8)	(14.3)		0	(0.1)	(0.1)	0		0		0		18.0		(17.9)	0	(0.1)	0		0
Net income (loss)														(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		(1.5)	4.6	3.9	(11.4)		(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		0	0	0	0		6.1	3.3	7.7	16.4		(1.0)	(1.0)	(1.9)	(2.1)		(5.1)	(2.3)	(5.8)	(14.3)		0	(0.1)	(0.1)	0		(20.2)		0	(20.2)	18.0	(20.2)	(20.2)	0	(17.9)	(0.1)	18.0	0
Noncontrolling interest in net loss			0											(2.5)	(4.5)	(6.4)	(2.0)		(2.5)	(4.5)	(6.4)	(2.0)							0	0	0	0							0	0	0	0		0	0	0	0		0	0	0	0		0	0	0	0							0	0	0	0
Net income (loss) attributed to common shareholders														(1.1)	(2.3)	(3.2)	(0.9)		(1.1)	(2.3)	(3.2)	(0.9)							(1.5)	4.6	3.9	(11.4)							(3.6)	(6.8)	(9.6)	(2.9)		0	0	0	0		6.1	3.3	7.7	16.4		(1.0)	(1.0)	(1.9)	(2.1)							0	(0.1)	(0.1)	0
Cash flows from operating activities:
Net income (loss)														(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		(1.5)	4.6	3.9	(11.4)		(3.6)	(6.8)	(9.6)	(2.9)		(3.6)	(6.8)	(9.6)	(2.9)		0	0	0	0		6.1	3.3	7.7	16.4		(1.0)	(1.0)	(1.9)	(2.1)		(5.1)	(2.3)	(5.8)	(14.3)		0	(0.1)	(0.1)	0		(20.2)		0	(20.2)	18.0	(20.2)	(20.2)	0	(17.9)	(0.1)	18.0	0
Equity (income) loss related to investment in subsidiaries																0	0				9.6	2.9									(3.9)	11.4				0	0				(7.7)	(16.4)				0	0				1.9	2.1				0	0				5.8	14.3				0.1	0		0		0		(18.0)	0	17.9	0	0.1	0	(18.0)	0
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities																																																																					5.9		0		0	5.9	0.2	0	5.6	0.1	0	0
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization														29.8	23.0	39.4	57.4		0	0	0	0		29.8	23.0	39.4	57.4		0	0	0	0		29.8	23.0	39.4	57.4		0	0	0	0		0	0	0	0		29.1	22.3	38.1	55.9		0.7	0.7	1.3	1.5		0	0	0	0		0	0	0	0		5.3		0	5.3	0		0	0	5.2	0.1		0
Noncash interest expense																1.0	1.8				0	0				1.0	1.8					0				1.0	1.8				2.0	1.8				0	0				(1.0)	0				0	0				0	0				0	0		0.1			0.1
Stock-based compensation expense																3.0	5.0				0	0				3.0	5.0					0				3.0	5.0				0	0				0	0				3.0	5.0				0	0				0	0				0	0		0.2			0.2
Provision for bad debt write off																0	0.6					0				0	0.6										0.6					0					0					0.6					0					0					0		0			0
Loss on extinguishment of debt														0	1.3	1.3	0			0	0			0	1.3	1.3	0			0	0				1.3	1.3				0	0				0	0				1.3	1.3				0	0				0	0				0	0			0			0
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets																10.0	(31.4)				0	0				10.0	(31.4)					0				10.0	(31.4)				0	(0.1)				0	0				10.4	(29.7)				(0.4)	(1.6)				0	0				0	0		(9.6)		0	(9.6)	0	(9.6)	0	0	(9.6)	0	0	0
Accounts payable and accrued expenses																(19.1)	2.5				0	0				(19.1)	2.5					0				(19.1)	2.5				15.2	4.8				0	0				(34.7)	(2.8)				0.4	0.5				0	0				0	0		20.5		0	20.5	0	20.5	2.1	0	18.4	0	0	0
Deferred revenues																(3.2)	10.8				0	0				(3.2)	10.8					0				(3.2)	10.8				0	0				0	0				(3.1)	11.2				(0.1)	(0.4)				0	0				0	0		3.2			3.2
Due to affiliates																16.7	0.2				0	0				16.7	0.2					0				16.7	0.2				0	0				0	0				16.7	0.2				0	0				0	0				0	0		1.5		0	1.5	0	1.5	0	0	1.5	0	0	0
Other changes in assets and liabilities																																																																					3.9		0		0	3.9	0	0	3.8	0.1	0	0
Net cash provided by (used in) operating activities																39.5	44.0				0	0				39.5	44.0				0	0				39.5	44.0				(0.1)	(12.8)				0	0				40.3	58.9				(0.7)	(2.1)				0	0				0	0		2.0		0	2.0	0	2.0	0	0	1.9	0.1	0	0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate																(26.6)	0				0					(26.6)	0				0					(26.6)					0					0					(26.6)					0					0					0			0			0
Capital expenditures – other development																(67.0)	(116.8)				0	0				(67.0)	(116.8)				0	0				(67.0)	(116.8)				0	0				0	0				(66.9)	(116.8)				(0.1)	0				0	0				0	0		(7.7)		0	(7.7)	0	(7.7)	0	0	(7.7)	0	0	0
Release of restricted cash																4.4					0					4.4	0				0					4.4					0					0					4.4					0					0					0			1.9		0	1.9	0	1.9	0	0	1.9	0	0	0
Return of investment																0	0				(337.1)	24.5									674.2	(48.5)				0	0				(337.1)	37.3				0	0				0	(13.3)				0	0				337.1	(24.0)				0	0
Intercompany advances																0	0				0	0									0	0				0	0				0	0				0	0				(0.1)	0.2				0.1	(0.2)				0	0				0	0		0		0		0	0	0.1	0	(0.1)	0	0	0
Net cash provided by (used in) investing activities																(89.2)	(116.8)				(337.1)	24.5				(89.2)	(116.8)				674.2	(48.5)				(89.2)	(116.8)				(337.1)	37.3				0	0				(89.2)	(129.9)				0	(0.2)				337.1	(24.0)				0	0		(5.8)		0	(5.8)	0	(5.8)	0.1	0	(5.9)	0	0	0
Cash flows from financing activities:
Issuance of common stock/partnership units																360.5	355.9				360.5	355.9				337.1	0				(337.1)	0				337.1					337.1	0				0	0				0	0				0	0				0					0	0		0			0
Stock issuance costs																0	(0.5)					(0.5)										0										0					0					0					0										0		0
IPO costs																(23.4)	0				(23.4)										0										0					0					0					0										0			0
Acquisition of operating partnership units																0	(355.9)					(355.9)										0										0					0					0					0										0		0
Dividends paid																(10.3)	(24.0)				0	(24.0)				(10.3)	(24.0)				0	48.0				(10.3)	(24.0)				0	(24.0)				0	0				(10.3)	(24.0)				0	0				0	24.0				0	0		0			0
Payments on capital leases and other financing arrangements																(2.5)	(2.2)				0	0				(2.5)	(2.2)				0	0				(2.5)	(2.2)				0	0				0	0				(2.0)	(1.9)				(0.5)	(0.3)				0	0				0	0		(0.6)		0	(0.6)	0	(0.6)	0	0	(0.6)	0	0	0
Payments to buyout capital leases																(9.6)	0				0					(9.6)	0				0					(9.6)					0					0					(9.6)					0					0					0			0			0
Payments to buyout other financing arrangements																(10.2)	0				0					(10.2)	0				0					(10.2)					0					0					(10.2)					0					0					0			0			0
Contributions (distributions) from parent guarantor																0	0				0	0				0	0				(337.1)	0.5				0	(0.5)				0	(0.5)				0	0				335.4	(5.1)				1.7	5.1				(337.1)	0				0	0		0.2		0	0.2	0	0.2	0	0	0.2	0	0	0
Net cash (used in) provided by financing activities																304.5	(26.7)				337.1	(24.5)				304.5	(26.7)				(674.2)	48.5				304.5	(26.7)				337.1	(24.5)				0	0				303.3	(31.0)				1.2	4.8				(337.1)	24.0				0	0		(0.4)		0	(0.4)	0	(0.4)	0	0	(0.4)	0	0	0
Net (decrease) increase in cash and cash equivalents																254.8	(99.5)				0	0				254.8	(99.5)				0	0				254.8	(99.5)				(0.1)	0				0	0				254.4	(102.0)				0.5	2.5				0	0				0	0		(4.2)		0	(4.2)	0	(4.2)	0.1	0	(4.4)	0.1	0	0
Cash and cash equivalents at beginning of period																12.3	148.8				0	0				12.3	148.8				0	0				12.3	148.8				0.1	0				0	0				11.2	146.8				1.0	2.0				0	0				0	0		16.5		0	16.5	0	16.5	0	0	15.6	0.9	0	0
Cash and cash equivalents at end of period														$ 49.3	$ 267.1	$ 267.1	$ 49.3		$ 0	$ 0	$ 0	$ 0		$ 49.3	$ 267.1	$ 267.1	$ 49.3		$ 0	$ 0	$ 0	$ 0		$ 49.3	$ 267.1	$ 267.1	$ 49.3		$ 0	$ 0	$ 0	$ 0		$ 0	$ 0	$ 0	$ 0		$ 44.8	$ 265.6	$ 265.6	$ 44.8		$ 4.5	$ 1.5	$ 1.5	$ 4.5		$ 0	$ 0	$ 0	$ 0		$ 0	$ 0	$ 0	$ 0		$ 12.3		$ 0	$ 12.3	$ 0	$ 12.3	$ 0.1	$ 0	$ 11.2	$ 1.0	$ 0	$ 0

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Formation - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended			0 Months Ended			0 Months Ended
	Jan. 25, 2013	Jun. 30, 2014	Jun. 25, 2014	Jun. 25, 2014 IPO [Member]	Jan. 25, 2013 IPO [Member]	Jun. 25, 2014 IPO [Member]	Jun. 25, 2014 Over-Allotment Option [Member]	Jan. 25, 2013 CyrusOne L.P. [Member]	Nov. 20, 2012 CyrusOne L.P. [Member]	Jun. 30, 2014 CyrusOne L.P. [Member]	Jan. 23, 2013 CyrusOne Inc. and CyrusOne GP [Member]	Jun. 30, 2014 Cincinnati Bell Inc. [Member]	Jan. 23, 2013 Cincinnati Bell Inc. [Member]	Jun. 30, 2014 Cincinnati Bell Inc. [Member] Cyrus One Inc [Member]
Business Formation [Line Items]
Partnership units issued to CyrusOne Inc.									123,688,687
Common stock issued (in shares)	400,000			15,985,000	19,000,000		2,085,000
Proceeds from issuance of initial public offering, net				$ 355.9	$ 337.1
Reverse unit split executed								2.8
Operating partnership units owned								44,100,000
Partnership units exchanged	1,500,000
Proceeds from partnership units exchanged	1,500,000
Number of common shares issued to directors and employees	1,000,000
Shares purchased of operating partnership's units			15,985,000								21,900,000
Combined interest held on completion of transactions											33.90%
Purchase of Operating partnership's units											337.1
Remaining combined interest held													66.10%
Share price (in dollars per share)	$ 19.00	$ 24.90				$ 23.25
Amount received from initial public offering of common stock, net of underwriter's discount				371.7
Underwriting costs				$ 15.8
Total number of outstanding units										65,300,000
Ownership percentage												40.80%		43.70%

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Significant Accounting Policies (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	6 Months Ended	12 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended	6 Months Ended	0 Months Ended		1 Months Ended	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jan. 25, 2013 Restricted Stock [Member]	Jun. 30, 2014 Restricted Stock [Member]	Apr. 17, 2013 Performance Shares [Member]	Jun. 30, 2014 Performance Shares [Member]	Apr. 17, 2013 Performance Shares [Member] Performance Criteria [Member]	Apr. 17, 2013 Performance Shares [Member] Market Conditions [Member]	Jan. 23, 2013 Cincinnati Bell Inc. [Member]	Jun. 30, 2014 Minimum [Member]	Jun. 30, 2014 Minimum [Member] Trademarks and Customer Relationships [Member]	Jun. 30, 2014 Maximum [Member]	Jun. 30, 2014 Maximum [Member] Trademarks and Customer Relationships [Member]	Jun. 30, 2014 Building [Member] Minimum [Member]	Jun. 30, 2014 Building [Member] Maximum [Member]	Jun. 30, 2014 Building Improvements [Member] Minimum [Member]	Jun. 30, 2014 Building Improvements [Member] Maximum [Member]	Jun. 30, 2014 Equipment [Member] Minimum [Member]	Jun. 30, 2014 Equipment [Member] Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Receivables due term										30 days		120 days
Percentage of lease term	75.00%
Percentage of lease payment	90.00%
Impairments amount recognized	$ 0
Useful life of finite-lived intangible assets											8 years		15 years
Lease term of favorable leasehold interest which being amortized	56 years
Transaction-related compensation									20,000,000
Useful life		25 years												9 years	48 years	3 years	25 years	3 years	5 years
Impairment of real estate	$ 0
Issuance of restricted shares (in shares)			1	1
Vesting period of restricted stock			3 years	3 years	3 years	3 years
Granted (in dollars per share)			$ 19.00
Award vesting rights, percentage							50.00%	50.00%

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Description of Business

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business

Description of Business

CyrusOne Inc., together with CyrusOne GP, a wholly-owned subsidiary of CyrusOne Inc., through which CyrusOne Inc. holds a controlling interest in CyrusOne LP (the “Operating Partnership”) and the subsidiaries of the Operating Partnership (collectively, “CyrusOne”, “we”, “us”, “our”, and the “Company”) is an owner, operator and developer of enterprise-class, carrier-neutral data center properties. Our customers operate in a number of industries, including energy, oil and gas, mining, medical, technology, finance and consumer goods and services. We currently operate 25 data centers located in the United States, United Kingdom and Singapore.

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Investment in Real Estate - Schedule of Gross Investment in Real Estate (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Real Estate Properties [Line Items]
Land	$ 89.7	$ 89.3
Building and Improvements	791.7	783.7
Equipment	298.8	190.2
West Seventh St., Cincinnati, OH (7th Street) [Member]
Real Estate Properties [Line Items]
Land	0.9	0.9
Building and Improvements	107.6	107.6
Equipment	12.1	11.0
Parkway Dr., Mason, OH (Mason) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	20.2	20.2
Equipment	0.6	0.6
Industrial Rd., Florence, KY (Florence) [Member]
Real Estate Properties [Line Items]
Land	2.2	2.2
Building and Improvements	41.4	41.4
Equipment	2.7	2.4
Goldcoast Dr., Cincinnati, OH (Goldcoast) [Member]
Real Estate Properties [Line Items]
Land	0.6	0.6
Building and Improvements	6.7	6.7
Equipment	0.1	0.1
Knightsbridge Dr., Hamilton, OH (Hamilton) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	49.2	49.2
Equipment	3.6	3.6
E. Monroe St., South Bend, IN (Monroe St.) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	2.5	2.5
Equipment	0.1	0
Springer St., Lombard, IL (Lombard) [Member]
Real Estate Properties [Line Items]
Land	0.7	0.7
Building and Improvements	4.6	4.6
Equipment	3.9	0.2
Crescent Circle, South Bend, IN (Blackthorn) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	3.3	3.3
Equipment	0.2	0.2
Kingsview Dr., Lebanon, OH (Lebanon) [Member]
Real Estate Properties [Line Items]
Land	4.0	4.0
Building and Improvements	76.8	71.7
Equipment	4.5	2.2
McAuley Place, Blue Ash, OH (Blue Ash) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	0.6	0.6
Equipment	0.1	0
Westway Park Blvd., Houston, TX (Houston West) [Member]
Real Estate Properties [Line Items]
Land	1.4	1.4
Building and Improvements	84.4	84.4
Equipment	42.8	39.4
Westway Park Blvd., Houston, TX (Houston West 2) [Member]
Real Estate Properties [Line Items]
Land	2.0	2.0
Building and Improvements	22.5	22.4
Equipment	43.5	15.8
Houston, TX (Houston-MetroNational) [Member]
Real Estate Properties [Line Items]
Land	18.4	18.3
Building and Improvements	0	0
Equipment	0	0
Southwest Fwy., Houston, TX (Galleria) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	68.5	68.4
Equipment	14.2	13.3
E. Ben White Blvd., Austin, TX (Austin 1) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	22.5	22.5
Equipment	1.2	1.2
S. State Highway 121 Business Lewisville, TX (Lewisville) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	77.2	77.0
Equipment	21.7	20.3
Marsh Lane Carrollton, TX [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	0.1	0.1
Equipment	0.6	0.5
Midway Rd., Carrollton, TX [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	2.0	2.0
Equipment	0.4	0.4
Frankford Carrollton, TX [Member]
Real Estate Properties [Line Items]
Land	16.1	16.1
Building and Improvements	43.2	42.6
Equipment	77.7	34.8
Bryan St., Dallas, TX [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	0.1	0.1
Equipment	0.1	0.1
North Freeway, Houston, TX (Greenspoint) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	1.3	1.3
Equipment	0.4	0.4
South Ellis Street Chandler, AZ (Phoenix 1) [Member]
Real Estate Properties [Line Items]
Land	15.0	15.0
Building and Improvements	56.1	55.7
Equipment	32.3	11.7
South Ellis Street Chandler, AZ (Phoenix 2) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	0.2	0
Equipment	0	0
Westover Hills Blvd, San Antonio, TX (San Antonio) [Member]
Real Estate Properties [Line Items]
Land	4.6	4.6
Building and Improvements	32.1	32.1
Equipment	32.7	29.5
Westover Hills Blvd San Antonio 2 [Member]
Real Estate Properties [Line Items]
Land	6.9	6.7
Building and Improvements	0	0
Equipment	0	0
Metropolis Dr., Austin, TX (Austin 2) [Member]
Real Estate Properties [Line Items]
Land	2.0	2.0
Building and Improvements	23.2	23.1
Equipment	2.5	1.7
Kestral Way (London) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	35.9	34.8
Equipment	0.7	0.7
Jurong East (Singapore) [Member]
Real Estate Properties [Line Items]
Land	0	0
Building and Improvements	9.5	9.4
Equipment	0.1	0.1
Ridgetop Circle, Sterling, VA (Northern VA) [Member]
Real Estate Properties [Line Items]
Land	7.0	6.9
Building and Improvements	0	0
Equipment	0	0
Metropolis Dr., Austin, TX (Austin 3) [Member]
Real Estate Properties [Line Items]
Land	7.9	7.9
Building and Improvements	0	0
Equipment	$ 0	$ 0

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Equity Incentive Plan (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		3 Months Ended	0 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	0 Months Ended	5 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jan. 25, 2013	Jun. 30, 2014 February 7, 2014 Grant [Member]	Jan. 25, 2013 Restricted Shares [Member]	Jun. 30, 2014 Restricted Shares [Member]	Jun. 30, 2013 Restricted Shares [Member]	Jun. 30, 2013 Restricted Shares [Member]	Jun. 30, 2014 Restricted Shares [Member]	Apr. 17, 2013 Performance Based Shares [Member]	Jun. 30, 2013 Performance Based Shares [Member]	Jun. 30, 2014 Performance Based Shares [Member]	Jun. 30, 2014 Performance Based Shares [Member] April 17, 2013 Grant [Member]	Jun. 30, 2014 Performance Based Shares [Member] April 17, 2013 Grant [Member]	Jun. 30, 2014 Performance Based Shares [Member] February 7, 2014 Grant [Member]	Jun. 30, 2014 Performance Based Shares [Member] February 7, 2014 Grant [Member]	Feb. 07, 2014 Performance Based Shares [Member] February 7, 2014 Grant [Member]	Jun. 30, 2014 2012 LTIP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)																	4
Issuance of restricted shares (in shares)				1				1
Vesting period of restricted stock				3 years				3 years	3 years		3 years
Share price (in dollars per share)	$ 24.90	$ 19.00
Compensation expense					$ 1.7	$ 1.5	$ 2.7	$ 3.1		$ 0.3		$ 0.3	$ 0.5	$ 0.9	$ 1.4
Unrecognized compensation expense					$ 9.1			$ 9.1				$ 1.2	$ 1.2			$ 5.9
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 7 months 6 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term													1 year 8 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms			2 years 7 months 6 days
Target achievement percentage												67.00%	67.00%	101.40%	101.40%

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Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Investment in real estate:
Land	$ 89.7	$ 89.3
Equipment	298.8	190.2
Construction in progress		57.3
Successor [Member]
Investment in real estate:
Land	89.7	89.3
Buildings and improvements	791.7	783.7
Equipment	298.8	190.2
Construction in progress	59.5	57.3
Subtotal	1,239.7	1,120.5
Accumulated depreciation	(280.6)	(236.7)
Net investment in real estate	959.1	883.8
Cash and cash equivalents	49.3	148.8
Rent and other receivables, net of allowance for doubtful accounts of $1.1 and $0.5 as of June 30, 2014, and December 31, 2013, respectively	61.5	41.2
Goodwill	276.2	276.2
Intangible assets, net of accumulated amortization of $63.6 and $55.1 as of June 30, 2014, and December 31, 2013, respectively	77.4	85.9
Due from affiliates	0.5	0.6
Other assets	82.1	70.3
Total assets	1,506.1	1,506.8
Liabilities and equity
Accounts payable and accrued expenses	83.9	66.8
Deferred revenue	66.7	55.9
Due to affiliates	7.4	8.5
Capital lease obligations	15.0	16.7
Long-term debt	525.0	525.0
Other financing arrangements	57.1	56.3
Total liabilities	755.1	729.2
Commitment and contingencies
Equity
Preferred stock, $.01 par value, 100,000,000 authorized; no shares issued or outstanding	0	0
Common stock, $.01 par value, 500,000,000 shares authorized and 38,658,249 and 21,991,669 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	0.4	0.2
Additional paid in capital	511.1	340.7
Accumulated deficit	(32.7)	(18.9)
Total shareholders’ equity	478.8	322.0
Noncontrolling interest	272.2	455.6
Total equity	751.0	777.6
Total liabilities and equity	1,506.1	1,506.8
Successor [Member] | CyrusOne LP [Member]
Investment in real estate:
Land	89.7	89.3
Buildings and improvements	791.7	783.7
Equipment	298.8	190.2
Construction in progress	59.5	57.3
Subtotal	1,239.7	1,120.5
Accumulated depreciation	(280.6)	(236.7)
Net investment in real estate	959.1	883.8
Cash and cash equivalents	49.3	148.8
Rent and other receivables, net of allowance for doubtful accounts of $1.1 and $0.5 as of June 30, 2014, and December 31, 2013, respectively	61.5	41.2
Goodwill	276.2	276.2
Intangible assets, net of accumulated amortization of $63.6 and $55.1 as of June 30, 2014, and December 31, 2013, respectively	77.4	85.9
Due from affiliates	0.5	0.6
Other assets	82.1	70.3
Total assets	1,506.1	1,506.8
Liabilities and equity
Accounts payable and accrued expenses	83.9	66.8
Deferred revenue	66.7	55.9
Due to affiliates	7.4	8.5
Capital lease obligations	15.0	16.7
Long-term debt	525.0	525.0
Other financing arrangements	57.1	56.3
Total liabilities	755.1	729.2
Commitment and contingencies
Equity
Total equity	751.0	777.6
Total liabilities and equity	$ 1,506.1	$ 1,506.8

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Condensed Consolidated Statement of Equity / Partnership Capital (Parenthetical) (Successor [Member], USD $)	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014
Successor [Member]
Dividends declared per share (in dollars per share)	$ 0.21	$ 0.16	$ 0.32	$ 0.42

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Debt and Other Financing Arrangements - Narrative (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Jan. 23, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Nov. 20, 2012
Debt Instrument [Line Items]
Commitment fees					0.50%
Line of Credit Facility, Commitment Fee Amount	$ 0.1	$ 0.3		$ 0.3	$ 0.6
Interest expense on capital lease obligations	0.3	1.5	1.5	3.0	3.0
Deferred financing costs		12.4			12.4
Amortization of deferred financing costs	0.1	0.9	1.7	2.3	1.8
Total unencumbered assets		150.00%			150.00%
Shareholders cash dividends in amount not to exceed					95.00%
6.375% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt							525.0
Stated interest rate		6.375%			6.375%	6.375%
Interest expense on senior notes	2.1	8.3	8.3	14.6	16.7
6.375% Senior Notes Due 2022 [Member] | Cyrus One Lp And Cyrus One Finance Corp [Member]
Debt Instrument [Line Items]
Percentage of redemption price					100.00%
Percentage of senior notes declining redemption					103.188%
Percentage of senior notes declining redemption					102.125%
Percentage of senior notes declining redemption					101.063%
Percentage of senior notes declining redemption					100.00%
Percentage of Redemption of the aggregate principal					35.00%
Percentage of equity offering on principal amount					106.375%
Percentage of Redemption of the least aggregate principal					65.00%
Number of Redemption occurs					90 days
Maximum [Member]
Debt Instrument [Line Items]
Shareholders cash dividends in an amount not to exceed					95.00%
Base Rate [Member]
Debt Instrument [Line Items]
Net leverage ratio					2.25%
Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Net leverage ratio					2.25%
Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Net leverage ratio					2.75%
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Net leverage ratio					3.25%
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Net leverage ratio					3.25%
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Net leverage ratio					3.75%
Base Rate, LIBOR [Member]
Debt Instrument [Line Items]
Net leverage ratio					1.00%
Base Rate, Federal Funds [Member]
Debt Instrument [Line Items]
Net leverage ratio					0.50%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit agreement amount							225
Outstanding borrowings on revolving credit agreement		0			0	0
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit agreement amount							50
Swing Line Loans [Member]
Debt Instrument [Line Items]
Credit agreement amount							$ 30

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Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates—Preparation of the consolidated and combined financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated and combined financial statements and accompanying notes. These estimates and assumptions are based on management’s knowledge of current events and actions that we may undertake in the future. Estimates are used in determining the fair value of leased real estate, the useful lives of real estate and other long-lived assets, future cash flows associated with goodwill and other long-lived asset impairment testing, deferred tax assets and liabilities and loss contingencies. Estimates were also utilized in the determination of historical allocations of shared employees’ payroll, benefits and incentives and management fees. Actual results may differ from these estimates and assumptions.

Investments in Real Estate

Investments in Real Estate—Investments in real estate consist of land, buildings, improvements and integral equipment utilized in our data center operations. Real estate acquired from third parties has been recorded at its acquisition cost. Real estate acquired from CBI and its affiliates has been recorded at its historical cost basis. Additions and improvements which extend an asset’s useful life or increase its functionality are capitalized and depreciated over the asset’s remaining life. Maintenance and repairs are expensed as incurred.

When we are involved in the construction of structural improvements to leased property, we are deemed the accounting owner of the leased real estate. In these instances, we bear substantially all the construction period risk, including managing or funding construction. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations. At inception, the fair value of the real estate, which generally consists of a building shell and our associated obligation is recorded as construction in progress. As construction progresses the value of the asset and obligation increases by the fair value of the structural improvements. When construction is complete, the asset is placed in service and depreciation commences. Leased real estate is depreciated to the lesser of (i) its estimated fair value at the end of the term or (ii) the expected amount of the unamortized obligation at the end of the term. The associated obligation is presented as other financing arrangements in the accompanying condensed consolidated balance sheets.

When we are not deemed the accounting owner, we further evaluate leased real estate to determine whether the lease should be classified as a capital or operating lease. One of the following four characteristics must be present to classify a lease as a capital lease: (i) the lease transfers ownership of the property to the lessee by the end of the lease term, (ii) the lease contains a bargain purchase option, (iii) the lease term is equal to 75% or more of the estimated economic life of the leased property or (iv) the net present value of the lease payments are at least 90% of the fair value of the leased property.

Construction in progress includes direct and indirect expenditures for the construction and expansion of our data centers and is stated at its acquisition cost. Independent contractors perform substantially all of the construction and expansion efforts of our data centers. Construction in progress includes costs incurred under construction contracts including project management services, engineering and schematic design services, design development, construction services and other construction-related fees and services. Interest, property taxes and certain labor costs are also capitalized during the construction of an asset.

Depreciation is calculated using the straight-line method over the estimated useful life of the asset. Useful lives range from nine to forty-eight years for buildings, three to twenty-five years for building improvements, and three to five years for equipment. Leasehold improvements are amortized over the shorter of the asset’s useful life or the remaining lease term, including renewal options which are reasonably assured.

Management reviews the carrying value of long-lived assets, including intangible assets with finite lives, when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Examples of such indicators may include a significant adverse change in the extent to which or manner in which the property is being used, an accumulation of costs significantly in excess of the amount originally expected for acquisition or development, or a history of operating or cash flow losses. When such indicators exist, we review an estimate of the undiscounted future cash flows expected to result from the use of an asset (or group of assets) and its eventual disposition and compare such amount to its carrying amount. We consider factors such as future operating income, leasing demand, competition and other factors. If our undiscounted net cash flows indicate that we are unable to recover the carrying value of the asset, an impairment loss is recognized. An impairment loss is measured as the amount by which the asset’s carrying value exceeds its estimated fair value.

Impairment exists when the Company's net book value of real estate assets is greater than the estimated fair value. No such impairments were recognized for any period presented.

Cash and Cash Equivalents

Cash and Cash Equivalents—Cash and cash equivalents include all non-restricted cash held in financial institutions and other non-restricted highly liquid short-term investments with original maturities at acquisition of three months or less.

Goodwill

Goodwill—Goodwill represents the excess of the purchase price over the fair value of net assets acquired in connection with business acquisitions. We perform impairment testing of goodwill, at the reporting unit level, on an annual basis or more frequently if indicators of potential impairment exist.

The fair value of our reporting unit was determined using a combination of market-based valuation multiples for comparable businesses and discounted cash flow analysis based on internal financial forecasts incorporating market participant assumptions. There were no impairments recognized for any of the periods presented.

Long-Lived and Intangible Assets

Long-Lived and Intangible Assets—Intangible assets represent purchased assets that lack physical substance, but can be separately distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged, either on its own or in combination with a related contract, asset, or liability. Intangible assets with finite lives consist of trademarks, customer relationships, and a favorable leasehold interest.

There were no impairments recognized for any of the periods presented.

Rent and Other Receivables

Rent and Other Receivables—Receivables consist principally of trade receivables from customers and are generally unsecured and due within 30 to 120 days. Unbilled receivables arise from services rendered but not yet billed. Expected credit losses associated with trade receivables are recorded as an allowance for uncollectible accounts. The allowance for uncollectible accounts is estimated based upon historic patterns of credit losses for aged receivables as well as specific provisions for certain identifiable, potentially uncollectible balances. When internal collection efforts on accounts have been exhausted, the accounts are written-off and the associated allowance for uncollectible accounts is reduced.

Deferred Costs

Deferred Costs—Deferred costs include both deferred leasing costs and deferred financing costs. Deferred costs are presented with other assets in the accompanying condensed consolidated and combined balance sheets. Leasing commissions incurred at the commencement of a new lease are capitalized and amortized over the term of the customer lease. Amortization of deferred leasing costs is presented with depreciation and amortization in the accompanying condensed consolidated and combined statements of operations. If a lease terminates prior to the expected term of the lease, the remaining unamortized cost is written off to amortization expense.

Deferred financing costs include costs incurred in connection with issuance of debt and the Credit Agreement (as defined below). These financing costs are capitalized and amortized over the term of the debt or Credit Agreement and are included as a component of interest expense.

Other Financing Arrangements

Other Financing Arrangements—Other financing arrangements represent leases of real estate where we are involved in the construction of structural improvements to develop buildings into data centers. When we bear substantially all the construction period risk, such as managing or funding construction, we are deemed to be the accounting owner of the leased property and, at the lease inception date, we are required to record at fair value the property and associated liability on our condensed consolidated and combined balance sheet. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations.

Revenue Recognition

Revenue Recognition—Colocation rentals are generally billed monthly in advance, and some contracts have escalating payments over the term of the contract. If rents escalate without the lessee gaining access to or control over additional leased space or power, and the lessee takes possession of, or controls the physical use of the property (including all contractually committed power) at the beginning of the lease term, the rental payments by the lessee are recognized as revenue on a straight-line basis over the term of the lease. If rents escalate because the lessee gains access to and control over additional leased space or power, revenue is recognized in proportion to the additional space or power in the years that the lessee has control over the use of the additional space or power. The excess of revenue recognized over amounts contractually due is recognized in other assets in the accompanying condensed consolidated and combined balance sheets.

Some of our leases are structured on a full-service gross basis in which the customer pays a fixed amount for both colocation rental and power. Other leases provide that the customer will be billed for power based upon actual usage which is separately metered. In both cases, this revenue is presented as revenue in the accompanying condensed consolidated and combined statements of operations. Power is generally billed one month in arrears, and an estimate of this revenue is accrued in the month that the associated costs are incurred. We generally are not entitled to reimbursements for real estate taxes, insurance or other operating expenses.

Revenue is recognized for services or products that are deemed separate units of accounting. When a customer makes an advance payment, which is not deemed a separate unit of accounting, deferred revenue is recorded. This revenue is recognized ratably over the expected term of the lease, unless the pattern of service suggests otherwise.

Certain customer leases require specified levels of service or performance. If we fail to meet these service levels, our customers may be eligible to receive credits on their contractual billings. These credits are recognized against revenue when an event occurs that gives rise to such credits.

Property Operating Expenses

Property Operating Expenses—Property operating expenses generally consist of electricity, salaries and benefits of data center operations personnel, real estate taxes, security, rent, insurance and other site operating and maintenance costs.

General and Administrative Expense

General and Administrative Expense—General and administrative expense consist of salaries and benefits of senior management and support functions, legal costs and consulting costs.

Sales and Marketing Expense

Sales and Marketing Expense—Sales and marketing expense is comprised of compensation and benefits associated with sales and marketing personnel as well as advertising and marketing costs.

Depreciation and Amortization Expense

Depreciation and Amortization Expense—Depreciation expense is recognized over the estimated useful lives of real estate applying the straight-line method. The useful life of leased real estate and leasehold improvements is the lesser of the economic useful life of the asset or the term of the lease, including optional renewal periods if renewal of the lease is reasonably assured. The residual value of leased real estate is estimated as the lesser of (i) the expected fair value of the asset at the end of the lease term or (ii) the expected amount of the unamortized liability at the end of the lease term. Estimated useful lives are periodically reviewed.

Amortization expense is recognized over the estimated useful lives of finite-lived intangibles. An accelerated method of amortization is utilized to amortize our customer relationship intangible, consistent with the benefit expected to be derived from this asset. We amortize trademarks, favorable leasehold interests, deferred leasing costs and deferred sales commissions over their estimated useful lives. The estimated useful life of trademarks and customer relationships is eight to 15 years. In addition, we have a favorable leasehold interest related to a land lease that is being amortized over the lease term of 56 years.

Transaction Costs

Transaction Costs—Transaction costs represent legal, accounting and professional fees incurred in connection with the formation transactions, our qualification as a real estate investment trust, or REIT and potential business combinations. Transaction costs are expensed as incurred.

Transaction-related Compensation

Transaction-Related Compensation —During the period ended January 23, 2013, the Company received an allocated compensation charge from CBI of $20.0 million for the settlement of its long-term incentive plan associated with the completion of the IPO. The amount was determined by CBI and allocated to CyrusOne Inc. on January 23, 2013, and reflected as expense and contributed capital in the respective period.

Income Taxes

Income Taxes—CyrusOne Inc. was included in CBI’s consolidated tax returns in various jurisdictions for the Predecessor period. In the accompanying financial statements, the Predecessor period reflects income taxes as if the Company was a separate stand-alone company. The income tax provision consists of an amount for taxes currently payable and an amount for tax consequences deferred to future periods. CyrusOne Inc. will elect to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the "Code"), by making our REIT election upon the filing of our 2013 federal income tax return. Provided we qualify for taxation as a REIT and continue to meet the various qualification tests mandated under the Code, we are generally not subject to corporate level federal income tax on the earnings distributed currently to our shareholders. If we fail to qualify as a REIT in any taxable year, our taxable income will be subject to federal income tax at regular corporate rates and any applicable alternative minimum tax.

While CyrusOne Inc. and the Operating Partnership do not pay federal income taxes, we are still subject to foreign, state and local income taxes in the locations in which we conduct business. Our taxable REIT subsidiaries (each a “TRS”) are also subject to federal and state income taxes to the extent they earn taxable income.

Deferred income taxes are recognized in certain entities. Deferred income taxes are provided for temporary differences in the bases between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred tax assets depends upon our ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction as well as various foreign, state and local jurisdictions.  The Company's previous tax filings are subject to normal reviews by regulatory agencies until the related statute of limitations expires.  With a few exceptions, the Company is no longer subject to U. S. federal, state or local examinations for years prior to 2010 and we have no liabilities for uncertain tax positions as of June 30, 2014.

Comprehensive Income (Loss)

Comprehensive Income (Loss)—Comprehensive income (loss) represents the change in net assets of a company from transactions and other events from non-owner sources. Comprehensive income (loss) comprises all components of net income and all components of other comprehensive income. As components of other comprehensive income (loss) were immaterial for all periods presented, comprehensive income (loss) is not presented.

Earnings Per Share

Earnings Per Share—For all periods subsequent to January 23, 2013, we present earnings per share (“EPS”) data. Basic EPS includes only the weighted average number of common shares outstanding during the period. Diluted EPS includes the weighted average number of common shares and the dilutive effect of stock options, restricted stock and share unit awards and convertible subordinated notes outstanding during the period, when such instruments are dilutive.

All outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends are treated as participating in undistributed earnings with common shareholders. Awards of this nature are considered participating securities and the two-class method of computing basic and diluted EPS must be applied.

Stock-Based Compensation

Stock-Based Compensation—In conjunction with the IPO, our Board of Directors adopted the 2012 Long-Term Incentive Plan (“LTIP”). The LTIP is administered by the Board of Directors, or the plan administrator. Awards issuable under the LTIP include common stock, restricted stock, stock options and other incentive awards. The awards under the LTIP include the following:

• Restricted Shares - On January 24, 2013, CyrusOne Inc. issued approximately 1 million restricted shares to its employees, officers and members of the Company's Board of Directors in conjunction with CyrusOne's IPO. These restricted shares generally vest over three years. The per share grant date price was $19.00. In addition, from time to time, new employees and Board of Directors have been issued restricted shares. These restricted shares are issued at a price equal to share price on the grant date.

• Performance and Market Based Awards - On April 17, 2013 and February 7, 2014, the Company issued performance and market based awards in the form of options and/or restricted stock to certain employees and officers of the Company. Fifty percent of the restricted shares and stock options will vest annually based upon achieving certain performance criteria. The other fifty percent of the restricted shares and stock options will vest at the end of three years if certain market conditions are met. The fair value of these awards were determined using the Black-Scholes or Monte-Carlo model which use assumptions such as volatility, risk-free interest rate, and expected term of the awards. See Note 10 for additional details relating to these awards.

• Compensation expense for these awards is recognized over the vesting periods.

Fair Value Measurements

Fair Value Measurements—Fair value measurements are utilized in accounting for business combinations and testing of goodwill and other long-lived assets for impairment and disclosures. Fair value of financial and non-financial assets and liabilities is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The three-tier hierarchy for inputs used in measuring fair value, which prioritizes the inputs used in the methodologies of measuring fair value for assets and liabilities, is as follows:

Level 1—Observable inputs for identical instruments such as quoted market prices;

Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs); and

Level 3—Unobservable inputs that reflect our determination of assumptions that market participants would use in pricing the asset or liability. These inputs are developed based on the best information available, including our own data.

Business Segments

Business Segments—Business segments are components of an enterprise for which separate financial information is available and regularly viewed by the chief operating decision maker to assess performance and allocate resources. Our chief operating decision maker, the Company's Chief Executive Officer, reviews our financial information on an aggregate basis. Furthermore, our data centers have similar economic characteristics and customers across all geographic locations, our service offerings have similar production processes, deliver services in a similar manner and use the same types of facilities and similar technologies. As a result, we have concluded that we have one reportable business segment.

Recently Issued Accounting Standards

Recently Issued Accounting Standards—In February, 2013, the Financial Accounting Standards Board ("FASB") issued amendments to provide guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The amendments are effective for fiscal years and interim periods within those years, beginning after December 15, 2013. The Company adopted this guidance in the first quarter of 2014 and has properly reflected the impact in the guarantor financial statements.

In May 2014, the FASB issued guidance that outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most of the existing revenue recognition guidance. This guidance requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures which are effective for interim and annual reporting periods in fiscal years that begin after December 15, 2016.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

In June 2014, the FASB issued a guidance update for the presentation of stock compensation.  This guidance requires an entity to treat performance targets that can be met after the requisite service period of a share based award has ended, as a performance condition that affects vesting which is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2015.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

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Fair Value of Financial Instruments - Carrying Value and Fair Value of Other Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Nov. 20, 2012
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other financing arrangements	$ 57.1	$ 56.3
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other financing arrangements	68.5	63.8
6.375% Senior Notes Due 2022 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt			525.0
Stated interest rate	6.375%	6.375%
6.375% Senior Notes Due 2022 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	525.0	525.0
6.375% Senior Notes Due 2022 [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 567.0	$ 539.4

XML

Debt and Other Financing Arrangements (Tables)

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Debt and Capital Lease Obligations

The Company’s outstanding debt and other financing arrangements consists of the following:

(dollars in millions)	June 30, 2014		December 31, 2013
Revolving credit agreement	$	—	$	—
Capital lease obligations	15.0		16.7
6 3/8% Senior Notes due 2022	525.0		525.0
Other financing arrangements	57.1		56.3
Total	$	597.1	$	598.0

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Condensed Consolidated and Combined Statements of Cash Flow (USD $) In Millions, unless otherwise specified	1 Months Ended		5 Months Ended	6 Months Ended	5 Months Ended	6 Months Ended
	Jan. 23, 2013 Predecessor [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne LP [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2014 Successor [Member] CyrusOne LP [Member]
Cash flows from operating activities:
Net income (loss)	$ (20.2)	$ (20.2)	$ (9.6)	$ (2.9)	$ (9.6)	$ (2.9)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	5.3	5.3	39.4	57.4	39.4	57.4
Noncash interest expense	0.1	0.1	1.0	1.8	1.0	1.8
Stock-based compensation expense	0.2	0.2	3.0	5.0	3.0	5.0
Provision for bad debt write off	0	0	0	0.6	0	0.6
Deferred income tax expense, including valuation allowance charge	0.3	0.3	0	0	0	0
Loss on extinguishment of debt	0	0	1.3	0	1.3	0
Rent receivables and other assets	(9.6)	(9.6)	10.0	(31.4)	10.0	(31.4)
Accounts payable and accrued expenses	20.5	20.5	(19.1)	2.5	(19.1)	2.5
Deferred revenues	3.2	3.2	(3.2)	10.8	(3.2)	10.8
Due to affiliates	1.5	1.5	16.7	0.2	16.7	0.2
Other	0.7	0.7	0	0	0	0
Net cash provided by (used in) operating activities	2.0	2.0	39.5	44.0	39.5	44.0
Cash flows from investing activities:
Capital expenditures – acquisitions of real estate	0	0	(26.6)	0	(26.6)	0
Capital expenditures – other development	(7.7)	(7.7)	(67.0)	(116.8)	(67.0)	(116.8)
Release of restricted cash	1.9	1.9	4.4		4.4	0
Net cash provided by (used in) investing activities	(5.8)	(5.8)	(89.2)	(116.8)	(89.2)	(116.8)
Cash flows from financing activities:
Issuance of common stock/partnership units	0	0	360.5	355.9	337.1	0
Stock issuance costs	0		0	(0.5)
IPO costs	0		(23.4)	0
Acquisition of operating partnership units	0		0	(355.9)
Dividends paid	0	0	(10.3)	(24.0)	(10.3)	(24.0)
Payments on capital leases and other financing arrangements	(0.6)	(0.6)	(2.5)	(2.2)	(2.5)	(2.2)
Payments to buyout capital leases	0	0	(9.6)	0	(9.6)	0
Payments to buyout other financing arrangements	0	0	(10.2)	0	(10.2)	0
Distributions to CyrusOne Inc.		0			0	(0.5)
Contributions from parent, net	0.2	0.2	0	0	0	0
Net cash (used in) provided by financing activities	(0.4)	(0.4)	304.5	(26.7)	304.5	(26.7)
Net (decrease) increase in cash and cash equivalents	(4.2)	(4.2)	254.8	(99.5)	254.8	(99.5)
Cash and cash equivalents at beginning of period	16.5	16.5	12.3	148.8	12.3	148.8
Cash and cash equivalents at end of period	12.3	12.3	267.1	49.3	267.1	49.3
Supplemental disclosures
Cash paid for interest, net of amount capitalized	0.3	0.3	19.9	20.5	19.9	20.5
Capitalized interest	0	0	1.1	0.9	1.1	0.9
Acquisition of property in accounts payable and other liabilities	15.7	15.7	29.6	45.0	29.6	45.0
Assumed liabilities in buyout of other financing obligation lease	0	0	0.2	0	0.2	0
Contribution receivable from Parent related to transaction-related compensation	19.6	19.6	0	0	0	0
Dividends / Distributions payable	0	0	10.3	13.7	10.3	13.7
Stock issuance costs	0		0	0.8
Deferred IPO costs	1.7		0	0
Deferred IPO costs reclassified to additional paid in capital	0	1.7	9.5	0	1.3	0
Distribution payable to CyrusOne Inc.		$ 0			$ 2.4	$ 0.8

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Condensed Consolidated Balance Sheets (Parenthetical) (Successor [Member], USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Allowance for doubtful accounts receivable	$ 1.1	$ 0.5
Accumulated amortization, net	63.6	55.1
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	100,000,000	100,000,000
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	500,000,000	500,000,000
Common stock issued (in shares)	38,658,249	21,991,669
Common stock outstanding (in shares)	38,658,249	21,991,669
CyrusOne LP [Member]
Allowance for doubtful accounts receivable	1.1	0.5
Accumulated amortization, net	$ 63.6	$ 55.1

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Equity Incentive Plan

6 Months Ended

Jun. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity Incentive Plan

Equity Incentive Plan

In conjunction with the IPO, our Board of Directors adopted the LTIP. The LTIP is administered by the Board of Directors, or the plan administrator. Awards issuable under the LTIP include common stock, restricted stock, stock options and other incentive awards. We have reserved a total of 4 million shares of our common stock for issuance pursuant to the LTIP, which may be adjusted for changes in our capitalization and certain corporate transactions. To the extent that an award, if forfeitable, expires, terminates or lapses, or an award is otherwise settled in cash without the delivery of shares of common stock to the participant, then any unpaid shares subject to the award will be available for future grant or issuance under the LTIP. The payment of dividend equivalents in cash in conjunction with any outstanding awards will not be counted against the shares available for issuance under the LTIP. The related stock compensation expense incurred by CyrusOne Inc. will be allocated to the Operating Partnership.

Restricted Shares

The Company issued approximately 1 million restricted shares to its employees, officers and board of directors in conjunction with the IPO. These restricted shares generally vest over three years. The per share grant date price was $19.00. These restricted shares also earn non-forfeitable dividends throughout the vesting period. In addition, from time to time, new employees and Board of Directors have been issued restricted shares. These restricted shares are issued at a price equal to the share price on the grant date.

The Company recognized stock-based compensation expense of approximately $1.7 million and $1.5 million for the three months ended June 30, 2014 and 2013, respectively, and approximately $3.1 million and $2.7 million for the six months ended June 30, 2014 and the period ended June 30, 2013, respectively. In addition, we had unrecognized compensation expense of approximately $9.1 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 1.6 years.

Performance Based Awards

On April 17, 2013, the Company approved grants of performance-based options and performance-based restricted stock under the LTIP. These awards generally vest over three years upon the achievement of certain performance-based objectives. These awards are expensed based on the grant date fair value if it is probable that the performance conditions will be achieved.

The Company recognized stock-based compensation expense related to the April 17 grant of approximately $0.3 million and $0.5 million for the three and six months ended June 30, 2014, respectively, with an expense of $0.3 million for each of the three months and the period ended June 30, 2013. In addition, we had unrecognized compensation expense of approximately $1.2 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 1.7 years.

The performance criteria are based on achieving both an EBITDA and a relative stockholder return target by the end of the three-year period. We are recording a compensation charge based on achieving 67% of both targets.

On February 7, 2014, the Company approved grants of performance-based restricted stock under the LTIP. These awards generally vest over three years upon the achievement of certain performance-based objectives. These awards are expensed based on the grant date fair value if it is probable that the performance conditions will be achieved.

The Company recognized stock-based compensation expense related to the February 7 grant of approximately $0.9 million and $1.4 million for the three and six months ended June 30, 2014, respectively, with an expense of $0.3 million for the period ended June 30, 2013. In addition, we had unrecognized compensation expense of approximately $5.9 million as of June 30, 2014. This expense will be recognized over the remaining vesting period, or approximately 2.6 years.

The performance criteria is based on achieving both an EBITDA and a relative return target by the end of the three year period. We are recording a compensation charge based on achieving 101.4% of both targets.

XML

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 01, 2014
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Trading Symbol	CONE
Entity Registrant Name	CyrusOne Inc.
Entity Central Index Key	0001553023
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		38,660,973
CyrusOne LP [Member]
Entity Information [Line Items]
Entity Registrant Name	CyrusOne LP
Entity Central Index Key	0001575810
Entity Filer Category	Non-accelerated Filer

XML

Loss per Share

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Loss per Share

Loss per Share

Basic loss per share is calculated using the weighted average number of shares of common stock outstanding during the period. In addition, net loss applicable to participating securities and the related participating securities are excluded from the computation of basic loss per share.

Diluted loss per share is calculated using the weighted average number of shares of common stock outstanding during the period, including restricted stock outstanding. If there is net income during the period, the dilutive impact of common stock equivalents outstanding would also be reflected.

The following table reflects the computation of basic and diluted net loss per share for the three and six months ended June 30, 2014 and for the three months and the period ended June 30, 2013:

	Three Months Ended						Three Months Ended						Six Months Ended						Period Ended
	June 30, 2014						June 30, 2013						June 30, 2014						June 30, 2013
(dollars in millions, except per share amount)	Basic			Diluted			Basic			Diluted			Basic			Diluted			Basic			Diluted
Numerator:
Net loss attributed to common shareholders	$	(1.1	)	$	(1.1	)	$	(2.3	)	$	(2.3	)	$	(0.9	)	$	(0.9	)	$	(3.2	)	$	(3.2	)
Less: Restricted stock dividends	(0.2		)	(0.2		)	(0.2		)	(0.2		)	(0.4		)	(0.4		)	(0.3		)	(0.3		)
Net loss available to shareholders	$	(1.3	)	$	(1.3	)	$	(2.5	)	$	(2.5	)	$	(1.3	)	$	(1.3	)	$	(3.5	)	$	(3.5	)
Denominator:
Weighted average common outstanding-basic	21.7			21.7			20.9			20.9			21.3			21.3			20.9			20.9
Performance-based restricted stock(1)(2)				—						—						—						—
Convertible securities(1)(2)				—						—						—						—
Weighted average shares outstanding-diluted				21.7						20.9						21.3						20.9
EPS:
Net loss per share-basic	$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)
Effect of dilutive shares:
Net loss per share-diluted				$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)

⁽¹⁾ We have excluded 0.8 million of restricted stock, and 42.1 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2014, as these securities were deemed anti-dilutive.

⁽²⁾ We have excluded 0.2 million of restricted stock, and 42.6 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2013, as these securities were deemed anti-dilutive.

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Condensed Consolidated and Combined Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended		3 Months Ended		5 Months Ended	6 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2014 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2013 Successor [Member] CyrusOne LP [Member]	Jun. 30, 2014 Successor [Member] CyrusOne LP [Member]	Jan. 23, 2013 Predecessor [Member]	Jan. 23, 2013 Predecessor [Member] CyrusOne LP [Member]
Revenue						$ 81.7	$ 63.6	$ 108.6	$ 159.2	$ 81.7	$ 63.6	$ 108.6	$ 159.2	$ 15.1	$ 15.1
Costs and expenses:
Property operating expenses						31.8	24.6	39.9	59.5	31.8	24.6	39.9	59.5	4.8	4.8
Sales and marketing						3.5	2.9	5.0	6.5	3.5	2.9	5.0	6.5	0.7	0.7
General and administrative						8.4	7.1	12.5	15.7	8.4	7.1	12.5	15.7	1.5	1.5
Depreciation and amortization						29.8	23.0	39.4	57.4	29.8	23.0	39.4	57.4	5.3	5.3
Transaction costs						0.8	0.4	0.4	0.9	0.8	0.4	0.4	0.9	0.1	0.1
Transaction-related compensation						0	0	0	0	0	0	0	0	20.0	20.0
Total costs and expenses						74.3	58.0	97.2	140.0	74.3	58.0	97.2	140.0	32.4	32.4
Operating income (loss)						7.4	5.6	11.4	19.2	7.4	5.6	11.4	19.2	(17.3)	(17.3)
Interest expense						10.7	10.8	19.2	21.4	10.7	10.8	19.2	21.4	2.5	2.5
Loss on extinguishment of debt						0	1.3	1.3	0	0	1.3	1.3	0	0	0
Income (loss) before income taxes						(3.3)	(6.5)	(9.1)	(2.2)	(3.3)	(6.5)	(9.1)	(2.2)	(19.8)	(19.8)
Income tax expense	(0.3)	(0.3)		(0.7)	(0.9)	(0.3)	(0.3)	(0.5)	(0.7)	(0.3)	(0.3)	(0.5)	(0.7)	(0.4)	(0.4)
Net income (loss)						(3.6)	(6.8)	(9.6)	(2.9)	(3.6)	(6.8)	(9.6)	(2.9)	(20.2)	(20.2)
Noncontrolling interest in net loss			0			(2.5)	(4.5)	(6.4)	(2.0)
Net income (loss) attributed to common shareholders						$ (1.1)	$ (2.3)	$ (3.2)	$ (0.9)
Basic weighted average common shares outstanding (in shares)						21.7	20.9	20.9	21.3
Diluted weighted average common shares outstanding (in shares)						21.7	20.9	20.9	21.3
Loss per share - basic and diluted (in dollars per share)						$ (0.06)	$ (0.12)	$ (0.17)	$ (0.06)
Dividend declared per share (in dollars per share)						$ 0.21	$ 0.16	$ 0.32	$ 0.42

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Investment in Real Estate

6 Months Ended

Jun. 30, 2014

Real Estate [Abstract]

Investment in Real Estate

Investment in Real Estate

A schedule of our gross investment in real estate follows:

	June 30, 2014						December 31, 2013
(dollars in millions)	Land		Building and Improvements		Equipment		Land		Building and Improvements		Equipment
West Seventh St., Cincinnati, OH (7th Street)	$	0.9	$	107.6	$	12.1	$	0.9	$	107.6	$	11.0
Parkway Dr., Mason, OH (Mason)	—		20.2		0.6		—		20.2		0.6
Industrial Rd., Florence, KY (Florence)	2.2		41.4		2.7		2.2		41.4		2.4
Goldcoast Dr., Cincinnati, OH (Goldcoast)	0.6		6.7		0.1		0.6		6.7		0.1
Knightsbridge Dr., Hamilton, OH (Hamilton)	—		49.2		3.6		—		49.2		3.6
E. Monroe St., South Bend, IN (Monroe St.)	—		2.5		0.1		—		2.5		—
Springer St., Lombard, IL (Lombard)	0.7		4.6		3.9		0.7		4.6		0.2
Crescent Circle, South Bend, IN (Blackthorn)	—		3.3		0.2		—		3.3		0.2
Kingsview Dr., Lebanon, OH (Lebanon)	4.0		76.8		4.5		4.0		71.7		2.2
McAuley Place, Blue Ash, OH (Blue Ash)	—		0.6		0.1		—		0.6		—
Westway Park Blvd., Houston, TX (Houston West 1)	1.4		84.4		42.8		1.4		84.4		39.4
Westway Park Blvd., Houston, TX (Houston West 2)	2.0		22.5		43.5		2.0		22.4		15.8
Westway Park Blvd., Houston, TX (Houston West 3)	18.4		—		—		18.3		—		—
Southwest Fwy., Houston, TX (Galleria)	—		68.5		14.2		—		68.4		13.3
E. Ben White Blvd., Austin, TX (Austin 1)	—		22.5		1.2		—		22.5		1.2
S. State Highway 121 Business, Lewisville, TX (Lewisville)	—		77.2		21.7		—		77.0		20.3
Marsh Lane, Carrollton, TX (Marsh Ln)	—		0.1		0.6		—		0.1		0.5
Midway Rd., Carrollton, TX (Midway)	—		2.0		0.4		—		2.0		0.4
W. Frankford Rd., Carrollton, TX (Carrollton)	16.1		43.2		77.7		16.1		42.6		34.8
Bryan St., Dallas, TX (Bryan St)	—		0.1		0.1		—		0.1		0.1
North Freeway, Houston, TX (Greenspoint)	—		1.3		0.4		—		1.3		0.4
South Ellis Street, Chandler, AZ (Phoenix 1)	15.0		56.1		32.3		15.0		55.7		11.7
South Ellis Street, Chandler, AZ (Phoenix 2)	—		0.2		—		—		—		—
Westover Hills Blvd., San Antonio, TX (San Antonio 1)	4.6		32.1		32.7		4.6		32.1		29.5
Westover Hills Blvd., San Antonio, TX (San Antonio 2)	6.9		—		—		6.7		—		—
Metropolis Dr., Austin, TX (Austin 2)	2.0		23.2		2.5		2.0		23.1		1.7
Kestral Way (London)	—		35.9		0.7		—		34.8		0.7
Jurong East (Singapore)	—		9.5		0.1		—		9.4		0.1
Ridgetop Circle, Sterling, VA (Loudon County)	7.0		—		—		6.9		—		—
Metropolis Dr., Austin, TX (Austin 3)	7.9		—		—		7.9		—		—
Total	$	89.7	$	791.7	$	298.8	$	89.3	$	783.7	$	190.2

Construction in progress was $59.5 million and $57.3 million as of June 30, 2014 and December 31, 2013, respectively. We continue to have high amounts of construction in progress as we continue to build data center facilities.

During 2014, we are continuing to invest in development of real estate property. Our development has included the completion of additional square footage and power in our Phoenix 1, Phoenix 2, Carrollton, and Houston West 2 data centers.

In 2013, we made various land acquisitions. We purchased 33 acres of land in Houston (Houston West 3) for $18.2 million, 22 acres of land for $6.7 million in San Antonio (San Antonio 2), 22 acres of land for $7.9 million in Austin (Austin Met 3), and 14 acres of land for $6.9 million in Virginia (Northern VA).

Also in 2013, we executed our lease buyout options and purchased the Springer Street, Lombard, IL (Lombard) and Industrial Road, Florence, KY (Florence) data center facilities for a total purchase price of $5.5 million and $10.5 million, respectively, and extinguished our Metropolis Drive, Austin, TX (Austin 2) data center facility related financing lease obligation for $12.2 million.

Upon completion of the buyout of the Lombard and Florence capital leases, the gross basis of the acquired assets were reset to the net carrying value of the leased assets and the depreciable life was extended to 25 years consistent with our policy for depreciating buildings. The amount of these adjustments for Lombard and Florence were $0.1 million and $7.9 million, respectively.

The extinguishment resulted in the settlement of the related financing lease obligation for Austin 2 of $8.9 million, acquisition of land of $2.0 million and a loss on extinguishment of debt of $1.3 million.

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Significant Accounting Policies

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Significant Accounting Policies

Significant Accounting Policies

Use of Estimates—Preparation of the consolidated and combined financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated and combined financial statements and accompanying notes. These estimates and assumptions are based on management’s knowledge of current events and actions that we may undertake in the future. Estimates are used in determining the fair value of leased real estate, the useful lives of real estate and other long-lived assets, future cash flows associated with goodwill and other long-lived asset impairment testing, deferred tax assets and liabilities and loss contingencies. Estimates were also utilized in the determination of historical allocations of shared employees’ payroll, benefits and incentives and management fees. Actual results may differ from these estimates and assumptions.

Investments in Real Estate—Investments in real estate consist of land, buildings, improvements and integral equipment utilized in our data center operations. Real estate acquired from third parties has been recorded at its acquisition cost. Real estate acquired from CBI and its affiliates has been recorded at its historical cost basis. Additions and improvements which extend an asset’s useful life or increase its functionality are capitalized and depreciated over the asset’s remaining life. Maintenance and repairs are expensed as incurred.

When we are involved in the construction of structural improvements to leased property, we are deemed the accounting owner of the leased real estate. In these instances, we bear substantially all the construction period risk, including managing or funding construction. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations. At inception, the fair value of the real estate, which generally consists of a building shell and our associated obligation is recorded as construction in progress. As construction progresses the value of the asset and obligation increases by the fair value of the structural improvements. When construction is complete, the asset is placed in service and depreciation commences. Leased real estate is depreciated to the lesser of (i) its estimated fair value at the end of the term or (ii) the expected amount of the unamortized obligation at the end of the term. The associated obligation is presented as other financing arrangements in the accompanying condensed consolidated balance sheets.

When we are not deemed the accounting owner, we further evaluate leased real estate to determine whether the lease should be classified as a capital or operating lease. One of the following four characteristics must be present to classify a lease as a capital lease: (i) the lease transfers ownership of the property to the lessee by the end of the lease term, (ii) the lease contains a bargain purchase option, (iii) the lease term is equal to 75% or more of the estimated economic life of the leased property or (iv) the net present value of the lease payments are at least 90% of the fair value of the leased property.

Construction in progress includes direct and indirect expenditures for the construction and expansion of our data centers and is stated at its acquisition cost. Independent contractors perform substantially all of the construction and expansion efforts of our data centers. Construction in progress includes costs incurred under construction contracts including project management services, engineering and schematic design services, design development, construction services and other construction-related fees and services. Interest, property taxes and certain labor costs are also capitalized during the construction of an asset.

Depreciation is calculated using the straight-line method over the estimated useful life of the asset. Useful lives range from nine to forty-eight years for buildings, three to twenty-five years for building improvements, and three to five years for equipment. Leasehold improvements are amortized over the shorter of the asset’s useful life or the remaining lease term, including renewal options which are reasonably assured.

Management reviews the carrying value of long-lived assets, including intangible assets with finite lives, when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Examples of such indicators may include a significant adverse change in the extent to which or manner in which the property is being used, an accumulation of costs significantly in excess of the amount originally expected for acquisition or development, or a history of operating or cash flow losses. When such indicators exist, we review an estimate of the undiscounted future cash flows expected to result from the use of an asset (or group of assets) and its eventual disposition and compare such amount to its carrying amount. We consider factors such as future operating income, leasing demand, competition and other factors. If our undiscounted net cash flows indicate that we are unable to recover the carrying value of the asset, an impairment loss is recognized. An impairment loss is measured as the amount by which the asset’s carrying value exceeds its estimated fair value.

Impairment exists when the Company's net book value of real estate assets is greater than the estimated fair value. No such impairments were recognized for any period presented.

Cash and Cash Equivalents—Cash and cash equivalents include all non-restricted cash held in financial institutions and other non-restricted highly liquid short-term investments with original maturities at acquisition of three months or less.

Goodwill—Goodwill represents the excess of the purchase price over the fair value of net assets acquired in connection with business acquisitions. We perform impairment testing of goodwill, at the reporting unit level, on an annual basis or more frequently if indicators of potential impairment exist.

The fair value of our reporting unit was determined using a combination of market-based valuation multiples for comparable businesses and discounted cash flow analysis based on internal financial forecasts incorporating market participant assumptions. There were no impairments recognized for any of the periods presented.

Long-Lived and Intangible Assets—Intangible assets represent purchased assets that lack physical substance, but can be separately distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged, either on its own or in combination with a related contract, asset, or liability. Intangible assets with finite lives consist of trademarks, customer relationships, and a favorable leasehold interest.

There were no impairments recognized for any of the periods presented.

Rent and Other Receivables—Receivables consist principally of trade receivables from customers and are generally unsecured and due within 30 to 120 days. Unbilled receivables arise from services rendered but not yet billed. Expected credit losses associated with trade receivables are recorded as an allowance for uncollectible accounts. The allowance for uncollectible accounts is estimated based upon historic patterns of credit losses for aged receivables as well as specific provisions for certain identifiable, potentially uncollectible balances. When internal collection efforts on accounts have been exhausted, the accounts are written-off and the associated allowance for uncollectible accounts is reduced.

Deferred Costs—Deferred costs include both deferred leasing costs and deferred financing costs. Deferred costs are presented with other assets in the accompanying condensed consolidated and combined balance sheets. Leasing commissions incurred at the commencement of a new lease are capitalized and amortized over the term of the customer lease. Amortization of deferred leasing costs is presented with depreciation and amortization in the accompanying condensed consolidated and combined statements of operations. If a lease terminates prior to the expected term of the lease, the remaining unamortized cost is written off to amortization expense.

Deferred financing costs include costs incurred in connection with issuance of debt and the Credit Agreement (as defined below). These financing costs are capitalized and amortized over the term of the debt or Credit Agreement and are included as a component of interest expense.

Other Financing Arrangements—Other financing arrangements represent leases of real estate where we are involved in the construction of structural improvements to develop buildings into data centers. When we bear substantially all the construction period risk, such as managing or funding construction, we are deemed to be the accounting owner of the leased property and, at the lease inception date, we are required to record at fair value the property and associated liability on our condensed consolidated and combined balance sheet. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations.

Revenue Recognition—Colocation rentals are generally billed monthly in advance, and some contracts have escalating payments over the term of the contract. If rents escalate without the lessee gaining access to or control over additional leased space or power, and the lessee takes possession of, or controls the physical use of the property (including all contractually committed power) at the beginning of the lease term, the rental payments by the lessee are recognized as revenue on a straight-line basis over the term of the lease. If rents escalate because the lessee gains access to and control over additional leased space or power, revenue is recognized in proportion to the additional space or power in the years that the lessee has control over the use of the additional space or power. The excess of revenue recognized over amounts contractually due is recognized in other assets in the accompanying condensed consolidated and combined balance sheets.

Some of our leases are structured on a full-service gross basis in which the customer pays a fixed amount for both colocation rental and power. Other leases provide that the customer will be billed for power based upon actual usage which is separately metered. In both cases, this revenue is presented as revenue in the accompanying condensed consolidated and combined statements of operations. Power is generally billed one month in arrears, and an estimate of this revenue is accrued in the month that the associated costs are incurred. We generally are not entitled to reimbursements for real estate taxes, insurance or other operating expenses.

Revenue is recognized for services or products that are deemed separate units of accounting. When a customer makes an advance payment, which is not deemed a separate unit of accounting, deferred revenue is recorded. This revenue is recognized ratably over the expected term of the lease, unless the pattern of service suggests otherwise.

Certain customer leases require specified levels of service or performance. If we fail to meet these service levels, our customers may be eligible to receive credits on their contractual billings. These credits are recognized against revenue when an event occurs that gives rise to such credits.

Property Operating Expenses—Property operating expenses generally consist of electricity, salaries and benefits of data center operations personnel, real estate taxes, security, rent, insurance and other site operating and maintenance costs.

General and Administrative Expense—General and administrative expense consist of salaries and benefits of senior management and support functions, legal costs and consulting costs.

Sales and Marketing Expense—Sales and marketing expense is comprised of compensation and benefits associated with sales and marketing personnel as well as advertising and marketing costs.

Depreciation and Amortization Expense—Depreciation expense is recognized over the estimated useful lives of real estate applying the straight-line method. The useful life of leased real estate and leasehold improvements is the lesser of the economic useful life of the asset or the term of the lease, including optional renewal periods if renewal of the lease is reasonably assured. The residual value of leased real estate is estimated as the lesser of (i) the expected fair value of the asset at the end of the lease term or (ii) the expected amount of the unamortized liability at the end of the lease term. Estimated useful lives are periodically reviewed.

Amortization expense is recognized over the estimated useful lives of finite-lived intangibles. An accelerated method of amortization is utilized to amortize our customer relationship intangible, consistent with the benefit expected to be derived from this asset. We amortize trademarks, favorable leasehold interests, deferred leasing costs and deferred sales commissions over their estimated useful lives. The estimated useful life of trademarks and customer relationships is eight to 15 years. In addition, we have a favorable leasehold interest related to a land lease that is being amortized over the lease term of 56 years.

Transaction Costs—Transaction costs represent legal, accounting and professional fees incurred in connection with the formation transactions, our qualification as a real estate investment trust, or REIT and potential business combinations. Transaction costs are expensed as incurred.

Transaction-Related Compensation —During the period ended January 23, 2013, the Company received an allocated compensation charge from CBI of $20.0 million for the settlement of its long-term incentive plan associated with the completion of the IPO. The amount was determined by CBI and allocated to CyrusOne Inc. on January 23, 2013, and reflected as expense and contributed capital in the respective period.

Income Taxes—CyrusOne Inc. was included in CBI’s consolidated tax returns in various jurisdictions for the Predecessor period. In the accompanying financial statements, the Predecessor period reflects income taxes as if the Company was a separate stand-alone company. The income tax provision consists of an amount for taxes currently payable and an amount for tax consequences deferred to future periods. CyrusOne Inc. will elect to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the "Code"), by making our REIT election upon the filing of our 2013 federal income tax return. Provided we qualify for taxation as a REIT and continue to meet the various qualification tests mandated under the Code, we are generally not subject to corporate level federal income tax on the earnings distributed currently to our shareholders. If we fail to qualify as a REIT in any taxable year, our taxable income will be subject to federal income tax at regular corporate rates and any applicable alternative minimum tax.

While CyrusOne Inc. and the Operating Partnership do not pay federal income taxes, we are still subject to foreign, state and local income taxes in the locations in which we conduct business. Our taxable REIT subsidiaries (each a “TRS”) are also subject to federal and state income taxes to the extent they earn taxable income.

Deferred income taxes are recognized in certain entities. Deferred income taxes are provided for temporary differences in the bases between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred tax assets depends upon our ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction as well as various foreign, state and local jurisdictions.  The Company's previous tax filings are subject to normal reviews by regulatory agencies until the related statute of limitations expires.  With a few exceptions, the Company is no longer subject to U. S. federal, state or local examinations for years prior to 2010 and we have no liabilities for uncertain tax positions as of June 30, 2014.

Comprehensive Income (Loss)—Comprehensive income (loss) represents the change in net assets of a company from transactions and other events from non-owner sources. Comprehensive income (loss) comprises all components of net income and all components of other comprehensive income. As components of other comprehensive income (loss) were immaterial for all periods presented, comprehensive income (loss) is not presented.

Earnings Per Share—For all periods subsequent to January 23, 2013, we present earnings per share (“EPS”) data. Basic EPS includes only the weighted average number of common shares outstanding during the period. Diluted EPS includes the weighted average number of common shares and the dilutive effect of stock options, restricted stock and share unit awards and convertible subordinated notes outstanding during the period, when such instruments are dilutive.

All outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends are treated as participating in undistributed earnings with common shareholders. Awards of this nature are considered participating securities and the two-class method of computing basic and diluted EPS must be applied.

Stock-Based Compensation—In conjunction with the IPO, our Board of Directors adopted the 2012 Long-Term Incentive Plan (“LTIP”). The LTIP is administered by the Board of Directors, or the plan administrator. Awards issuable under the LTIP include common stock, restricted stock, stock options and other incentive awards. The awards under the LTIP include the following:

• Restricted Shares - On January 24, 2013, CyrusOne Inc. issued approximately 1 million restricted shares to its employees, officers and members of the Company's Board of Directors in conjunction with CyrusOne's IPO. These restricted shares generally vest over three years. The per share grant date price was $19.00. In addition, from time to time, new employees and Board of Directors have been issued restricted shares. These restricted shares are issued at a price equal to share price on the grant date.

• Performance and Market Based Awards - On April 17, 2013 and February 7, 2014, the Company issued performance and market based awards in the form of options and/or restricted stock to certain employees and officers of the Company. Fifty percent of the restricted shares and stock options will vest annually based upon achieving certain performance criteria. The other fifty percent of the restricted shares and stock options will vest at the end of three years if certain market conditions are met. The fair value of these awards were determined using the Black-Scholes or Monte-Carlo model which use assumptions such as volatility, risk-free interest rate, and expected term of the awards. See Note 10 for additional details relating to these awards.

• Compensation expense for these awards is recognized over the vesting periods.

Fair Value Measurements—Fair value measurements are utilized in accounting for business combinations and testing of goodwill and other long-lived assets for impairment and disclosures. Fair value of financial and non-financial assets and liabilities is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The three-tier hierarchy for inputs used in measuring fair value, which prioritizes the inputs used in the methodologies of measuring fair value for assets and liabilities, is as follows:

Level 1—Observable inputs for identical instruments such as quoted market prices;

Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs); and

Level 3—Unobservable inputs that reflect our determination of assumptions that market participants would use in pricing the asset or liability. These inputs are developed based on the best information available, including our own data.

Business Segments—Business segments are components of an enterprise for which separate financial information is available and regularly viewed by the chief operating decision maker to assess performance and allocate resources. Our chief operating decision maker, the Company's Chief Executive Officer, reviews our financial information on an aggregate basis. Furthermore, our data centers have similar economic characteristics and customers across all geographic locations, our service offerings have similar production processes, deliver services in a similar manner and use the same types of facilities and similar technologies. As a result, we have concluded that we have one reportable business segment.

Recently Issued Accounting Standards—In February, 2013, the Financial Accounting Standards Board ("FASB") issued amendments to provide guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The amendments are effective for fiscal years and interim periods within those years, beginning after December 15, 2013. The Company adopted this guidance in the first quarter of 2014 and has properly reflected the impact in the guarantor financial statements.

In May 2014, the FASB issued guidance that outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most of the existing revenue recognition guidance. This guidance requires an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures which are effective for interim and annual reporting periods in fiscal years that begin after December 15, 2016.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

In June 2014, the FASB issued a guidance update for the presentation of stock compensation.  This guidance requires an entity to treat performance targets that can be met after the requisite service period of a share based award has ended, as a performance condition that affects vesting which is effective for interim and annual reporting periods in fiscal years that begin after December 15, 2015.  We are currently evaluating the impact of the adoption of this guidance in our consolidated financial statements.

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Investment in Real Estate (Tables)

6 Months Ended

Jun. 30, 2014

Real Estate [Abstract]

Schedule of Gross Investment in Real Estate

A schedule of our gross investment in real estate follows:

	June 30, 2014						December 31, 2013
(dollars in millions)	Land		Building and Improvements		Equipment		Land		Building and Improvements		Equipment
West Seventh St., Cincinnati, OH (7th Street)	$	0.9	$	107.6	$	12.1	$	0.9	$	107.6	$	11.0
Parkway Dr., Mason, OH (Mason)	—		20.2		0.6		—		20.2		0.6
Industrial Rd., Florence, KY (Florence)	2.2		41.4		2.7		2.2		41.4		2.4
Goldcoast Dr., Cincinnati, OH (Goldcoast)	0.6		6.7		0.1		0.6		6.7		0.1
Knightsbridge Dr., Hamilton, OH (Hamilton)	—		49.2		3.6		—		49.2		3.6
E. Monroe St., South Bend, IN (Monroe St.)	—		2.5		0.1		—		2.5		—
Springer St., Lombard, IL (Lombard)	0.7		4.6		3.9		0.7		4.6		0.2
Crescent Circle, South Bend, IN (Blackthorn)	—		3.3		0.2		—		3.3		0.2
Kingsview Dr., Lebanon, OH (Lebanon)	4.0		76.8		4.5		4.0		71.7		2.2
McAuley Place, Blue Ash, OH (Blue Ash)	—		0.6		0.1		—		0.6		—
Westway Park Blvd., Houston, TX (Houston West 1)	1.4		84.4		42.8		1.4		84.4		39.4
Westway Park Blvd., Houston, TX (Houston West 2)	2.0		22.5		43.5		2.0		22.4		15.8
Westway Park Blvd., Houston, TX (Houston West 3)	18.4		—		—		18.3		—		—
Southwest Fwy., Houston, TX (Galleria)	—		68.5		14.2		—		68.4		13.3
E. Ben White Blvd., Austin, TX (Austin 1)	—		22.5		1.2		—		22.5		1.2
S. State Highway 121 Business, Lewisville, TX (Lewisville)	—		77.2		21.7		—		77.0		20.3
Marsh Lane, Carrollton, TX (Marsh Ln)	—		0.1		0.6		—		0.1		0.5
Midway Rd., Carrollton, TX (Midway)	—		2.0		0.4		—		2.0		0.4
W. Frankford Rd., Carrollton, TX (Carrollton)	16.1		43.2		77.7		16.1		42.6		34.8
Bryan St., Dallas, TX (Bryan St)	—		0.1		0.1		—		0.1		0.1
North Freeway, Houston, TX (Greenspoint)	—		1.3		0.4		—		1.3		0.4
South Ellis Street, Chandler, AZ (Phoenix 1)	15.0		56.1		32.3		15.0		55.7		11.7
South Ellis Street, Chandler, AZ (Phoenix 2)	—		0.2		—		—		—		—
Westover Hills Blvd., San Antonio, TX (San Antonio 1)	4.6		32.1		32.7		4.6		32.1		29.5
Westover Hills Blvd., San Antonio, TX (San Antonio 2)	6.9		—		—		6.7		—		—
Metropolis Dr., Austin, TX (Austin 2)	2.0		23.2		2.5		2.0		23.1		1.7
Kestral Way (London)	—		35.9		0.7		—		34.8		0.7
Jurong East (Singapore)	—		9.5		0.1		—		9.4		0.1
Ridgetop Circle, Sterling, VA (Loudon County)	7.0		—		—		6.9		—		—
Metropolis Dr., Austin, TX (Austin 3)	7.9		—		—		7.9		—		—
Total	$	89.7	$	791.7	$	298.8	$	89.3	$	783.7	$	190.2

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Related Party Transactions

6 Months Ended

Jun. 30, 2014

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

The condensed consolidated and combined financial statements reflect the following transactions with CBI and its affiliated entities, including Cincinnati Bell Telephone (“CBT”) and Cincinnati Bell Technology Solutions (“CBTS”):

Revenues—The Company records revenues from CBI under contractual service arrangements. These services include lease of data center space, power and cooling in certain of our data center facilities and network interface services and office space.

Operating Expenses—The Company records expenses from CBI incurred in relation to network support, services calls, monitoring and management, storage and backup, IT systems support, and connectivity services.

Revenues and expenses for the periods presented were as follows:

	Successor		Successor		Successor		Successor		Predecessor
(dollars in millions)	Three Months Ended June 30, 2014		Three Months Ended June 30, 2013		Six Months Ended June 30, 2014		January 24, 2013 to June 30, 2013		January 1, 2013 to January 23, 2013
Revenue:
Data center colocation agreement provided to CBT and CBTS	$	1.5	$	1.0	$	3.0	$	2.0	$	0.3
229 West 7th Street lease provided to CBT	0.5		0.1		1.0		0.1		—
Goldcoast Drive/Parkway (Mason) lease	0.1		0.1		0.2		0.1		—
Transition services provided to CBTS (network interfaces)	0.1		0.5		0.2		0.7		0.1
Data center leases provided to CBTS	3.6		0.7		7.2		3.4		—
Total revenue	$	5.8	$	2.4	$	11.6	$	6.3	$	0.4
Operating costs and expenses:
Transition services agreement by CBTS	$	0.3	$	—	$	0.6	$	—	$	—
Connectivity charges provided by CBT	0.2		0.5		0.5		0.7		0.1
209 West 7th Street rent provided by CBT	0.1		—		0.1		—		—
Allocated employee benefit plans by CBI	—		—		—		—		0.2
Allocated centralized insurance costs by CBI	—		—		—		—		0.1
Total operating costs and expenses	$	0.6	$	0.5	$	1.2	$	0.7	$	0.4

As of June 30, 2014 and December 31, 2013, the amounts receivable from and payable to CBI were as follows:

	As of		As of
(dollars in millions)	June 30, 2014		December 31, 2013
Accounts receivable from CBI	$	0.5	$	0.6
Accounts payable	$	1.8	$	1.7
Distributions payable	5.6		6.8
Total amounts payable to CBI	$	7.4	$	8.5

The distributions payable as of June 30, 2014, reflect the balance due to CBI related to the dividend declared on May 7, 2014, of $0.21 per share, related to CBI's ownership of Operating Partnership units.

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Noncontrolling Interest

6 Months Ended

Jun. 30, 2014

Noncontrolling Interest [Abstract]

Noncontrolling Interest

Noncontrolling Interest

As part of the IPO, CyrusOne Inc. together with CyrusOne GP, purchased 21.9 million (or 33.9%) of the outstanding partnership units of CyrusOne LP and CBI retained a 66.1% ownership or 42.6 million Operating Partnership units in CyrusOne LP. As of January 24, 2014, CBI had the option to exchange the partnership units of CyrusOne into cash, or shares of common stock of CyrusOne Inc. as determined by us, on a one-for-one basis based upon the fair value of a share of our common stock. We evaluated whether we control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of these Operating Partnership units. Based on the results of this analysis, we concluded that these convertible Operating Partnership units met the criteria to be classified within equity. In addition, for each share of common stock issued by us, the Operating Partnership issues an equivalent Operating Partnership unit to the Company.

As stock is issued by CyrusOne, CBI's ownership percentage will change. CyrusOne has issued shares in conjunction with the LTIP discussed in Note 10. Furthermore, on June 25, 2014, CyrusOne Inc. completed a public offering of 15,985,000 shares of its common stock, including 2,085,000 shares of common stock issued upon the exercise in full by the underwriters of their option to purchase additional shares, at a price to the public of $23.25 per share or $371.7 million. CyrusOne Inc. used the proceeds of $355.9 million, net of underwriting costs of $15.8 million, to acquire 15,985,000 common units of limited partnership interests in the Operating Partnership from a subsidiary of CBI. As a result, the Company's noncontrolling interest decreased by $166.9 million and CBI's ownership decreased to 40.8% as of June 30, 2014. In addition, the Company's additional paid in capital decreased by $189 million which represents the difference between the proceeds and the noncontrolling interest redeemed by CBI.

The following table shows the ownership interest as of June 30, 2014 and 2013 and the portion of net income (loss) and distributions for the six months ended June 30, 2014 and period ended June 30, 2013:

(dollars in millions, except per unit amount)	June 30, 2014				June 30, 2013
	The Company		CBI		The Company		CBI
Operating partnership units	38.7		26.6		22.1		42.6
Ownership %	59.2	%	40.8	%	34.2	%	65.8	%
Portion of net loss	(0.9	)	(2.0	)	(3.2	)	(6.4	)
Distributions	(12.9	)	(14.5	)	(6.5	)	(14.1	)

The redemption value of the remaining noncontrolling interests at June 30, 2014, was approximately $662.4 million based on the closing price of our stock of $24.90 on June 30, 2014.

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Debt and Other Financing Arrangements

6 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Debt and Other Financing Arrangements

Debt and Other Financing Arrangements

The Company’s outstanding debt and other financing arrangements consists of the following:

(dollars in millions)	June 30, 2014		December 31, 2013
Revolving credit agreement	$	—	$	—
Capital lease obligations	15.0		16.7
6 3/8% Senior Notes due 2022	525.0		525.0
Other financing arrangements	57.1		56.3
Total	$	597.1	$	598.0

Revolving credit agreement—On November 20, 2012, we entered into a credit agreement (the “Credit Agreement”) which provides for a $225 million senior secured revolving credit facility, with a sublimit of $50 million for letters of credit and a $30 million sublimit for swingline loans. The Credit Agreement has a maturity date of November 20, 2017. Borrowings under the Credit Agreement will be used for working capital, capital expenditures and other general corporate purposes of CyrusOne LLC, the operating subsidiary of CyrusOne LP, the borrower, and the other subsidiaries of CyrusOne, including for acquisitions, dividends and other distributions permitted thereunder. Letters of credit will be used for general corporate purposes.

Borrowings under the Credit Agreement bear interest, at our election, at a rate per annum equal to (i) LIBOR plus the applicable margin or (ii) the base rate plus the applicable margin. The applicable margin is based on our Total Net Leverage Ratio, as defined in the Credit Agreement, and ranges between 3.25% and 3.75% for LIBOR rate advances and 2.25% and 2.75% for base rate advances. As of June 30, 2014, the applicable margin was 3.25% for LIBOR rate advances and 2.25% for base rate advances. Base rate is the higher of (i) the bank prime rate, (ii) the one-month LIBOR rate plus 1.00% and (iii) the federal funds rate plus 0.5%.

Borrowings under the Credit Agreement are guaranteed by CyrusOne Inc., CyrusOne GP, CyrusOne Finance Corp., CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. The obligations under the Credit Agreement are secured by, subject to certain exceptions, the capital stock of certain of our subsidiaries, certain intercompany debt and the tangible and other intangible assets of us and certain of our subsidiaries.

The Credit Agreement contains customary affirmative and negative covenants (which are in some cases subject to certain exceptions), including, but not limited to, restrictions on the ability to incur additional indebtedness, create liens, make certain investments, make certain dividends and related distributions, prepay certain debt, engage in affiliate transactions, enter into, or undertake, certain liquidations, mergers, consolidations or acquisitions, amend the organizational documents and dispose of assets or subsidiaries. In addition, the Credit Agreement requires us to maintain a certain secured net leverage ratio, ratio of earnings before interest, taxes, depreciation and amortization (“EBITDA”) to fixed charges and ratio of total indebtedness to gross asset value, in each case on a consolidated basis. Notwithstanding the limitations set forth above, we will be permitted, subject to the terms and conditions of the Credit Agreement, to distribute to our shareholders cash dividends in an amount not to exceed 95% of our adjusted funds from operations ("AFFO") (as defined in the Credit Agreement) for any period.

The Credit Agreement contains customary events of default (which are in some cases subject to certain exceptions, thresholds, notice requirements and cure periods), including, but not limited to, nonpayment of principal or interest, failure to perform or observe covenants, breaches of representations and warranties, cross-defaults with certain other indebtedness, certain bankruptcy-related events or proceedings, final monetary judgments or orders, ERISA defaults, certain change of control events and loss of REIT status following a REIT election by us. Notwithstanding the foregoing, our revolving credit facility restricts CyrusOne LP from making distributions to its stockholders and limited partners, or redeeming or otherwise repurchasing shares of its capital stock or partnership units, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable CyrusOne Inc. to maintain its qualification as a REIT and to minimize the payment of income tax.

As of June 30, 2014, and December 31, 2013, there were no borrowings on the Credit Agreement.

We pay commitment fees for the unused amount of borrowing capacity on the Credit Agreement and letter of credit fees on any outstanding letters of credit. The commitment fees are equal to 0.50% of the actual daily amount by which the aggregate revolving commitments exceed the sum of outstanding revolving loans and letter of credit obligations. Commitment fees for the revolving credit facility for the three months ended June 30, 2014 and the period ended June 30, 2013 were $0.3 million. For the six months ended June 30, 2014 and the period ended June 30, 2013, commitment fees were $0.6 million. Commitment fees for the period ended January 23, 2013 were less than $0.1 million.

Capital Lease Obligations—We use leasing as a source of financing for certain of our data center facilities and related equipment. We currently operate three data center facilities recognized as capital leases. We have options to extend the initial lease term on all of these leases. Interest expense on capital lease obligations was $1.5 million and $3.0 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, interest expense on capital lease obligations was $1.5 million, $3.0 million and $0.3 million, respectively.

6 ³/8% Senior Notes due 2022—On November 20, 2012, CyrusOne LP and CyrusOne Finance Corp. (the “Issuers”) issued $525 million of 6 ³/8% Senior Notes due 2022 (“6 ³/8% Senior Notes”). The 6 ³/8% Senior Notes are senior unsecured obligations of the Issuers, which rank equally in right of payment with all existing and future unsecured senior debt of the Issuers. The 6 ³/8% Senior Notes are effectively subordinated to all existing and future secured indebtedness of the Issuers to the extent of the value of the assets securing such indebtedness. The 6 ³/8% Senior Notes are guaranteed on a joint and several basis, fully and unconditionally, by CyrusOne Inc., CyrusOne GP, and each of CyrusOne LP’s existing and future domestic 100% owned subsidiaries, subject to certain exceptions. Each such guarantee is a senior unsecured obligation of the applicable guarantor, ranking equally with all existing and future unsecured senior debt of such guarantor and effectively subordinated to all existing and future secured indebtedness of such guarantor to the extent of the value of the assets securing that indebtedness. The 6 ³/8% Senior Notes are structurally subordinated to all liabilities (including trade payables) of each subsidiary of the Issuers that does not guarantee the Senior Notes. The 6 ³/8% Senior Notes bear interest at a rate of 6 ³/8% per annum, payable semi-annually on May 15 and November 15 of each year, beginning on May 15, 2013. Interest expense on the Senior Notes was $8.3 million and $16.7 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ending June 30, 2013 and January 23, 2013, interest expense on the Senior Notes was $8.3 million, $14.6 million and $2.1 million, respectively.

The indenture governing the 6 ³/8% Senior Notes contains affirmative and negative covenants customarily found in indebtedness of this type, including a number of covenants that, among other things, restrict, subject to certain exceptions, the Company’s ability to: incur secured or unsecured indebtedness; pay dividends or distributions on its equity interests, or redeem or repurchase equity interests of the Company; make certain investments or other restricted payments; enter into transactions with affiliates; enter into agreements limiting the ability of the operating partnership’s subsidiaries to pay dividends or make certain transfers and other payments to the operating partnership or to other subsidiaries; sell assets; and merge, consolidate or transfer all or substantially all of the operating partnership’s assets. Notwithstanding the foregoing, our indenture restricts CyrusOne LP from making distributions to its stockholders and limited partners, or redeeming or otherwise repurchasing shares of its capital stock or partnership units, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable CyrusOne Inc. to maintain its qualification as a REIT and to minimize the payment of income tax. The Company and its subsidiaries are also required to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis, provided that for the purposes of such calculation their revolving credit facility shall be treated as unsecured indebtedness, in each case subject to certain qualifications set forth in the indenture.

The 6 ³/8% Senior Notes will mature on November 15, 2022. However, prior to November 15, 2017, the Issuers may, at their option, redeem some or all of the 6 ³/8% Senior Notes at a redemption price equal to 100% of the principal amount of the 6 ³/8% Senior Notes, together with accrued and unpaid interest, if any, plus a “make-whole” premium. On or after November 15, 2017, the Issuers may, at our option, redeem some or all of the 6 ³/8% Senior Notes at any time at declining redemption prices equal to (i) 103.188% beginning on November 15, 2017, (ii) 102.125% beginning on November 15, 2018, (iii) 101.063% beginning on November 15, 2019 and (iv) 100.000% beginning on November 15, 2020 and thereafter, plus, in each case, accrued and unpaid interest, if any, to the applicable redemption date. In addition, before November 15, 2015, and subject to certain conditions, the Issuers may, at their option, redeem up to 35% of the aggregate principal amount of the 6 ³/8% Senior Notes with the net proceeds of certain equity offerings at 106.375% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption; provided that (i) at least 65% of the aggregate principal amount of the 6 ³/8% Senior Notes remains outstanding and (ii) the redemption occurs within 90 days of the closing of any such equity offering.

Other Financing Arrangements—Other financing arrangements represents leases of real estate in which we are involved in the construction of structural improvements to develop buildings into data centers. When we bear substantially all the construction period risk, such as managing or funding construction, we are deemed to be the accounting owner of the leased property and, at the lease inception date, we are required to record at fair value the property and associated liability on our balance sheet. These transactions generally do not qualify for sale-leaseback accounting due to our continued involvement in these data center operations.

Deferred Financing Costs—Deferred financing costs are costs incurred in connection with obtaining long-term financing. Deferred financing costs were incurred in connection with the issuance of the Credit Agreement and 6 ³/8% Senior Notes due 2022. As of June 30, 2014, deferred financing costs totaled $12.4 million. Deferred financing costs are amortized using the effective interest method over the term of the related indebtedness. Amortization of deferred financing costs, included in interest expense in the condensed consolidated and combined statements of operations, totaled $0.9 million and $1.8 million for the three and six months ended June 30, 2014, respectively. For the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, these costs totaled $1.7 million, $2.3 million and $0.1 million, respectively.

Debt Covenants—The indenture governing the 6 ³/8% Senior Notes contains affirmative and negative covenants customarily found in indebtedness of this type, including a number of covenants that, among other things, restrict, subject to certain exceptions, the Company’s ability to: incur secured or unsecured indebtedness; pay dividends or distributions on its equity interests, or redeem or repurchase equity interests of the Company; make certain investments or other restricted payments; enter into transactions with affiliates; enter into agreements limiting the ability of the operating partnership’s subsidiaries to pay dividends or make certain transfers and other payments to the operating partnership or to other subsidiaries; sell assets; and merge, consolidate or transfer all or substantially all of the operating partnership’s assets. Notwithstanding the foregoing, the covenants contained in the indenture do not restrict the Company’s ability to pay dividends or distributions to shareholders to the extent (i) no default or event of default exists or is continuing under the indenture and (ii) the Company believes in good faith that we qualify as a REIT under the Code and the payment of such dividend or distribution is necessary either to maintain its status as a REIT or to enable it to avoid payment of any tax that could be avoided by reason of such dividend or distribution. The Company and its subsidiaries are also required to maintain total unencumbered assets of at least 150% of their unsecured debt on a consolidated basis, provided that for the purposes of such calculation their Credit Agreement facility shall be treated as unsecured indebtedness.

The Credit Agreement requires us to maintain a certain secured net leverage ratio, ratio of EBITDA to fixed charges and ratio of total indebtedness to gross asset value, in each case on a consolidated basis. Notwithstanding these limitations, we will be permitted, subject to the terms and conditions of the Credit Agreement, to distribute to our shareholders cash dividends in an amount not to exceed 95% of our AFFO (as defined in the Credit Agreement) for any period. Similarly, our indenture permits dividends and distributions necessary for us to maintain our status as a REIT.

The Company’s most restrictive covenants are generally included in its Credit Agreement. In order to continue to have access to the amounts available to it under the Credit Agreement, the Company must remain in compliance with all covenants.

As of June 30, 2014, the Company was in compliance with all covenants.

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Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The fair value of cash and cash equivalents, restricted cash, rent and other receivables, accounts payable and accrued expenses approximate their carrying value because of the short-term nature of these instruments.

The carrying value and fair value of other financial instruments are as follows:

	June 30, 2014				December 31, 2013
(dollars in millions)	Carrying Value		Fair Value		Carrying Value		Fair Value
6 3/8% Senior Notes due 2022	$	525.0	$	567.0	$	525.0	$	539.4
Other financing arrangements	57.1		68.5		56.3		63.8

The fair value of our 6 ³/8% Senior Notes on June 30, 2014, and December 31, 2013, which are considered Level 1 of the fair value hierarchy, are based on the average trading price for these notes on or about the respective dates. The fair value of other financing arrangements at June 30, 2014 and December 31, 2013, was calculated using a discounted cash flow model that incorporates current borrowing rates for obligations of similar duration. These fair value measurements are considered Level 2 of the fair value hierarchy.

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Shareholders' Equity

6 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

On May 7, 2014, we announced a regular cash dividend of $0.21 per common share payable to shareholders of record as of June 27, 2014. In addition, holders of Operating Partnership units also received a distribution of $0.21 per unit. The dividend and distribution were paid on July 15, 2014.

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Debt and Other Financing Arrangements - Debt and Capital Lease Obligations (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Nov. 20, 2012
6.375% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt			$ 525.0
Stated interest rate	6.375%	6.375%
Successor [Member]
Debt Instrument [Line Items]
Revolving credit agreement	0	0
Capital lease obligations	15.0	16.7
Long-term debt	525.0	525.0
Other financing arrangements	57.1	56.3
Total	597.1	598.0
Successor [Member] | 6.375% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 525.0	$ 525.0

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Guarantors Guarantors

6 Months Ended

Jun. 30, 2014

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Guarantors

Guarantors

CyrusOne Inc.

CyrusOne LP and CyrusOne Finance Corp., as “LP Co-issuer” and “Finance Co-issuer,” respectively (together, the “Issuers”), had $525 million aggregate principal amount of Senior Notes outstanding at June 30, 2014. The Senior Notes are fully and unconditionally and jointly and severally guaranteed on a senior basis by CyrusOne Inc. (“Parent Guarantor”), CyrusOne GP (“General Partner”), and CyrusOne LP’s 100% owned subsidiaries, CyrusOne LLC, CyrusOne TRS Inc. and CyrusOne Foreign Holdings LLC (such subsidiaries, together the “Guarantors”). None of the subsidiaries organized outside of the United States (collectively, the “Non-Guarantors”) guarantee the Senior Notes. Subject to the provisions of the indenture governing the Senior Notes, in certain circumstances, a Guarantor may be released from its guarantee obligation, including:

• upon the sale or other disposition (including by way of consolidation or merger) of such Guarantor or of all of the capital stock of such Guarantor such that such Guarantor is no longer a restricted subsidiary under the indenture,

• upon the sale or disposition of all or substantially all of the assets of the Guarantor,

• upon the LP Co-issuer designating such Guarantor as an unrestricted subsidiary under the terms of the indenture,

• if such Guarantor is no longer a guarantor or other obligor of any other indebtedness of the LP Co-issuer or the Parent Guarantor, and

• upon the defeasance or discharge of the Senior Notes in accordance with the terms of the indenture.

The following provides information regarding the entity structure of each guarantor of the Senior Notes:

CyrusOne Inc. – CyrusOne Inc. was formed on July 31, 2012. As of January 23, 2013, CyrusOne Inc. was a wholly-owned subsidiary of CBI. Effective January 24, 2013, CyrusOne Inc. completed its IPO of common stock for net proceeds of $337.1 million, and together with the General Partner, purchased a 33.9% ownership interest in CyrusOne LP. As of June 25, 2014, CyrusOne Inc. increased its ownership in CyrusOne LP to 59.2%. CyrusOne Inc. also represents a guarantor or Parent Guarantor and became a separate registrant with the SEC upon completion of its IPO.

CyrusOne GP – CyrusOne GP was formed on July 31, 2012, and was a 100% owned subsidiary of CyrusOne Inc. as of January 23, 2013. Effective upon completion of CyrusOne Inc.’s IPO, this entity became the general partner and 1% owner of CyrusOne LP and has no other assets or operations. Prior to the IPO, this entity did not incur any obligations or record any transactions.

Issuers – The Issuers include CyrusOne LP and CyrusOne Finance Corp. CyrusOne Finance Corp., a 100% owned subsidiary of CyrusOne LP, was formed for the sole purpose of acting as co-issuer of the Senior Notes and has no other assets or operations. CyrusOne LP, in addition to being the co-issuer of the Senior Notes, is also the 100% owner, either directly or indirectly, of the Guarantors and Non-Guarantors.

Guarantors – The guarantors include CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. CyrusOne LLC accounts for all of the domestic operations of CyrusOne LP, including the businesses that composed the Predecessor operations. CyrusOne LLC, together with CyrusOne Foreign Holdings LLC, directly or indirectly owns 100% of the Non-Guarantors. CyrusOne TRS Inc. had not incurred any obligations or recorded any material transactions for the three and six months ended June 30, 2014, the three months ended June 30, 2013 or the period ended June 30, 2013.

As of June 30, 2014, the Non-Guarantors consist of 100% owned subsidiaries which conduct operations in the United Kingdom and Singapore.

The following schedules present the balance sheets as of June 30, 2014 and December 31, 2013 for the Parent Guarantor, General Partner, LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantor. The following schedules also present the statements of operations and statements of cash flows for the three and six months ended June 30, 2014, the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, for the Parent Guarantor, General Partner, LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantors.

Condensed Consolidating Balance Sheets

(dollars in millions)	As of June 30, 2014
	Parent Guarantor		General Partner		LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	—	$	—	$	89.7		$	—		$	—		$	89.7
Buildings and improvements	—		—		—		—		746.3			45.4			—			791.7
Equipment	—		—		—		—		297.9			0.9			—			298.8
Construction in progress	—		—		—		—		59.5			—			—			59.5
Subtotal	—		—		—		—		1,193.4			46.3			—			1,239.7
Accumulated depreciation	—		—		—		—		(274.2		)	(6.4		)	—			(280.6		)
Net investment in real estate	—		—		—		—		919.2			39.9			—			959.1
Cash and cash equivalents	—		—		—		—		44.8			4.5			—			49.3
Investment in subsidiaries	751.0		7.5		773.7		—		5.1			—			(1,537.3		)	—
Rent and other receivables	—		—		—		—		59.2			2.3			—			61.5
Intercompany receivable	—		—		508.1		—		—			—			(508.1		)	—
Goodwill	—		—		—		—		276.2			—			—			276.2
Intangible assets, net	—		—		—		—		77.4			—			—			77.4
Due from affiliates	—		—		—		—		0.5			—			—			0.5
Other assets	—		—		12.4		—		66.2			3.5			—			82.1
Total assets	$	751.0	$	7.5	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(2,045.4	)	$	1,506.1
Accounts payable and accrued expenses	$	—	$	—	$	12.6	$	—	$	70.4		$	0.9		$	—		$	83.9
Deferred revenue	—		—		—		—		66.3			0.4			—			66.7
Intercompany payable	—		—		—		—		508.1			—			(508.1		)	—
Due to affiliates	—		—		5.6		—		1.8			—			—			7.4
Capital lease obligations	—		—		—		—		7.0			8.0			—			15.0
Long-term debt	—		—		525.0		—		—			—			—			525.0
Other financing arrangements	—		—		—		—		21.3			35.8			—			57.1
Total liabilities	—		—		543.2		—		674.9			45.1			(508.1		)	755.1
Total equity	751.0		7.5		751.0		—		773.7			5.1			(1,537.3		)	751.0
Total liabilities and equity	$	751.0	$	7.5	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(2,045.4	)	$	1,506.1

(dollars in millions)	As of December 31, 2013
	Parent Guarantor		General Partner		LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	—	$	—	$	89.3		$	—		$	—		$	89.3
Buildings and improvements	—		—		—		—		739.6			44.1			—			783.7
Equipment	—		—		—		—		189.4			0.8			—			190.2
Construction in progress	—		—		—		—		57.3			—			—			57.3
Subtotal	—		—		—		—		1,075.6			44.9			—			1,120.5
Accumulated depreciation	—		—		—		—		(232.0		)	(4.7		)	—			(236.7		)
Net investment in real estate	—		—		—		—		843.6			40.2			—			883.8
Cash and cash equivalents	—		—		—		—		146.8			2.0			—			148.8
Investment in subsidiaries	777.6		7.8		795.0		—		2.1			—			(1,582.5		)	—
Rent and other receivables	—		—		—		—		40.3			0.9			—			41.2
Intercompany receivable	—		—		508.1		—		0.2			—			(508.3		)	—
Goodwill	—		—		—		—		276.2			—			—			276.2
Intangible assets, net	—		—		—		—		85.9			—			—			85.9
Due from affiliates	—		—		—		—		0.6			—			—			0.6
Other assets	—		—		14.1		—		53.0			3.2			—			70.3
Total assets	$	777.6	$	7.8	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(2,090.8	)	$	1,506.8
Accounts payable and accrued expenses	$	—	$	—	$	7.8	$	—	$	58.6		$	0.4		$	—		$	66.8
Deferred revenue	—		—		—		—		55.1			0.8			—			55.9
Intercompany payable	—		—		—		—		508.1			0.2			(508.3		)	—
Due to affiliates	—		—		6.8		—		1.7			—			—			8.5
Capital lease obligations	—		—		—		—		8.6			8.1			—			16.7
Long-term debt	—		—		525.0		—		—			—			—			525.0
Other financing arrangements	—		—		—		—		21.6			34.7			—			56.3
Total liabilities	—		—		539.6		—		653.7			44.2			(508.3		)	729.2
Total parent’s net investment	777.6		7.8		777.6		—		795.0			2.1			(1,582.5		)	777.6
Total liabilities and parent’s net investment	$	777.6	$	7.8	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(2,090.8	)	$	1,506.8

Condensed Consolidating Statements of Operations

(dollars in millions)	Three Months Ended June 30, 2014
		Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	—		$	—	$	80.4		$	1.3		$	—		$	81.7
Costs and expenses:
Property operating expenses		—			—		—			—		31.2			0.6			—			31.8
Sales and marketing		—			—		—			—		3.4			0.1			—			3.5
General and administrative		—			—		—			—		8.4			—			—			8.4
Depreciation and amortization		—			—		—			—		29.1			0.7			—			29.8
Transaction costs		—			—		—			—		0.8			—			—			0.8
Total costs and expenses		—			—		—			—		72.9			1.4			—			74.3
Operating income (loss)		—			—		—			—		7.5			(0.1		)	—			7.4
Interest expense		—			—		9.7			—		0.1			0.9			—			10.7
Income (loss) before income taxes		—			—		(9.7		)	—		7.4			(1.0		)	—			(3.3		)
Income tax expense		—			—		—			—		(0.3		)	—			—			(0.3		)
Equity earnings (loss) related to investment in subsidiaries		(3.6		)	—		6.1			—		(1.0		)	—			(1.5		)	—
Net income (loss)		(3.6		)	—		(3.6		)	—		6.1			(1.0		)	(1.5		)	(3.6		)
Noncontrolling interest in net loss		(2.5		)	—		—			—		—			—			—			(2.5		)
Net income (loss) attributed to common shareholders		$	(1.1	)	$	—	$	(3.6	)	$	—	$	6.1		$	(1.0	)	$	(1.5	)	$	(1.1	)

(dollars in millions)	Three Months Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—		$	—		$	—		$	—	$	62.5		$	1.1		$	—	$	63.6
Costs and expenses:
Property operating expenses	—			—			—			—		23.8			0.8			—		24.6
Sales and marketing	—			—			—			—		2.8			0.1			—		2.9
General and administrative	—			—			—			—		7.1			—			—		7.1
Depreciation and amortization	—			—			—			—		22.3			0.7			—		23.0
Transaction costs	—			—			—			—		0.4			—			—		0.4
Total costs and expenses	—			—			—			—		56.4			1.6			—		58.0
Operating income (loss)	—			—			—			—		6.1			(0.5		)	—		5.6
Interest expense	—			—			10.1			—		0.2			0.5			—		10.8
Loss on extinguishment of debt	—			—			—			—		1.3			—			—		1.3
Income (loss) before income taxes	—			—			(10.1		)	—		4.6			(1.0		)	—		(6.5		)
Income tax expense	—			—			—			—		(0.3		)	—			—		(0.3		)
Equity earnings (loss) related to investment in subsidiaries	(6.8		)	(0.1		)	3.3			—		(1.0		)	—			4.6		—
Net income (loss)	(6.8		)	(0.1		)	(6.8		)	—		3.3			(1.0		)	4.6		(6.8		)
Noncontrolling interest in net loss	(4.5		)	—			—			—		—			—			—		(4.5		)
Net income (loss) attributed to common shareholders	$	(2.3	)	$	(0.1	)	$	(6.8	)	$	—	$	3.3		$	(1.0	)	$	4.6	$	(2.3	)

(dollars in millions)	Six Months Ended June 30, 2014
		Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	—		$	—	$	156.6		$	2.6		$	—		$	159.2
Costs and expenses:
Property operating expenses		—			—		—			—		58.3			1.2			—			59.5
Sales and marketing		—			—		—			—		6.4			0.1			—			6.5
General and administrative		—			—		—			—		15.6			0.1			—			15.7
Depreciation and amortization		—			—		—			—		55.9			1.5			—			57.4
Transaction costs		—			—		—			—		0.9			—			—			0.9
Total costs and expenses		—			—		—			—		137.1			2.9			—			140.0
Operating income (loss)		—			—		—			—		19.5			(0.3		)	—			19.2
Interest expense		—			—		19.3			—		0.3			1.8			—			21.4
Income (loss) before income taxes		—			—		(19.3		)	—		19.2			(2.1		)	—			(2.2		)
Income tax expense		—			—		—			—		(0.7		)	—			—			(0.7		)
Equity earnings (loss) related to investment in subsidiaries		(2.9		)	—		16.4			—		(2.1		)	—			(11.4		)	—
Net income (loss)		(2.9		)	—		(2.9		)	—		16.4			(2.1		)	(11.4		)	(2.9		)
Noncontrolling interest in net loss		(2.0		)	—		—			—		—			—			—			(2.0		)
Net income (loss) attributed to common shareholders		$	(0.9	)	$	—	$	(2.9	)	$	—	$	16.4		$	(2.1	)	$	(11.4	)	$	(0.9	)

(dollars in millions)	Period Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—		$	—		$	—		$	—	$	107.0		$	1.6		$	—	$	108.6
Costs and expenses:
Property operating expenses	—			—			—			—		38.8			1.1			—		39.9
Sales and marketing	—			—			—			—		4.9			0.1			—		5.0
General and administrative	—			—			—			—		12.5			—			—		12.5
Depreciation and amortization	—			—			—			—		38.1			1.3			—		39.4
Transaction costs	—			—			—			—		0.4			—			—		0.4
Total costs and expenses	—			—			—			—		94.7			2.5			—		97.2
Operating income (loss)	—			—			—			—		12.3			(0.9		)	—		11.4
Interest expense	—			—			17.3			—		0.9			1.0			—		19.2
Loss on extinguishment of debt	—			—			—			—		1.3			—			—		1.3
Income (loss) before income taxes	—			—			(17.3		)	—		10.1			(1.9		)	—		(9.1		)
Income tax expense	—			—			—			—		(0.5		)	—			—		(0.5		)
Equity earnings (loss) related to investment in subsidiaries	(9.6		)	(0.1		)	7.7			—		(1.9		)	—			3.9		—
Net income (loss)	(9.6		)	(0.1		)	(9.6		)	—		7.7			(1.9		)	3.9		(9.6		)
Noncontrolling interest in net loss	(6.4		)	—			—			—		—			—			—		(6.4		)
Net income (loss) attributed to common shareholders	$	(3.2	)	$	(0.1	)	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	3.9	$	(3.2	)

(dollars in millions)	Period Ended January 23, 2013
	Parent Guarantor		General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue	$	—	$	—	$	—		$	—	$	14.9		$	0.2		$	—	$	15.1
Costs and expenses:
Property operating expenses	—		—		—			—		4.8			—			—		4.8
Sales and marketing	—		—		—			—		0.7			—			—		0.7
General and administrative	—		—		—			—		1.4			0.1			—		1.5
Transaction-related compensation	—		—		—			—		20.0			—			—		20.0
Depreciation and amortization	—		—		—			—		5.2			0.1			—		5.3
Transaction costs	—		—		—			—		0.1			—			—		0.1
Total costs and expenses	—		—		—			—		32.2			0.2			—		32.4
Operating loss	—		—		—			—		(17.3		)	—			—		(17.3		)
Interest expense	—		—		2.3			—		0.1			0.1			—		2.5
Loss before income taxes	—		—		(2.3		)	—		(17.4		)	(0.1		)	—		(19.8		)
Income tax expense	—		—		—			—		(0.4		)	—			—		(0.4		)
Equity earnings (loss) related to investment in subsidiaries	—		—		(17.9		)	—		(0.1		)	—			18.0		—
Net loss	$	—	$	—	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0	$	(20.2	)

Condensed Consolidating Statements of Cash Flows

(dollars in millions)	Six Months Ended June 30, 2014
	Parent Guarantor			General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(2.9	)	$	—	(2.9		)	$	—	$	16.4		$	(2.1	)	$	(11.4	)	$	(2.9	)
Equity (income) loss related to investment in subsidiaries	2.9			—		(16.4		)	—		2.1			—			11.4			—
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	—			—		—			—		55.9			1.5			—			57.4
Noncash interest expense	—			—		1.8			—		—			—			—			1.8
Stock-based compensation expense	—			—		—			—		5.0			—			—			5.0
Provision for bad debt write off	—			—		—			—		0.6			—			—			0.6
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		(0.1		)	—		(29.7		)	(1.6		)	—			(31.4		)
Accounts payable and accrued expenses	—			—		4.8			—		(2.8		)	0.5			—			2.5
Deferred revenues	—			—		—			—		11.2			(0.4		)	—			10.8
Due to affiliates	—			—		—			—		0.2			—			—			0.2
Net cash provided by (used in) operating activities	—			—		(12.8		)	—		58.9			(2.1		)	—			44.0
Cash flows from investing activities:
Capital expenditures - other development	—			—		—			—		(116.8		)	—			—			(116.8		)
Intercompany advances	—			—		—			—		0.2			(0.2		)	—			—
Return of investment	24.5			—		37.3			—		(13.3		)	—			(48.5		)	—
Net cash provided by (used in) investing activities	24.5			—		37.3			—		(129.9		)	(0.2		)	(48.5		)	(116.8		)
Cash flows from financing activities:
Issuance of common stock	355.9			—		—			—		—			—			—			355.9
Stock issuance costs	(0.5		)	—		—			—		—			—			—			(0.5		)
Acquisition of partnership units	(355.9		)	—		—			—		—			—			—			(355.9		)
Dividends paid	(24.0		)	—		(24.0		)	—		(24.0		)	—			48.0			(24.0		)
Payments on capital leases and other financing arrangements	—			—		—			—		(1.9		)	(0.3		)	—			(2.2		)
Contributions (distributions) from parent guarantor	—			—		(0.5		)	—		(5.1		)	5.1			0.5			—
Net cash (used in) provided by financing activities	(24.5		)	—		(24.5		)	—		(31.0		)	4.8			48.5			(26.7		)
Net (decrease) increase in cash and cash equivalents	—			—		—			—		(102.0		)	2.5			—			(99.5		)
Cash and cash equivalents at beginning of period	—			—		—			—		146.8			2.0			—			148.8
Cash and cash equivalents at end of period	$	—		$	—	$	—		$	—	$	44.8		$	4.5		$	—		$	49.3

(dollars in millions)	Period Ended June 30, 2013
	Parent Guarantor			General Partner			LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(9.6	)	$	(0.1	)	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	3.9		$	(9.6	)
Equity loss (income) related to investment in subsidiaries	9.6			0.1			(7.7		)	—		1.9			—			(3.9		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—			—			—		38.1			1.3			—			39.4
Noncash interest expense	—			—			2.0			—		(1.0		)	—			—			1.0
Stock-based compensation expense	—			—			—			—		3.0			—			—			3.0
Loss on extinguishment of debt	—			—			—			—		1.3			—			—			1.3
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—			—			—		10.4			(0.4		)	—			10.0
Accounts payable and accrued expenses	—			—			15.2			—		(34.7		)	0.4			—			(19.1		)
Deferred revenues	—			—			—			—		(3.1		)	(0.1		)	—			(3.2		)
Due to affiliates	—			—			—			—		16.7			—			—			16.7
Net cash (used in) provided by operating activities	—			—			(0.1		)	—		40.3			(0.7		)	—			39.5
Cash flows from investing activities:
Capital expenditures - acquisitions of real estate	—			—			—			—		(26.6		)	—			—			(26.6		)
Capital expenditures - other development	—			—			—			—		(66.9		)	(0.1		)	—			(67.0		)
Release of restricted cash	—			—			—			—		4.4			—			—			4.4
Investment in subsidiaries	(337.1		)	—			(337.1		)	—		—			—			674.2			—
Advances to affiliate	—			—			—			—		(0.1		)	0.1			—			—
Net cash used in investing activities	(337.1		)	—			(337.1		)	—		(89.2		)	—			674.2			(89.2		)
Cash flows from financing activities:
Issuance of common stock/partnership units	360.5			—			337.1			—		—			—			(337.1		)	360.5
IPO costs	(23.4		)	—			—			—		—			—			—			(23.4		)
Dividends paid	—			—			—			—		(10.3		)	—			—			(10.3		)
Payments on capital leases and other financing arrangements	—			—			—			—		(2.0		)	(0.5		)	—			(2.5		)
Payments to buyout capital leases	—			—			—			—		(9.6		)	—			—			(9.6		)
Payments to buyout other financing arrangement	—			—			—			—		(10.2		)	—			—			(10.2		)
Contribution from parent guarantor	—			—			—			—		335.4			1.7			(337.1		)	—
Net cash provided by financing activities	337.1			—			337.1			—		303.3			1.2			(674.2		)	304.5
Net (decrease) increase in cash and cash equivalents	—			—			(0.1		)	—		254.4			0.5			—			254.8
Cash and cash equivalents at beginning of period	—			—			0.1			—		11.2			1.0			—			12.3
Cash and cash equivalents at end of period	$	—		$	—		$	—		$	—	$	265.6		$	1.5		$	—		$	267.1

(dollars in millions)	Period Ended January 23, 2013
	Parent Guarantor		General Partner		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	—	$	—	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0		$	(20.2	)
Equity loss (income) related to investment in subsidiaries	—		—		17.9			—		0.1			—			(18.0		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities	—		—		0.2			—		5.6			0.1			—			5.9
Changes in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—		—		—			—		(9.6		)	—			—			(9.6		)
Accounts payable and accrued expenses	—		—		2.1			—		18.4			—			—			20.5
Due to affiliates	—		—		—			—		1.5			—			—			1.5
Other changes in assets and liabilities	—		—		—			—		3.8			0.1			—			3.9
Net cash provided by operating activities	—		—		—			—		1.9			0.1			—			2.0
Cash flows from investing activities:
Capital expenditures - other development	—		—		—			—		(7.7		)	—			—			(7.7		)
Release of restricted cash	—		—		—			—		1.9			—			—			1.9
Intercompany advances	—		—		0.1			—		(0.1		)	—			—			—
Net cash provided by (used in) investing activities	—		—		0.1			—		(5.9		)	—			—			(5.8		)
Cash flows from financing activities:
Payments on capital lease obligations	—		—		—			—		(0.6		)	—			—			(0.6		)
Contributions from parent, net	—		—		—			—		0.2			—			—			0.2
Net cash used in financing activities	—		—		—			—		(0.4		)	—			—			(0.4		)
Net increase (decrease) in cash and cash equivalents	—		—		0.1			—		(4.4		)	0.1			—			(4.2		)
Cash and cash equivalents at beginning of period	—		—		—			—		15.6			0.9			—			16.5
Cash and cash equivalents at end of period	$	—	$	—	$	0.1		$	—	$	11.2		$	1.0		$	—		$	12.3

CyrusOne LP

CyrusOne LP and CyrusOne Finance Corp., as “LP Co-issuer” and “Finance Co-issuer,” respectively (together, the “Issuers”), had $525 million aggregate principal amount of Senior Notes outstanding at June 30, 2014. The Senior Notes are fully and unconditionally and jointly and severally guaranteed on a senior basis by CyrusOne Inc. (“Parent Guarantor”), CyrusOne GP (“General Partner”), and CyrusOne LP’s 100% owned subsidiaries, CyrusOne LLC, CyrusOne TRS Inc. and CyrusOne Foreign Holdings LLC (such subsidiaries, together the “Guarantors”). None of the subsidiaries organized outside of the United States (collectively, the “Non-Guarantors”) guarantee the Senior Notes. Subject to the provisions of the indenture governing the Senior Notes, in certain circumstances, a Guarantor may be released from its guarantee obligation, including:

• upon the sale or other disposition (including by way of consolidation or merger) of such Guarantor or of all of the capital stock of such Guarantor such that such Guarantor is no longer a restricted subsidiary under the indenture,

• upon the sale or disposition of all or substantially all of the assets of the Guarantor,

• upon the LP Co-issuer designating such Guarantor as an unrestricted subsidiary under the terms of the indenture,

• if such Guarantor is no longer a guarantor or other obligor of any other indebtedness of the LP Co-issuer or the Parent Guarantor, and

• upon the defeasance or discharge of the Senior Notes in accordance with the terms of the indenture.

The following provides information regarding the entity structure of each guarantor of the Senior Notes:

CyrusOne Inc. – CyrusOne Inc. was formed on July 31, 2012. As of January 23, 2013, CyrusOne Inc. was a wholly-owned subsidiary of CBI. Effective January 24, 2013, CyrusOne Inc. completed its IPO of common stock for net proceeds of $337.1 million, and together with the General Partner, purchased a 33.9% ownership interest in CyrusOne LP. As of June 25, 2014, CyrusOne Inc. increased its ownership in CyrusOne LP to 59.2%. CyrusOne Inc. also represents a guarantor or Parent Guarantor and became a separate registrant with the SEC upon completion of its IPO.

CyrusOne GP – CyrusOne GP was formed on July 31, 2012, and was a 100% owned subsidiary of CyrusOne Inc. as of January 23, 2013. Effective upon completion of CyrusOne Inc.’s IPO, this entity became the general partner and 1% owner of CyrusOne LP and has no other assets or operations. Prior to the IPO, this entity did not incur any obligations or record any transactions.

Issuers – The Issuers include CyrusOne LP and CyrusOne Finance Corp. CyrusOne Finance Corp., a 100% owned subsidiary of CyrusOne LP, was formed for the sole purpose of acting as co-issuer of the Senior Notes and has no other assets or operations. CyrusOne LP, in addition to being the co-issuer of the Senior Notes, is also the 100% owner, either directly or indirectly, of the Guarantors and Non-Guarantors.

Guarantors – The guarantors include CyrusOne LLC, CyrusOne TRS Inc., and CyrusOne Foreign Holdings LLC. CyrusOne LLC accounts for all of the domestic operations of CyrusOne LP, including the businesses that composed the Predecessor operations. CyrusOne LLC, together with CyrusOne Foreign Holdings LLC, directly or indirectly owns 100% of the Non-Guarantors. CyrusOne TRS Inc. had not incurred any obligations or recorded any material transactions for the three and six months ended June 30, 2014, the three months ended June 30, 2013 or the period ended June 30, 2013.

As of June 30, 2014, the Non-Guarantors consist of 100% owned subsidiaries which conduct operations in the United Kingdom and Singapore.

The following schedules present the balance sheets as of June 30, 2014 and December 31, 2013 for the LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantor. The following schedules also present the statements of operations and statements of cash flows for the three and six months ended June 30, 2014, the three months ended June 30, 2013 and the periods ended June 30, 2013 and January 23, 2013, for the LP Co-issuer, Finance Co-issuer, Guarantors, and Non-Guarantors.

Condensed Consolidating Balance Sheets

(dollars in millions)	As of June 30, 2014
	LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	89.7		$	—		$	—		$	89.7
Buildings and improvements	—		—		746.3			45.4			—			791.7
Equipment	—		—		297.9			0.9			—			298.8
Construction in progress	—		—		59.5			—			—			59.5
Subtotal	—		—		1,193.4			46.3			—			1,239.7
Accumulated depreciation	—		—		(274.2		)	(6.4		)	—			(280.6		)
Net investment in real estate	—		—		919.2			39.9			—			959.1
Cash and cash equivalents	—		—		44.8			4.5			—			49.3
Investment in subsidiaries	773.7		—		5.1			—			(778.8		)	—
Rent and other receivables	—		—		59.2			2.3			—			61.5
Intercompany receivable	508.1		—		—			—			(508.1		)	—
Goodwill	—		—		276.2			—			—			276.2
Intangible assets, net	—		—		77.4			—			—			77.4
Due from affiliates	—		—		0.5			—			—			0.5
Other assets	12.4		—		66.2			3.5			—			82.1
Total assets	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(1,286.9	)	$	1,506.1
Accounts payable and accrued expenses	$	12.6	$	—	$	70.4		$	0.9		$	—		$	83.9
Deferred revenue	—		—		66.3			0.4			—			66.7
Intercompany payable	—		—		508.1			—			(508.1		)	—
Due to affiliates	5.6		—		1.8			—			—			7.4
Capital lease obligations	—		—		7.0			8.0			—			15.0
Long-term debt	525.0		—		—			—			—			525.0
Other financing arrangements	—		—		21.3			35.8			—			57.1
Total liabilities	543.2		—		674.9			45.1			(508.1		)	755.1
Total partnership capital	751.0		—		773.7			5.1			(778.8		)	751.0
Total liabilities and partnership capital	$	1,294.2	$	—	$	1,448.6		$	50.2		$	(1,286.9	)	$	1,506.1

(dollars in millions)	As of December 31, 2013
	LP Co-issuer		Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Land	$	—	$	—	$	89.3		$	—		$	—		$	89.3
Buildings and improvements	—		—		739.6			44.1			—			783.7
Equipment	—		—		189.4			0.8			—			190.2
Construction in progress	—		—		57.3			—			—			57.3
Subtotal	—		—		1,075.6			44.9			—			1,120.5
Accumulated depreciation	—		—		(232.0		)	(4.7		)	—			(236.7		)
Net investment in real estate	—		—		843.6			40.2			—			883.8
Cash and cash equivalents	—		—		146.8			2.0			—			148.8
Investment in subsidiaries	795.0		—		2.1			—			(797.1		)	—
Rent and other receivables	—		—		40.3			0.9			—			41.2
Intercompany receivable	508.1		—		0.2			—			(508.3		)	—
Goodwill	—		—		276.2			—			—			276.2
Intangible assets, net	—		—		85.9			—			—			85.9
Due from affiliates	—		—		0.6			—			—			0.6
Other assets	14.1		—		53.0			3.2			—			70.3
Total assets	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(1,305.4	)	$	1,506.8
Accounts payable and accrued expenses	$	7.8	$	—	$	58.6		$	0.4		$	—		$	66.8
Deferred revenue	—		—		55.1			0.8			—			55.9
Intercompany payable	—		—		508.1			0.2			(508.3		)	—
Due to affiliates	6.8		—		1.7			—			—			8.5
Capital lease obligations	—		—		8.6			8.1			—			16.7
Long-term debt	525.0		—		—			—			—			525.0
Other financing arrangements	—		—		21.6			34.7			—			56.3
Total liabilities	539.6		—		653.7			44.2			(508.3		)	729.2
Total partnership capital	777.6		—		795.0			2.1			(797.1		)	777.6
Total liabilities and partnership capital	$	1,317.2	$	—	$	1,448.7		$	46.3		$	(1,305.4	)	$	1,506.8

Condensed Consolidating Statements of Operations

(dollars in millions)	Three Months Ended June 30, 2014
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	80.4		$	1.3		$	—		$	81.7
Costs and expenses:
Property operating expenses		—			—		31.2			0.6			—			31.8
Sales and marketing		—			—		3.4			0.1			—			3.5
General and administrative		—			—		8.4			—			—			8.4
Depreciation and amortization		—			—		29.1			0.7			—			29.8
Transaction costs		—			—		0.8			—			—			0.8
Total costs and expenses		—			—		72.9			1.4			—			74.3
Operating income (loss)		—			—		7.5			(0.1		)	—			7.4
Interest expense		9.7			—		0.1			0.9			—			10.7
Income (loss) before income taxes		(9.7		)	—		7.4			(1.0		)	—			(3.3		)
Income tax expense		—			—		(0.3		)	—			—			(0.3		)
Partnership earnings (loss) related to investment in subsidiaries		6.1			—		(1.0		)	—			(5.1		)	—
Net income (loss)		$	(3.6	)	$	—	$	6.1		$	(1.0	)	$	(5.1	)	$	(3.6	)

(dollars in millions)	Three Months Ended June 30, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue	$	—		$	—	$	62.5		$	1.1		$	—		$	63.6
Costs and expenses:
Property operating expenses	—			—		23.8			0.8			—			24.6
Sales and marketing	—			—		2.8			0.1			—			2.9
General and administrative	—			—		7.1			—			—			7.1
Depreciation and amortization	—			—		22.3			0.7			—			23.0
Transaction costs	—			—		0.4			—			—			0.4
Total costs and expenses	—			—		56.4			1.6			—			58.0
Operating income (loss)	—			—		6.1			(0.5		)	—			5.6
Interest expense	10.1			—		0.2			0.5			—			10.8
Loss on extinguishment of debt	—			—		1.3			—			—			1.3
Income (loss) before income taxes	(10.1		)	—		4.6			(1.0		)	—			(6.5		)
Income tax expense	—			—		(0.3		)	—			—			(0.3		)
Partnership earnings (loss) related to investment in subsidiaries	3.3			—		(1.0		)	—			(2.3		)	—
Net income (loss)	$	(6.8	)	$	—	$	3.3		$	(1.0	)	$	(2.3	)	$	(6.8	)

(dollars in millions)	Six Months Ended June 30, 2014
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	156.6		$	2.6		$	—		$	159.2
Costs and expenses:
Property operating expenses		—			—		58.3			1.2			—			59.5
Sales and marketing		—			—		6.4			0.1			—			6.5
General and administrative		—			—		15.6			0.1			—			15.7
Depreciation and amortization		—			—		55.9			1.5			—			57.4
Transaction costs		—			—		0.9			—			—			0.9
Total costs and expenses		—			—		137.1			2.9			—			140.0
Operating income (loss)		—			—		19.5			(0.3		)	—			19.2
Interest expense		19.3			—		0.3			1.8			—			21.4
Income (loss) before income taxes		(19.3		)	—		19.2			(2.1		)	—			(2.2		)
Income tax expense		—			—		(0.7		)	—			—			(0.7		)
Partnership earnings (loss) related to investment in subsidiaries		16.4			—		(2.1		)	—			(14.3		)	—
Net income (loss)		(2.9		)	—		16.4			(2.1		)	(14.3		)	(2.9		)

(dollars in millions)	Period Ended June 30, 2013
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Revenue		$	—		$	—	$	107.0		$	1.6		$	—		$	108.6
Costs and expenses:
Property operating expenses		—			—		38.8			1.1			—			39.9
Sales and marketing		—			—		4.9			0.1			—			5.0
General and administrative		—			—		12.5			—			—			12.5
Depreciation and amortization		—			—		38.1			1.3			—			39.4
Transaction costs		—			—		0.4			—			—			0.4
Total costs and expenses		—			—		94.7			2.5			—			97.2
Operating income (loss)		—			—		12.3			(0.9		)	—			11.4
Interest expense		17.3			—		0.9			1.0			—			19.2
Loss on extinguishment of debt		—			—		1.3			—			—			1.3
Income (loss) before income taxes		(17.3		)	—		10.1			(1.9		)	—			(9.1		)
Income tax expense		—			—		0.5			—			—			0.5
Partnership earnings (loss) related to investment in subsidiaries		7.7			—		(1.9		)	—			(5.8		)	—
Net income (loss)		$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	(5.8	)	$	(9.6	)

(dollars in millions)	Period Ended January 23, 2013
		LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations		Total
Revenue		$	—		$	—	$	14.9		$	0.2		$	—	$	15.1
Costs and expenses:
Property operating expenses		—			—		4.8			—			—		4.8
Sales and marketing		—			—		0.7			—			—		0.7
General and administrative		—			—		1.4			0.1			—		1.5
Transaction-related compensation		—			—		20.0			—			—		20.0
Depreciation and amortization		—			—		5.2			0.1			—		5.3
Transaction costs		—			—		0.1			—			—		0.1
Total costs and expenses		—			—		32.2			0.2			—		32.4
Operating loss		—			—		(17.3		)	—			—		(17.3		)
Interest expense		2.3			—		0.1			0.1			—		2.5
Loss before income taxes		(2.3		)	—		(17.4		)	(0.1		)	—		(19.8		)
Income tax expense		—			—		(0.4		)	—			—		(0.4		)
Partnership earnings (loss) related to investment in subsidiaries		(17.9		)	—		(0.1		)	—			18.0		—
Net loss		$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0	$	(20.2	)

Condensed Consolidating Statements of Cash Flows

(dollars in millions)	Six Months Ended June 30, 2014
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(2.9	)	$	—	$	16.4		$	(2.1	)	$	(14.3	)	$	(2.9	)
Partnership (income) loss related to investment in subsidiaries	(16.4		)	—		2.1			—			14.3			—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—		55.9			1.5			—			57.4
Noncash interest expense	1.8			—		—			—			—			1.8
Stock-based compensation expense	—			—		5.0			—			—			5.0
Provision for bad debt write off	—			—		0.6			—			—			0.6
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	(0.1		)	—		(29.7		)	(1.6		)	—			(31.4		)
Accounts payable and accrued expenses	4.8			—		(2.8		)	0.5			—			2.5
Deferred revenues	—			—		11.2			(0.4		)	—			10.8
Due to affiliates	—			—		0.2			—			—			0.2
Net cash provided by (used in) operating activities	(12.8		)	—		58.9			(2.1		)	—			44.0
Cash flows from investing activities:
Capital expenditures - other	—			—		(116.8		)	—			—			(116.8		)
Intercompany advances	—			—		0.2			(0.2		)	—			—
Return of investment	37.3			—		(13.3		)	—			(24.0		)	—
Net cash provided by (used in) investing activities	37.3			—		(129.9		)	(0.2		)	(24.0		)	(116.8		)
Cash flows from financing activities:
Distributions paid	(24.0		)	—		(24.0		)	—			24.0			(24.0		)
Payments on capital leases and other financing arrangements	—			—		(1.9		)	(0.3		)	—			(2.2		)
Contributions (distributions) from parent guarantor	(0.5		)	—		(5.1		)	5.1			—			(0.5		)
Net cash provided by (used in) financing activities	(24.5		)	—		(31.0		)	4.8			24.0			(26.7		)
Net (decrease) increase in cash and cash equivalents	—			—		(102.0		)	2.5			—			(99.5		)
Cash and cash equivalents at beginning of period	—			—		146.8			2.0			—			148.8
Cash and cash equivalents at end of period	$	—		$	—	$	44.8		$	4.5		$	—		$	49.3

(dollars in millions)	Period Ended June 30, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(9.6	)	$	—	$	7.7		$	(1.9	)	$	(5.8	)	$	(9.6	)
Partnership (income) loss related to investment in subsidiaries	(7.7		)	—		1.9			—			5.8			—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	—			—		38.1			1.3			—			39.4
Noncash interest expense	2.0			—		(1.0		)	—			—			1.0
Stock-based compensation expense	—			—		3.0			—			—			3.0
Loss on extinguishment of debt	—			—		1.3			—			—			1.3
Change in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		10.4			(0.4		)	—			10.0
Accounts payable and accrued expenses	15.2			—		(34.7		)	0.4			—			(19.1		)
Deferred revenues	—			—		(3.1		)	(0.1		)	—			(3.2		)
Due to affiliates	—			—		16.7			—			—			16.7
Net cash (used in) provided by operating activities	(0.1		)	—		40.3			(0.7		)	—			39.5
Cash flows from investing activities:
Capital expenditures - acquisitions of real estate	—			—		(26.6		)	—			—			(26.6		)
Capital expenditures - other development	—			—		(66.9		)	(0.1		)	—			(67.0		)
Release of restricted cash	—			—		4.4			—			—			4.4
Investment in subsidiaries	(337.1		)	—		—			—			337.1			—
Advances to affiliate	—			—		(0.1		)	0.1			—			—
Net cash used in investing activities	(337.1		)	—		(89.2		)	—			337.1			(89.2		)
Cash flows from financing activities:
Issuance of partnership units	337.1			—		—			—			—			337.1
Distributions paid	—			—		(10.3		)	—			—			(10.3		)
Payments on capital leases and other financing arrangements	—			—		(2.0		)	(0.5		)	—			(2.5		)
Payments to buyout capital leases	—			—		(9.6		)	—			—			(9.6		)
Payments to buyout other financing arrangement	—			—		(10.2		)	—			—			(10.2		)
Contribution from parent guarantor	—			—		335.4			1.7			(337.1		)	—
Net cash provided by financing activities	337.1			—		303.3			1.2			(337.1		)	304.5
Net (decrease) increase in cash and cash equivalents	(0.1		)	—		254.4			0.5			—			254.8
Cash and cash equivalents at beginning of period	0.1			—		11.2			1.0			—			12.3
Cash and cash equivalents at end of period	$	—		$	—	$	265.6		$	1.5		$	—		$	267.1

(dollars in millions)	Period Ended January 23, 2013
	LP Co-issuer			Finance Co-issuer		Guarantors			Non- Guarantors			Eliminations			Total
Cash flows from operating activities:
Net (loss) income	$	(20.2	)	$	—	$	(17.9	)	$	(0.1	)	$	18.0		$	(20.2	)
Partnership loss (income) related to investment in subsidiaries	17.9			—		0.1			—			(18.0		)	—
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities	0.2			—		5.6			0.1			—			5.9
Changes in operating assets and liabilities, net of effects of acquisitions:
Rent receivables and other assets	—			—		(9.6		)	—			—			(9.6		)
Accounts payable and accrued expenses	2.1			—		18.4			—			—			20.5
Due to affiliates	—			—		1.5			—			—			1.5
Other changes in assets and liabilities	—			—		3.8			0.1			—			3.9
Net cash provided by operating activities	—			—		1.9			0.1			—			2.0
Cash flows from investing activities:
Capital expenditures - other development	—			—		(7.7		)	—			—			(7.7		)
Release of restricted cash	—			—		1.9			—			—			1.9
Intercompany advances	0.1			—		(0.1		)	—			—			—
Net cash provided by (used in) investing activities	0.1			—		(5.9		)	—			—			(5.8		)
Cash flows from financing activities:
Payments on capital lease obligations	—			—		(0.6		)	—			—			(0.6		)
Contributions from parent, net	—			—		0.2			—			—			0.2
Net cash used in financing activities	—			—		(0.4		)	—			—			(0.4		)
Net increase (decrease) in cash and cash equivalents	0.1			—		(4.4		)	0.1			—			(4.2		)
Cash and cash equivalents at beginning of period	—			—		15.6			0.9			—			16.5
Cash and cash equivalents at end of period	$	0.1		$	—	$	11.2		$	1.0		$	—		$	12.3

XML

Noncontrolling Interest (Tables)

6 Months Ended

Jun. 30, 2014

Noncontrolling Interest [Abstract]

Schedule of Ownership Interests in Operating Partnership

The following table shows the ownership interest as of June 30, 2014 and 2013 and the portion of net income (loss) and distributions for the six months ended June 30, 2014 and period ended June 30, 2013:

(dollars in millions, except per unit amount)	June 30, 2014				June 30, 2013
	The Company		CBI		The Company		CBI
Operating partnership units	38.7		26.6		22.1		42.6
Ownership %	59.2	%	40.8	%	34.2	%	65.8	%
Portion of net loss	(0.9	)	(2.0	)	(3.2	)	(6.4	)
Distributions	(12.9	)	(14.5	)	(6.5	)	(14.1	)

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Loss per Share - Computation of Basic and Diluted Loss Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2013 Successor [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2014 Restricted Shares [Member]	Jun. 30, 2013 Restricted Shares [Member]	Jun. 30, 2014 Operating Partnership Units [Member]	Jun. 30, 2013 Operating Partnership Units [Member]
Numerator:
Net loss attributed to common shareholders	$ (1.1)	$ (2.3)	$ (3.2)	$ (0.9)
Less: Restricted stock dividends	(0.2)	(0.2)	(0.3)	(0.4)
Net loss available to shareholders	$ (1.3)	$ (2.5)	$ (3.5)	$ (1.3)
Denominator:
Weighted average common outstanding - basic (in shares)	21.7	20.9	20.9	21.3
Time-based restricted stock (in shares)		0	0	0
Convertible securities (in shares)		0	0	0
Weighted average shares outstanding- diluted (in shares)	21.7	20.9	20.9	21.3
EPS:
Net loss per share- basic (in dollars per share)	$ (0.06)	$ (0.12)	$ (0.17)	$ (0.06)
Effect of dilutive shares:
Loss per share - diluted (in dollars per share)	$ (0.06)	$ (0.12)	$ (0.17)	$ (0.06)
Anti-dilutive securities excluded from diluted earning per share					0.8	0.2	42.1	42.6

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Condensed Consolidated Statement of Equity / Partnership Capital (USD $) In Millions, except Share data, unless otherwise specified	Total USD ($)	Additional Paid In Capital USD ($)	Non- controlling Interest USD ($)	Predecessor [Member] USD ($)	Predecessor [Member] CyrusOne LP [Member] USD ($)	Predecessor [Member] Common Stock Issued USD ($)	Predecessor [Member] Additional Paid In Capital USD ($)	Predecessor [Member] Accumulated Deficit USD ($)	Predecessor [Member] Partnership Capital USD ($)	Predecessor [Member] Total Shareholders' Equity/ Parent’s Net Investment USD ($)	Predecessor [Member] Non- controlling Interest USD ($)	Successor [Member] USD ($)	Successor [Member] CyrusOne LP [Member] USD ($)	Successor [Member] Common Stock Issued USD ($)	Successor [Member] Additional Paid In Capital USD ($)	Successor [Member] Accumulated Deficit USD ($)	Successor [Member] Partnership Capital USD ($)	Successor [Member] Total Shareholders' Equity/ Parent’s Net Investment USD ($)	Successor [Member] Non- controlling Interest USD ($)	Successor [Member] Partnership Units CyrusOne LP [Member]	Successor [Member] Partnership Capital [Member] CyrusOne LP [Member] USD ($)
Beginning Balance at Dec. 31, 2012				$ 500.1		$ 0	$ 7.1	$ 0	$ 493.0	$ 500.1	$ 0
Beginning Balance (in shares) at Dec. 31, 2012						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)				(20.2)	(20.2)				(20.2)	(20.2)
Other contributions from Parent				1.3					1.3	1.3
Contributions from Parent—Transaction compensation expense reimbursement				19.6					19.6	19.6
Noncontrolling interest effective				0			(7.1)		(493.7)	(500.8)	500.8
Common stock issued				337.1		0.2	336.9			337.1
Common stock issued (in shares)						19,000,000
Common stock issued to CBI in exchange for operating partnership units				0
Common stock issued to CBI in exchange for operating partnership units (in shares)						1,500,000
Common stock issued to CBI in exchange for settlement of IPO costs paid by CBI				0			7.1			7.1	(7.1)
Common stock issued to CBI in exchange for settlement of IPO costs paid by CBI (in shares)						400,000
Stock issuance costs				(9.5)			(9.5)			(9.5)
Restricted shares issued (in shares)				0
Restricted shares issued						1,200,000
Ending Balance at Jan. 23, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)												(9.6)	(9.6)			(9.6)		(9.6)
Noncontrolling interest allocated net loss	0											6.4				6.4		6.4	(6.4)
Restricted shares issued under long-term incentive plan												3.0			3.0			3.0
Dividends, $0.32 and $0.42 per share												(20.6)				(6.5)		(6.5)	(14.1)
Ending Balance at Jun. 30, 2013												801.2		0.2	337.5	(9.7)	0	328.0	473.2
Ending Balance (in shares) at Jun. 30, 2013														22,100,000
Beginning Balance at Mar. 31, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)												(6.8)	(6.8)
Noncontrolling interest allocated net loss												4.5
Ending Balance at Jun. 30, 2013												801.2		0.2			0
Ending Balance (in shares) at Jun. 30, 2013														22,100,000
Beginning Balance at Dec. 31, 2013												777.6	777.6	0.2	340.7	(18.9)	0	322.0	455.6		777.6
Beginning Balance (in shares) at Dec. 31, 2013														22,000,000						64,600,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)												(2.9)	(2.9)			(2.9)		(2.9)	0
Common stock issued												355.9		0.2	355.7			355.9
Common stock issued (in shares)														16,000,000
Stock issuance costs												(1.3)			(1.3)			(1.3)
Restricted shares issued (in shares)												0
Restricted shares issued														700,000
Noncontrolling interest allocated net loss												2.0				2.0		2.0	(2.0)
Restricted shares issued under long-term incentive plan												5.0			5.0			5.0
Redemption of noncontrolling interest		(189.0)	(166.9)									(355.9)			(189.0)			(189.0)	(166.9)
Dividends, $0.32 and $0.42 per share												(27.4)				(12.9)		(12.9)	(14.5)
Ending Balance at Jun. 30, 2014												751.0	751.0	0.4	511.1	(32.7)	0	478.8	272.2
Ending Balance (in shares) at Jun. 30, 2014														38,700,000
Beginning Balance at Mar. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)												(3.6)	(3.6)								(2.9)
Common stock issued (in shares)																				700,000
Noncontrolling interest allocated net loss												2.5
Restricted shares issued under long-term incentive plan																					5.0
Partnership units purchased by CyrusOne Inc.																					355.9
Partnership units purchased by CyrusOne Inc. (in shares)																				16,000,000
Partnership units sold by CBI																					(355.9)
Partnership units sold by CBI (in shares)																				(16,000,000)
Distributions to CyrusOne Inc.																					(1.3)
Dividends, $0.32 and $0.42 per share																					(27.4)
Ending Balance at Jun. 30, 2014												$ 751.0	$ 751.0				$ 0				$ 751.0
Ending Balance (in shares) at Jun. 30, 2014																				65,300,000

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Basis of Presentation

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying financial statements as of June 30, 2014 and December 31, 2013, and for the three and six months ended June 30, 2014 and for the three months ended June 30, 2013 and for the period from January 24, 2013 to June 30, 2013, are prepared on a consolidated basis and are presented as the “Successor” financial statements. The financial statements for the period from January 1, 2013 to January 23, 2013 ("Predecessor Period") were prepared on a combined basis using CBI’s historical basis in the assets and liabilities of its data center business and are presented as the “Predecessor” financial statements. The Predecessor financial statements include all revenues, costs, assets and liabilities directly attributable to the data center business. In addition, certain expenses reflected in the Predecessor financial statements include allocations of corporate expenses from CBI, which in the opinion of management are reasonable but do not necessarily reflect what CyrusOne’s financial position, results of operations and cash flows would have been had CyrusOne been a stand-alone company during these respective periods. As a result, the Predecessor financial information is not necessarily indicative of CyrusOne’s future results of operations, financial position and cash flows.

In addition, the accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and should be read in conjunction with the financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2013, which was filed with the Securities and Exchange Commission (“SEC”) on March 3, 2014. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been omitted from this report on Form 10-Q pursuant to the rules and regulations of the SEC.

It should also be noted that the results for the interim periods shown in this report are not necessarily indicative of future financial results and have not been audited by our independent registered public accounting firm. In the opinion of management, the accompanying unaudited condensed consolidated and combined financial statements include all adjustments necessary to present fairly our financial position as of June 30, 2014, and our results of operations, for the three and six months ended June 30, 2014, and the three months ended June 30, 2013 and the periods ended June 30, 2013 (January 24, 2013 to June 30, 2013) and January 23, 2013 (January 1, 2013 to January 23, 2013).  These adjustments are of a normal recurring nature and consistent with the adjustments recorded to prepare the annual audited financial statements as of December 31, 2013.

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Loss per Share (Tables)

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Loss per Share

The following table reflects the computation of basic and diluted net loss per share for the three and six months ended June 30, 2014 and for the three months and the period ended June 30, 2013:

	Three Months Ended						Three Months Ended						Six Months Ended						Period Ended
	June 30, 2014						June 30, 2013						June 30, 2014						June 30, 2013
(dollars in millions, except per share amount)	Basic			Diluted			Basic			Diluted			Basic			Diluted			Basic			Diluted
Numerator:
Net loss attributed to common shareholders	$	(1.1	)	$	(1.1	)	$	(2.3	)	$	(2.3	)	$	(0.9	)	$	(0.9	)	$	(3.2	)	$	(3.2	)
Less: Restricted stock dividends	(0.2		)	(0.2		)	(0.2		)	(0.2		)	(0.4		)	(0.4		)	(0.3		)	(0.3		)
Net loss available to shareholders	$	(1.3	)	$	(1.3	)	$	(2.5	)	$	(2.5	)	$	(1.3	)	$	(1.3	)	$	(3.5	)	$	(3.5	)
Denominator:
Weighted average common outstanding-basic	21.7			21.7			20.9			20.9			21.3			21.3			20.9			20.9
Performance-based restricted stock(1)(2)				—						—						—						—
Convertible securities(1)(2)				—						—						—						—
Weighted average shares outstanding-diluted				21.7						20.9						21.3						20.9
EPS:
Net loss per share-basic	$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)
Effect of dilutive shares:
Net loss per share-diluted				$	(0.06	)				$	(0.12	)				$	(0.06	)				$	(0.17	)

⁽¹⁾ We have excluded 0.8 million of restricted stock, and 42.1 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2014, as these securities were deemed anti-dilutive.

⁽²⁾ We have excluded 0.2 million of restricted stock, and 42.6 million of Operating Partnership units, which are securities that became convertible into common stock in January 2014, from our diluted earnings per share as of June 30, 2013, as these securities were deemed anti-dilutive.

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Noncontrolling Interest Schedule of Noncontrolling Interest (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014
Noncontrolling Interest [Line Items]
Portion of net loss			$ 0
Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss	(1.1)	(2.3)	(3.2)	(0.9)
Portion of net loss	(2.5)	(4.5)	(6.4)	(2.0)
Distributions			20.6	27.4
Total Shareholders' Equity/ Parent’s Net Investment
Noncontrolling Interest [Line Items]
Operating partnership units	38.7	22.1	22.1	38.7
Ownership %	59.20%	34.20%	34.20%	59.20%
Total Shareholders' Equity/ Parent’s Net Investment | Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss			(6.4)	(2.0)
Distributions			6.5	12.9
Non- controlling Interest
Noncontrolling Interest [Line Items]
Operating partnership units	26.6	42.6	42.6	26.6
Ownership %	40.80%	65.80%	65.80%	40.80%
Non- controlling Interest | Successor [Member]
Noncontrolling Interest [Line Items]
Portion of net loss			6.4	2.0
Distributions			$ 14.1	$ 14.5

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Income Taxes

6 Months Ended

Jun. 30, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

CyrusOne Inc. will elect to be taxed as a REIT under the Code by making our REIT election upon the filing of our 2013 federal income tax return. To qualify as a REIT, we are required to distribute at least 90% of our taxable income to our stockholders and meet various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided we qualify for taxation as a REIT, we are generally not subject to corporate level federal income tax on the earnings distributed currently to our shareholders. It is our policy and intent, subject to change, to distribute 100% of our taxable income and therefore no provision is required in the accompanying financial statements for federal income taxes with regards to activities of CyrusOne Inc. and its subsidiary pass-through entities.

We have elected to designate two subsidiaries as taxable REIT subsidiaries (each a “TRS”). A TRS may perform services for our tenants that would otherwise be considered impermissible for REITs. The income generated from these services is taxed at federal and state corporate rates. While CyrusOne Inc. and the Operating Partnership do not pay federal income taxes, we are still subject to foreign, state, and local income taxes in the locations in which we conduct business.Income tax expense for the three and six months ended June 30, 2014, was $0.3 million and $0.7 million, respectively, and $0.3 million and $0.9 million for the comparable periods in 2013.

In conjunction with the Company’s tax sharing arrangement with CBI, CBI may be required to file Texas margin tax returns on a consolidated, combined or unitary basis with the Company for any given year.   If such return is prepared by CBI on a combined or consolidated basis to include the Company, the related Texas margin tax of the Company will be paid by CBI. The Company will then reimburse CBI for its portion of the related Texas margin tax. The Texas margin tax payable was $1.8 million as of June 30, 2014 and $1.4 million as of December 31, 2013. Effective June 26, 2014, CBI’s ownership percentage in the Operating Partnership was reduced to below 50 percent. As a result, the Company will file its own Texas margin tax return and therefore, reimbursements to CBI by the Company will no longer be necessary.

For certain entities we calculate deferred tax assets and liabilities for temporary differences in the basis between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred tax assets depends upon our ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards. Deferred tax assets (net of valuation allowance) and liabilities were accrued, as necessary, for the periods ended June 30, 2014 and December 31, 2013. As of June 30, 2014, we had a total net deferred tax asset balance of $3.7 million that was offset by a valuation allowance of $3.7 million. As of December 31, 2013, we had a total net deferred tax asset balance of $3.6 million that was offset by a valuation allowance of $3.6 million.