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Capital and Accumulated Other Comprehensive Loss | 3 Months Ended
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Mar. 31, 2018
Digital Realty Trust, L.P. |
Class of Stock [Line Items] |
Capital and Accumulated Other Comprehensive Loss | Capital and Accumulated Other Comprehensive Loss (a) Allocations of Net Income and Net Losses to Partners Except for special allocations to holders of profits interest units described below in Note 13(a) under the heading “Incentive Plan—Long-Term Incentive Units,” the Operating Partnership’s net income will generally be allocated to Digital Realty Trust, Inc. (the General Partner) to the extent of the accrued preferred return on its preferred units, and then to the General Partner and the Operating Partnership’s limited partners in accordance with the respective percentage interests in the common units issued by the Operating Partnership. Net loss will generally be allocated to the General Partner and the Operating Partnership’s limited partners in accordance with the respective common percentage interests in the Operating Partnership until the limited partner’s capital is reduced to zero and any remaining net loss would be allocated to the General Partner. However, in some cases, losses may be disproportionately allocated to partners who have guaranteed our debt. The allocations described above are subject to special allocations relating to depreciation deductions and to compliance with the provisions of Sections 704(b) and 704(c) of the Code, and the associated Treasury Regulations. (b) Partnership Units Limited partners have the right to require the Operating Partnership to redeem part or all of their common units for cash based on the fair market value of an equivalent number of shares of the General Partner’s common stock at the time of redemption. Alternatively, the General Partner may elect to acquire those common units in exchange for shares of the General Partner’s common stock on a one-for-one basis, subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to authoritative accounting guidance, Digital Realty Trust, Inc. evaluated whether it controls the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the share settlement of the noncontrolling Operating Partnership common and incentive units. Based on the results of this analysis, we concluded that the common units and incentive units of the Operating Partnership met the criteria to be classified within capital, except for certain common units issued to certain former DFT Operating Partnership unitholders in the DFT Merger, which are subject to certain restrictions and, accordingly, are not presented as permanent capital in the condensed consolidated balance sheet. In connection with the initial public offering of DFT in 2007, DFT, the DFT Operating Partnership and certain DFT Operating Partnership unitholders entered into a tax protection agreement to assist such unitholders in deferring certain U.S. federal income tax liabilities that may have otherwise resulted from the contribution transactions undertaken in connection with the initial public offering and the ownership of interests in the DFT Operating Partnership and to set forth certain agreements with respect to other tax matters. In connection with the DFT Merger, certain DFT Operating Partnership unitholders entered into a new tax protection agreement with Digital Realty Trust, Inc. and the Operating Partnership that replaced and superseded the DFT tax protection agreement, effective as of the closing of the DFT Merger. Pursuant to the new tax protection agreement, such DFT Operating Partnership unitholders entered into a guarantee of certain debt of a subsidiary of the Operating Partnership. The Operating Partnership must offer such DFT Operating Partnership unitholders a new guarantee opportunity in the event any guaranteed debt is repaid prior to March 1, 2023. If the Operating Partnership fails to offer the guarantee opportunity or to allocate guaranteed debt to any such DFT Operating Partnership unitholder as required under the new tax protection agreement, the Operating Partnership generally would be required to indemnify each such DFT Operating Partnership unitholder for the tax liability resulting from such failure, as determined under the new tax protection agreement. The redemption value of the limited partners’ common units and the vested incentive units was approximately $889.0 million and $887.0 million based on the closing market price of Digital Realty Trust, Inc.’s common stock on March 31, 2018 and December 31, 2017, respectively. (c) Distributions All distributions on the Operating Partnership’s units are at the discretion of Digital Realty Trust, Inc.’s board of directors. The Operating Partnership has declared and paid the following distributions on its common and preferred units for the three months ended March 31, 2018 (in thousands, except for per unit data):
Date distribution declared | Distribution payment date |  | Series C Preferred Units |  | Series G Preferred Units |  | Series H Preferred Units |  | Series I Preferred Units |  | Series J Preferred Units |  | Common Units
March 1, 2018 | March 30, 2018 |  | $ | 3,333 |  |  | $ | 3,672 |  |  | $ | 6,730 |  |  | $ | 3,969 |  |  | $ | 2,625 |  |  | $ | 216,953 |
Annual rate of distribution per unit |  |  | $ | 1.65625 |  |  | $ | 1.46875 |  |  | $ | 1.84375 |  |  | $ | 1.58750 |  |  | $ | 1.31250 |  |  | $ | 4.04000 |
(d) Accumulated Other Comprehensive Loss The accumulated balances for each item within other comprehensive income are as follows (in thousands):
| Foreign currency translation adjustments |  | Cash flow hedge adjustments |  | Foreign currency net investment hedge adjustments |  | Accumulated other comprehensive loss
Balance as of December 31, 2017 | $ | (151,795 | ) |  | $ | 12,758 |  |  | $ | 26,152 |  |  | $ | (112,885 | )
Net current period change | (3,743 | ) |  | 8,616 |  |  | — |  |  | 4,873 |
Reclassification to interest expense from interest rate swaps | — |  |  | (235 | ) |  | — |  |  | (235 | )
Balance as of March 31, 2018 | $ | (155,538 | ) |  | $ | 21,139 |  |  | $ | 26,152 |  |  | $ | (108,247 | )

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- Definition The entire disclosure for the formation, structure, control and ownership of the partnership. Disclosures related to accounts comprising partners' capital. Includes balances of general partners' capital account, limited partners' capital account, preferred partners' capital account and total partners' capital account and units outstanding; accumulated other comprehensive income; amount and nature of changes to amount of partner's capital and units outstanding by class, rights and privileges for each class of units; distribution policies and distributions paid by unit class; impact of and correction of an error in previously issued financial statements; limitations of partners' liability; redemption, conversion and distribution policies; and deferred compensation related to the issuance of units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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