Douglas Emmett (DEI) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

DEI_XBRL_Filing_Information

DEI XBRL Filing Information	3 Months Ended
	Mar. 31, 2015	1-May-15
Document And Entity Information [Abstract]
Entity Registrant Name	Douglas Emmett Inc
Entity Central Index Key	1364250
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		145,862,757

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Assets
Land	$924,965	$900,813
Buildings and improvements	5,682,768	5,590,118
Tenant improvements and lease intangibles	691,025	666,672
Investment in real estate, gross	7,298,758	7,157,603
Less: accumulated depreciation and amortization	-1,580,991	-1,531,157
Investment in real estate, net	5,717,767	5,626,446
Cash and cash equivalents	16,639	18,823
Tenant receivables, net	1,820	2,143
Deferred rent receivables, net	77,222	74,997
Acquired lease intangible assets, net	5,238	3,527
Investment in unconsolidated real estate funds	168,870	171,390
Other assets	25,249	57,270
Total assets	6,012,805	5,954,596
Liabilities
Secured notes payable and revolving credit facility	3,503,466	3,435,290
Interest payable, accounts payable and deferred revenue	63,140	54,364
Security deposits	36,441	37,450
Acquired lease intangible liabilities, net	38,661	45,959
Interest rate contracts	35,275	37,386
Dividends payable	30,631	30,423
Total liabilities	3,707,614	3,640,872
Douglas Emmett, Inc. stockholders' equity:
Common Stock, $0.01 par value 750,000,000 authorized, 145,859,001 and 144,869,101 outstanding at March 31, 2015 and December 31, 2014, respectively	1,459	1,449
Additional paid-in capital	2,692,020	2,678,798
Accumulated other comprehensive income (loss)	-29,404	-30,089
Accumulated deficit	-718,632	-706,700
Total Douglas Emmett, Inc. stockholders' equity	1,945,443	1,943,458
Noncontrolling interests	359,748	370,266
Total equity	2,305,191	2,313,724
Total liabilities and equity	$6,012,805	$5,954,596

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets Parenthetical (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, par value (usd per share)	$0.01	$0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares outstanding	145,859,001	144,869,101

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Office rental
Rental revenues	$100,651	$98,613
Tenant recoveries	10,150	10,907
Parking and other income	20,655	19,567
Total office revenues	131,456	129,087
Multifamily rental
Rental revenues	21,644	18,310
Parking and other income	1,709	1,479
Total multifamily revenues	23,353	19,789
Total revenues	154,809	148,876
Operating Expenses
Office expense	44,199	43,356
Multifamily expense	5,820	5,133
General and administrative	7,361	6,811
Depreciation and amortization	49,834	50,199
Total operating expenses	107,214	105,499
Operating income	47,595	43,377
Other income	8,559	4,287
Other expenses	-1,572	-1,453
Income, including depreciation, from unconsolidated real estate funds	1,443	1,113
Interest expense	-33,639	-31,838
Acquisition-related expenses	-290	-28
Net income	22,096	15,458
Less: Net income attributable to noncontrolling interests	-3,397	-2,482
Net income attributable to common stockholders	$18,699	$12,976
Net income attributable to common stockholders per share b basic (usd per share)	$0.13	$0.09
Net income attributable to common stockholders per share b diluted (usd per share)	$0.12	$0.09
Dividends declared per common share (usd per share)	$0.21	$0.20

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$22,096	$15,458
Other comprehensive income: cash flow hedges	1,018	5,451
Comprehensive income	23,114	20,909
Less comprehensive income attributable to noncontrolling interests	-3,730	-3,781
Comprehensive income attributable to common stockholders	$19,384	$17,128

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net income	$22,096	$15,458
Adjustments to reconcile net income to net cash provided by operating activities:
Income, including depreciation, from unconsolidated real estate funds	-1,443	-1,113
Gain from insurance recoveries for damage to real estate	0	-2,485
Depreciation and amortization	49,834	50,199
Net accretion of acquired lease intangibles	-9,800	-3,551
Increase in the allowance for doubtful accounts	78	12
Amortization of deferred loan costs	1,773	1,000
Non-cash market value adjustments on interest rate contracts	0	21
Non-cash amortization of equity compensation	1,947	1,364
Operating distributions from unconsolidated real estate funds	286	250
Change in working capital components:
Tenant receivables	458	266
Deferred rent receivables	-2,438	-1,565
Interest payable, accounts payable and deferred revenue	9,719	12,204
Security deposits	-1,009	102
Other assets	1,425	1,273
Net cash provided by operating activities	72,926	73,435
Investing Activities
Capital expenditures for improvements to real estate	-20,526	-20,246
Capital expenditures for developments	-667	-726
Insurance recoveries for damage to real estate	0	700
Property acquisition	-89,906	0
Note receivable	0	-27,500
Proceeds from repayment of note receivable	1,000	0
Loan payments received from related party	307	299
Capital distributions from unconsolidated real estate funds	2,060	2,744
Net cash used in investing activities	-107,732	-44,729
Financing Activities
Proceeds from borrowings	102,400	0
Deferred loan cost payments	-960	-82
Repayment of borrowings	-34,224	-20,500
Contributions by noncontrolling interests	0	250
Distributions to noncontrolling interests	-5,995	-5,958
Repurchase of stock options	0	-2,854
Repurchase of operating partnership units	0	-2,827
Cash dividends to common stockholders	-30,422	-28,521
Exercise of stock options	1,823	0
Net cash provided by (used in) financing activities	32,622	-60,492
Decrease in cash and cash equivalents	-2,184	-31,786
Cash and cash equivalents at beginning of period	18,823	44,206
Cash and cash equivalents at end of period	16,639	12,420
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest (net of capitalized interest of $166 and $58 for the three months ended March 31, 2015 and 2014, respectively)	31,478	30,806
Write-off of fully accreted below-market acquired lease intangible liability	10,040	0
Settlement of note receivable in exchange for land and building acquired	26,500	0
Issuance of operating partnership units in exchange for land and building acquired	1,000	0
Application of deposit to purchase price of property	2,500	0
Accrual for dividends payable to common stockholders	30,631	28,735
Operating Partnership units redeemed with shares of the Company's common stock	$11,408	$14,384

Consolidated_Statements_Of_Cas1

Consolidated Statements Of Cash Flows Consolidated Statements of Cash Flows (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Cash Flows [Abstract]
Capitalized interest paid	$166	$58

Overview

Overview	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Overview	Overview
	Organization and Description of Business
	Douglas Emmett, Inc. is a fully integrated, self-administered and self-managed Real Estate Investment Trust (REIT). We are one of the largest owners and operators of high-quality office and multifamily properties in Los Angeles County, California and Honolulu, Hawaii. We focus on owning and acquiring a substantial share of top-tier office properties and premier multifamily communities in neighborhoods that possess significant supply constraints, high-end executive housing and key lifestyle amenities.
	Through our interest in Douglas Emmett Properties, LP (our operating partnership) and its subsidiaries, as well as our investment in our institutional unconsolidated real estate funds (Funds), we own or partially own, manage, lease, acquire and develop real estate, consisting primarily of office and multifamily properties in Los Angeles County, California and Honolulu, Hawaii. As of March 31, 2015, we owned a consolidated portfolio of fifty-four office properties (including ancillary retail space) and ten multifamily properties, as well as the fee interests in two parcels of land subject to ground leases from which we earn ground rent income. Alongside our consolidated portfolio, we also manage and own equity interests in our Funds which, at March 31, 2015, owned eight additional office properties, for a combined sixty-two office properties in our total portfolio.
	The terms "us," "we" and "our" as used in these financial statements refer to Douglas Emmett, Inc. and its subsidiaries.
	Basis of Presentation
	The accompanying consolidated financial statements as of March 31, 2015 and December 31, 2014, and for the three months ended March 31, 2015 and 2014, are the consolidated financial statements of Douglas Emmett, Inc. and its subsidiaries, including our operating partnership.  All significant intercompany balances and transactions have been eliminated in our consolidated financial statements, and certain prior period amounts have been reclassified to conform with the current period presentation.
	The accompanying unaudited interim financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC).  Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States (GAAP) may have been condensed or omitted pursuant to SEC rules and regulations, although we believe that the disclosures are adequate to make their presentation not misleading.  The accompanying unaudited financial statements include, in our opinion, all adjustments, consisting of normal recurring adjustments, necessary to present fairly the financial information set forth therein.  The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2015.  The interim financial statements should be read in conjunction with the consolidated financial statements in our 2014 Annual Report on Form 10-K and the notes thereto.  Any references in this report to the number of properties, square footage and geography, are outside the scope of our independent registered public accounting firm’s review of our financial statements, in accordance with the standards of the United States Public Company Accounting Oversight Board (PCAOB).

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	Summary of Significant Accounting Policies
	During the period covered by this report, we have not made any material changes to our significant accounting policies included in our 2014 Annual Report on Form 10-K.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates.
	Income Taxes
	We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended. Provided that we qualify for taxation as a REIT, we are generally not subject to corporate-level income tax on the earnings distributed currently to our stockholders that we derive from our REIT qualifying activities. We are subject to corporate-level tax on the earnings that we derive through our taxable REIT subsidiaries (TRS).
	Recently Issued Accounting Literature
	Changes to GAAP are established by the Financial Accounting Standards Board (FASB) in the form of Accounting Standard Updates (ASUs).  We consider the applicability and impact of all ASUs.
	In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (Topics 205 and 360), which provides guidance for reporting discontinued operations. The amendments in this ASU change the requirements for reporting discontinued operations in Subtopic 205-20, Presentation of Financial Statements. The ASU is effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2014, which for us would be the first quarter of 2015. We adopted the ASU during the first quarter of 2015 and it did not have a material impact on our financial position or results of operations.
	In March 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest (Subtopic 835-30), which provides guidance on the presentation of debt issuance costs. To simplify the presentation of debt issuance costs, the amendments in this Update would require that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the related debt, consistent with the manner in which debt discounts or premiums would be presented. This ASU is the final version of Proposed ASU 2014-250-Interest-Imputation of Interest (Subtopic 835-30), which has been deleted. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, which for us would be the first quarter of 2016, and early adoption is permitted. The ASU requires that the new presentation of debt issuance costs be applied on a retrospective basis. The change in presentation is required to be disclosed as a change in accounting principle. We do not expect the ASU to have a material impact on our financial position or results of operations.
	The FASB has not issued any other ASUs during 2015 that we expect to be applicable and have a material impact on our future financial position or results of operations.

Investment_in_Real_Estate

Investment in Real Estate	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Investment in Real Estate	Investment in Real Estate
	2015 Acquisitions
	During the first quarter of 2015, we made two acquisitions: (i) on March 5, 2015, we purchased a 227,000 square foot Class A multi-tenant office property (First Financial Plaza), located in Encino, California, for $92.4 million, or approximately $407 per square foot, and (ii) on February 12, 2015, we acquired the land (Harbor Court Land) under one of our office buildings for $27.5 million, see Notes 5 and 13. We recognized $6.6 million of accretion of an above-market ground lease related to the purchase of the Harbor Court Land, which is included in other income in the consolidated statement of operations, see Note 4. The results of operations for these acquisitions are included in our consolidated statements of operations after the respective date of their acquisitions.
	The table below (in thousands) summarizes our preliminary purchase price allocations for the acquisitions (these allocations are subject to adjustments within twelve months of the acquisition date):
		Harbor Court Land		First Financial Plaza
	Investment in real estate:
	Land	$	12,060	$	12,092
	Buildings and improvements	15,440		75,039
	Tenant improvements and lease intangibles	—		6,065
	Acquired above and below-market leases, net	—		(790		)
	Net assets and liabilities acquired	$	27,500	$	92,406
	2014 Acquisitions
	We did not acquire any properties during the first quarter of 2014.

Acquired_Lease_Intangibles

Acquired Lease Intangibles	3 Months Ended
	Mar. 31, 2015
Acquired Lease Intangibles [Abstract]
Acquired Lease Intangibles	Acquired Lease Intangibles
	The following summarizes our acquired lease intangibles related to above/below-market leases (in thousands) as of:
		March 31, 2015			December 31, 2014
	Above-market tenant leases(1)	$	4,883		$	3,040
	Accumulated amortization(2)	(2,195		)	(2,082		)
	Below-market ground leases	3,198			3,198
	Accumulated amortization(3)	(648		)	(629		)
	Acquired lease intangible assets, net	$	5,238		$	3,527
	Below-market tenant leases(1)	$	140,721		$	138,088
	Accumulated accretion(2)	(105,655		)	(102,335		)
	Above-market ground leases(4)	6,160			16,200
	Accumulated accretion(3)(4)	(2,565		)	(5,994		)
	Acquired lease intangible liabilities, net	$	38,661		$	45,959
	________________________________________________
	-1	Includes leases from an office property that we purchased in the first quarter of 2015. See Note 3.
	-2	Net accretion of above- and below-market tenant leases recorded as an increase to rental income totaled $3.2 million and $3.5 million for the three months ended March 31, 2015 and 2014, respectively.
	-3	Net accretion of above- and below-market ground leases recorded as a decrease to office rental operating expense totaled $13 thousand and $45 thousand for three months ended March 31, 2015 and 2014, respectively. Net amortization of above- and below-market ground leases recorded as a decrease to rental income totaled $19 thousand and $15 thousand for the three months ended March 31, 2015 and 2014, respectively.
	-4	In the first quarter of 2015, we recognized an additional $6.6 million of accretion for an above-market ground lease in other income related to the purchase of the Harbor Court Land (see Note 3) and removed the cost and accumulated accretion of $10.0 million for that ground lease from our balance sheet.

Other_Assets

Other Assets	3 Months Ended
	Mar. 31, 2015
Other Assets [Abstract]
Other Assets	Other Assets
	Other assets consisted of the following (in thousands) as of:
		March 31, 2015		December 31, 2014
	Deferred loan costs, net of accumulated amortization of $14,801 and $13,042 at March 31, 2015 and December 31, 2014, respectively (1)	$	14,810	$	15,623
	Note receivable(2)	—		27,500
	Restricted cash	194		194
	Prepaid expenses	5,216		6,108
	Other indefinite-lived intangible	1,988		1,988
	Deposits in escrow	—		2,500
	Other	3,041		3,357
	Total other assets	$	25,249	$	57,270
	__________________________________________________________________________________
	-1	Deferred loan cost amortization expense of $1.8 million and $1.0 million for the three months ended March 31, 2015 and March 31, 2014, respectively, is included in interest expense in our consolidated statements of operations.
	-2	On February 12, 2015, the owner of a fee interest related to one of our office buildings, to whom we previously loaned $27.5 million, repaid $1.0 million of the loan with cash, and then contributed the respective fee interest valued at $27.5 million to our operating partnership, subject to the remaining balance of that loan of $26.5 million, in exchange for 34,412 units in our operating partnership ("OP Units") valued at $1.0 million. See Notes 3 and 9.

Secured_Notes_Payable_and_Revo

Secured Notes Payable and Revolving Credit Facility	3 Months Ended
	Mar. 31, 2015
Secured Debt [Abstract]
Secured Notes Payable and Revolving Credit Facility	Secured Notes Payable and Revolving Credit Facility
	The following table summarizes (in thousands) our secured notes payable and revolving credit facility:
	Description(1)		Maturity		Outstanding Principal Balance as of March 31, 2015		Outstanding Principal Balance as of December 31, 2014		Variable Interest Rate	Effective	Swap Maturity Date
			Date							Annual
										Fixed Interest
										Rate (2)
	Term Loan		12/24/15		$	20,000	$	20,000	LIBOR + 1.45%	N/A	--
	Term Loan (3)		3/1/16		16,140		16,140		LIBOR + 1.60%	N/A	--
	Fannie Mae Loan		3/1/16		82,000		82,000		LIBOR + 0.62%	N/A	--
	Fannie Mae Loan		6/1/17		18,000		18,000		LIBOR + 0.62%	N/A	--
	Term Loan(4)		10/2/17		400,000		400,000		LIBOR + 2.00%	4.45%	7/1/15
	Term Loan		4/2/18		510,000		510,000		LIBOR + 2.00%	4.12%	4/1/16
	Term Loan		8/1/18		530,000		530,000		LIBOR + 1.70%	3.74%	8/1/16
	Term Loan (5)		8/5/18		355,000		355,000		N/A	4.14%	--
	Term Loan (6)		2/1/19		154,776		155,000		N/A	4.00%	--
	Term Loan (7)		6/5/19		285,000		285,000		N/A	3.85%	--
	Fannie Mae Loan		10/1/19		145,000		145,000		LIBOR + 1.25%	N/A	--
	Term Loan (8)		3/1/20	(9)	349,070		349,070		N/A	4.46%	--
	Fannie Mae Loans		11/2/20		388,080		388,080		LIBOR + 1.65%	3.65%	11/1/17
	Fannie Mae Loan		4/1/25		102,400		—		LIBOR + 1.25%	2.84%	3/1/20
	Aggregate loan principal				$	3,355,466	$	3,253,290
	Revolving credit line (10)		12/11/17		148,000		182,000		LIBOR + 1.40%	N/A	--
	Total (11)				$	3,503,466	$	3,435,290
	Aggregate effectively fixed rate loans				$	1,930,480	$	1,828,080		3.98%
	Aggregate fixed rate loans				1,143,846		1,144,070			4.15%
	Aggregate variable rate loans				429,140		463,140			N/A
	Total (11)				$	3,503,466	$	3,435,290
	______________________________________________________________________________________
	-1	As of March 31, 2015, (i) the weighted average remaining life (including extension options) of our outstanding term debt (excluding our revolving credit line) was 3.9 years and (ii) of the $3.07 billion of term debt on which the interest rate was fixed under the terms of the loan or a swap, (a) the weighted average remaining life was 4.0 years, the weighted average remaining period during which interest was fixed was 2.2 years, and the weighted average annual interest rate was 4.04% and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.16%. Except as otherwise noted below, each loan is secured by a separate collateral pool consisting of one or more properties, requiring monthly payments of interest only, with the outstanding principal due upon maturity.
	-2	Includes the effect of interest rate contracts as of March 31, 2015, and excludes amortization of prepaid loan fees. See Note 8 for the details of our interest rate contracts.
	-3	The borrower is a consolidated entity in which our operating partnership owns a two-thirds interest.
	-4	Subsequent to quarter end, we prepaid $140 million of this loan with a portion of the proceeds of a new $340 million term loan, which matures in April 2022, with interest at LIBOR + 1.4%, effectively fixed by a swap at 2.77% per annum until April 2020.
	-5	Interest-only until February 2016, with principal amortization thereafter based upon a 30-year amortization schedule.
	-6	Principal amortization based upon a 30-year amortization schedule.
	-7	Interest only until February 2017, with principal amortization thereafter based upon a 30-year amortization schedule.
	-8	Interest is fixed until March 1, 2018, and is floating thereafter, with interest-only payments until May 1, 2016, and principal amortization thereafter based upon a 30-year amortization schedule.
	-9	We have two one-year extension options which could extend the maturity to March 1, 2020 from March 1, 2018, subject to meeting certain conditions.
	-10	$300.0 million revolving credit facility secured by 3 separate collateral pools consisting of a total of 6 properties. Unused commitment fees range from 0.15% to 0.20%. We used the proceeds of the new term loan described in note 4 above to pay down the entire balance in April.
	-11	See Note 11 for our fair value disclosures.
	As of March 31, 2015, the minimum future principal payments due on our secured notes payable and revolving credit facility, excluding any maturity extension options, were as follows (in thousands):
	Twelve months ending March 31:
	2016	$	121,378
	2017	14,150
	2018	924,828
	2019	1,533,589
	2020	419,041
	Thereafter	490,480
	Total future principal payments	$	3,503,466

Interest_Payable_Accounts_Paya

Interest Payable, Accounts Payable and Deferred Revenue	3 Months Ended
	Mar. 31, 2015
Accounts Payable and Accrued Liabilities [Abstract]
Interest Payable, Accounts Payable and Deferred Revenue	Interest Payable, Accounts Payable and Deferred Revenue
	Interest payable, accounts payable and deferred revenue consisted of the following (in thousands) as of:
		March 31, 2015		December 31, 2014
	Interest payable	$	9,878	$	9,656
	Accounts payable and accrued liabilities	32,722		22,195
	Deferred revenue	20,540		22,513
	Total interest payable, accounts payable and deferred revenue	$	63,140	$	54,364

Derivative_Contracts

Derivative Contracts	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Contracts	Derivative Contracts
	Cash Flow Hedges of Interest Rate Risk
	We make use of interest rate swap and interest rate cap contracts to manage the risk associated with changes in the interest rates on our floating-rate borrowings. When we enter into a floating-rate term loan, we generally enter into an interest rate swap agreement for the equivalent principal amount, for a period covering the majority of the loan term, which effectively converts our floating-rate debt to a fixed-rate basis during that time. In limited instances, we make use of interest rate caps to limit our exposure to interest rate increases on underlying floating-rate debt.
	We may enter into derivative contracts that are intended to hedge certain economic risks, even though hedge accounting does not apply, or for which we elect to not apply hedge accounting. We do not make use of any other derivative instruments, and we do not speculate in derivatives. See Note 6 for the details of our floating-rate debt that we have hedged.
	Designated Hedges
	As of March 31, 2015, the totals of our existing swaps that qualified as highly effective cash flow hedges were as follows:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Interest Rate Swaps		8		$1,930,480
	As of March 31, 2015, the totals of our Funds' existing swaps that qualified as highly effective cash flow hedges were
	as follows:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Interest Rate Swaps		1		$325,000
	Non-designated Hedges
	Derivatives not designated as hedges are not speculative. As of March 31, 2015, we had the following outstanding interest rate derivatives that were not designated for accounting purposes as hedging instruments, but were used to hedge our economic exposure to interest rate risk:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Purchased Caps		3		$18,000
	Credit-risk-related Contingent Features
	We have agreements with each of our derivative counterparties that contain a provision under which we could also be declared in default on our derivative obligations if we default on the underlying indebtedness that we are hedging. As of March 31, 2015, there have been no events of default with respect to any of our derivatives.
	As of March 31, 2015 and December 31, 2014, the fair value of our derivatives in a net liability position, when aggregated by counterparty, was $38.8 million and $41.0 million, respectively, which includes accrued interest, but excludes any adjustment for nonperformance risk related to these agreements. As of March 31, 2015 and December 31, 2014, our Funds did not have any derivatives in a net liability position.
	Accounting for Interest Rate Contracts
	For hedging instruments designated as cash flow hedges, gain or loss recognition are generally matched to the earnings effect of the related hedged item or transaction, with any resulting hedge ineffectiveness recorded as interest expense. Hedge ineffectiveness is determined by comparing the changes in the fair value or cash flows of the hedge to the changes in the fair value or cash flows of the related hedged item or transaction. All other changes in the fair value of these hedges are recorded in accumulated other comprehensive income (loss) (AOCI), which is a component of equity outside of earnings. Amounts reported in AOCI related to our hedges are then reclassified to interest expense as interest payments are made on the hedged item or transaction. Amounts reported in AOCI related to our Funds' hedges are reclassified to income, including depreciation, from unconsolidated real estate funds, as interest payments are made by our Funds on their hedged items or transactions. Changes in fair value of derivatives not designated as hedges are recorded as interest expense.
	We estimate that $28.3 million of our AOCI related to our derivatives designated as cash flow hedges will be reclassified as an increase to interest expense during the next twelve months, and $570 thousand of our AOCI related to our Funds' derivatives designated as cash flow hedges will be reclassified as a decrease to income, including depreciation, from unconsolidated real estate funds during the next twelve months.
	The table below presents (in thousands) the effect of our derivative instruments, and our Funds' derivative instruments, on our AOCI and consolidated statements of operations for the three months ended March 31:
		2015				2014
	Derivatives Designated as Cash Flow Hedges:
	Gain (loss) recognized in AOCI (effective portion)1	$	(7,022	)		$	(3,382	)
	Gain (loss) recognized in AOCI (effective portion)1 related to our investment in unconsolidated real estate funds	$	(1,333	)		$	(499	)
	Loss reclassified from AOCI into interest expense (effective portion)	$	(9,133	)		$	(9,067	)
	Loss reclassified from AOCI into income, including depreciation, from unconsolidated real estate funds (effective portion)	$	(240	)		$	(244	)
	Loss reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	(21	)
	Gain (loss) on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	—
	Derivatives Not Designated as Cash Flow Hedges:
	Realized and unrealized gain (loss) recognized as interest expense	$	—			$	—
	___________________________________________________
	-1	Gains and losses recognized in AOCI do not impact the statement of operations. Refer to the reconciliation of our AOCI in Note 9.

Equity

Equity	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Equity	Equity
	Equity transactions
	During the three months ended March 31, 2015, we acquired 0.9 million OP Units in exchange for an equal number of shares of our common stock, and we issued 136 thousand shares of our common stock for the exercise of options for net proceeds of $1.8 million, for an average price of $13.44 per share. In addition, we issued 34 thousand OP Units valued at $1.0 million in connection with the acquisition of land under one of our office buildings (see Notes 3 and 5).
	During the three months ended March 31, 2014, we acquired 1.1 million OP Units in exchange for an equal number of shares of our common stock, we acquired 120 thousand OP Units for cash for a total purchase price of $2.8 million, for an average price of $23.56 per unit, and we cash settled options covering 539 thousand shares of our common stock for a total cost of $2.9 million, for an average net price of $5.30 per option.
	Condensed consolidated statements of equity
	The tables below present (in thousands) our condensed consolidated statements of equity:
		Douglas Emmett, Inc. Stockholders' Equity			Noncontrolling Interests			Total Equity
	Balance as of January 1, 2015	$	1,943,458		$	370,266		$	2,313,724
	Net income	18,699			3,397			22,096
	Cash flow hedge adjustment	685			333			1,018
	Dividends and distributions	(30,630		)	(5,995		)	(36,625		)
	Exchange of operating partnership units	11,408			(11,408		)	—
	Issuance of operating partnership units	—			1,000			1,000
	Exercise of stock options	1,823			—			1,823
	Equity compensation	—			2,155			2,155
	Balance as of March 31, 2015	$	1,945,443		$	359,748		$	2,305,191
		Douglas Emmett, Inc. Stockholders' Equity			Noncontrolling Interests			Total Equity
	Balance as of January 1, 2014	$	1,970,397		$	396,811		$	2,367,208
	Net income	12,976			2,482			15,458
	Cash flow hedge adjustment	4,152			1,299			5,451
	Contributions	—			250			250
	Dividends and distributions	(28,735		)	(5,958		)	(34,693		)
	Repurchase of stock options	(2,854		)	—			(2,854		)
	Exchange of operating partnership units	14,384			(14,384		)	—
	Repurchase of operating partnership units	(1,197		)	(1,630		)	(2,827		)
	Equity compensation	—			1,497			1,497
	Balance as of March 31, 2014	$	1,969,123		$	380,367		$	2,349,490
	Noncontrolling Interests
	As of March 31, 2015, we had 145.9 million shares of common stock and 26.8 million OP Units and fully-vested Long Term Incentive Plan Units ("LTIP Units") outstanding. Noncontrolling interests in our operating partnership relate to interests in our operating partnership that are not owned by us.  As of March 31, 2015, noncontrolling interests represented approximately 16% of our operating partnership.  An OP Unit and a share of our common stock have essentially the same economic characteristics, as they share equally in the total net income or loss distributions of our operating partnership.  Investors who own OP Units have the right to cause our operating partnership to redeem any or all of their OP Units for an amount of cash per unit equal to the then current market value of one share of common stock, or, at our election, shares of our common stock on a one-for-one basis. Noncontrolling interests also include a one-third interest of a minority partner in a consolidated joint venture which owns an office building in Honolulu, Hawaii.
	The table below presents (in thousands) the net income attributable to common stockholders and transfers (to) from the noncontrolling interests:
		Three Months Ended March 31,
		2015			2014
	Net income attributable to common stockholders	$	18,699		$	12,976
	Transfers from the noncontrolling interests:
	Increase in common stockholders paid-in capital for redemption of operating partnership units	11,400			14,373
	Change from net income attributable to common stockholders and transfers from noncontrolling interests	$	30,099		$	27,349
	AOCI Reconciliation
	The table below presents (in thousands) a reconciliation of our AOCI, which consists solely of adjustments related to derivatives designated as cash flow hedges for the three months ended March 31:
		2015			2014
	Beginning balance	$	(30,089	)	$	(50,554	)
	Other comprehensive loss before reclassifications - our derivatives	(7,022		)	(3,382		)
	Other comprehensive loss before reclassifications - our Fund's derivative	(1,333		)	(499		)
	Reclassifications from AOCI - our consolidated derivatives(1)	9,133			9,088
	Reclassifications from AOCI - our Fund's derivative(2)	240			244
	Net current period OCI	1,018			5,451
	Less OCI attributable to noncontrolling interests	(333		)	(1,299		)
	OCI attributable to common stockholders	685			4,152
	Ending balance	$	(29,404	)	$	(46,402	)
	___________________________________________________
	-1	Reclassification to interest expense.
	-2	Reclassification to income, including depreciation, from our unconsolidated Funds.
	-3	See Note 8 for the details of our derivatives and our unconsolidated Fund's derivative.
	-4	See Note 11 for our derivative fair value disclosures.
	Equity Compensation
	The Douglas Emmett, Inc. 2006 Omnibus Stock Incentive Plan, as amended, our stock incentive plan, is administered by the compensation committee of our board of directors.  All officers, employees, directors and consultants are eligible to participate in our stock incentive plan.  For more information on our stock incentive plan, please refer to Note 11 to the consolidated financial statements in our 2014 Annual Report on Form 10-K.
	Total net equity compensation expense for equity grants was $1.9 million and $1.4 million for the three months ended March 31, 2015 and 2014, respectively. These amounts do not include capitalized equity compensation totaling $193 thousand and $133 thousand for the three months ended March 31, 2015 and 2014, respectively.  The total intrinsic value of options exercised for the three months ended March 31, 2015 was $2.2 million. The total intrinsic value of options exercised and repurchased for the three months ended March 31, 2014 was $2.8 million. Total net equity compensation expense is included in general and administrative expenses in the consolidated statements of operations.

Earnings_Per_Share_EPS

Earnings Per Share (EPS)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share (EPS)	Earnings Per Share (EPS)
	We calculate basic EPS by dividing the net income attributable to common stockholders for the period by the weighted average number of common shares outstanding during the period. We calculate diluted EPS by dividing the net income attributable to common stockholders and noncontrolling interests in our consolidated operating partnership for the period by the weighted average number of common shares and dilutive instruments outstanding during the period using the treasury stock method. We account for unvested LTIP awards that contain nonforfeitable rights to dividends as participating securities and include these securities in the computation of EPS using the two-class method. The table below presents the calculation of basic and diluted EPS:
		Three Months Ended March 31,
		2015			2014
	Numerator (in thousands):
	Net income attributable to common stockholders	$	18,699		$	12,976
	Allocation to participating securities: Unvested LTIP units	(116		)	(59		)
	Numerator for basic and diluted net income attributable to common stockholders	$	18,583		$	12,917
	Denominator (in thousands):
	Weighted average shares of common stock outstanding - basic	145,327			143,140
	Effect of dilutive securities(1): Stock options	4,475			3,721
	Weighted average shares of common stock and common stock equivalents outstanding - diluted	149,802			146,861
	Basic earnings per share:
	Net income attributable to common stockholders per share	$	0.128		$	0.09
	Diluted earnings per share:
	Net income attributable to common stockholders per share	$	0.124		$	0.088
	____________________________________________________
	-1	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock and other convertible equity instruments. For the three months ended March 31, 2015 and 2014, weighted average Operating Partnership units and vested LTIP units of 27.2 million and 28.5 million, and unvested LTIP units of 503 thousand and 439 thousand, respectively, were excluded from the computation of the weighted average diluted shares because the effect would be anti-dilutive.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments
	Our estimates of the fair value of financial instruments were determined using available market information and appropriate valuation methods.  Considerable judgment is necessary to interpret market data and develop an estimated fair value.  The use of different market assumptions or estimation methods may have a material effect on the estimated fair value amounts. The FASB fair value framework hierarchy distinguishes between assumptions based on market data obtained from sources independent of the reporting entity, and the reporting entity’s own assumptions about market-based inputs.  The hierarchy is as follows:
	Level 1 - inputs utilize unadjusted quoted prices in active markets for identical assets or liabilities.
	Level 2 - inputs are observable either directly or indirectly for similar assets and liabilities in active markets.
	Level 3 - inputs are unobservable assumptions generated by the reporting entity.
	As of March 31, 2015, we did not have any fair value measurements using Level 3 inputs.
	Short term financial instruments (disclosure of fair value)
	The carrying amounts for cash and cash equivalents, tenant receivables, revolving credit lines, interest payable, accounts payable, security deposits and dividends payable approximate fair value because of the short-term nature of these instruments.
	Note receivable (disclosure of fair value)
	See Note 16 for the details of our note receivable. Based on Level 2 inputs based on current market interest rates, the fair value of the note receivable approximated its carrying value at March 31, 2015.
	Secured notes payable (disclosure of fair value)
	See Note 6 for the details of our secured notes payable. We calculate the fair value of our secured notes payable by calculating the credit-adjusted present value of the principal and interest payments using current market interest rates, assuming that the loans will be outstanding through maturity, and excluding any maturity extension options. We determined that the fair value of our secured notes payable is calculated using Level 2 inputs.  The table below presents (in thousands) the estimated fair value of our secured notes payable:
	Secured Notes Payable:	March 31, 2015		December 31, 2014
	Fair value	$	3,406,046	$	3,293,351
	Carrying value	$	3,355,466	$	3,253,290
	Derivative instruments (measured at fair value)
	See Note 8 for the details of our derivatives. We present our derivatives on the balance sheet at fair value, on a gross basis, excluding accrued interest, using the framework for measuring fair value established by the FASB.  The valuation of our derivative instruments is determined using widely accepted valuation methods, including discounted cash flow analysis of the expected future cash flows of each derivative.  This analysis reflects the contractual terms of the derivatives, and uses observable market-based inputs, including forward interest rate curves.  We incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements.  We determined that the fair value of our derivatives are calculated using Level 2 inputs. The table below presents (in thousands) the estimated fair value of our derivative liabilities:
	Derivative Instruments in a Liability Position:(1)	March 31, 2015		December 31, 2014
	Level 1	$	—	$	—
	Level 2	35,275		37,386
	Level 3	—		—
	Fair Value of Derivative Instruments	$	35,275	$	37,386
	____________________________________________________________________________________
	(1) We did not have any derivative assets as of March 31, 2015 and December 31, 2014.

Future_Minimum_Lease_Receipts

Future Minimum Lease Receipts	3 Months Ended
	Mar. 31, 2015
Operating Leases, Future Minimum Payments Receivable [Abstract]
Future Minimum Lease Receipts	Future Minimum Lease Receipts
	We lease space to tenants primarily under non-cancelable operating leases that generally contain provisions for a base rent plus reimbursement for certain operating expenses.  Operating expense reimbursements are reflected in our consolidated statements of operations as tenant recoveries. We also lease space to certain tenants under non-cancelable leases that provide for percentage rents based upon tenant revenues.  Percentage rental income totaled $230 thousand and $127 thousand for the three months ended March 31, 2015 and 2014, respectively.
	The table below presents (in thousands) the future minimum base rentals on our non-cancelable office and ground operating leases at March 31, 2015:
	Twelve months ending March 31:
	2016	$	385,884
	2017	344,060
	2018	295,027
	2019	233,142
	2020	189,716
	Thereafter	500,541
	Total future minimum base rentals	$	1,948,370
	The above future minimum lease receipts exclude residential leases, which typically have a term of one year or less, as well as tenant reimbursements, amortization of deferred rent receivables and amortization/accretion of acquired above/below-market lease intangibles.  Some leases are subject to termination options, generally upon payment of a termination fee.  The preceding table assumes that these termination options are not exercised.

Future_Minimum_Lease_Payments

Future Minimum Lease Payments	3 Months Ended
	Mar. 31, 2015
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Future Minimum Lease Payments	Future Minimum Lease Payments
	During the three months ended March 31, 2015 and 2014, we incurred lease payments related to two ground leases of $192 thousand and $539 thousand, respectively.  We acquired of the fee interest related to one of those ground leases in February 2015 (see Notes 3 and 5), accordingly, the table below presents (in thousands) the future minimum ground lease payments of our remaining ground lease as of March 31, 2015:
	Twelve months ending March 31:
	2016	$	733
	2017	733
	2018	733
	2019	733
	2020	733
	Thereafter	48,927
	Total future minimum lease payments	$	52,592	(1)
	___________________________________________________
	-1	Lease term ends on December 31, 2086, and requires ground rent payments of $733 thousand per year that will continue until February 28, 2019, rental payments for successive rental periods thereafter shall be determined by mutual agreement with the lessor. The future minimum ground lease payments in the table above assume that the rental payments will continue to be $733 thousand per year after February 28, 2019.

Commitments_Contingencies_and_

Commitments, Contingencies and Guarantees	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Guarantees	Commitments, Contingencies and Guarantees
	Legal Proceedings
	We are subject to various legal proceedings and claims that arise in the ordinary course of business.  Excluding ordinary, routine litigation incidental to our business, we are not currently a party to any legal proceedings that we believe would reasonably be expected to have a materially adverse effect on our business, financial condition or results of operations.
	Concentration of Risk
	Our properties are located in Los Angeles County, California and Honolulu, Hawaii.  The ability of our tenants to honor the terms of their respective leases is dependent upon the economic, regulatory and social factors affecting the markets in which the tenants operate.  We perform ongoing credit evaluations of our tenants for potential credit losses. For the three months ended March 31, 2015 and 2014, no tenant accounted for more than 10% of our total rental revenue and tenant recoveries.
	We have financial instruments that subject us to credit risk, which consist primarily of accounts receivable, deferred rents receivable and interest rate contracts.  We maintain our cash and cash equivalents at high quality financial institutions with investment grade ratings.  Interest bearing accounts at each U.S. banking institution are insured by the Federal Deposit Insurance Corporation up to $250 thousand. To date, we have not experienced any losses on our deposited cash.
	Asset Retirement Obligations
	Conditional asset retirement obligations represent a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement is conditional on a future event that may or may not be within our control.  A liability for a conditional asset retirement obligation must be recorded if the fair value of the obligation can be reasonably estimated.  Environmental site assessments and investigations have identified twenty-three properties in our consolidated portfolio, and four properties owned by our Funds, which contain asbestos, and would have to be removed in compliance with applicable environmental regulations if these properties undergo major renovations or are demolished.  As of March 31, 2015, the obligations to remove the asbestos from these properties have indeterminable settlement dates, and we are unable to reasonably estimate the fair value of the associated conditional asset retirement obligation.
	Guarantees
	We made certain environmental and other limited indemnities and guarantees covering customary non-recourse carve outs for a $325.0 million loan of one of our Funds. The loan matures on May 1, 2018, and carries interest that is effectively fixed by an interest rate swap which matures on May 1, 2017, we have also guaranteed the related swap. We have an indemnity from the Fund for any amounts that we would be required to pay under these agreements. As of March 31, 2015, the maximum future payments under the swap agreement were approximately $4.1 million.  As of March 31, 2015, all obligations under the loan and swap agreements have been performed by the Fund in accordance with the terms of those agreements.

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting
	Segment information is prepared on the same basis that we review information for operational decision-making purposes.  We operate in two business segments: (i) the acquisition, development, ownership and management of office real estate and (ii) the acquisition, development, ownership and management of multifamily real estate.  The services for our office segment primarily include rental of office space and other tenant services, including parking and storage space rental.  The services for our multifamily segment include rental of apartments and other tenant services, including parking and storage space rental.
	Asset information by segment is not reported because we do not use this measure to assess performance or make decisions to allocate resources.  Therefore, depreciation and amortization expense is not allocated among segments.  General and administrative expenses and interest expense are not included in segment profit as our internal reporting addresses these items on a corporate level.
	Segment profit is not a measure of operating income or cash flows from operating activities as measured by GAAP, it is not indicative of cash available to fund cash needs, and should not be considered as an alternative to cash flows as a measure of liquidity.  Not all companies may calculate segment profit in the same manner.  We consider segment profit to be an appropriate supplemental measure to net income because it can assist both investors and management in understanding the core operations of our properties.
	The table below presents (in thousands) the operating activity of our reportable segments:
		Three Months Ended March 31,
		2015			2014
	Office Segment
	Total office revenues	$	131,456		$	129,087
	Office expenses	(44,199		)	(43,356		)
	Segment profit	87,257			85,731
	Multifamily Segment
	Total multifamily revenues	23,353			19,789
	Multifamily expenses	(5,820		)	(5,133		)
	Segment profit	17,533			14,656
	Total profit from all segments	$	104,790		$	100,387
	The table below (in thousands) is a reconciliation of the total profit from all segments to net income attributable to common stockholders:
		Three Months Ended March 31,
		2015			2014
	Total profit from all segments	$	104,790		$	100,387
	General and administrative expense	(7,361		)	(6,811		)
	Depreciation and amortization	(49,834		)	(50,199		)
	Other income	8,559			4,287
	Other expenses	(1,572		)	(1,453		)
	Income, including depreciation, from unconsolidated real estate funds	1,443			1,113
	Interest expense	(33,639		)	(31,838		)
	Acquisition-related expenses	(290		)	(28		)
	Net income	22,096			15,458
	Less: Net income attributable to noncontrolling interests	(3,397		)	(2,482		)
	Net income attributable to common stockholders	$	18,699		$	12,976

Investments_In_Unconsolidated_

Investments In Unconsolidated Real Estate Funds	3 Months Ended
	Mar. 31, 2015
Real Estate Investments, Net [Abstract]
Investments In Unconsolidated Real Estate Funds	Investments in Unconsolidated Real Estate Funds
	We manage and own an equity interest in two Funds, Fund X and Partnership X, through which we and investors own eight office properties totaling 1.8 million square feet in our core markets.  At March 31, 2015, we held equity interests of 68.61% of Fund X and 24.25% of Partnership X. We received cash distributions from our Funds totaling $2.3 million and $3.0 million during the three months ended March 31, 2015 and 2014, respectively.
	Our investment in the Funds includes an unsecured note receivable. In April 2013, we loaned $2.9 million to a related party investor in connection with a capital call made by Fund X. The loan carries interest at one month LIBOR plus 2.5% per annum, and is due and payable no later than April 1, 2017, with mandatory prepayments equal to any distributions with respect the related party's interest in Fund X. As of March 31, 2015, and December 31, 2014, the balance outstanding on the loan was $1.2 million and $1.5 million, respectively. The interest recognized on this note is included in other income in our consolidated statements of operations.
	The accounting policies of the Funds are consistent with ours. The tables below present (in thousands) selected financial information for the Funds on a combined basis.  The amounts presented represent 100% (not our pro-rata share) of amounts related to the Funds, and are based upon historical acquired book value:
		Three Months Ended March 31,
		2015		2014
	Total revenues	$	17,480	$	16,355
	Operating income	3,814		3,251
	Net income	960		384
		March 31, 2015		December 31, 2014
	Total assets	$	699,065	$	703,130
	Total liabilities	389,381		389,413
	Total equity	309,684		313,717

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent events
	On April 15, 2015, we closed a secured, non-recourse $340.0 million interest only term loan that will mature in April 2022. The loan bears interest at LIBOR plus 1.4%, and has been effectively fixed at 2.77% per annum until April 2020 utilizing an interest rate swap. The loan is secured by a pool of six properties. We used the proceeds from this loan to prepay $140.0 million of our $400.0 million loan due in 2017 and to pay down the outstanding balance on our credit line.

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates.
Income Taxes	Income Taxes
	We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended. Provided that we qualify for taxation as a REIT, we are generally not subject to corporate-level income tax on the earnings distributed currently to our stockholders that we derive from our REIT qualifying activities. We are subject to corporate-level tax on the earnings that we derive through our taxable REIT subsidiaries (TRS).
Recently Issued Accounting Literature	Recently Issued Accounting Literature
	Changes to GAAP are established by the Financial Accounting Standards Board (FASB) in the form of Accounting Standard Updates (ASUs).  We consider the applicability and impact of all ASUs.
	In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (Topics 205 and 360), which provides guidance for reporting discontinued operations. The amendments in this ASU change the requirements for reporting discontinued operations in Subtopic 205-20, Presentation of Financial Statements. The ASU is effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2014, which for us would be the first quarter of 2015. We adopted the ASU during the first quarter of 2015 and it did not have a material impact on our financial position or results of operations.
	In March 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest (Subtopic 835-30), which provides guidance on the presentation of debt issuance costs. To simplify the presentation of debt issuance costs, the amendments in this Update would require that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the related debt, consistent with the manner in which debt discounts or premiums would be presented. This ASU is the final version of Proposed ASU 2014-250-Interest-Imputation of Interest (Subtopic 835-30), which has been deleted. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2015, which for us would be the first quarter of 2016, and early adoption is permitted. The ASU requires that the new presentation of debt issuance costs be applied on a retrospective basis. The change in presentation is required to be disclosed as a change in accounting principle. We do not expect the ASU to have a material impact on our financial position or results of operations.
	The FASB has not issued any other ASUs during 2015 that we expect to be applicable and have a material impact on our future financial position or results of operations.

Investment_in_Real_Estate_Tabl

Investment in Real Estate (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The table below (in thousands) summarizes our preliminary purchase price allocations for the acquisitions (these allocations are subject to adjustments within twelve months of the acquisition date):
		Harbor Court Land		First Financial Plaza
	Investment in real estate:
	Land	$	12,060	$	12,092
	Buildings and improvements	15,440		75,039
	Tenant improvements and lease intangibles	—		6,065
	Acquired above and below-market leases, net	—		(790		)
	Net assets and liabilities acquired	$	27,500	$	92,406

Acquired_Lease_Intangibles_Tab

Acquired Lease Intangibles (Tables)	3 Months Ended
	Mar. 31, 2015
Acquired Lease Intangibles [Abstract]
Summary Of Acquired Lease Intangibles	The following summarizes our acquired lease intangibles related to above/below-market leases (in thousands) as of:
		March 31, 2015			December 31, 2014
	Above-market tenant leases(1)	$	4,883		$	3,040
	Accumulated amortization(2)	(2,195		)	(2,082		)
	Below-market ground leases	3,198			3,198
	Accumulated amortization(3)	(648		)	(629		)
	Acquired lease intangible assets, net	$	5,238		$	3,527
	Below-market tenant leases(1)	$	140,721		$	138,088
	Accumulated accretion(2)	(105,655		)	(102,335		)
	Above-market ground leases(4)	6,160			16,200
	Accumulated accretion(3)(4)	(2,565		)	(5,994		)
	Acquired lease intangible liabilities, net	$	38,661		$	45,959
	________________________________________________
	-1	Includes leases from an office property that we purchased in the first quarter of 2015. See Note 3.
	-2	Net accretion of above- and below-market tenant leases recorded as an increase to rental income totaled $3.2 million and $3.5 million for the three months ended March 31, 2015 and 2014, respectively.
	-3	Net accretion of above- and below-market ground leases recorded as a decrease to office rental operating expense totaled $13 thousand and $45 thousand for three months ended March 31, 2015 and 2014, respectively. Net amortization of above- and below-market ground leases recorded as a decrease to rental income totaled $19 thousand and $15 thousand for the three months ended March 31, 2015 and 2014, respectively.
	-4	In the first quarter of 2015, we recognized an additional $6.6 million of accretion for an above-market ground lease in other income related to the purchase of the Harbor Court Land (see Note 3) and removed the cost and accumulated accretion of $10.0 million for that ground lease from our balance sheet.

Other_Assets_Tables

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Other Assets [Abstract]
Schedule Of Other Assets	Other assets consisted of the following (in thousands) as of:
		March 31, 2015		December 31, 2014
	Deferred loan costs, net of accumulated amortization of $14,801 and $13,042 at March 31, 2015 and December 31, 2014, respectively (1)	$	14,810	$	15,623
	Note receivable(2)	—		27,500
	Restricted cash	194		194
	Prepaid expenses	5,216		6,108
	Other indefinite-lived intangible	1,988		1,988
	Deposits in escrow	—		2,500
	Other	3,041		3,357
	Total other assets	$	25,249	$	57,270
	__________________________________________________________________________________
	-1	Deferred loan cost amortization expense of $1.8 million and $1.0 million for the three months ended March 31, 2015 and March 31, 2014, respectively, is included in interest expense in our consolidated statements of operations.
	-2	On February 12, 2015, the owner of a fee interest related to one of our office buildings, to whom we previously loaned $27.5 million, repaid $1.0 million of the loan with cash, and then contributed the respective fee interest valued at $27.5 million to our operating partnership, subject to the remaining balance of that loan of $26.5 million, in exchange for 34,412 units in our operating partnership ("OP Units") valued at $1.0 million. See Notes 3 and 9.

Secured_Notes_Payable_and_Revo1

Secured Notes Payable and Revolving Credit Facility(Tables)	3 Months Ended
	Mar. 31, 2015
Secured Debt [Abstract]
Schedule Of Secured Notes Payable and Revolving Credit Facility	The following table summarizes (in thousands) our secured notes payable and revolving credit facility:
	Description(1)		Maturity		Outstanding Principal Balance as of March 31, 2015		Outstanding Principal Balance as of December 31, 2014		Variable Interest Rate	Effective	Swap Maturity Date
			Date							Annual
										Fixed Interest
										Rate (2)
	Term Loan		12/24/15		$	20,000	$	20,000	LIBOR + 1.45%	N/A	--
	Term Loan (3)		3/1/16		16,140		16,140		LIBOR + 1.60%	N/A	--
	Fannie Mae Loan		3/1/16		82,000		82,000		LIBOR + 0.62%	N/A	--
	Fannie Mae Loan		6/1/17		18,000		18,000		LIBOR + 0.62%	N/A	--
	Term Loan(4)		10/2/17		400,000		400,000		LIBOR + 2.00%	4.45%	7/1/15
	Term Loan		4/2/18		510,000		510,000		LIBOR + 2.00%	4.12%	4/1/16
	Term Loan		8/1/18		530,000		530,000		LIBOR + 1.70%	3.74%	8/1/16
	Term Loan (5)		8/5/18		355,000		355,000		N/A	4.14%	--
	Term Loan (6)		2/1/19		154,776		155,000		N/A	4.00%	--
	Term Loan (7)		6/5/19		285,000		285,000		N/A	3.85%	--
	Fannie Mae Loan		10/1/19		145,000		145,000		LIBOR + 1.25%	N/A	--
	Term Loan (8)		3/1/20	(9)	349,070		349,070		N/A	4.46%	--
	Fannie Mae Loans		11/2/20		388,080		388,080		LIBOR + 1.65%	3.65%	11/1/17
	Fannie Mae Loan		4/1/25		102,400		—		LIBOR + 1.25%	2.84%	3/1/20
	Aggregate loan principal				$	3,355,466	$	3,253,290
	Revolving credit line (10)		12/11/17		148,000		182,000		LIBOR + 1.40%	N/A	--
	Total (11)				$	3,503,466	$	3,435,290
	Aggregate effectively fixed rate loans				$	1,930,480	$	1,828,080		3.98%
	Aggregate fixed rate loans				1,143,846		1,144,070			4.15%
	Aggregate variable rate loans				429,140		463,140			N/A
	Total (11)				$	3,503,466	$	3,435,290
	______________________________________________________________________________________
	-1	As of March 31, 2015, (i) the weighted average remaining life (including extension options) of our outstanding term debt (excluding our revolving credit line) was 3.9 years and (ii) of the $3.07 billion of term debt on which the interest rate was fixed under the terms of the loan or a swap, (a) the weighted average remaining life was 4.0 years, the weighted average remaining period during which interest was fixed was 2.2 years, and the weighted average annual interest rate was 4.04% and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.16%. Except as otherwise noted below, each loan is secured by a separate collateral pool consisting of one or more properties, requiring monthly payments of interest only, with the outstanding principal due upon maturity.
	-2	Includes the effect of interest rate contracts as of March 31, 2015, and excludes amortization of prepaid loan fees. See Note 8 for the details of our interest rate contracts.
	-3	The borrower is a consolidated entity in which our operating partnership owns a two-thirds interest.
	-4	Subsequent to quarter end, we prepaid $140 million of this loan with a portion of the proceeds of a new $340 million term loan, which matures in April 2022, with interest at LIBOR + 1.4%, effectively fixed by a swap at 2.77% per annum until April 2020.
	-5	Interest-only until February 2016, with principal amortization thereafter based upon a 30-year amortization schedule.
	-6	Principal amortization based upon a 30-year amortization schedule.
	-7	Interest only until February 2017, with principal amortization thereafter based upon a 30-year amortization schedule.
	-8	Interest is fixed until March 1, 2018, and is floating thereafter, with interest-only payments until May 1, 2016, and principal amortization thereafter based upon a 30-year amortization schedule.
	-9	We have two one-year extension options which could extend the maturity to March 1, 2020 from March 1, 2018, subject to meeting certain conditions.
	-10	$300.0 million revolving credit facility secured by 3 separate collateral pools consisting of a total of 6 properties. Unused commitment fees range from 0.15% to 0.20%. We used the proceeds of the new term loan described in note 4 above to pay down the entire balance in April.
	-11	See Note 11 for our fair value disclosures.
Schedule Of Minimum Future Principal Payments Due On Secured Notes Payable and Revolving Credit Facility	As of March 31, 2015, the minimum future principal payments due on our secured notes payable and revolving credit facility, excluding any maturity extension options, were as follows (in thousands):
	Twelve months ending March 31:
	2016	$	121,378
	2017	14,150
	2018	924,828
	2019	1,533,589
	2020	419,041
	Thereafter	490,480
	Total future principal payments	$	3,503,466

Interest_Payable_Accounts_Paya1

Interest Payable, Accounts Payable and Deferred Revenue (Tables)	3 Months Ended
	Mar. 31, 2015
Accounts Payable and Accrued Liabilities [Abstract]
Schedule Of Accounts Payable And Accrued Liabilities	Interest payable, accounts payable and deferred revenue consisted of the following (in thousands) as of:
		March 31, 2015		December 31, 2014
	Interest payable	$	9,878	$	9,656
	Accounts payable and accrued liabilities	32,722		22,195
	Deferred revenue	20,540		22,513
	Total interest payable, accounts payable and deferred revenue	$	63,140	$	54,364

Derivative_Contracts_Tables

Derivative Contracts (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Other Derivatives	As of March 31, 2015, the totals of our Funds' existing swaps that qualified as highly effective cash flow hedges were
	as follows:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Interest Rate Swaps		1		$325,000
	As of March 31, 2015, we had the following outstanding interest rate derivatives that were not designated for accounting purposes as hedging instruments, but were used to hedge our economic exposure to interest rate risk:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Purchased Caps		3		$18,000
	As of March 31, 2015, the totals of our existing swaps that qualified as highly effective cash flow hedges were as follows:
	Interest Rate Derivative		Number of Instruments		Notional (in thousands)
	Interest Rate Swaps		8		$1,930,480
Effect Of Derivative Instruments On Consolidated Statements Of Operations	The table below presents (in thousands) the effect of our derivative instruments, and our Funds' derivative instruments, on our AOCI and consolidated statements of operations for the three months ended March 31:
		2015				2014
	Derivatives Designated as Cash Flow Hedges:
	Gain (loss) recognized in AOCI (effective portion)1	$	(7,022	)		$	(3,382	)
	Gain (loss) recognized in AOCI (effective portion)1 related to our investment in unconsolidated real estate funds	$	(1,333	)		$	(499	)
	Loss reclassified from AOCI into interest expense (effective portion)	$	(9,133	)		$	(9,067	)
	Loss reclassified from AOCI into income, including depreciation, from unconsolidated real estate funds (effective portion)	$	(240	)		$	(244	)
	Loss reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	(21	)
	Gain (loss) on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	—
	Derivatives Not Designated as Cash Flow Hedges:
	Realized and unrealized gain (loss) recognized as interest expense	$	—			$	—
	___________________________________________________
	-1	Gains and losses recognized in AOCI do not impact the statement of operations. Refer to the reconciliation of our AOCI in Note 9.

Equity_Tables

Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Condensed Consolidated Statements Of Equity	The tables below present (in thousands) our condensed consolidated statements of equity:
		Douglas Emmett, Inc. Stockholders' Equity			Noncontrolling Interests			Total Equity
	Balance as of January 1, 2015	$	1,943,458		$	370,266		$	2,313,724
	Net income	18,699			3,397			22,096
	Cash flow hedge adjustment	685			333			1,018
	Dividends and distributions	(30,630		)	(5,995		)	(36,625		)
	Exchange of operating partnership units	11,408			(11,408		)	—
	Issuance of operating partnership units	—			1,000			1,000
	Exercise of stock options	1,823			—			1,823
	Equity compensation	—			2,155			2,155
	Balance as of March 31, 2015	$	1,945,443		$	359,748		$	2,305,191
		Douglas Emmett, Inc. Stockholders' Equity			Noncontrolling Interests			Total Equity
	Balance as of January 1, 2014	$	1,970,397		$	396,811		$	2,367,208
	Net income	12,976			2,482			15,458
	Cash flow hedge adjustment	4,152			1,299			5,451
	Contributions	—			250			250
	Dividends and distributions	(28,735		)	(5,958		)	(34,693		)
	Repurchase of stock options	(2,854		)	—			(2,854		)
	Exchange of operating partnership units	14,384			(14,384		)	—
	Repurchase of operating partnership units	(1,197		)	(1,630		)	(2,827		)
	Equity compensation	—			1,497			1,497
	Balance as of March 31, 2014	$	1,969,123		$	380,367		$	2,349,490
Net Income Attributable To Common Stockholders And Transfers (To) From Noncontrolling Interests	The table below presents (in thousands) the net income attributable to common stockholders and transfers (to) from the noncontrolling interests:
		Three Months Ended March 31,
		2015			2014
	Net income attributable to common stockholders	$	18,699		$	12,976
	Transfers from the noncontrolling interests:
	Increase in common stockholders paid-in capital for redemption of operating partnership units	11,400			14,373
	Change from net income attributable to common stockholders and transfers from noncontrolling interests	$	30,099		$	27,349
Schedule of Accumulated Other Comprehensive Income (Loss)	The table below presents (in thousands) a reconciliation of our AOCI, which consists solely of adjustments related to derivatives designated as cash flow hedges for the three months ended March 31:
		2015			2014
	Beginning balance	$	(30,089	)	$	(50,554	)
	Other comprehensive loss before reclassifications - our derivatives	(7,022		)	(3,382		)
	Other comprehensive loss before reclassifications - our Fund's derivative	(1,333		)	(499		)
	Reclassifications from AOCI - our consolidated derivatives(1)	9,133			9,088
	Reclassifications from AOCI - our Fund's derivative(2)	240			244
	Net current period OCI	1,018			5,451
	Less OCI attributable to noncontrolling interests	(333		)	(1,299		)
	OCI attributable to common stockholders	685			4,152
	Ending balance	$	(29,404	)	$	(46,402	)
	___________________________________________________
	-1	Reclassification to interest expense.
	-2	Reclassification to income, including depreciation, from our unconsolidated Funds.
	-3	See Note 8 for the details of our derivatives and our unconsolidated Fund's derivative.
	-4	See Note 11 for our derivative fair value disclosures.

Earnings_Per_Share_EPS_Tables

Earnings Per Share (EPS) (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The table below presents the calculation of basic and diluted EPS:
		Three Months Ended March 31,
		2015			2014
	Numerator (in thousands):
	Net income attributable to common stockholders	$	18,699		$	12,976
	Allocation to participating securities: Unvested LTIP units	(116		)	(59		)
	Numerator for basic and diluted net income attributable to common stockholders	$	18,583		$	12,917
	Denominator (in thousands):
	Weighted average shares of common stock outstanding - basic	145,327			143,140
	Effect of dilutive securities(1): Stock options	4,475			3,721
	Weighted average shares of common stock and common stock equivalents outstanding - diluted	149,802			146,861
	Basic earnings per share:
	Net income attributable to common stockholders per share	$	0.128		$	0.09
	Diluted earnings per share:
	Net income attributable to common stockholders per share	$	0.124		$	0.088
	____________________________________________________
	-1	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock and other convertible equity instruments. For the three months ended March 31, 2015 and 2014, weighted average Operating Partnership units and vested LTIP units of 27.2 million and 28.5 million, and unvested LTIP units of 503 thousand and 439 thousand, respectively, were excluded from the computation of the weighted average diluted shares because the effect would be anti-dilutive.

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Estimated Fair Value of Secured Notes Payable	The table below presents (in thousands) the estimated fair value of our secured notes payable:
	Secured Notes Payable:	March 31, 2015		December 31, 2014
	Fair value	$	3,406,046	$	3,293,351
	Carrying value	$	3,355,466	$	3,253,290
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The table below presents (in thousands) the estimated fair value of our derivative liabilities:
	Derivative Instruments in a Liability Position:(1)	March 31, 2015		December 31, 2014
	Level 1	$	—	$	—
	Level 2	35,275		37,386
	Level 3	—		—
	Fair Value of Derivative Instruments	$	35,275	$	37,386
	____________________________________________________________________________________
	(1) We did not have any derivative assets as of March 31, 2015 and December 31, 2014.

Future_Minimum_Lease_Receipts_

Future Minimum Lease Receipts (Tables)	3 Months Ended
	Mar. 31, 2015
Operating Leases, Future Minimum Payments Receivable [Abstract]
Schedule Of Future Minimum Base Rentals On Non-Cancelable Office And Ground Operating Leases	The table below presents (in thousands) the future minimum base rentals on our non-cancelable office and ground operating leases at March 31, 2015:
	Twelve months ending March 31:
	2016	$	385,884
	2017	344,060
	2018	295,027
	2019	233,142
	2020	189,716
	Thereafter	500,541
	Total future minimum base rentals	$	1,948,370

Future_Minimum_Lease_Payments_

Future Minimum Lease Payments (Tables)	3 Months Ended
	Mar. 31, 2015
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Future Minimum Ground Lease Payments	of the fee interest related to one of those ground leases in February 2015 (see Notes 3 and 5), accordingly, the table below presents (in thousands) the future minimum ground lease payments of our remaining ground lease as of March 31, 2015:
	Twelve months ending March 31:
	2016	$	733
	2017	733
	2018	733
	2019	733
	2020	733
	Thereafter	48,927
	Total future minimum lease payments	$	52,592	(1)
	___________________________________________________
	-1	Lease term ends on December 31, 2086, and requires ground rent payments of $733 thousand per year that will continue until February 28, 2019, rental payments for successive rental periods thereafter shall be determined by mutual agreement with the lessor. The future minimum ground lease payments in the table above assume that the rental payments will continue to be $733 thousand per year after February 28, 2019.

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Operating Activity Within Reportable Segments	The table below presents (in thousands) the operating activity of our reportable segments:
		Three Months Ended March 31,
		2015			2014
	Office Segment
	Total office revenues	$	131,456		$	129,087
	Office expenses	(44,199		)	(43,356		)
	Segment profit	87,257			85,731
	Multifamily Segment
	Total multifamily revenues	23,353			19,789
	Multifamily expenses	(5,820		)	(5,133		)
	Segment profit	17,533			14,656
	Total profit from all segments	$	104,790		$	100,387
Reconciliation Of Segment Profit To Net Income Attributable To Common Stockholders	The table below (in thousands) is a reconciliation of the total profit from all segments to net income attributable to common stockholders:
		Three Months Ended March 31,
		2015			2014
	Total profit from all segments	$	104,790		$	100,387
	General and administrative expense	(7,361		)	(6,811		)
	Depreciation and amortization	(49,834		)	(50,199		)
	Other income	8,559			4,287
	Other expenses	(1,572		)	(1,453		)
	Income, including depreciation, from unconsolidated real estate funds	1,443			1,113
	Interest expense	(33,639		)	(31,838		)
	Acquisition-related expenses	(290		)	(28		)
	Net income	22,096			15,458
	Less: Net income attributable to noncontrolling interests	(3,397		)	(2,482		)
	Net income attributable to common stockholders	$	18,699		$	12,976

Investments_In_Unconsolidated_1

Investments In Unconsolidated Real Estate Funds (Tables)	3 Months Ended
	Mar. 31, 2015
Real Estate Investments, Net [Abstract]
Summary Of Statement Of Operations For Investments In Unconsolidated Real Estate Funds	The tables below present (in thousands) selected financial information for the Funds on a combined basis.  The amounts presented represent 100% (not our pro-rata share) of amounts related to the Funds, and are based upon historical acquired book value:
		Three Months Ended March 31,
		2015		2014
	Total revenues	$	17,480	$	16,355
	Operating income	3,814		3,251
	Net income	960		384
		March 31, 2015		December 31, 2014
	Total assets	$	699,065	$	703,130
	Total liabilities	389,381		389,413
	Total equity	309,684		313,717

Overview_Details

Overview (Details)	Mar. 31, 2015
	Number_of_Properties
Overview [Line Items]
Number of office properties owned	62
Wholly Owned Consolidated Properties [Member]
Overview [Line Items]
Number of office properties owned	54
Number of multifamily properties owned	10
Number of land parcels	2
Partially Owned Properties [Member]
Overview [Line Items]
Number of office properties owned	8

Investment_in_Real_Estate_Deta

Investment in Real Estate (Details) (USD $)	Mar. 05, 2015	Feb. 12, 2015
In Thousands, unless otherwise specified
First Financial Plaza [Member]
Business Acquisition [Line Items]
Land	$12,092
Buildings and improvements	75,039
Tenant improvements and lease intangibles	6,065
Acquired above and below-market leases, net	-790
Net assets and liabilities acquired	92,406
Harbor Court Land [Member]
Business Acquisition [Line Items]
Land		12,060
Buildings and improvements		15,440
Tenant improvements and lease intangibles		0
Acquired above and below-market leases, net		0
Net assets and liabilities acquired		$27,500

Investment_In_Real_Estate_Narr

Investment In Real Estate (Narrative) (Details) (USD $)	3 Months Ended		0 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 05, 2015	Feb. 12, 2015
	property	property
Real Estate Acquisition [Line Items]
Number of acquisitions	2	0
First Financial Plaza [Member]
Real Estate Acquisition [Line Items]
Area of real estate property acquired			227,000
Price of real estate acquired			$92.40
Price paid for real estate acquired per square foot			407
Harbor Court Land [Member]
Real Estate Acquisition [Line Items]
Price of real estate acquired				27.5
Accretion of above-market ground lease recorded in other income	-6.6

Acquired_Lease_Intangibles_Sum

Acquired Lease Intangibles (Summary Of Acquired Lease Intangibles) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired lease intangible assets, net	$5,238,000		$3,527,000
Acquired lease intangible liabilities, net	38,661,000		45,959,000
Net accretion of above- and below-market tenant leases recorded in rental income	3,200,000	3,500,000
Net accretion of above- and below-market ground leases recorded in rental expense	13,000	45,000
Net amortization of acquired lease intangibles recorded as rental income	19,000	15,000
Above Market Tenant Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, assets	4,883,000		3,040,000
Accumulated amortization	-2,195,000		-2,082,000
Cost and accumulated accretion for above-market ground lease written off the balance sheet	10,000,000
Below Market Ground Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, assets	3,198,000		3,198,000
Accumulated amortization	-648,000		-629,000
Below Market Tenant Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, liabilities	140,721,000		138,088,000
Accumulated accretion	-105,655,000		-102,335,000
Above Market Ground Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Off-market lease, liabilities	6,160,000		16,200,000
Accumulated accretion	-2,565,000		-5,994,000
Harbor Court Land [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Accretion of above-market ground lease recorded in other income	($6,600,000)

Other_Assets_Schedule_Of_Other

Other Assets (Schedule Of Other Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Feb. 28, 2014
In Thousands, unless otherwise specified
Other Assets [Abstract]
Deferred loan costs, net of accumulated amortization of $14,801 and $13,042 at March 31, 2015 and December 31, 2014, respectively (1)	$14,810	$15,623
Note receivable	0	27,500	27,500
Restricted cash	194	194
Prepaid expenses	5,216	6,108
Other indefinite-lived intangible	1,988	1,988
Deposits in escrow	0	2,500
Other	3,041	3,357
Total other assets	25,249	57,270
Accumulated amortization of deferred loan costs	$14,801	$13,042

Other_Assets_Narrative_Details

Other Assets (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended
	Feb. 12, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Feb. 28, 2014
Business Acquisition [Line Items]
Amortization of deferred loan costs		$1,773,000	$1,000,000
Note receivable		0		27,500,000	27,500,000
Proceeds from repayment of note receivable	1,000,000	1,000,000	0
Issuance of operating partnership units in exchange for land and building acquired	1,000,000	1,000,000	0
OP Units issued	34,412
Note receivable, non cash consideration repayment	26,500,000
Harbor Court Land [Member]
Business Acquisition [Line Items]
Price of real estate acquired	$27,500,000

Secured_Notes_Payable_and_Revo2

Secured Notes Payable and Revolving Credit Facility(Schedule Of Secured Notes Payable and Revolving Credit Facility) (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Apr. 15, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Aggregate term loan principal	$3,355,466,000		$3,253,290,000
Total future principal payments	3,503,466,000		3,435,290,000
Basis spread	1.40%
Weighted average remaining life of outstanding term debt	3 years 11 months
Debt at fixed interest rate	3,070,000,000
Weighted average remaining life of interest rate swaps and fixed rate debt (in years)	4 years 0 months
Weighted average interest rate for fixed & effectively fixed rate debt	4.04%
Effective weighted average interest rate for fixed & effectively fixed rate debt	4.16%
Ownership percentage in joint ventures	66.67%
Fixed Interest Rate Loan [Member]
Debt Instrument [Line Items]
Weighted average life of fixed interest rate on effectively fixed & fixed rate debt	2 years 2 months
Effective Fixed Rate Loans [Member]
Debt Instrument [Line Items]
Total future principal payments	1,930,480,000		1,828,080,000
Effective Annual Fixed Interest Rate	3.98%
Fixed Rate Loans [Member]
Debt Instrument [Line Items]
Total future principal payments	1,143,846,000		1,144,070,000
Effective Annual Fixed Interest Rate	4.15%
Variable Rate Loans [Member]
Debt Instrument [Line Items]
Total future principal payments	429,140,000		463,140,000
Term Loan With Maturity Date Of 12/24/2015 [Member]
Debt Instrument [Line Items]
Maturity Date	24-Dec-15
Total future principal payments	20,000,000		20,000,000
Variable Interest Rate	LIBOR + 1.45%
DEG III term loan debt with maturity date of 3/1/16 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Mar-16
Total future principal payments	16,140,000		16,140,000
Variable Interest Rate	LIBOR + 1.60%
Ownership percentage in joint ventures	66.67%
Term Loan With Maturity Date 3/1/2016 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Mar-16
Total future principal payments	82,000,000		82,000,000
Variable Interest Rate	LIBOR + 0.62%
Term Loan With Maturity Date 6/1/2017 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Jun-17
Total future principal payments	18,000,000		18,000,000
Variable Interest Rate	LIBOR + 0.62%
Term Loan With Maturity Date 10/2/2017 [Member]
Debt Instrument [Line Items]
Maturity Date	2-Oct-17
Total future principal payments	400,000,000		400,000,000
Variable Interest Rate	LIBOR + 2.00%
Derivative, Fixed Interest Rate			4.45%
Swap Maturity Date	1-Jul-15
Secured loan amount	400,000,000
Term Loan With Maturity Date 4/2/2018 [Member]
Debt Instrument [Line Items]
Maturity Date	2-Apr-18
Total future principal payments	510,000,000		510,000,000
Variable Interest Rate	LIBOR + 2.00%
Derivative, Fixed Interest Rate			4.12%
Swap Maturity Date	1-Apr-16
Term Loan With Maturity Date 8/1/2018 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Aug-18
Total future principal payments	530,000,000		530,000,000
Variable Interest Rate	LIBOR + 1.70%
Derivative, Fixed Interest Rate			3.74%
Swap Maturity Date	1-Aug-16
Term Loan With Maturity Date 8/5/2018 [Member]
Debt Instrument [Line Items]
Maturity Date	5-Aug-18
Total future principal payments	355,000,000		355,000,000
Long-term Debt, Fixed Interest Rate			4.14%
Debt instrument period of monthly interest-only payments end date	5-Feb-16
Fixed rate debt amortization period	30 years
Term Loan With Maturity Date 2/1/2019 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Feb-19
Total future principal payments	154,776,000		155,000,000
Long-term Debt, Fixed Interest Rate			4.00%
Fixed rate debt amortization period	30 years
Term Loan With Maturity Date 6/5/2019 [Member]
Debt Instrument [Line Items]
Maturity Date	5-Jun-19
Total future principal payments	285,000,000		285,000,000
Long-term Debt, Fixed Interest Rate			3.85%
Debt instrument period of monthly interest-only payments end date	5-Feb-17
Fixed rate debt amortization period	30 years
Term Loan With Maturity Date Of 10/1/2019 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Oct-19
Total future principal payments	145,000,000		145,000,000
Variable Interest Rate	LIBOR + 1.25%
Term Loan With Maturity Date 3/1/2020 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Mar-20
Total future principal payments	349,070,000		349,070,000
Long-term Debt, Fixed Interest Rate			4.46%
Debt instrument period of monthly interest-only payments end date	1-May-16
Debt instrument period of fixed interest end date	1-Mar-18
Fixed rate debt amortization period	30 years
Number of one-year extension options	2
Term Loan With Maturity Date 11/2/2020 [Member]
Debt Instrument [Line Items]
Maturity Date	2-Nov-20
Total future principal payments	388,080,000		388,080,000
Variable Interest Rate	LIBOR + 1.65%
Derivative, Fixed Interest Rate			3.65%
Swap Maturity Date	1-Nov-17
Term Loan With Maturity Date Of 4/1/2025 [Member]
Debt Instrument [Line Items]
Maturity Date	1-Apr-25
Total future principal payments	102,400,000		0
Variable Interest Rate	LIBOR + 1.25%
Derivative, Fixed Interest Rate			2.84%
Swap Maturity Date	1-Mar-20
Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Maturity Date	11-Dec-17
Revolving credit line	148,000,000		182,000,000
Variable Interest Rate	LIBOR + 1.40%
Maximum borrowing capacity	300,000,000
Line of credit facility, collateral	3 separate collateral pools consisting of a total of 6 properties
Number of collateral pools	3
Number of properties in collateral pools	6
LIBOR [Member] | Term Loan With Maturity Date Of 12/24/2015 [Member]
Debt Instrument [Line Items]
Basis spread	1.45%
LIBOR [Member] | DEG III term loan debt with maturity date of 3/1/16 [Member]
Debt Instrument [Line Items]
Basis spread	1.60%
LIBOR [Member] | Term Loan With Maturity Date 3/1/2016 [Member]
Debt Instrument [Line Items]
Basis spread	0.62%
LIBOR [Member] | Term Loan With Maturity Date 6/1/2017 [Member]
Debt Instrument [Line Items]
Basis spread	0.62%
LIBOR [Member] | Term Loan With Maturity Date 10/2/2017 [Member]
Debt Instrument [Line Items]
Basis spread	2.00%
LIBOR [Member] | Term Loan With Maturity Date 4/2/2018 [Member]
Debt Instrument [Line Items]
Basis spread	2.00%
LIBOR [Member] | Term Loan With Maturity Date 8/1/2018 [Member]
Debt Instrument [Line Items]
Basis spread	1.70%
LIBOR [Member] | Term Loan With Maturity Date Of 10/1/2019 [Member]
Debt Instrument [Line Items]
Basis spread	1.25%
LIBOR [Member] | Term Loan With Maturity Date 11/2/2020 [Member]
Debt Instrument [Line Items]
Basis spread	1.65%
LIBOR [Member] | Term Loan With Maturity Date Of 4/1/2025 [Member]
Debt Instrument [Line Items]
Basis spread	1.25%
LIBOR [Member] | Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Basis spread	1.40%
outstanding principal is greater than $100,000,000 [Member] | Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Unused commitment fees	0.15%
outstanding principal is less than $100,000,000 [Member] | Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Unused commitment fees	0.20%
Subsequent Event [Member] | Term Loan With Maturity Date 10/2/2017 [Member]
Debt Instrument [Line Items]
Repayment of debt		140,000,000
Subsequent Event [Member] | Term Loan With Maturity Date 04/15/2022 [Member]
Debt Instrument [Line Items]
Secured loan amount		$340,000,000
Number of properties in collateral pools		6
Subsequent Event [Member] | LIBOR [Member] | Term Loan With Maturity Date 04/15/2022 [Member]
Debt Instrument [Line Items]
Basis spread		1.40%
Interest Rate Swap [Member] | Subsequent Event [Member] | Term Loan With Maturity Date 04/15/2022 [Member]
Debt Instrument [Line Items]
Derivative, Fixed Interest Rate		2.77%

Secured_Notes_Payable_and_Revo3

Secured Notes Payable and Revolving Credit Faciility (Schedule Of Minimum Future Principal Payments Due On Secured Notes Payable) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Secured Debt [Abstract]
2016	$121,378
2017	14,150
2018	924,828
2019	1,533,589
2020	419,041
Thereafter	490,480
Total future principal payments	$3,503,466	$3,435,290

Interest_Payable_Accounts_Paya2

Interest Payable, Accounts Payable and Deferred Revenue (Schedule Of Accounts Payable And Accrued Liabilities) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts Payable and Accrued Liabilities [Abstract]
Interest payable	$9,878	$9,656
Accounts payable and accrued liabilities	32,722	22,195
Deferred revenue	20,540	22,513
Total interest payable, accounts payable and deferred revenue	$63,140	$54,364

Derivative_Contracts_Interest_

Derivative Contracts (Interest Rate Derivatives Designated As Hedging Instruments) (Details) (Interest Rate Swap [Member], USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified	instrument
Parent [Member]
Derivative [Line Items]
Number of Instruments	8
Notional	$1,930,480
Fund X [Member]
Derivative [Line Items]
Number of Instruments	1
Notional	$325,000

Derivative_Contracts_Interest_1

Derivative Contracts (Interest Rate Derivatives Non-Designated As Hedging Instruments) (Details) (Parent [Member], Purchased Caps, USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified	instrument
Parent [Member] | Purchased Caps
Derivative [Line Items]
Number of Instruments	3
Notional	$18,000

Derivative_Contracts_Narrative

Derivative Contracts (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Parent [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value derivatives, net liability position	$38,800,000	$41,000,000
Derivative designated as cash flow hedge to be reclassified	28,300,000
Fund X [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative designated as cash flow hedge to be reclassified	$570,000

Derivative_Contracts_Effect_Of

Derivative Contracts (Effect Of Derivative Instruments On Consolidated Statements Of Operations) (Details) (Cash Flow Hedging [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Parent [Member] | Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Gain (loss) recognized in other comprehensive income (OCI) (effective portion)	($7,022)	($3,382)
Amount of loss reclassified from AOCI into earnings under interest expense (effective portion)	-9,133	-9,067
Parent [Member] | Interest Expense [Member] | Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Loss reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	0	-21
Gain (loss) on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	0	0
Parent [Member] | Interest Expense [Member] | Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Realized and unrealized gain (loss) recognized as interest expense	0	0
Fund X [Member] | Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Gain (loss) recognized in other comprehensive income (OCI) (effective portion)	-1,333	-499
Amount of loss reclassified from AOCI into earnings under interest expense (effective portion)	($240)	($244)

Equity_Narrative_Details

Equity (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended
	Feb. 12, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Number of operating partnership units converted to shares of common stock		900,000	1,100,000
Number of shares issued for option exercises		136,000
Net proceeds from exercise of options		$1,823,000	$0
Average pricer per share for exercise of options (usd per share)		$13.44
OP Units issued	34,412
Issuance of operating partnership units in exchange for land and building acquired	1,000,000	1,000,000	0
Number of operating partnership units redeemed for cash			120,000
Total purchase price			2,827,000
Average redemption price (usd per share)			$23.56
Common stock options settled			539,000
Purchase price of stock options		0	2,854,000
Average purchase price of options (usd per share)			$5.30
Common stock, shares outstanding		145,859,001		144,869,101
Number of OP units and fully-vested LTIP units outstanding		26,800,000
Noncontrolling interest, ownership percentage by noncontrolling owners		16.00%
Number of shares of common stock issued upon redemption of one OP unit		1
Ownership percentage in joint ventures		66.67%
Non-cash amortization of equity compensation		1,947,000	1,364,000
Capitalized equity compensation		193,000	133,000
Intrinsic value of options exercised		2,200,000
Intrinsic value of options exercised and repurchased			$2,800,000

Equity_Condensed_Consolidated_

Equity (Condensed Consolidated Statements Of Equity) (Details) (USD $)	0 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Feb. 12, 2015	Mar. 31, 2015	Mar. 31, 2014
Equity [Line Items]
Douglas Emmett, Inc. Stockholders' Equity, Beginning Balance		$1,943,458
Noncontrolling Interests, Beginning Balance		370,266
Total Equity, Beginning Balance		2,313,724	2,367,208
Net income attributable to common stockholders		18,699	12,976
Noncontrolling Interests, Net Income		3,397	2,482
Net income		22,096	15,458
Cash flow hedge adjustment		1,018	5,451
Contributions			250
Dividends and distributions		-36,625	-34,693
Repurchase of stock options		0	-2,854
Exchange of operating partnership units		0	0
Repurchase of operating partnership units			-2,827
Issuance of operating partnership units for cash	1,000	1,000	0
Stock Issued During Period, Value, Stock Options Exercised		1,823
Equity compensation		2,155	1,497
Douglas Emmett, Inc. Stockholders' Equity, Ending Balance		1,945,443
Noncontrolling Interests, Ending Balance		359,748
Total Equity, Ending Balance		2,305,191	2,349,490
Douglas Emmett Inc Stockholders Equity [Member]
Equity [Line Items]
Douglas Emmett, Inc. Stockholders' Equity, Beginning Balance		1,943,458	1,970,397
Net income attributable to common stockholders		18,699	12,976
Cash flow hedge adjustment		685	4,152
Contributions			0
Dividends and distributions		-30,630	-28,735
Repurchase of stock options			-2,854
Exchange of operating partnership units		11,408	14,384
Repurchase of operating partnership units			-1,197
Issuance of operating partnership units for cash		0
Stock Issued During Period, Value, Stock Options Exercised		1,823
Equity compensation		0	0
Douglas Emmett, Inc. Stockholders' Equity, Ending Balance		1,945,443	1,969,123
Noncontrolling Interest [Member]
Equity [Line Items]
Noncontrolling Interests, Beginning Balance		370,266	396,811
Noncontrolling Interests, Net Income		3,397	2,482
Cash flow hedge adjustment		333	1,299
Contributions			250
Dividends and distributions		-5,995	-5,958
Repurchase of stock options			0
Exchange of operating partnership units		-11,408	-14,384
Repurchase of operating partnership units			-1,630
Issuance of operating partnership units for cash		1,000
Stock Issued During Period, Value, Stock Options Exercised		0
Equity compensation		2,155	1,497
Noncontrolling Interests, Ending Balance		$359,748	$380,367

Equity_Net_Income_Attributable

Equity (Net Income Attributable To Common Stockholders And Transfers (To) From Noncontrolling Interests) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Stockholders' Equity Note [Abstract]
Net income attributable to common stockholders	$18,699	$12,976
Increase in common stockholders paid-in capital for redemption of operating partnership units	11,400	14,373
Change from net income attributable to common stockholders and transfers from noncontrolling interests	$30,099	$27,349

Equity_Accumulated_Other_Compr

Equity Accumulated Other Comprehensive Income Schedule (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	($30,089)
Net current period OCI	1,018	5,451
Ending balance	-29,404
Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive loss before reclassifications	-7,022	-3,382
Reclassifications from AOCI	9,133	9,088
Fund X [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive loss before reclassifications	-1,333	-499
Reclassifications from AOCI	240	244
Cash Flow Hedging [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	-30,089	-50,554
Net current period OCI	1,018	5,451
Less OCI attributable to noncontrolling interests	-333	-1,299
OCI attributable to common stockholders	685	4,152
Ending balance	($29,404)	($46,402)

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income attributable to common stockholders	$18,699	$12,976
Allocation to participating securities: Unvested LTIP units	-116	-59
Numerator for basic and diluted net income attributable to common stockholders	$18,583	$12,917
Weighted average shares of common stock outstanding - basic	145,327	143,140
Effect of dilutive securities(1): Stock options	4,475	3,721
Weighted average shares of common stock and common stock equivalents outstanding - diluted	149,802	146,861
Net income attributable to common stockholders per share b basic (usd per share)	$0.13	$0.09
Net income attributable to common stockholders per share b diluted (usd per share)	$0.12	$0.09
Operating Partnership Units and Vested LTIP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of weighted average diluted shares	27,200	28,500
Unvested LTIP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of weighted average diluted shares	503	439

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments Fair Value of Financial Instruments - Estimated Fair Value of Secured Notes Payable (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]
Fair value	$3,406,046	$3,293,351
Carrying value	$3,355,466	$3,253,290

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments Fair Value Table (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, fair value	$35,275	$37,386
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, fair value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, fair value	35,275	37,386
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, fair value	$0	$0

Future_Minimum_Lease_Receipts_1

Future Minimum Lease Receipts (Narrative) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Leases, Future Minimum Payments Receivable [Abstract]
Percentage rental income	$230	$127

Future_Minimum_Lease_Receipts_2

Future Minimum Lease Receipts (Schedule Of Future Minimum Base Rentals On Non-Cancelable Office And Ground Operating Leases) (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Operating Leases, Future Minimum Payments Receivable [Abstract]
2016	$385,884
2017	344,060
2018	295,027
2019	233,142
2020	189,716
Thereafter	500,541
Total future minimum base rentals	$1,948,370

Future_Minimum_Lease_Payments_1

Future Minimum Lease Payments (Narrative) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	ground_lease
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Number Of Ground Leases	2
Ground lease payments	$192	$539

Future_Minimum_Lease_Payments_2

Future Minimum Lease Payments (Future Minimum Ground Lease Payments) (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	$733
2017	733
2018	733
2019	733
2020	733
Thereafter	48,927
Total future minimum lease payments	52,592
Future ground rent payments per year	$733

Commitments_Contingencies_and_1

Commitments, Contingencies and Guarantees (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
			tenant
Other Commitments [Line Items]
Number of tenants accounting for more than 10% of our total rental revenue and tenant recoveries	0		0
Amount accounts are insured for by Federal Deposit Insurance Corporation	$250,000
Loan principal	3,355,466,000	3,253,290,000
Fund X [Member]
Other Commitments [Line Items]
Loan principal	325,000,000
Maturity date	1-May-18
Swap maturity date	1-May-17
Maximum future payments under the swap agreement	$4,100,000
Parent [Member]
Other Commitments [Line Items]
Number of properties containing Asbestos	23
Fund X [Member]
Other Commitments [Line Items]
Number of properties containing Asbestos	4

Segment_Reporting_Segment_Repo

Segment Reporting Segment Reporting (Narrative) (Details)	3 Months Ended
	Mar. 31, 2015
	Business_Segments
Segment Reporting [Abstract]
Number of reportable business segments	2

Segment_Reporting_Operating_Ac

Segment Reporting (Operating Activity Within Reportable Segments) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Total office revenues	$131,456	$129,087
Office expenses	-44,199	-43,356
Total multifamily revenues	23,353	19,789
Multifamily expenses	-5,820	-5,133
Segment profit	104,790	100,387
Office Segment [Member]
Segment Reporting Information [Line Items]
Total office revenues	131,456	129,087
Office expenses	-44,199	-43,356
Segment profit	87,257	85,731
Multifamily Segment [Member]
Segment Reporting Information [Line Items]
Total multifamily revenues	23,353	19,789
Multifamily expenses	-5,820	-5,133
Segment profit	$17,533	$14,656

Segment_Reporting_Reconciliati

Segment Reporting (Reconciliation Of Segment Profit To Net Income Attributable To Common Stockholders) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting [Abstract]
Total profit from all segments	$104,790	$100,387
General and administrative expense	-7,361	-6,811
Depreciation and amortization	-49,834	-50,199
Other income	8,559	4,287
Other expenses	-1,572	-1,453
Income, including depreciation, from unconsolidated real estate funds	1,443	1,113
Interest expense	-33,639	-31,838
Acquisition-related expenses	-290	-28
Net income	22,096	15,458
Less: Net income attributable to noncontrolling interests	-3,397	-2,482
Net income attributable to common stockholders	$18,699	$12,976

Investments_In_Unconsolidated_2

Investments In Unconsolidated Real Estate Funds Narrative (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Apr. 03, 2013
	Number_of_Properties
Schedule of Equity Method Investments [Line Items]
Number of Real Estate Properties	62
Total equity method distributions received	$2.30	$3
Percentage of amounts related to the Fund	100.00%
Partially Owned Properties [Member]
Schedule of Equity Method Investments [Line Items]
Number of Real Estate Funds owned and managed	2
Square footage of real estate property	1,800,000
Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Due from related parties	$1.20		$1.50	$2.90
Partnership X [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	24.25%
Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	68.61%
Partially Owned Properties [Member]
Schedule of Equity Method Investments [Line Items]
Number of Real Estate Properties	8
LIBOR [Member] | Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Variable rate	LIBOR plus 2.5%
Basis spread	2.50%

Investments_In_Unconsolidated_3

Investments In Unconsolidated Real Estate Funds (Summary Of Statement Of Operations For Investments In Unconsolidated Real Estate Funds) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Real Estate Investments, Net [Abstract]
Total revenues	$17,480	$16,355
Operating income	3,814	3,251
Net income	$960	$384

Investments_In_Unconsolidated_4

Investments In Unconsolidated Real Estate Funds (Summary Of Statement Of Financial Position For Investments In Unconsolidated Real Estate Funds) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Real Estate Investments, Net [Abstract]
Total assets	$699,065	$703,130
Total liabilities	389,381	389,413
Total equity	$309,684	$313,717

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Apr. 15, 2015	Dec. 31, 2014
		property
Subsequent Event [Line Items]
Basis spread	1.40%
Term Loan With Maturity Date 04/15/2022 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Secured loan amount		$340,000,000
Number of properties in collateral pools		6
Term Loan With Maturity Date 10/2/2017 [Member]
Subsequent Event [Line Items]
Secured loan amount	400,000,000
Fixed interest rate per annum			4.45%
Term Loan With Maturity Date 10/2/2017 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of debt		$140,000,000
LIBOR [Member] | Term Loan With Maturity Date 04/15/2022 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Basis spread		1.40%
LIBOR [Member] | Term Loan With Maturity Date 10/2/2017 [Member]
Subsequent Event [Line Items]
Basis spread	2.00%
Interest Rate Swap [Member] | Term Loan With Maturity Date 04/15/2022 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Fixed interest rate per annum		2.77%