Douglas Emmett (DEI) 10-K 27 Feb 15 2014 FY Annual report Financial data

DEI_XBRL_Filing_Information

DEI XBRL Filing Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2014	Feb. 20, 2015	Jun. 30, 2014
DEI XBRL Filing 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-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		145,298,143
Entity Public Float			$3.81
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Assets
Land	$900,813		$867,284
Buildings and improvements	5,590,118		5,386,446
Tenant improvements and lease intangibles	666,672		759,003
Investment in real estate, gross	7,157,603		7,012,733
Less: accumulated depreciation and amortization	-1,531,157		-1,495,819
Investment in real estate, net	5,626,446		5,516,914
Cash and cash equivalents	18,823		44,206
Tenant receivables, net	2,143		1,760
Deferred rent receivables, net	74,997		69,662
Acquired lease intangible assets, net	3,527		3,744
Investment in unconsolidated real estate funds	171,390		182,896
Other assets	57,270		28,607
Total assets	5,954,596		5,847,789
Liabilities
Secured notes payable and revolving credit facility	3,435,290	[1]	3,241,140	[1]
Interest payable, accounts payable and deferred revenue	54,364		52,763
Security deposits	37,450		35,470
Acquired lease intangible liabilities, net	45,959		59,543
Interest rate contracts	37,386	[2]	63,144	[2]
Dividends payable	30,423		28,521
Total liabilities	3,640,872		3,480,581
Douglas Emmett, Inc. stockholders' equity:
Common Stock, $0.01 par value 750,000,000 authorized, 144,869,101 and 142,605,390 outstanding at December 31, 2014 and December 31, 2013, respectively	1,449		1,426
Additional paid-in capital	2,678,798		2,653,905
Accumulated other comprehensive income (loss)	-30,089		-50,554
Accumulated deficit	-706,700		-634,380
Total Douglas Emmett, Inc. stockholders' equity	1,943,458		1,970,397
Noncontrolling interests	370,266		396,811
Total equity	2,313,724		2,367,208
Total liabilities and equity	$5,954,596		$5,847,789
[1]	See Note 12 for our fair value disclosures.
[2]	We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares outstanding	144,869,101	142,605,390

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Office rental
Rental revenues	$396,524	$394,739	$391,447
Tenant recoveries	44,461	45,144	44,093
Parking and other income	78,437	74,717	69,736
Total office revenues	519,422	514,600	505,276
Multifamily rental
Rental revenues	74,289	71,209	68,262
Parking and other income	5,828	5,727	5,461
Total multifamily revenues	80,117	76,936	73,723
Total revenues	599,539	591,536	578,999
Operating Expenses:
Office expense	181,177	174,952	170,725
Multifamily expense	20,664	19,928	19,672
General and administrative	27,332	26,614	27,943
Depreciation and amortization	202,512	191,351	184,849
Total operating expenses	431,685	412,845	403,189
Operating income	167,854	178,691	175,810
Other income	17,675	6,402	2,821
Other expenses	-7,095	-4,199	-1,883
Income (loss), including depreciation, from unconsolidated real estate funds	3,713	3,098	-1,710
Interest expense	-128,507	-130,548	-146,693
Acquisition-related expenses	-786	-607	0
Net income	52,854	52,837	28,345
Less: Net income attributable to noncontrolling interests	-8,233	-7,526	-5,403
Net income attributable to common stockholders	$44,621	$45,311	$22,942
Net income attributable to common stockholders per share – basic (usd per share)	$0.31	$0.32	$0.16
Net income attributable to common stockholders per share – diluted (usd per share)	$0.30	$0.31	$0.16

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$52,854	$52,837	$28,345
Other comprehensive income: cash flow hedges	25,045	39,562	10,491
Comprehensive income	77,899	92,399	38,836
Less: comprehensive income attributable to noncontrolling interests	-12,813	-14,651	-9,705
Comprehensive income attributable to common stockholders	$65,086	$77,748	$29,131

Consolidated_Statements_of_Equ

Consolidated Statements of Equity (USD $)	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Noncontrolling Interests
In Thousands, except Share data, unless otherwise specified
Beginning balance at Dec. 31, 2011	$2,315,955	$1,311	$2,461,649	($89,180)	($508,674)	$450,849
Beginning balance, shares at Dec. 31, 2011		131,070,000
Stockholders' Equity [Roll Forward]
Conversion of operating partnership units (in shares)	3,200,000	3,239,000
Issuance of common stock (in shares)	6,900,000	6,937,000
Exercise of stock options (in shares)		0
Conversion of operating partnership units	44,876	32	44,876			-44,908
Issuance of common stock	128,257	69	128,188
Exercise of stock options	0	0	0
Repurchase of operating partnership units	0		0			0
Purchase price of stock options	0		0
Equity compensation	14,177		695			13,482
Cash flow hedge adjustment	10,491			6,189		4,302
Net Income	28,345					5,403
Net Income attributable to common stockholders	22,942				22,942
Dividends	-88,441				-88,441
Contributions	-10					-10
Distributions	-18,315					-18,315
Dividends declared per common share	$0.63
Ending balance at Dec. 31, 2012	2,390,459	1,412	2,635,408	-82,991	-574,173	410,803
Ending balance, shares at Dec. 31, 2012		141,246,000
Stockholders' Equity [Roll Forward]
Conversion of operating partnership units (in shares)	1,400,000	1,359,000
Issuance of common stock (in shares)		0
Exercise of stock options (in shares)		0
Conversion of operating partnership units	18,670	14	18,670			-18,684
Issuance of common stock	0	0	0
Exercise of stock options	0	0	0
Repurchase of operating partnership units	-352		-173			-180
Purchase price of stock options	0		0
Equity compensation	10,805		0			10,805
Cash flow hedge adjustment	39,562			32,437		7,125
Net Income	52,837					7,526
Net Income attributable to common stockholders	45,311				45,311
Dividends	-105,519				-105,518
Contributions	653					653
Distributions	-21,237					-21,237
Dividends declared per common share	$0.74
Ending balance at Dec. 31, 2013	2,367,208	1,426	2,653,905	-50,554	-634,380	396,811
Ending balance, shares at Dec. 31, 2013	142,605,390	142,605,000
Stockholders' Equity [Roll Forward]
Conversion of operating partnership units (in shares)	2,200,000	2,224,000
Issuance of common stock (in shares)		0
Exercise of stock options (in shares)	40,000	40,000
Conversion of operating partnership units	30,013	22	30,013			-30,035
Issuance of common stock	0	0	0
Exercise of stock options	602	1	601
Repurchase of operating partnership units	-2,826		-1,197			-1,629
Purchase price of stock options	4,524		4,524
Equity compensation	14,829		0			14,829
Cash flow hedge adjustment	25,045			20,465		4,580
Net Income	52,854					8,233
Net Income attributable to common stockholders	44,621				44,621
Dividends	-116,941				-116,941
Contributions	290					290
Distributions	-22,813					-22,813
Dividends declared per common share	$0.81
Ending balance at Dec. 31, 2014	$2,313,724	$1,449	$2,678,798	($30,089)	($706,700)	$370,266
Ending balance, shares at Dec. 31, 2014	144,869,101	144,869,000

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Cash Flows [Abstract]
Interest Paid, Capitalized	$294	$75	$0
Operating Activities
Net income	52,854	52,837	28,345
Adjustments to reconcile net income to net cash provided by operating activities:
(Income) loss, including depreciation, from unconsolidated real estate funds	-3,713	-3,098	1,710
Gain from insurance recoveries for damage to real estate	-6,621	-431	0
Depreciation and amortization	202,512	191,351	184,849
Net accretion of acquired lease intangibles	-16,084	-15,693	-18,094
Decrease in the allowance for doubtful accounts	-2,865	-3,988	-4,392
Amortization of deferred loan costs	4,097	4,214	4,211
Amortization of loan premium	0	0	-1,060
Non-cash market value adjustments on interest rate contracts	50	88	8,956
Non-cash amortization of equity compensation	13,722	10,005	10,581
Operating distributions from unconsolidated real estate funds	909	783	752
Change in working capital components:
Tenant receivables	78	-331	4,113
Deferred rent receivables	-2,931	-2,580	-3,841
Interest payable, accounts payable and deferred revenue	2,668	8,816	-6,873
Security deposits	1,980	1,186	330
Other assets	59	383	786
Net cash provided by operating activities	246,715	243,542	210,373
Investing Activities
Capital expenditures for improvements to real estate	-84,444	-66,907	-60,158
Capital expenditures for developments	-4,259	-549	0
Insurance recoveries for damage to real estate	6,506	431	0
Property acquisitions	-220,469	-150,000	0
Deposits for property acquisitions	-2,500	0	0
Note receivable	-27,500	0	0
Loan to related party	0	-2,882	0
Loan payments received from related party	1,187	213	0
Contributions to unconsolidated real estate funds	0	-26,405	-2,604
Acquisitions of additional interests in unconsolidated real estate funds	0	-8,004	-33,454
Capital distributions from unconsolidated real estate funds	11,514	7,518	4,699
Net cash used in investing activities	-319,965	-246,585	-91,517
Financing Activities
Proceeds from borrowings	307,000	40,000	440,000
Deferred loan cost payments	-1,974	-2,596	-2,125
Refund of refundable loan deposit	0	0	1,575
Repayment of borrowings	-112,850	-240,000	-621,956
Contributions by noncontrolling interests	290	653	0
Distributions to noncontrolling interests	-22,813	-21,237	-18,315
Distributions of capital to noncontrolling interests	0	0	-10
Repurchase of stock options	-4,524	0	0
Repurchase of operating partnership units	-2,826	-352	0
Cash dividends to common stockholders	-115,039	-102,422	-80,056
Issuance of common stock, net	0	0	128,257
Exercise of stock options	603	0	0
Net cash provided by (used in) financing activities	47,867	-325,954	-152,630
Decrease in Cash and Cash Equivalents	-25,383	-328,997	-33,774
Cash and Cash Equivalents at Beginning of Year	44,206	373,203	406,977
Cash and Cash Equivalents at End of Year	18,823	44,206	373,203
Supplemental disclosure of cash flow information
Cash paid for interest (net of capitalized interest of $294 and $75 for 2014 and 2013, respectively)	123,673	127,110	134,830
Accrual for capital expenditures for improvements to real estate and developments	1,504	2,455	2,233
Write-off of fully depreciated and amortized tenant improvements and lease intangibles	161,828	0	0
Write-off of fully amortized above-market acquired lease intangible assets	32,230	0	0
Write-off of fully accreted below-market acquired lease intangible liabilities	137,313	0	0
Accrual for dividends payable to common stockholders	30,423	28,521	25,424
Operating Partnership units redeemed with shares of the Company's common stock	$30,035	$18,685	$44,908

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows - Parenthetical (Parentheticals) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Supplemental Cash Flow Elements [Abstract]
Interest Paid, Capitalized	$294	$75	$0

Overview

Overview	12 Months Ended
	Dec. 31, 2014
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 two 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 December 31, 2014, we owned a consolidated portfolio of fifty-three 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. Alongside our consolidated portfolio, we also manage and own equity interests in our Funds which, at December 31, 2014, owned eight additional office properties, for a combined sixty-one 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 financial statements presented 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. Substantially all of our business is conducted through our consolidated operating partnership, in which other investors own a noncontrolling interest. See Note 9. Our business also includes a consolidated joint venture in which our operating partnership owns a two-thirds interest. The balances and results of the property owned by this consolidated joint venture are included in our financial statements.
	The accompanying financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (SEC) in conformity with Generally Accepted Accounting Principles of the United States (GAAP) as established by the Financial Accounting Standards Board (FASB) in the Accounting Standards Codification (ASC), including modifications issued under Accounting Standards Updates (ASUs). The accompanying financial statements include, in our opinion, all adjustments, consisting of normal recurring adjustments, necessary to present fairly the financial information set forth therein. Any reference to the number of properties, square footage and geography, are unaudited and outside the scope of our independent registered public accounting firm’s audit of our financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board.

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	Summary of Significant Accounting Policies
	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.
	Investments in Real Estate
	We account for acquisitions of properties utilizing the purchase method, and include the results of operations of the acquired properties in our results of operations from their respective dates of acquisition. We expense transaction costs related to acquisitions when they are incurred.
	When we acquire a property, we determine the fair values of the tangible assets on an ‘‘as-if-vacant’’ basis. We use estimates of future cash flows, comparable sales, other relevant information obtained in connection with the acquisition of the property, and other valuation techniques to allocate the purchase price of each acquired property between land, buildings and improvements, tenant improvements and leasing costs, and identifiable intangible assets and liabilities such as amounts related to in-place at-market leases, acquired above- and below-market tenant leases, and acquired above- and below-market ground leases.
	The estimated fair value of acquired in-place at-market tenant leases represents the estimated costs that we would have incurred to lease the property to the occupancy level of the property at the date of acquisition, including the fair value of leasing commissions and legal costs. Additionally, we evaluate the time period over which such occupancy level would be achieved and include an estimate of the net operating costs (primarily real estate taxes, insurance and utilities) incurred during the lease-up period. We record above-market and below-market in-place lease intangibles as an asset or liability based on the present value (using a discount rate which reflects the risks associated with the leases acquired) of the difference between the contractual amounts to be received or paid pursuant to the in-place tenant or ground leases, respectively, and our estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. Our initial valuations and allocations are subject to change until the allocation is finalized within 12 months after the acquisition date. See Note 3 for our property acquisition disclosures.
	Buildings and site improvements are depreciated on a straight-line basis using an estimated life of forty years for buildings and fifteen years for site improvements. We carry buildings and site improvements, offset by the related accumulated depreciation, on our balance sheet until they are either sold or impaired.
	Tenant improvements are depreciated over the life of the related lease, with any remaining balance depreciated in the period of any early termination of that lease. During 2014, we removed the cost and accumulated depreciation of $79.2 million of fully depreciated tenant improvements determined to be no longer in use from our balance sheet.
	Acquired in-place leases are amortized on a straight line basis over the weighted average remaining term of the acquired in-place leases. We carry acquired in-place leases, offset by the related accumulated amortization, on our balance sheet until the related building is either sold or impaired.
	Leasing intangibles are amortized on a straight-line basis over the related lease term, with any remaining balance amortized in the period of any early termination of that lease. During 2014, we removed the cost and accumulated amortization of $82.6 million of fully amortized leasing intangibles from our balance sheet.
	Acquired above- and below-market tenant leases are amortized over the life of the related lease and recorded as either an increase (for below-market leases) or a decrease (for above-market leases) to rental income. Acquired above- and below-market ground leases are amortized over the life of the lease and recorded either as an increase (for below-market leases) or a decrease (for above-market leases) to revenue. During 2014, we removed the cost and accumulated amortization/accretion of $32.2 million of fully amortized above-market tenant leases and $137.3 million of fully accreted below-market tenant leases from our balance sheet.
	When assets are sold or retired, their cost and related accumulated depreciation or amortization are removed from our balance sheet with the resulting gains or losses, if any, reflected in discontinued operations for the respective period. Repairs and maintenance are recorded as expense when incurred.
	Interest, insurance, property taxes and other costs incurred during the period of construction of real estate are capitalized. Cost capitalization of development and redevelopment activities begins during the predevelopment period, which we define as activities that are necessary for the development of the property.  We cease capitalization upon substantial completion of the project, but no later than one year from cessation of major construction activity.  We also cease capitalization when activities necessary to prepare the property for its intended use have been suspended. During 2014 and 2013, we capitalized $4.3 million and $549 thousand of costs related to our multifamily developments in Honolulu and Brentwood, respectively, which includes $294 thousand and $75 thousand of capitalized interest expense, respectively. We did not capitalize any costs during 2012 related to development or redevelopment activities.
	Investment in Unconsolidated Real Estate Funds
	At December 31, 2014, we managed and held equity interests in two Funds: Fund X and Partnership X. We held a 68.61% interest in Fund X, and an aggregate 24.25% interest in the properties held by Partnership X and its subsidiaries. We account for our investments in the Funds using the equity method because we have significant influence but not control over the entities and our Funds do not qualify as variable interest entities. Our investment balance represents our share of the net assets of the combined Funds, additional basis of approximately $2.9 million (primarily due to the inclusion of the cost of raising capital that is accounted for as part of our investment basis), and a note receivable with an outstanding balance of $1.5 million. See Note 18.
	Impairment of Long-Lived Assets
	We assess whether there has been impairment in the value of our long-lived assets whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount to the undiscounted future cash flows expected to be generated by the asset. If the current carrying value exceeds the estimated undiscounted cash flows, an impairment loss is recorded equal to the difference between the asset’s current carrying value and its fair value based on the discounted estimated future cash flows. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell. Based upon such periodic assessments, no impairments occurred during 2014, 2013 or 2012.
	We assess whether there has been impairment in the value of our investments in our Funds periodically. An impairment charge is recorded when events or change in circumstances indicate that a decline in the fair value below the carrying value has occurred and such decline is other-than-temporary. The ultimate realization of the investments in our Funds is dependent on a number of factors, including the performance of the investment and market conditions. We will record an impairment charge if we determine that a decline in the value of an investment in one of our Funds is other-than-temporary.  Based upon such periodic assessments, no impairment occurred during 2014, 2013 or 2012.
	An asset is classified as an asset held for sale when it meets certain requirements, including the approval of the sale of the asset, the marketing of the asset for sale, and our expectation that the sale will likely occur within the next 12 months. Upon classification of an asset as held for disposition, the net book value of the asset, excluding long-term debt, is included on the balance sheet as properties held for disposition, we cease to depreciate the asset, and the operating results of the asset are included in discontinued operations for all periods presented. As of December 31, 2014, we did not have any assets classified as held for sale.
	Cash and Cash Equivalents
	For purposes of the consolidated statements of cash flows, we consider short-term investments with maturities of three months or less when purchased to be cash equivalents.
	Revenue and Gain Recognition
	Four basic criteria must be met before revenue can be recognized: persuasive evidence of an arrangement exists; services are rendered; the fee is fixed and determinable; and collectibility is reasonably assured. All leases are classified as operating leases. For all lease terms exceeding one year, rental income is recognized on a straight-line basis over the term of the lease. Deferred rent receivables represent rental revenue recognized on a straight-line basis in excess of billed rents. Lease termination fees, which are included in rental revenues in the accompanying consolidated statements of operations, are recognized when the related lease is canceled and we have no continuing obligation to provide services to such former tenant. We recorded total lease termination revenue of $2.6 million for 2014, $576 thousand for 2013 and $985 thousand for 2012.
	Estimated recoveries from tenants for real estate taxes, common area maintenance and other recoverable operating expenses are recognized as revenues in the period that the expenses are incurred. Subsequent to year-end, we perform reconciliations on a lease-by-lease basis and bill or credit each tenant for any cumulative annual adjustments. In addition, we record a tenant improvement and deferred revenue for leasehold improvements constructed by us that are reimbursed by tenants. The deferred revenue is amortized as additional rental revenue over the related lease term. Rental revenue from month-to-month leases or leases with no scheduled rent increases or other adjustments is recognized on a monthly basis when earned.
	The recognition of gains on sales of real estate requires that we measure the timing of a sale against various criteria related to the terms of the transaction, as well as any continuing involvement in the form of management or financial assistance associated with the property. If the sales criteria are not met, we defer gain recognition and account for the continued operations of the property by applying the finance, profit-sharing or leasing method. If the sales criteria have been met, we further analyze whether profit recognition is appropriate using the full accrual method. If the criteria to recognize profit using the full accrual method have not been met, we defer the gain and recognize it when the criteria are met or use the installment or cost recovery method as appropriate under the circumstances.
	Monitoring of Rents and Other Receivables
	We maintain an allowance for estimated losses that may result from the inability of tenants to make required payments. If a tenant fails to make contractual payments beyond any allowance, we may recognize bad debt expense in future periods equal to the amount of unpaid rent and deferred rent. We take into consideration many factors to evaluate the level of reserves necessary, including historical termination/default activity and current economic conditions. As of December 31, 2014 and 2013, we had an allowance for doubtful accounts of $7.8 million and $10.7 million, respectively.
	We generally do not require collateral or other security from our tenants other than letters of credit or cash security deposits. As of December 31, 2014 and 2013, we had a total of approximately $14.7 million and $17.0 million, respectively, of letters of credit held for security, as well as $37.5 million and $35.5 million, respectively, of cash security deposits.
	Insurance Recoveries
	The amount by which insurance recoveries related to property damage exceed any losses recognized from that damage are recorded as other income when payment is either received or receipt is determined to be probable.
	Interest Income
	Interest income on our notes receivable is recognized over the life of the respective notes using the effective interest method and recognized on the accrual basis. Interest income is included in other income in the consolidated statements of operations. See Notes 5 and 18.
	Deferred Loan Costs
	Costs incurred directly with the issuance of secured notes payable are capitalized and amortized to interest expense over the respective loan term. Any unamortized amounts are fully amortized upon early repayment of secured notes payable, and the related cost and accumulated amortization are removed from our balance sheet. Deferred loan costs are included in other assets in the consolidated balance sheets. See Note 5.
	Interest Rate Agreements
	We generally manage our interest rate risk associated with floating rate borrowings by entering into interest rate swap and interest rate cap contracts. The interest rate swap agreements that we utilize effectively modify our exposure to interest rate risk by converting our floating-rate debt to a fixed-rate basis, thus reducing the impact of interest-rate changes on future interest expense. These agreements involve the receipt of floating-rate amounts in exchange for fixed-rate interest payments over the life of the agreements without an exchange of the underlying principal amount. We do not use any other derivative instruments.
	We record all derivatives on the balance sheet at fair value on a gross basis. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, are considered to be fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered to be cash flow hedges.
	Our objective in using derivatives is to add stability to interest expense and to manage our exposure to interest rate movements and other identified risks. To accomplish this objective, we primarily use interest rate swaps as part of our cash flow hedging strategy. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are initially reported in other comprehensive income (a component of equity outside of earnings) and subsequently reclassified to earnings when the hedged transaction affects earnings. The ineffective portion of changes in the fair value of the derivative are recognized directly in earnings. We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows of the derivative hedging instrument with the changes in fair value or cash flows of the designated hedged item or transaction. For derivatives not designated as hedges, changes in fair value are recognized directly in earnings. The fair value of these hedges is obtained through independent third-party valuation sources that use conventional valuation algorithms. See Note 8.
	Stock-Based Compensation
	We account for stock-based compensation, including stock options and long-term incentive plan units, using the fair value method of accounting. The estimated fair value of the stock options and the long-term incentive units is amortized over their respective vesting periods. See Note 11.
	Earnings Per Share
	Basic earnings per share is calculated by dividing the net income attributable to common stockholders for the period by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated 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. See Note 10.
	Segment Information
	Segment information is prepared on the same basis that our management reviews information for operational decision-making purposes. We operate two business segments: the acquisition, development, ownership and management of office real estate, and the acquisition, development, ownership and management of multifamily real estate.
	The products for our office segment include primarily rental of office space and other tenant services, including parking and storage space rental. The products for our multifamily segment include primarily rental of apartments and other tenant services, including parking and storage space rental. See Note 16.
	Income Taxes
	We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (IRC), commencing with our initial taxable year ending December 31, 2006. To qualify as a REIT, we are required (among other things) to distribute at least 90% of our REIT taxable income to our stockholders and meet the various other requirements imposed by the IRC relating to matters such as operating results, asset holdings, distribution levels and diversity of stock ownership. 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. If we fail to qualify as a REIT in any taxable year, and were unable to avail ourselves of certain savings provisions set forth in the IRC, all of our taxable income would be subject to federal income tax at regular corporate rates, including any applicable alternative minimum tax.
	In addition, we are subject to taxation by various state and local jurisdictions, including those in which we transact business or reside. Our non taxable REIT subsidiaries, including our operating partnership, are either partnerships or disregarded entities for federal income tax purposes. Under applicable federal and state income tax rules, the allocated share of net income or loss from disregarded entities (including limited partnerships and S-Corporations) is reportable in the income tax returns of the respective partners and stockholders. Accordingly, no income tax provision is included in the accompanying consolidated financial statements.
	We have elected to treat two of our subsidiaries as taxable REIT subsidiaries (TRS) which generally may engage in any business, including the provision of customary or non-customary services for our tenants. A TRS is treated as a regular corporation and is subject to federal income tax and applicable state income and franchise taxes at regular corporate rates.  Our TRS subsidiaries did not have significant tax provisions or deferred income tax items for 2014, 2013 or 2012.
	New Accounting Pronouncements
	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 February 2013, the FASB issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date (Topic 405), which provides guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this ASU is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, which for us was the first quarter of 2014. We adopted ASU No. 2013-04 during the first quarter of 2014, and it did not have a material impact on our financial position or results of operations, as we do not currently have any obligations within the scope of this ASU.
	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 Update 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 is the first quarter of 2015. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. We do not expect this ASU to have a material impact on our financial position or results of operations.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which provides guidance for the accounting of revenue from contracts with customers. The guidance supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the Codification. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, which for us is the first quarter of 2017. Early adoption is not permitted. We do not expect this ASU to have a material impact on our financial position or results of operations, as lease contracts are not within the scope of this ASU.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40), which provides guidance about management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures if necessary. The ASU is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter, which for us is the fiscal year ended December 31, 2016. Early application is permitted. We do not expect this ASU to have a material impact on our disclosures.
	In November 2014, the FASB issued ASU No. 2014-17, Pushdown Accounting (Topic 805), which provides guidance regarding pushdown accounting for acquired entities when an acquirer obtains control of the acquired entity. The objective of this ASU is to provide guidance on whether and at what threshold an acquired entity can apply pushdown accounting in its separate financial statements. The ASU was effective on November 18, 2014. We do not expect this ASU to have a material impact on our financial position or results of operations.
	In January 2015, the FASB issued ASU No. 2015-01, Income Statement—Extraordinary and Unusual Items (Subtopic 225-20), which eliminates from GAAP the concept of extraordinary items. The Board is issuing this Update as part of its initiative to reduce complexity in accounting standards (the Simplification Initiative). The objective of the Simplification Initiative is to identify, evaluate, and improve areas of generally accepted accounting principles (GAAP) for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to the users of financial statements. The amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015, which for us is the first quarter of 2016. A reporting entity may apply the amendments prospectively or retrospectively to all prior periods presented in the financial statements, and early adoption is permitted. We do not expect this ASU to have a material impact on our disclosures.
	In February 2015, the FASB issued ASU No. 2015-02, Amendments to the Consolidation Analysis (Consolidation - Topic 810), which provides guidance regarding the consolidation of certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. The amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015, which for us is the first quarter of 2016. Early adoption is permitted, including adoption in an interim period. We are currently evaluating the impact of this ASU.
	The FASB has not issued any other ASUs during 2014 or 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	12 Months Ended
	Dec. 31, 2014
Investment In Real Estate [Abstract]
Investment in Real Estate	Investment in Real Estate
	2014 Acquisitions
	During 2014, we made two acquisitions: on October 16, 2014, we purchased a 216 thousand square foot Class A multi-tenant office property located adjacent to Beverly Hills (Carthay Campus) for $74.5 million, or approximately $345 per square foot, and on December 30, 2014, we purchased a 468 unit multifamily property in Honolulu, Hawaii (Waena) for $146.0 million, or approximately $312 thousand per unit. The results of operations for these acquired properties 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 acquired properties (these allocations are subject to adjustment within twelve months of the acquisition date):
		Carthay Campus			Waena
	Investment in real estate:
	Land	$	6,595		$	26,864
	Buildings and improvements	64,511			117,541
	Tenant improvements and lease intangibles	5,943			1,732
	Acquired above and below-market leases, net	(2,580		)	(137		)
	Net assets and liabilities acquired	$	74,469		$	146,000
	2013 Acquisitions
	During 2013, we made two acquisitions: on May 15, 2013, we purchased a 225 thousand square foot Class A multi-tenant office property located in Beverly Hills (8484 Wilshire) for $89.0 million, or approximately $395 per square foot, and on August 15, 2013, we purchased a 191 thousand square foot Class A multi-tenant office property located in Encino (16501 Ventura) for $61.0 million, or approximately $319 per square foot. The results of operations for these acquired properties are included in our consolidated statements of operations after the respective date of their acquisitions.
	The table below (in thousands) summarizes our purchase price allocations for the acquired properties:
		8484 Wilshire			16501 Ventura
	Investment in real estate:
	Land	$	8,847		$	6,759
	Buildings and improvements	77,158			55,179
	Tenant improvements and lease intangibles	6,485			4,736
	Acquired above and below-market leases, net	(3,490		)	(5,674		)
	Net assets and liabilities acquired	$	89,000		$	61,000
	2012 Acquisitions
	We did not acquire any properties during 2012.

Acquired_Lease_Intangibles

Acquired Lease Intangibles	12 Months Ended
	Dec. 31, 2014
Acquired Lease Intangibles [Abstract]
Acquired Lease Intangibles	Acquired Lease Intangibles
	The following summarizes (in thousands) our acquired lease intangibles related to above and below-market leases as of December 31:
			2014			2013
	Above-market tenant leases(1)		$	3,040		$	34,997
	Accumulated amortization(1)		(2,082		)	(33,899		)
	Below-market ground leases		3,198			3,198
	Accumulated amortization		(629		)	(552		)
	Acquired lease intangible assets, net		$	3,527		$	3,744
	Below-market tenant leases(2)		$	138,088		$	272,413
	Accumulated accretion(2)		(102,335		)	(225,425		)
	Above-market ground leases		16,200			16,200
	Accumulated accretion		(5,994		)	(3,645		)
	Acquired lease intangible liabilities, net		$	45,959		$	59,543
	________________________________________
	-1	During 2014, we removed the cost and accumulated amortization of $32.2 million of fully amortized above-market tenant leases from our balance sheet. December 31, 2013 balances include $31.1 million of fully amortized above-market tenant leases.
	-2	During 2014, we removed the cost and accumulated accretion of $137.3 million of fully accreted below-market tenant leases from our balance sheet. December 31, 2013 balances include $131.1 million of fully accreted below-market tenant leases.
	Net accretion of above- and below-market tenant leases recorded as an increase to rental income totaled $13.9 million in 2014, $15.7 million in 2013 and $18.1 million in 2012. Net accretion of above- and below-market ground leases recorded as an increased to other income totaled $2.2 million in 2014, and decreased office rental operating expense by $122 thousand for 2014, 2013 and 2012.
	The accretion of an above-market ground lease of $2.2 million that we recognized in other income in 2014 resulted from a change in estimate regarding the acquisition of the related fee interest. We expect that an additional $6.6 million of accretion will be recognized in other income in the first quarter of 2015. The impact on our basic and diluted EPS for 2014 was 2 cents per share and 1 cent per share respectively. See Note 19.
	The table below presents (in thousands) the estimated net accretion of above- and below-market tenant leases and ground leases (excluding the impact of any acquisitions or dispositions) at December 31, 2014 for the next five years:
	Year
	2015	$	18,448		(1)
	2016	8,626
	2017	3,825
	2018	3,402
	2019	2,803
	Thereafter	5,328
	Total	$	42,432
	__________________________________________
	-1	Includes $6.6 million of accretion of an above-market ground lease as a result of our acquisition of the related fee interest in February 2015. See Note 19.

Other_Assets

Other Assets	12 Months Ended
	Dec. 31, 2014
Other Assets [Abstract]
Other Assets	Other Assets
	Other assets consisted of the following (in thousands) at December 31:
		2014		2013
	Deferred loan costs, net of accumulated amortization of $13,042 and $9,395 at December 31, 2014 and December 31, 2013, respectively(1)	$	15,623	$	17,745
	Note receivable(2)	27,500		—
	Restricted cash	194		194
	Prepaid expenses	6,108		5,747
	Other indefinite-lived intangible	1,988		1,988
	Deposits in escrow	2,500		—
	Other	3,357		2,933
	Total other assets	$	57,270	$	28,607
	___________________________________________________
	-1	We recognized deferred loan cost amortization expense of $4.1 million in 2014 and $4.2 million in 2013 and 2012. Deferred loan cost amortization is included as a component of interest expense in the consolidated statements of operations.
	-2	On February 28, 2014, we loaned $27.5 million to the owner of a fee interest related to one of our office buildings. The loan carried interest of 4.9% and was repaid in February 2015. See Note 19. The interest recognized on this note is included in other income in the consolidated statements of operations.

Secured_Notes_Payable_and_Revo

Secured Notes Payable and Revolving Credit Facility	12 Months Ended
	Dec. 31, 2014
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 December 31, 2014		Outstanding Principal Balance as of December 31, 2013		Variable Interest Rate	Effective	Swap Maturity Date
		Date							Annual
									Fixed Interest
									Rate (2)
	Fannie Mae Loan	2/1/15		—		111,920		DMBS + 0.707%	N/A	--
	Term Loan	12/24/15		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	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 (4)	8/5/18		355,000		355,000		N/A	4.14%	--
	Term Loan (5)	2/1/19		155,000		155,000		N/A	4.00%	--
	Term Loan (6)	6/5/19		285,000		285,000		N/A	3.85%	--
	Fannie Mae Loan	10/1/19		145,000		—		LIBOR + 1.25%	N/A	--
	Term Loan (7)	3/1/20	(8)	349,070		350,000		N/A	4.46%	--
	Fannie Mae Loans	11/2/20		388,080		388,080		LIBOR + 1.65%	3.65%	11/1/17
	Aggregate loan principal			3,253,290		3,201,140
	Revolving credit line (9)	12/11/17		182,000		40,000		LIBOR + 1.40%	N/A	--
	Total (10)			$	3,435,290	$	3,241,140
	Aggregate effectively fixed rate loans			$	1,828,080	$	1,828,080		3.98%
	Aggregate fixed rate loans			1,144,070		1,145,000			4.15%
	Aggregate variable rate loans			463,140		268,060			N/A
	Total (10)			$	3,435,290	$	3,241,140
	__________________________________________________
	-1	As of December 31, 2014, (i) the weighted average remaining life of our outstanding term debt (excluding our revolving credit line) was 3.9 years ; (ii) of the $2.97 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 the interest rate was fixed was 2.4 years and the weighted average annual interest rate was 4.05%; and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.15%. 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 December 31, 2014, and excludes amortization of prepaid loan fees, all shown on an actual/360-day basis. 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	Interest-only until February 2016, with principal amortization thereafter based upon a thirty years amortization table.
	-5	Interest-only until February 2015, with principal amortization thereafter based upon a thirty years amortization table.
	-6	Interest only until February 2017, with principal amortization thereafter based upon a thirty years amortization table.
	-7	Interest at a fixed interest rate until March 2018 and a floating rate thereafter, with interest-only payments until May 2016 and payments thereafter based upon a thirty years amortization table.
	-8	We have two one-year extension options, which would extend the maturity to March 1, 2020 from March 1, 2018, subject to meeting certain conditions.
	-9	Revolving credit facility under which we can borrow up to $300.0 million, and which is secured by 3 separate collateral pools consisting of a total of 6 properties. We are charged unused fees on the unused balance ranging from 0.15% to 0.20%.
	-10	See Note 12 for our fair value disclosures.
	As of December 31, 2014, 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 December 31:
	2015	$	22,267
	2016	109,339
	2017	619,410
	2018	1,731,874
	2019	564,320
	Thereafter	388,080
	Total future principal payments	$	3,435,290

Interest_Payable_Accounts_Paya

Interest Payable, Accounts Payable and Deferred Revenue	12 Months Ended
	Dec. 31, 2014
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 consist of the following (in thousands) as of December 31:
		2014		2013
	Interest payable	$	9,656	$	9,263
	Accounts payable and accrued liabilities	22,195		20,761
	Deferred revenue	22,513		22,739
	Total interest payable, accounts payable and deferred revenue	$	54,364	$	52,763

Interest_Rate_Contracts

Interest Rate Contracts	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Contracts	Interest Rate 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 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 December 31, 2014, 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		7		$1,828,080
	As of December 31, 2014, 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 Swap		1		$325,000
	Non-designated Hedges
	Derivatives not designated as hedges are not speculative. As of December 31, 2014, 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		4		$100,000
	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 December 31, 2014, there have been no events of default with respect to any of our derivatives.
	As of December 31, 2014 and 2013, the fair value of our derivatives in a net liability position, when aggregated by counterparty, was $41.0 million and $67.2 million, respectively, which includes accrued interest but excludes any adjustment for nonperformance risk related to these agreements. As of December 31, 2014 and 2013, 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 (loss), 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 $29.2 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 $584 thousand of our AOCI related to our Funds derivatives designated as cash flow hedges will be reclassified as a decrease to income (increase to loss), including depreciation, from unconsolidated real estate funds during the next twelve months.
	We terminated cash flow swaps in December 2011 that had an AOCI balance of $10.1 million at the time they were terminated. Amortization of $1.3 million of this balance was included as part of the reclassification from AOCI to interest expense in 2011, and the remaining $8.8 million was reclassified from AOCI to interest expense in 2012.
	The table below presents (in thousands) the effect of our derivative instruments on our AOCI and consolidated statements of operations for the year ended December 31:
		2014				2013			2012
	Derivatives Designated as Cash Flow Hedges:
	Gain (loss) recognized in AOCI (effective portion)1	$	(11,116	)		$	903		$	(49,432	)
	Gain (loss) recognized in AOCI (effective portion)1 related to our investment in unconsolidated real estate funds	$	(1,767	)		$	1,779		$	(1,356	)
	Loss reclassified from AOCI into interest expense (effective portion)	$	(36,874	)		$	(36,247	)	$	(55,748	)
	Loss reclassified from AOCI into income (loss), including depreciation, from unconsolidated real estate funds (effective portion)	$	(1,005	)		$	(549	)	$	(5,535	)
	Gain (loss) reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	$	(50	)		$	(85	)	$	4
	Loss on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	—		(64		)
	Derivatives Not Designated as Cash Flow Hedges:
	Realized and unrealized loss recognized as interest expense	$	—			$	(4	)	$	(42	)
	__________________________________________________
	-1	Gains and losses recognized in AOCI do not impact the income statement. Refer to the reconciliation of our AOCI in Note 9.
	Fair Value Measurement
	We record all derivatives on the balance sheet at fair value, on a gross basis, excluding accrued interest. See Note 12 for our fair value disclosures. The table below presents (in thousands) the fair values of derivative instruments:
		2014				2013
	Derivative liabilities disclosed as "Interest Rate Contracts" (1):
	Derivatives designated as cash flow hedges	$	37,386			$	63,144
	Derivatives not designated as cash flow hedges	—				—
	Total derivative liabilities	$	37,386			$	63,144
	_________________________________________________________
	(1) We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Equity

Equity	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Attributable to Parent [Abstract]
Equity	Equity
	Equity Transactions
	During 2014, we exchanged 2.2 million units in our operating partnership for shares of our common stock, and we redeemed 120 thousand units for cash, for a total purchase price of $2.8 million, for an average price of $23.56 per unit. We also cash settled options covering 691 thousand shares of our common stock for a total cost of $4.5 million, for an average price of $6.55 per option. We issued 40 thousand shares of our common stock on the exercise of options for net proceeds of $603 thousand, for an average price of $15.05 per share.
	During 2013, we exchanged 1.4 million units in our operating partnership for shares of our common stock, and we redeemed 13 thousand units for cash, for a total purchase price of $352 thousand, for an average price of $26.68 per unit. We did not sell any shares of our common stock during 2013.
	During 2012, we exchanged 3.2 million units in our operating partnership for shares of our common stock, and we sold 6.9 million shares of our common stock in open market transactions under our ATM program for net proceeds of $128.3 million after commissions and other expenses.
	Noncontrolling Interests
	As of December 31, 2014, we had 144.9 million shares of common stock and 27.6 million operating partnership units and fully-vested LTIP units outstanding. Noncontrolling interests in our operating partnership relate to interests in our operating partnership that are not owned by us. As of December 31, 2014, noncontrolling interests represented approximately 16% of our operating partnership. A unit in our operating partnership 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 units in our operating partnership have the right to cause our operating partnership to redeem any or all of their units in our operating partnership 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 from the noncontrolling interests for the year ended December 31:
			2014				2013				2012
	Net income attributable to common stockholders		$	44,621			$	45,311			$	22,942
	Transfers from the noncontrolling interests:
	Increase in common stockholders paid-in capital for redemption of operating partnership units		30,013				18,670				44,876
	Change from net income attributable to common stockholders and transfers from noncontrolling interests		$	74,634			$	63,981			$	67,818
	AOCI Reconciliation
	The table below presents (in thousands) a reconciliation of our AOCI, which consists solely of adjustments related to our cash flow hedges and the cash flow hedges of our unconsolidated Funds for the year ended December 31:
		2014				2013				2012
	Balance at beginning of period	$	(50,554	)		$	(82,991	)		$	(89,180	)
	Other comprehensive income (loss) before reclassifications 1	(12,884		)		2,681				(50,788		)
	Reclassifications from AOCI 2	37,929				36,881				61,279
	Net current period other comprehensive income	25,045				39,562				10,491
	Less other comprehensive income attributable to noncontrolling interests	(4,580		)		(7,125		)		(4,302		)
	Other comprehensive income attributable to common stockholders	20,465				32,437				6,189
	Balance at end of period	$	(30,089	)		$	(50,554	)		$	(82,991	)
	__________________________________________________
	-1	Includes (i) the fair value adjustments to our derivatives designated as cash flow hedges of $(11.1) million, $0.9 million and $(49.4) million in 2014 , 2013 and 2012, respectively, as well as (ii) our share of the fair value adjustments to the derivatives designated as cash flow hedges of our unconsolidated Funds of $(1.8) million, $1.8 million and $(1.4) million in 2014, 2013 and 2012, respectively.
	-2	Includes (i) a reclassification from AOCI to interest expense of $36.9 million, $36.3 million and $55.7 million in 2014, 2013 and 2012, respectively, of our derivatives designated as cash flow hedges, as well as (ii) a reclassification from AOCI to income (loss), including depreciation, of our unconsolidated real estate funds of $1 million, $0.5 million and $5.5 million in 2014, 2013 and 2012, respectively, related to derivatives designated as cash flow hedges of our unconsolidated Funds.
	-3	See Note 8 for the details of our derivatives that qualified and were designated as cash flow hedges.
	-4	See Note 12 for our fair value disclosures.
	Dividends
	During the fourth quarter of 2013, we increased our quarterly dividend from $0.18 per share to $0.20 per share, so that we paid aggregate dividends of $0.80 per share during 2014. Earnings and profits, which determine the taxability of distributions to stockholders, may differ from income reported for financial reporting purposes, due to the differences for federal income tax purposes in the treatment of loss on extinguishment of debt, revenue recognition, and compensation expense, and in the basis of depreciable assets and estimated useful lives used to compute depreciation. Our common stock dividends are classified for United States federal income tax purposes as follows (unaudited):
	Record Date		Paid Date		Dividend Per Share		Ordinary Income		Capital Gain		Return of Capital
	12/30/13		1/15/14		$0.20		$0.07		$—		$0.13
	3/31/14		4/15/14		0.2		0.074		—		0.126
	6/30/14		7/15/14		0.2		0.074		—		0.126
	9/30/14		10/15/14		0.2		0.074		—		0.126
			Total:		$0.80		$0.30		$—		$0.50

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share
	We calculate basic EPS by dividing the net income attributable to common stockholders for the year by the weighted average number of common shares outstanding during the year. We calculate diluted EPS by dividing the net income attributable to common stockholders and noncontrolling interests in our consolidated operating partnership for the year by the weighted average number of common shares and dilutive instruments outstanding during the year using the treasury stock method. The table below presents the calculation of basic and diluted EPS:
		Year Ended December 31,
		2014		2013		2012
	Numerator (in thousands):
	Net income attributable to common stockholders	$	44,621	$	45,311	$	22,942
	Add back: Net income attributable to noncontrolling interests in our Operating Partnership	8,543		9,021		4,965
	Numerator for diluted net income attributable to all equity holders	$	53,164	$	54,332	$	27,907
	Denominator (in thousands):
	Weighted average shares of common stock outstanding - basic	144,013		142,556		139,791
	Effect of dilutive securities(1):
	Operating partnership units and vested long term incentive plan (LTIP) units	27,574		28,381		30,251
	Stock options	4,108		3,288		2,487
	Unvested LTIP units	526		577		591
	Weighted average shares of common stock and common stock equivalents outstanding - diluted	176,221		174,802		173,120
	Basic earnings per share:
	Net income attributable to common stockholders per share	$	0.31	$	0.32	$	0.16
	Diluted earnings per share:
	Net income attributable to common stockholders per share	$	0.3	$	0.31	$	0.16
	____________________________________________________
	-1	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock, units in our operating partnership and other convertible equity instruments.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2014
Share-based Compensation [Abstract]
Stock-Based Compensation	Stock-Based Compensation
	2006 Omnibus Stock Incentive Plan
	The Douglas Emmett, Inc. 2006 Omnibus Stock Incentive Plan, as amended, our stock incentive plan, permits us to make grants of incentive stock options, non-qualified stock options, stock appreciation rights, deferred stock awards, restricted stock awards, dividend equivalent rights and other stock-based awards. We had an aggregate of 16.7 million shares available for grant as of December 31, 2014, although “full value” awards (such as deferred stock awards, restricted stock awards and LTIP unit awards) are counted against our stock incentive plan overall limits as two shares (rather than one), while options and Stock Appreciation Rights are counted as one share (0.9 shares for options or Stock Appreciation Rights with terms of five years or less). The number of shares reserved under our stock incentive plan is also subject to adjustment in the event of a stock split, stock dividend or other change in our capitalization. Shares that are forfeited or canceled from awards under our stock incentive plan also will generally be available for future awards.
	Our stock incentive plan is administered by the compensation committee of our board of directors. The compensation committee may interpret our stock incentive plan and make all determinations necessary or desirable for the administration of our plan. The committee has full power and authority to select the participants to whom awards will be granted, to make any combination of awards to participants, to accelerate the exercisability or vesting of any award and to determine the specific terms and conditions of each award, subject to the provisions of our stock incentive plan. All full-time and part-time officers, employees, directors and other key persons (including consultants and prospective employees) are eligible to participate in our stock incentive plan.
	Other stock-based awards under our stock incentive plan include awards that are valued in whole or in part by reference to shares of our common stock, including convertible preferred stock, convertible debentures and other convertible or exchangeable securities, partnership interests in a subsidiary or our operating partnership, awards valued by reference to book value, fair value or performance of a subsidiary and any class of profits interest or limited liability company membership interest. We have made certain awards in the form of a separate series of units of limited partnership interests in our operating partnership called long term incentive plan units ("LTIP Units"), which can be granted either as free-standing awards or in tandem with other awards under our stock incentive plan. Our LTIP Units are valued by reference to the value of our common stock at the time of grant, and are subject to such conditions and restrictions as the compensation committee may determine, including continued employment or service, computation of financial metrics and/or achievement of pre-established performance goals and objectives.
	We grant equity compensation in the form of LTIP Units as a part of the annual incentive compensation to our key employees each year, a portion which vests at the date of grant, and the remainder which vests in three equal annual installments over the three calendar years following the grant. We accrue compensation expense during each year for the portion of the annual bonuses which we expect to pay out in the form of immediately vested equity grants. Grants with respect to years prior to 2012 were awarded shortly after the respective year end, but commencing in 2012, we awarded the grants before the end of the year for which they were awarded. Compensation expense for LTIP Units which are not vested at the grant date is recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award. In addition to our annual incentive compensation, we also make long-term grants in the form of LTIP Units to our executives and certain key employees. The grants generally vest in equal annual installments over four to five calendar years following the grant, and some of these grants include a portion which vests at the date of grant. Compensation expense for options which are not vested at the grant date is recognized on a straight-line basis over the requisite service period for the entire award. Certain amounts of equity compensation expense are capitalized for employees who provide leasing and construction services.
	We granted LTIP Units to employees totaling 1.1 million in 2014, 0.6 million in 2013 and 1.2 million in 2012. We did not grant any options in 2014, 2013, and 2012.
	Each year, we grant LTIP Units to our non-employee directors which vest ratably over the year of grant in lieu of cash retainers. These awards totaled 15 thousand in 2014, 19 thousand in 2013 and 46 thousand in 2012. In addition, every three years we have also made long-term grants of LTIP Units to our non-employee directors which vest over the following three years. These awards totaled 54 thousand at the end of 2012. When a new director joins our board, we have made pro rata grants vesting over the remainder of the respective three year vesting period. Those grants totaled 1 thousand in 2012.
	Total equity compensation expense during 2014, 2013 and 2012 was $13.7 million, $10.0 million, and $10.6 million, respectively. These amounts do not include capitalized equity compensation totaling $1.1 million, $800 thousand, and $561 thousand during 2014, 2013 and 2012, respectively. Total equity compensation expense is included in general and administrative expenses in the consolidated statements of operations.
	We calculate the fair value of the LTIP Units granted using the market value of our common stock on the date of grant with a discount estimated by a third-party consultant for post-vesting restrictions. The total grant date fair value of LTIP Units which were granted in 2014, 2013 and 2012 was $21.4 million, $10.1 million and $19.2 million, respectively. The total grant date fair value of LTIP Units which vested in 2014, 2013 and 2012 was $14.9 million, $10.9 million and $13.5 million, respectively. Equity grants fully vested at the time of grant to satisfy a portion of the annual bonuses that were accrued during the prior year were $4.1 million for 2012. The total intrinsic value of options exercised and repurchased in 2014 was $5.0 million. Our policy is to issue new shares of common stock for stock options exercised on a one for one basis. Total unrecognized compensation cost related to nonvested option and LTIP Unit awards was $15.4 million at December 31, 2014. This expense will be recognized over a weighted-average term of twenty-six months.
	The table below presents the activity of our outstanding stock options granted under our stock incentive plan:
	Stock Options:	Number of Stock Options (thousands)		Weighted Average Exercise Price		Weighted	Total
						Average	Intrinsic Value (thousands)
						Remaining
						Contract Life
						(months)
	Outstanding at December 31, 2011	12,540		$	18.1	72	$	26,051
	Granted	—
	Outstanding at December 31, 2012	12,540		18.1		59	65,177
	Granted	—
	Outstanding at December 31, 2013	12,540		18.1		47	65,051
	Granted	—
	Exercised	(731	)	20.03
	Outstanding at December 31, 2014	11,809		17.98		36	123,017
	Exercisable at December 31, 2014	11,809		17.98		36	$	123,017
	The table below presents the activity of our outstanding unvested LTIP Units granted under our stock incentive plan:
	Unvested LTIP Units:	Number of Units (thousands)		Weighted Average
				Grant Date
				Fair Value
	Outstanding at December 31, 2011	603		$	12.64
	Granted	1,255		15.26
	Vested	(965	)	13.76
	Forfeited	(2	)	17.43
	Outstanding at December 31, 2012	891		15.12
	Granted	663		15.26
	Vested	(785	)	14.15
	Forfeited	(15	)	21.52
	Outstanding at December 31, 2013	754		15.63
	Granted	1,106		19.31
	Vested	(854	)	17.44
	Forfeited	(8	)	22.48
	Outstanding at December 31, 2014	998		18.48

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2014
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 December 31, 2014, 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.
	Secured notes receivable (disclosure of fair value)
	See Notes 5 and 18 for the details of our secured notes receivable. The fair value of our secured notes receivable is determined using Level 2 inputs based on current market interest rates.  The carrying value of our secured notes receivable approximated their fair values at December 31, 2014.
	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:	December 31, 2014		December 31, 2013
	Fair value	$	3,293,351	$	3,233,555
	Carrying value	$	3,253,290	$	3,201,140
	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, without reflecting any net settlement positions with the same counterparty, using the framework for measuring fair value established by the FASB.  The valuation of our interest rate swaps and caps 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)	December 31, 2014			December 31, 2013
	Level 1	$	—		$	—
	Level 2	37,386			63,144
	Level 3	—			—
	Fair Value of Derivative Instruments	$	37,386		$	63,144
	_________________________________________________________
	(1) We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Future_Minimum_Lease_Receipts

Future Minimum Lease Receipts	12 Months Ended
	Dec. 31, 2014
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 $548 thousand for 2014, $576 thousand for 2013 and $658 thousand for 2012.
	The table below presents (in thousands) the future minimum base rentals on our non-cancelable office and ground operating leases at December 31, 2014:
	Twelve months ending December 31:
	2015	$	376,141
	2016	335,928
	2017	284,546
	2018	226,177
	2019	182,292
	Thereafter	444,007
	Total future minimum base rentals	$	1,849,091
	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 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	12 Months Ended
	Dec. 31, 2014
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Future Minimum Lease Payments	Future Minimum Lease Payments
	We leased portions of the land underlying two of our office buildings. We expensed ground lease payments of $2.6 million for 2014 and $2.2 million for both 2013 and 2012. We acquired the fee interest related to one of these two leases in February 2015. See Note 19. Because we had the ability to acquire the respective fee interest, we excluded payments under this lease from the future minimum ground rent payments in the table below.
	The table below presents (in thousands) our future minimum ground lease payments as of December 31, 2014:
	Twelve months ending December 31:
	2015	$	733
	2016	733
	2017	733
	2018	733
	2019	733
	Thereafter	49,110
	Total future minimum lease payments	$	52,775	(1)
	___________________________________________________
	-1	Lease term ends on December 31, 2086, and requires ground rent payments totaling $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 will continue to be $733 thousand per year after February 28, 2019.

Commitments_Contingencies_and_

Commitments, Contingencies and Guarantees	12 Months Ended
	Dec. 31, 2014
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 Credit 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. In addition, 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, containing asbestos, which would have to be removed in compliance with applicable environmental regulations if these properties undergo major renovations or are demolished. As of December 31, 2014, 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 December 31, 2014, the maximum future payments under the swap agreement were approximately $4.6 million.  As of December 31, 2014, all of the obligations under the loan and swap agreements have been performed by the Fund in accordance with the terms of those agreements.
	Tenant Concentrations
	In 2014, 2013 and 2012, no tenant accounted for more than 10% of our total rental revenue and tenant recoveries.

Segment_Reporting

Segment Reporting	12 Months Ended
	Dec. 31, 2014
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, is not indicative of cash available to fund cash needs and should not be considered 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:
		Year Ended December 31,
		2014			2013			2012
	Office Segment
	Total office revenues	$	519,422		$	514,600		$	505,276
	Office expenses	(181,177		)	(174,952		)	(170,725		)
	Segment profit	338,245			339,648			334,551
	Multifamily Segment
	Total multifamily revenues	80,117			76,936			73,723
	Multifamily expenses	(20,664		)	(19,928		)	(19,672		)
	Segment profit	59,453			57,008			54,051
	Total profit from all segments	$	397,698		$	396,656		$	388,602
	The table below (in thousands) is a reconciliation of the total profit from all segments to net income attributable to common stockholders:
		Year Ended December 31,
		2014			2013			2012
	Total profit from all segments	$	397,698		$	396,656		$	388,602
	General and administrative expenses	(27,332		)	(26,614		)	(27,943		)
	Depreciation and amortization	(202,512		)	(191,351		)	(184,849		)
	Other income	17,675			6,402			2,821
	Other expenses	(7,095		)	(4,199		)	(1,883		)
	Income (loss), including depreciation, from unconsolidated real estate funds	3,713			3,098			(1,710		)
	Interest expense	(128,507		)	(130,548		)	(146,693		)
	Acquisition-related expenses	(786		)	(607		)	—
	Net income	52,854			52,837			28,345
	Less: Net income attributable to noncontrolling interests	(8,233		)	(7,526		)	(5,403		)
	Net income attributable to common stockholders	$	44,621		$	45,311		$	22,942

Quarterly_Financial_Informatio

Quarterly Financial Information (unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information [Abstract]
Quarterly Financial Information (unaudited)	Quarterly Financial Information (unaudited)
	The tables below present (in thousands, except per share amounts) selected quarterly information for 2014 and 2013:
		Three Months Ended
		March 31,		30-Jun-14		30-Sep-14		31-Dec-14
		2014
	Total revenue	$	148,876	$	151,426	$	148,146	$	151,091
	Net income before noncontrolling interests	15,458		15,917		8,681		12,798
	Net income attributable to common stockholders	12,976		13,363		7,389		10,893
	Net income per common share - basic	$	0.09	$	0.09	$	0.05	$	0.08
	Net income per common share - diluted	$	0.09	$	0.09	$	0.05	$	0.07
	Weighted average shares of common stock outstanding - basic	143,140		143,717		144,361		144,823
	Weighted average shares of common stock outstanding - diluted	175,751		176,310		176,413		176,436
		Three Months Ended
		31-Mar-13		30-Jun-13		30-Sep-13		31-Dec-13
	Total revenue	$	145,458	$	148,716	$	149,686	$	147,676
	Net income before noncontrolling interests	14,612		14,978		12,743		10,504
	Net income attributable to common stockholders	12,082		13,635		10,751		8,843
	Net income per common share - basic	$	0.08	$	0.1	$	0.08	$	0.06
	Net income per common share - diluted	$	0.08	$	0.09	$	0.07	$	0.06
	Weighted average shares of common stock outstanding - basic	142,440		142,581		142,598		142,603
	Weighted average shares of common stock outstanding - diluted	174,579		175,252		174,756		174,600

Investments_In_Unconsolidated_

Investments In Unconsolidated Real Estate Funds	12 Months Ended
	Dec. 31, 2014
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 institutional investors own 8 office properties totaling 1.8 million square feet in our core markets.  At December 31, 2014, we held equity interests of 68.61% of Fund X and 24.25% of Partnership X. We received cash distributions from our Funds totaling $12.4 million for 2014, $8.3 million for 2013 and $5.5 million for 2012.
	We did not acquire any additional interests in our Funds in 2014.  During the first quarter of 2013, we acquired an additional 3.3% interest in Fund X and an additional 0.9% interest in Partnership X from an existing investor for an aggregate of approximately $8.0 million in cash.  During the first quarter of 2012, we acquired an additional 16.3% interest in Fund X from existing investors for approximately $33.4 million in cash.
	Our investment in the Funds includes a note receivable. On April 3, 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%, and is due and payable no later than April 1, 2017, with mandatory prepayments equal to any distributions with respect to the related party's interest in Fund X. As of December 31, 2014, and 2013 the balance outstanding on the loan was $1.5 million and $2.7 million, respectively. The interest recognized on this note is included in other income in the consolidated statements of operations.
	The tables below present (in thousands) selected financial information for the Funds on a combined basis.  The accounting policies of the Funds are consistent with those of the Company. The amounts presented represent 100% (not our pro-rata share) of amounts related to the Funds and are based upon historical acquired book value:
		Year Ended December 31,
		2014		2013
	Total revenues	$	66,234	$	63,976
	Operating income	11,738		10,151
	Net income (loss)	254		(829		)
		December 31, 2014		December 31, 2013
	Total assets	$	703,130	$	722,983
	Total liabilities	389,413		391,892
	Total equity	313,717		331,091

Subsequent_Events_Notes

Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	Subsequent events
	On December 29, 2014, we entered into an agreement to purchase a 224 thousand square foot Class “A” multi-tenant office property in Encino for $89.0 million, or approximately $397 per square foot. Subject to typical closing conditions, the purchase is scheduled to close during the first quarter of 2015.
	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 and then contributed the fee interest, subject to the remaining balance of that loan of $26.5 million, in exchange for 34,412 units in our operating partnership valued at $1.0 million. We expect that an additional $6.6 million of accretion of an above-market ground lease related to the fee interest will be recognized in other income in the first quarter of 2015 as a result of this transaction. See Note 4.

Schedule_III

Schedule III	12 Months Ended
	Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III
	Douglas Emmett, Inc.
	Schedule III
	Consolidated Real Estate and Accumulated Depreciation
	(in thousands)
							Initial Cost								Cost Capitalized Subsequent to Acquisition		Gross Carrying Amount
																	at December 31, 2014
	Property Name		Encumbrances at December 31, 2014				Land				Building & Improvements				Improvements		Land		Building & Improvements		Total		Accumulated Depreciation at December 31, 2014			Year Built / Renovated	Year Acquired
	Office Properties
	100 Wilshire		$	139,199			$	12,769			$	78,447			$	139,026	$	27,108	$	203,134	$	230,242	$	(50,341	)	1968/2002	1999
	11777 San Vicente		25,931				5,032				15,768				29,614		6,714		43,700		50,414		(10,434		)	1974/1998	1999
	12400 Wilshire		61,436				5,013				34,283				75,233		8,828		105,701		114,529		(26,048		)	1985	1996
	16501 Ventura		—				6,759				53,112				7,715		6,759		60,827		67,586		(3,314		)	1986/2012	2013
	1901 Avenue of the Stars		155,000				18,514				131,752				111,562		26,163		235,665		261,828		(60,316		)	1968/2001	2001
	401 Wilshire		79,787				9,989				29,187				115,305		21,787		132,694		154,481		(33,816		)	1981/2000	1996
	8484 Wilshire		32,209				8,846				77,780				13,838		8,846		91,619		100,465		(4,588		)	1972/2013	2013
	9601 Wilshire		112,144				16,597				54,774				110,371		17,658		164,084		181,742		(41,612		)	1962/2004	2001
	Beverly Hills Medical Center		31,469				4,955				27,766				28,218		6,435		54,504		60,939		(14,058		)	1964/2004	2004
	Bishop Place		73,813				8,317				105,651				59,385		8,833		164,520		173,353		(44,204		)	1992	2004
	Bishop Square		139,131				16,273				213,793				20,495		16,273		234,288		250,561		(39,269		)	1972/1983	2010
	Brentwood Court		6,318				2,564				8,872				291		2,563		9,164		11,727		(2,491		)	1984	2006
	Brentwood Executive Plaza		25,461				3,255				9,654				33,511		5,921		40,499		46,420		(10,826		)	1983/1996	1995
	Brentwood Medical Plaza		25,805				5,934				27,836				2,103		5,933		29,940		35,873		(8,106		)	1975	2006
	Brentwood San Vicente Medical		13,297				5,557				16,457				1,020		5,557		17,477		23,034		(4,587		)	1957/1985	2006
	Brentwood/Saltair		13,065				4,468				11,615				11,712		4,775		23,020		27,795		(6,133		)	1986	2000
	Bundy/Olympic		24,056				4,201				11,860				29,180		6,030		39,211		45,241		(10,122		)	1991/1998	1994
	Camden Medical Arts		28,606				3,102				12,221				27,813		5,298		37,838		43,136		(9,461		)	1972/1992	1995
	Carthay Campus		—				6,595				70,454				131		6,595		70,585		77,180		(486		)	1965/2008	2014
	Century Park Plaza		85,010				10,275				70,761				104,974		16,153		169,857		186,010		(42,650		)	1972/1987	1999
	Century Park West		11,989				3,717				29,099				528		3,667		29,677		33,344		(7,492		)	1971	2007
	Columbus Center		10,559				2,096				10,396				9,610		2,333		19,769		22,102		(5,249		)	1987	2001
	Coral Plaza		23,327				4,028				15,019				18,899		5,366		32,580		37,946		(8,473		)	1981	1998
	Cornerstone Plaza		24,085				8,245				80,633				4,729		8,263		85,344		93,607		(19,210		)	1986	2007
	Encino Gateway		51,463				8,475				48,525				53,012		15,653		94,359		110,012		(25,523		)	1974/1998	2000
	Encino Plaza		30,011				5,293				23,125				46,267		6,165		68,520		74,685		(19,106		)	1971/1992	2000
	Encino Terrace		67,307				12,535				59,554				94,319		15,533		150,875		166,408		(40,360		)	1986	1999
	Executive Tower		33,909				6,660				32,045				60,291		9,471		89,525		98,996		(23,327		)	1989	1995
	Gateway Los Angeles		28,429				2,376				15,302				48,370		5,119		60,929		66,048		(15,708		)	1987	1994
	Harbor Court		—				51				41,001				21,332		—		62,384		62,384		(17,811		)	1994	2004
	Honolulu Club		16,140				1,863				16,766				6,731		1,863		23,497		25,360		(5,578		)	1980	2008
	Landmark II		118,684				19,156				109,259				79,641		26,139		181,917		208,056		(56,866		)	1989	1997
	Lincoln/Wilshire		24,895				3,833				12,484				22,879		7,475		31,721		39,196		(7,802		)	1996	2000
	MB Plaza		28,091				4,533				22,024				30,582		7,503		49,636		57,139		(14,314		)	1971/1996	1998
	Douglas Emmett, Inc.
	Schedule III (continued)
	Consolidated Real Estate and Accumulated Depreciation
	(in thousands)
							Initial Cost								Cost Capitalized Subsequent to Acquisition		Gross Carrying Amount
																	at December 31, 2014
	Property Name		Encumbrances at December 31, 2014				Land				Building & Improvements				Improvements		Land		Building & Improvements		Total		Accumulated Depreciation at December 31, 2014			Year Built / Renovated	Year Acquired
	Office Properties (continued)
	Olympic Center		27,968				5,473				22,850				31,899		8,247		51,975		60,222		(13,879		)	1985/1996	1997
	One Westwood		45,577				10,350				29,784				59,738		9,194		90,678		99,872		(23,751		)	1987/2004	1999
	Palisades Promenade		35,904				5,253				15,547				51,903		9,664		63,039		72,703		(16,207		)	1990	1995
	Saltair/San Vicente		15,472				5,075				6,946				16,920		7,557		21,384		28,941		(5,738		)	1964/1992	1997
	San Vicente Plaza		9,430				7,055				12,035				404		7,055		12,439		19,494		(3,720		)	1985	2006
	Santa Monica Square		25,487				5,366				18,025				20,241		6,863		36,769		43,632		(9,723		)	1983/2004	2001
	Second Street Plaza		35,802				4,377				15,277				35,296		7,421		47,529		54,950		(12,979		)	1991	1997
	Sherman Oaks Galleria		264,297				33,213				17,820				409,279		48,328		411,984		460,312		(114,233		)	1981/2002	1997
	Studio Plaza		115,591				9,347				73,358				129,449		15,015		197,139		212,154		(55,486		)	1988/2004	1995
	The Trillium		67,283				20,688				143,263				82,897		21,989		224,859		246,848		(58,705		)	1988	2005
	Tower at Sherman Oaks		20,000				4,712				15,747				37,584		8,685		49,358		58,043		(13,740		)	1967/1991	1997
	Valley Executive Tower		86,055				8,446				67,672				100,068		11,737		164,449		176,186		(43,120		)	1984	1998
	Valley Office Plaza		35,037				5,731				24,329				46,978		8,957		68,081		77,038		(18,643		)	1966/2002	1998
Verona		14,262				2,574				7,111				13,968		5,111		18,542		23,653		(4,931		)	1991	1997
Village on Canon		33,583				5,933				11,389				48,622		13,303		52,641		65,944		(13,039		)	1989/1995	1994
Warner Center Towers		285,000				43,110				292,147				393,398		59,418		669,237		728,655		(175,984		)	1982-1993/2004	2002
Westside Towers		80,216				8,506				79,532				77,913		14,568		151,383		165,951		(39,016		)	1985	1998
Westwood Place		52,094				8,542				44,419				51,895		11,448		93,408		104,856		(23,753		)	1987	1999
Multifamily Properties
555 Barrington		43,440				6,461				27,639				40,392		14,903		59,589		74,492		(14,641		)	1989	1999
Barrington Plaza		153,630				28,568				81,485				152,529		58,208		204,374		262,582		(48,912		)	1963/1998	1998
Barrington/Kiowa		7,750				5,720				10,052				526		5,720		10,578		16,298		(2,616		)	1974	2006
Barry		7,150				6,426				8,179				481		6,426		8,660		15,086		(2,264		)	1973	2006
Kiowa		3,100				2,605				3,263				262		2,605		3,525		6,130		(907		)	1972	2006
Landmark II Development		—				—				—				1,162		—		1,162		1,162		—			2013/2014	N/A
Moanalua Hillside Apartments		145,000				24,720				85,895				42,309		35,365		117,559		152,924		(27,649		)	1968/2004	2005
Pacific Plaza		46,400				10,091				16,159				74,205		27,816		72,639		100,455		(17,217		)	1963/1998	1999
The Shores		144,610				20,809				74,191				197,659		60,555		232,104		292,659		(54,582		)	1965-67/2002	1999
Villas at Royal Kunia		82,000				42,887				71,376				14,274		35,164		93,373		128,537		(26,041		)	1990/1995	2006
Waena		—				26,864				119,273				—		26,864		119,273		146,137		—			1970/2009-2014	2014
Ground Lease
Owensmouth/Warner		12,526				23,848				—				—		23,848		—		23,848		—			N/A	2006
TOTAL		$	3,435,290			$	634,627			$	2,972,038			$	3,550,938	$	900,813	$	6,256,790	$	7,157,603	$	(1,531,157	)
The aggregate cost of total real estate for federal income tax purposes was approximately $4.25 billion at December 31, 2014.
Douglas Emmett, Inc.
Schedule III (continued)
Consolidated Real Estate and Accumulated Depreciation
(in thousands)
			Year Ended December 31,
			2014				2013				2012
Real Estate Assets
Balance, beginning of period			$	7,012,733			$	6,786,537			$	6,726,018
Additions:	property acquisitions		223,186				146,497				—
	improvements		84,578				79,150				60,519
	developments		4,280				549				—
Write-offs:			(167,174		)		—				—
Balance, end of period			$	7,157,603			$	7,012,733			$	6,786,537
Accumulated Depreciation
Balance, beginning of period			$	(1,495,819	)		$	(1,304,468	)		$	(1,119,619	)
Additions:	depreciation		(202,512		)		(191,351		)		(184,849		)
Write-offs:			167,174				—				—
Balance, end of period			$	(1,531,157	)		$	(1,495,819	)		$	(1,304,468	)

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2014
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.
Investments in Real Estate	Investments in Real Estate
	We account for acquisitions of properties utilizing the purchase method, and include the results of operations of the acquired properties in our results of operations from their respective dates of acquisition. We expense transaction costs related to acquisitions when they are incurred.
	When we acquire a property, we determine the fair values of the tangible assets on an ‘‘as-if-vacant’’ basis. We use estimates of future cash flows, comparable sales, other relevant information obtained in connection with the acquisition of the property, and other valuation techniques to allocate the purchase price of each acquired property between land, buildings and improvements, tenant improvements and leasing costs, and identifiable intangible assets and liabilities such as amounts related to in-place at-market leases, acquired above- and below-market tenant leases, and acquired above- and below-market ground leases.
	The estimated fair value of acquired in-place at-market tenant leases represents the estimated costs that we would have incurred to lease the property to the occupancy level of the property at the date of acquisition, including the fair value of leasing commissions and legal costs. Additionally, we evaluate the time period over which such occupancy level would be achieved and include an estimate of the net operating costs (primarily real estate taxes, insurance and utilities) incurred during the lease-up period. We record above-market and below-market in-place lease intangibles as an asset or liability based on the present value (using a discount rate which reflects the risks associated with the leases acquired) of the difference between the contractual amounts to be received or paid pursuant to the in-place tenant or ground leases, respectively, and our estimate of fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. Our initial valuations and allocations are subject to change until the allocation is finalized within 12 months after the acquisition date. See Note 3 for our property acquisition disclosures.
	Buildings and site improvements are depreciated on a straight-line basis using an estimated life of forty years for buildings and fifteen years for site improvements. We carry buildings and site improvements, offset by the related accumulated depreciation, on our balance sheet until they are either sold or impaired.
	Tenant improvements are depreciated over the life of the related lease, with any remaining balance depreciated in the period of any early termination of that lease. During 2014, we removed the cost and accumulated depreciation of $79.2 million of fully depreciated tenant improvements determined to be no longer in use from our balance sheet.
	Acquired in-place leases are amortized on a straight line basis over the weighted average remaining term of the acquired in-place leases. We carry acquired in-place leases, offset by the related accumulated amortization, on our balance sheet until the related building is either sold or impaired.
	Leasing intangibles are amortized on a straight-line basis over the related lease term, with any remaining balance amortized in the period of any early termination of that lease. During 2014, we removed the cost and accumulated amortization of $82.6 million of fully amortized leasing intangibles from our balance sheet.
	Acquired above- and below-market tenant leases are amortized over the life of the related lease and recorded as either an increase (for below-market leases) or a decrease (for above-market leases) to rental income. Acquired above- and below-market ground leases are amortized over the life of the lease and recorded either as an increase (for below-market leases) or a decrease (for above-market leases) to revenue. During 2014, we removed the cost and accumulated amortization/accretion of $32.2 million of fully amortized above-market tenant leases and $137.3 million of fully accreted below-market tenant leases from our balance sheet.
	When assets are sold or retired, their cost and related accumulated depreciation or amortization are removed from our balance sheet with the resulting gains or losses, if any, reflected in discontinued operations for the respective period. Repairs and maintenance are recorded as expense when incurred.
	Interest, insurance, property taxes and other costs incurred during the period of construction of real estate are capitalized. Cost capitalization of development and redevelopment activities begins during the predevelopment period, which we define as activities that are necessary for the development of the property.  We cease capitalization upon substantial completion of the project, but no later than one year from cessation of major construction activity.  We also cease capitalization when activities necessary to prepare the property for its intended use have been suspended. During 2014 and 2013, we capitalized $4.3 million and $549 thousand of costs related to our multifamily developments in Honolulu and Brentwood, respectively, which includes $294 thousand and $75 thousand of capitalized interest expense, respectively. We did not capitalize any costs during 2012 related to development or redevelopment activities.
	Insurance Recoveries
	The amount by which insurance recoveries related to property damage exceed any losses recognized from that damage are recorded as other income when payment is either received or receipt is determined to be probable.
Investment in Unconsolidated Real Estate Funds	Investment in Unconsolidated Real Estate Funds
	At December 31, 2014, we managed and held equity interests in two Funds: Fund X and Partnership X. We held a 68.61% interest in Fund X, and an aggregate 24.25% interest in the properties held by Partnership X and its subsidiaries. We account for our investments in the Funds using the equity method because we have significant influence but not control over the entities and our Funds do not qualify as variable interest entities. Our investment balance represents our share of the net assets of the combined Funds, additional basis of approximately $2.9 million (primarily due to the inclusion of the cost of raising capital that is accounted for as part of our investment basis), and a note receivable with an outstanding balance of $1.5 million. See Note 18.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets
	We assess whether there has been impairment in the value of our long-lived assets whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount to the undiscounted future cash flows expected to be generated by the asset. If the current carrying value exceeds the estimated undiscounted cash flows, an impairment loss is recorded equal to the difference between the asset’s current carrying value and its fair value based on the discounted estimated future cash flows. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell. Based upon such periodic assessments, no impairments occurred during 2014, 2013 or 2012.
	We assess whether there has been impairment in the value of our investments in our Funds periodically. An impairment charge is recorded when events or change in circumstances indicate that a decline in the fair value below the carrying value has occurred and such decline is other-than-temporary. The ultimate realization of the investments in our Funds is dependent on a number of factors, including the performance of the investment and market conditions. We will record an impairment charge if we determine that a decline in the value of an investment in one of our Funds is other-than-temporary.  Based upon such periodic assessments, no impairment occurred during 2014, 2013 or 2012.
	An asset is classified as an asset held for sale when it meets certain requirements, including the approval of the sale of the asset, the marketing of the asset for sale, and our expectation that the sale will likely occur within the next 12 months. Upon classification of an asset as held for disposition, the net book value of the asset, excluding long-term debt, is included on the balance sheet as properties held for disposition, we cease to depreciate the asset, and the operating results of the asset are included in discontinued operations for all periods presented. As of December 31, 2014, we did not have any assets classified as held for sale.
Cash and Cash Equivalents	Cash and Cash Equivalents
	For purposes of the consolidated statements of cash flows, we consider short-term investments with maturities of three months or less when purchased to be cash equivalents.
Revenue and Gain Recognition	Revenue and Gain Recognition
	Four basic criteria must be met before revenue can be recognized: persuasive evidence of an arrangement exists; services are rendered; the fee is fixed and determinable; and collectibility is reasonably assured. All leases are classified as operating leases. For all lease terms exceeding one year, rental income is recognized on a straight-line basis over the term of the lease. Deferred rent receivables represent rental revenue recognized on a straight-line basis in excess of billed rents. Lease termination fees, which are included in rental revenues in the accompanying consolidated statements of operations, are recognized when the related lease is canceled and we have no continuing obligation to provide services to such former tenant. We recorded total lease termination revenue of $2.6 million for 2014, $576 thousand for 2013 and $985 thousand for 2012.
	Estimated recoveries from tenants for real estate taxes, common area maintenance and other recoverable operating expenses are recognized as revenues in the period that the expenses are incurred. Subsequent to year-end, we perform reconciliations on a lease-by-lease basis and bill or credit each tenant for any cumulative annual adjustments. In addition, we record a tenant improvement and deferred revenue for leasehold improvements constructed by us that are reimbursed by tenants. The deferred revenue is amortized as additional rental revenue over the related lease term. Rental revenue from month-to-month leases or leases with no scheduled rent increases or other adjustments is recognized on a monthly basis when earned.
	The recognition of gains on sales of real estate requires that we measure the timing of a sale against various criteria related to the terms of the transaction, as well as any continuing involvement in the form of management or financial assistance associated with the property. If the sales criteria are not met, we defer gain recognition and account for the continued operations of the property by applying the finance, profit-sharing or leasing method. If the sales criteria have been met, we further analyze whether profit recognition is appropriate using the full accrual method. If the criteria to recognize profit using the full accrual method have not been met, we defer the gain and recognize it when the criteria are met or use the installment or cost recovery method as appropriate under the circumstances.
Monitoring of Rents and Other Receivables	Monitoring of Rents and Other Receivables
	We maintain an allowance for estimated losses that may result from the inability of tenants to make required payments. If a tenant fails to make contractual payments beyond any allowance, we may recognize bad debt expense in future periods equal to the amount of unpaid rent and deferred rent. We take into consideration many factors to evaluate the level of reserves necessary, including historical termination/default activity and current economic conditions. As of December 31, 2014 and 2013, we had an allowance for doubtful accounts of $7.8 million and $10.7 million, respectively.
	We generally do not require collateral or other security from our tenants other than letters of credit or cash security deposits. As of December 31, 2014 and 2013, we had a total of approximately $14.7 million and $17.0 million, respectively, of letters of credit held for security, as well as $37.5 million and $35.5 million, respectively, of cash security deposits.
Interest Income	Interest Income
	Interest income on our notes receivable is recognized over the life of the respective notes using the effective interest method and recognized on the accrual basis. Interest income is included in other income in the consolidated statements of operations. See Notes 5 and 18.
Deferred Loan Costs	Deferred Loan Costs
	Costs incurred directly with the issuance of secured notes payable are capitalized and amortized to interest expense over the respective loan term. Any unamortized amounts are fully amortized upon early repayment of secured notes payable, and the related cost and accumulated amortization are removed from our balance sheet. Deferred loan costs are included in other assets in the consolidated balance sheets. See Note 5.
Interest Rate Agreements	Interest Rate Agreements
	We generally manage our interest rate risk associated with floating rate borrowings by entering into interest rate swap and interest rate cap contracts. The interest rate swap agreements that we utilize effectively modify our exposure to interest rate risk by converting our floating-rate debt to a fixed-rate basis, thus reducing the impact of interest-rate changes on future interest expense. These agreements involve the receipt of floating-rate amounts in exchange for fixed-rate interest payments over the life of the agreements without an exchange of the underlying principal amount. We do not use any other derivative instruments.
	We record all derivatives on the balance sheet at fair value on a gross basis. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, are considered to be fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered to be cash flow hedges.
	Our objective in using derivatives is to add stability to interest expense and to manage our exposure to interest rate movements and other identified risks. To accomplish this objective, we primarily use interest rate swaps as part of our cash flow hedging strategy. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are initially reported in other comprehensive income (a component of equity outside of earnings) and subsequently reclassified to earnings when the hedged transaction affects earnings. The ineffective portion of changes in the fair value of the derivative are recognized directly in earnings. We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows of the derivative hedging instrument with the changes in fair value or cash flows of the designated hedged item or transaction. For derivatives not designated as hedges, changes in fair value are recognized directly in earnings. The fair value of these hedges is obtained through independent third-party valuation sources that use conventional valuation algorithms. See Note 8.
Stock-Based Compensation	Stock-Based Compensation
	We account for stock-based compensation, including stock options and long-term incentive plan units, using the fair value method of accounting. The estimated fair value of the stock options and the long-term incentive units is amortized over their respective vesting periods. See Note 11.
Earnings Per Share	Earnings Per Share
	Basic earnings per share is calculated by dividing the net income attributable to common stockholders for the period by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated 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. See Note 10.
Segment Information	Segment Information
	Segment information is prepared on the same basis that our management reviews information for operational decision-making purposes. We operate two business segments: the acquisition, development, ownership and management of office real estate, and the acquisition, development, ownership and management of multifamily real estate.
	The products for our office segment include primarily rental of office space and other tenant services, including parking and storage space rental. The products for our multifamily segment include primarily rental of apartments and other tenant services, including parking and storage space rental. See Note 16.
Income Taxes	Income Taxes
	We have elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (IRC), commencing with our initial taxable year ending December 31, 2006. To qualify as a REIT, we are required (among other things) to distribute at least 90% of our REIT taxable income to our stockholders and meet the various other requirements imposed by the IRC relating to matters such as operating results, asset holdings, distribution levels and diversity of stock ownership. 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. If we fail to qualify as a REIT in any taxable year, and were unable to avail ourselves of certain savings provisions set forth in the IRC, all of our taxable income would be subject to federal income tax at regular corporate rates, including any applicable alternative minimum tax.
	In addition, we are subject to taxation by various state and local jurisdictions, including those in which we transact business or reside. Our non taxable REIT subsidiaries, including our operating partnership, are either partnerships or disregarded entities for federal income tax purposes. Under applicable federal and state income tax rules, the allocated share of net income or loss from disregarded entities (including limited partnerships and S-Corporations) is reportable in the income tax returns of the respective partners and stockholders. Accordingly, no income tax provision is included in the accompanying consolidated financial statements.
	We have elected to treat two of our subsidiaries as taxable REIT subsidiaries (TRS) which generally may engage in any business, including the provision of customary or non-customary services for our tenants. A TRS is treated as a regular corporation and is subject to federal income tax and applicable state income and franchise taxes at regular corporate rates.  Our TRS subsidiaries did not have significant tax provisions or deferred income tax items for 2014, 2013 or 2012.
New Accounting Pronouncements	New Accounting Pronouncements
	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 February 2013, the FASB issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date (Topic 405), which provides guidance for the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this ASU is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, which for us was the first quarter of 2014. We adopted ASU No. 2013-04 during the first quarter of 2014, and it did not have a material impact on our financial position or results of operations, as we do not currently have any obligations within the scope of this ASU.
	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 Update 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 is the first quarter of 2015. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. We do not expect this ASU to have a material impact on our financial position or results of operations.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which provides guidance for the accounting of revenue from contracts with customers. The guidance supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the Codification. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, which for us is the first quarter of 2017. Early adoption is not permitted. We do not expect this ASU to have a material impact on our financial position or results of operations, as lease contracts are not within the scope of this ASU.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40), which provides guidance about management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures if necessary. The ASU is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter, which for us is the fiscal year ended December 31, 2016. Early application is permitted. We do not expect this ASU to have a material impact on our disclosures.
	In November 2014, the FASB issued ASU No. 2014-17, Pushdown Accounting (Topic 805), which provides guidance regarding pushdown accounting for acquired entities when an acquirer obtains control of the acquired entity. The objective of this ASU is to provide guidance on whether and at what threshold an acquired entity can apply pushdown accounting in its separate financial statements. The ASU was effective on November 18, 2014. We do not expect this ASU to have a material impact on our financial position or results of operations.
	In January 2015, the FASB issued ASU No. 2015-01, Income Statement—Extraordinary and Unusual Items (Subtopic 225-20), which eliminates from GAAP the concept of extraordinary items. The Board is issuing this Update as part of its initiative to reduce complexity in accounting standards (the Simplification Initiative). The objective of the Simplification Initiative is to identify, evaluate, and improve areas of generally accepted accounting principles (GAAP) for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to the users of financial statements. The amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015, which for us is the first quarter of 2016. A reporting entity may apply the amendments prospectively or retrospectively to all prior periods presented in the financial statements, and early adoption is permitted. We do not expect this ASU to have a material impact on our disclosures.
	In February 2015, the FASB issued ASU No. 2015-02, Amendments to the Consolidation Analysis (Consolidation - Topic 810), which provides guidance regarding the consolidation of certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. The amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015, which for us is the first quarter of 2016. Early adoption is permitted, including adoption in an interim period. We are currently evaluating the impact of this ASU.
	The FASB has not issued any other ASUs during 2014 or 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)	12 Months Ended
	Dec. 31, 2014
Investment In Real Estate [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The table below (in thousands) summarizes our purchase price allocations for the acquired properties:
		8484 Wilshire			16501 Ventura
	Investment in real estate:
	Land	$	8,847		$	6,759
	Buildings and improvements	77,158			55,179
	Tenant improvements and lease intangibles	6,485			4,736
	Acquired above and below-market leases, net	(3,490		)	(5,674		)
	Net assets and liabilities acquired	$	89,000		$	61,000
	The table below (in thousands) summarizes our preliminary purchase price allocations for the acquired properties (these allocations are subject to adjustment within twelve months of the acquisition date):
		Carthay Campus			Waena
	Investment in real estate:
	Land	$	6,595		$	26,864
	Buildings and improvements	64,511			117,541
	Tenant improvements and lease intangibles	5,943			1,732
	Acquired above and below-market leases, net	(2,580		)	(137		)
	Net assets and liabilities acquired	$	74,469		$	146,000

Acquired_Lease_Intangibles_Tab

Acquired Lease Intangibles (Tables)	12 Months Ended
	Dec. 31, 2014
Acquired Lease Intangibles [Abstract]
Summary Of Acquired Lease Intangibles	The following summarizes (in thousands) our acquired lease intangibles related to above and below-market leases as of December 31:
			2014			2013
	Above-market tenant leases(1)		$	3,040		$	34,997
	Accumulated amortization(1)		(2,082		)	(33,899		)
	Below-market ground leases		3,198			3,198
	Accumulated amortization		(629		)	(552		)
	Acquired lease intangible assets, net		$	3,527		$	3,744
	Below-market tenant leases(2)		$	138,088		$	272,413
	Accumulated accretion(2)		(102,335		)	(225,425		)
	Above-market ground leases		16,200			16,200
	Accumulated accretion		(5,994		)	(3,645		)
	Acquired lease intangible liabilities, net		$	45,959		$	59,543
	________________________________________
	-1	During 2014, we removed the cost and accumulated amortization of $32.2 million of fully amortized above-market tenant leases from our balance sheet. December 31, 2013 balances include $31.1 million of fully amortized above-market tenant leases.
	-2	During 2014, we removed the cost and accumulated accretion of $137.3 million of fully accreted below-market tenant leases from our balance sheet. December 31, 2013 balances include $131.1 million of fully accreted below-market tenant leases.
Schedule Of Estimated Net Accretion	The table below presents (in thousands) the estimated net accretion of above- and below-market tenant leases and ground leases (excluding the impact of any acquisitions or dispositions) at December 31, 2014 for the next five years:
	Year
	2015	$	18,448		(1)
	2016	8,626
	2017	3,825
	2018	3,402
	2019	2,803
	Thereafter	5,328
	Total	$	42,432
	__________________________________________
	-1	Includes $6.6 million of accretion of an above-market ground lease as a result of our acquisition of the related fee interest in February 2015. See Note 19.

Other_Assets_Tables

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Other Assets [Abstract]
Schedule Of Other Assets	Other assets consisted of the following (in thousands) at December 31:
		2014		2013
	Deferred loan costs, net of accumulated amortization of $13,042 and $9,395 at December 31, 2014 and December 31, 2013, respectively(1)	$	15,623	$	17,745
	Note receivable(2)	27,500		—
	Restricted cash	194		194
	Prepaid expenses	6,108		5,747
	Other indefinite-lived intangible	1,988		1,988
	Deposits in escrow	2,500		—
	Other	3,357		2,933
	Total other assets	$	57,270	$	28,607
	___________________________________________________
	-1	We recognized deferred loan cost amortization expense of $4.1 million in 2014 and $4.2 million in 2013 and 2012. Deferred loan cost amortization is included as a component of interest expense in the consolidated statements of operations.
	-2	On February 28, 2014, we loaned $27.5 million to the owner of a fee interest related to one of our office buildings. The loan carried interest of 4.9% and was repaid in February 2015. See Note 19. The interest recognized on this note is included in other income in the consolidated statements of operations.

Secured_Notes_Payable_and_Revo1

Secured Notes Payable and Revolving Credit Facility (Tables)	12 Months Ended
	Dec. 31, 2014
Secured Debt [Abstract]
Schedule Of Secured Notes Payable	The following table summarizes (in thousands) our secured notes payable and revolving credit facility:
	Description (1)	Maturity		Outstanding Principal Balance as of December 31, 2014		Outstanding Principal Balance as of December 31, 2013		Variable Interest Rate	Effective	Swap Maturity Date
		Date							Annual
									Fixed Interest
									Rate (2)
	Fannie Mae Loan	2/1/15		—		111,920		DMBS + 0.707%	N/A	--
	Term Loan	12/24/15		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	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 (4)	8/5/18		355,000		355,000		N/A	4.14%	--
	Term Loan (5)	2/1/19		155,000		155,000		N/A	4.00%	--
	Term Loan (6)	6/5/19		285,000		285,000		N/A	3.85%	--
	Fannie Mae Loan	10/1/19		145,000		—		LIBOR + 1.25%	N/A	--
	Term Loan (7)	3/1/20	(8)	349,070		350,000		N/A	4.46%	--
	Fannie Mae Loans	11/2/20		388,080		388,080		LIBOR + 1.65%	3.65%	11/1/17
	Aggregate loan principal			3,253,290		3,201,140
	Revolving credit line (9)	12/11/17		182,000		40,000		LIBOR + 1.40%	N/A	--
	Total (10)			$	3,435,290	$	3,241,140
	Aggregate effectively fixed rate loans			$	1,828,080	$	1,828,080		3.98%
	Aggregate fixed rate loans			1,144,070		1,145,000			4.15%
	Aggregate variable rate loans			463,140		268,060			N/A
	Total (10)			$	3,435,290	$	3,241,140
	__________________________________________________
	-1	As of December 31, 2014, (i) the weighted average remaining life of our outstanding term debt (excluding our revolving credit line) was 3.9 years ; (ii) of the $2.97 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 the interest rate was fixed was 2.4 years and the weighted average annual interest rate was 4.05%; and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.15%. 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 December 31, 2014, and excludes amortization of prepaid loan fees, all shown on an actual/360-day basis. 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	Interest-only until February 2016, with principal amortization thereafter based upon a thirty years amortization table.
	-5	Interest-only until February 2015, with principal amortization thereafter based upon a thirty years amortization table.
	-6	Interest only until February 2017, with principal amortization thereafter based upon a thirty years amortization table.
	-7	Interest at a fixed interest rate until March 2018 and a floating rate thereafter, with interest-only payments until May 2016 and payments thereafter based upon a thirty years amortization table.
	-8	We have two one-year extension options, which would extend the maturity to March 1, 2020 from March 1, 2018, subject to meeting certain conditions.
	-9	Revolving credit facility under which we can borrow up to $300.0 million, and which is secured by 3 separate collateral pools consisting of a total of 6 properties. We are charged unused fees on the unused balance ranging from 0.15% to 0.20%.
	-10	See Note 12 for our fair value disclosures.
Schedule Of Minimum Future Principal Payments Due On Secured Notes Payable	As of December 31, 2014, 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 December 31:
	2015	$	22,267
	2016	109,339
	2017	619,410
	2018	1,731,874
	2019	564,320
	Thereafter	388,080
	Total future principal payments	$	3,435,290

Interest_Payable_Accounts_Paya1

Interest Payable, Accounts Payable and Deferred Revenue (Tables)	12 Months Ended
	Dec. 31, 2014
Accounts Payable and Accrued Liabilities [Abstract]
Schedule Of Accounts Payable And Accrued Expenses	Interest payable, accounts payable and deferred revenue consist of the following (in thousands) as of December 31:
		2014		2013
	Interest payable	$	9,656	$	9,263
	Accounts payable and accrued liabilities	22,195		20,761
	Deferred revenue	22,513		22,739
	Total interest payable, accounts payable and deferred revenue	$	54,364	$	52,763

Interest_Rate_Contracts_Tables

Interest Rate Contracts (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	Derivatives not designated as hedges are not speculative. As of December 31, 2014, 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		4		$100,000
	As of December 31, 2014, 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 Swap		1		$325,000
	As of December 31, 2014, 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		7		$1,828,080
Effect Of Derivative Instruments On Consolidated Statements Of Operations	The table below presents (in thousands) the effect of our derivative instruments on our AOCI and consolidated statements of operations for the year ended December 31:
		2014				2013			2012
	Derivatives Designated as Cash Flow Hedges:
	Gain (loss) recognized in AOCI (effective portion)1	$	(11,116	)		$	903		$	(49,432	)
	Gain (loss) recognized in AOCI (effective portion)1 related to our investment in unconsolidated real estate funds	$	(1,767	)		$	1,779		$	(1,356	)
	Loss reclassified from AOCI into interest expense (effective portion)	$	(36,874	)		$	(36,247	)	$	(55,748	)
	Loss reclassified from AOCI into income (loss), including depreciation, from unconsolidated real estate funds (effective portion)	$	(1,005	)		$	(549	)	$	(5,535	)
	Gain (loss) reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	$	(50	)		$	(85	)	$	4
	Loss on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	$	—			$	—		(64		)
	Derivatives Not Designated as Cash Flow Hedges:
	Realized and unrealized loss recognized as interest expense	$	—			$	(4	)	$	(42	)
	__________________________________________________
	-1	Gains and losses recognized in AOCI do not impact the income statement. Refer to the reconciliation of our AOCI in Note 9.
Schedule Of Fair Values Of Derivative Instruments	The table below presents (in thousands) the fair values of derivative instruments:
		2014				2013
	Derivative liabilities disclosed as "Interest Rate Contracts" (1):
	Derivatives designated as cash flow hedges	$	37,386			$	63,144
	Derivatives not designated as cash flow hedges	—				—
	Total derivative liabilities	$	37,386			$	63,144
	_________________________________________________________
	(1) We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Equity_Tables

Equity (Tables)	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Attributable to Parent [Abstract]
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 from the noncontrolling interests for the year ended December 31:
			2014				2013				2012
	Net income attributable to common stockholders		$	44,621			$	45,311			$	22,942
	Transfers from the noncontrolling interests:
	Increase in common stockholders paid-in capital for redemption of operating partnership units		30,013				18,670				44,876
	Change from net income attributable to common stockholders and transfers from noncontrolling interests		$	74,634			$	63,981			$	67,818
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 our cash flow hedges and the cash flow hedges of our unconsolidated Funds for the year ended December 31:
		2014				2013				2012
	Balance at beginning of period	$	(50,554	)		$	(82,991	)		$	(89,180	)
	Other comprehensive income (loss) before reclassifications 1	(12,884		)		2,681				(50,788		)
	Reclassifications from AOCI 2	37,929				36,881				61,279
	Net current period other comprehensive income	25,045				39,562				10,491
	Less other comprehensive income attributable to noncontrolling interests	(4,580		)		(7,125		)		(4,302		)
	Other comprehensive income attributable to common stockholders	20,465				32,437				6,189
	Balance at end of period	$	(30,089	)		$	(50,554	)		$	(82,991	)
	__________________________________________________
	-1	Includes (i) the fair value adjustments to our derivatives designated as cash flow hedges of $(11.1) million, $0.9 million and $(49.4) million in 2014 , 2013 and 2012, respectively, as well as (ii) our share of the fair value adjustments to the derivatives designated as cash flow hedges of our unconsolidated Funds of $(1.8) million, $1.8 million and $(1.4) million in 2014, 2013 and 2012, respectively.
	-2	Includes (i) a reclassification from AOCI to interest expense of $36.9 million, $36.3 million and $55.7 million in 2014, 2013 and 2012, respectively, of our derivatives designated as cash flow hedges, as well as (ii) a reclassification from AOCI to income (loss), including depreciation, of our unconsolidated real estate funds of $1 million, $0.5 million and $5.5 million in 2014, 2013 and 2012, respectively, related to derivatives designated as cash flow hedges of our unconsolidated Funds.
Common Stock Dividends Classification For United States Federal Income Tax Purposes	Our common stock dividends are classified for United States federal income tax purposes as follows (unaudited):
	Record Date		Paid Date		Dividend Per Share		Ordinary Income		Capital Gain		Return of Capital
	12/30/13		1/15/14		$0.20		$0.07		$—		$0.13
	3/31/14		4/15/14		0.2		0.074		—		0.126
	6/30/14		7/15/14		0.2		0.074		—		0.126
	9/30/14		10/15/14		0.2		0.074		—		0.126
			Total:		$0.80		$0.30		$—		$0.50

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The table below presents the calculation of basic and diluted EPS:
		Year Ended December 31,
		2014		2013		2012
	Numerator (in thousands):
	Net income attributable to common stockholders	$	44,621	$	45,311	$	22,942
	Add back: Net income attributable to noncontrolling interests in our Operating Partnership	8,543		9,021		4,965
	Numerator for diluted net income attributable to all equity holders	$	53,164	$	54,332	$	27,907
	Denominator (in thousands):
	Weighted average shares of common stock outstanding - basic	144,013		142,556		139,791
	Effect of dilutive securities(1):
	Operating partnership units and vested long term incentive plan (LTIP) units	27,574		28,381		30,251
	Stock options	4,108		3,288		2,487
	Unvested LTIP units	526		577		591
	Weighted average shares of common stock and common stock equivalents outstanding - diluted	176,221		174,802		173,120
	Basic earnings per share:
	Net income attributable to common stockholders per share	$	0.31	$	0.32	$	0.16
	Diluted earnings per share:
	Net income attributable to common stockholders per share	$	0.3	$	0.31	$	0.16
	____________________________________________________
	-1	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock, units in our operating partnership and other convertible equity instruments.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation [Abstract]
Summary Of Outstanding Stock Options	The table below presents the activity of our outstanding stock options granted under our stock incentive plan:
	Stock Options:	Number of Stock Options (thousands)		Weighted Average Exercise Price		Weighted	Total
						Average	Intrinsic Value (thousands)
						Remaining
						Contract Life
						(months)
	Outstanding at December 31, 2011	12,540		$	18.1	72	$	26,051
	Granted	—
	Outstanding at December 31, 2012	12,540		18.1		59	65,177
	Granted	—
	Outstanding at December 31, 2013	12,540		18.1		47	65,051
	Granted	—
	Exercised	(731	)	20.03
	Outstanding at December 31, 2014	11,809		17.98		36	123,017
	Exercisable at December 31, 2014	11,809		17.98		36	$	123,017
LTIP Units Granted Under Stock Incentive Plan	The table below presents the activity of our outstanding unvested LTIP Units granted under our stock incentive plan:
	Unvested LTIP Units:	Number of Units (thousands)		Weighted Average
				Grant Date
				Fair Value
	Outstanding at December 31, 2011	603		$	12.64
	Granted	1,255		15.26
	Vested	(965	)	13.76
	Forfeited	(2	)	17.43
	Outstanding at December 31, 2012	891		15.12
	Granted	663		15.26
	Vested	(785	)	14.15
	Forfeited	(15	)	21.52
	Outstanding at December 31, 2013	754		15.63
	Granted	1,106		19.31
	Vested	(854	)	17.44
	Forfeited	(8	)	22.48
	Outstanding at December 31, 2014	998		18.48

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments Schedule of derivative instruments fair value (Tables)	12 Months Ended
	Dec. 31, 2014
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:	December 31, 2014		December 31, 2013
	Fair value	$	3,293,351	$	3,233,555
	Carrying value	$	3,253,290	$	3,201,140
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)	December 31, 2014			December 31, 2013
	Level 1	$	—		$	—
	Level 2	37,386			63,144
	Level 3	—			—
	Fair Value of Derivative Instruments	$	37,386		$	63,144
	_________________________________________________________
	(1) We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Future_Minimum_Lease_Receipts_

Future Minimum Lease Receipts (Tables)	12 Months Ended
	Dec. 31, 2014
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 December 31, 2014:
	Twelve months ending December 31:
	2015	$	376,141
	2016	335,928
	2017	284,546
	2018	226,177
	2019	182,292
	Thereafter	444,007
	Total future minimum base rentals	$	1,849,091

Future_Minimum_Lease_Payments_

Future Minimum Lease Payments (Tables)	12 Months Ended
	Dec. 31, 2014
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Future Minimum Ground Lease Payments	The table below presents (in thousands) our future minimum ground lease payments as of December 31, 2014:
	Twelve months ending December 31:
	2015	$	733
	2016	733
	2017	733
	2018	733
	2019	733
	Thereafter	49,110
	Total future minimum lease payments	$	52,775	(1)

Segment_Reporting_Tables

Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Operating Activity Within Reportable Segments	The table below presents (in thousands) the operating activity of our reportable segments:
		Year Ended December 31,
		2014			2013			2012
	Office Segment
	Total office revenues	$	519,422		$	514,600		$	505,276
	Office expenses	(181,177		)	(174,952		)	(170,725		)
	Segment profit	338,245			339,648			334,551
	Multifamily Segment
	Total multifamily revenues	80,117			76,936			73,723
	Multifamily expenses	(20,664		)	(19,928		)	(19,672		)
	Segment profit	59,453			57,008			54,051
	Total profit from all segments	$	397,698		$	396,656		$	388,602
Reconciliation Of Segment Profit To Net Loss 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:
		Year Ended December 31,
		2014			2013			2012
	Total profit from all segments	$	397,698		$	396,656		$	388,602
	General and administrative expenses	(27,332		)	(26,614		)	(27,943		)
	Depreciation and amortization	(202,512		)	(191,351		)	(184,849		)
	Other income	17,675			6,402			2,821
	Other expenses	(7,095		)	(4,199		)	(1,883		)
	Income (loss), including depreciation, from unconsolidated real estate funds	3,713			3,098			(1,710		)
	Interest expense	(128,507		)	(130,548		)	(146,693		)
	Acquisition-related expenses	(786		)	(607		)	—
	Net income	52,854			52,837			28,345
	Less: Net income attributable to noncontrolling interests	(8,233		)	(7,526		)	(5,403		)
	Net income attributable to common stockholders	$	44,621		$	45,311		$	22,942

Quarterly_Financial_Informatio1

Quarterly Financial Information (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information [Abstract]
Schedule of Quarterly Financial Information	The tables below present (in thousands, except per share amounts) selected quarterly information for 2014 and 2013:
		Three Months Ended
		March 31,		30-Jun-14		30-Sep-14		31-Dec-14
		2014
	Total revenue	$	148,876	$	151,426	$	148,146	$	151,091
	Net income before noncontrolling interests	15,458		15,917		8,681		12,798
	Net income attributable to common stockholders	12,976		13,363		7,389		10,893
	Net income per common share - basic	$	0.09	$	0.09	$	0.05	$	0.08
	Net income per common share - diluted	$	0.09	$	0.09	$	0.05	$	0.07
	Weighted average shares of common stock outstanding - basic	143,140		143,717		144,361		144,823
	Weighted average shares of common stock outstanding - diluted	175,751		176,310		176,413		176,436
		Three Months Ended
		31-Mar-13		30-Jun-13		30-Sep-13		31-Dec-13
	Total revenue	$	145,458	$	148,716	$	149,686	$	147,676
	Net income before noncontrolling interests	14,612		14,978		12,743		10,504
	Net income attributable to common stockholders	12,082		13,635		10,751		8,843
	Net income per common share - basic	$	0.08	$	0.1	$	0.08	$	0.06
	Net income per common share - diluted	$	0.08	$	0.09	$	0.07	$	0.06
	Weighted average shares of common stock outstanding - basic	142,440		142,581		142,598		142,603
	Weighted average shares of common stock outstanding - diluted	174,579		175,252		174,756		174,600

Investments_In_Unconsolidated_1

Investments In Unconsolidated Real Estate Funds (Tables)	12 Months Ended
	Dec. 31, 2014
Real Estate Investments, Net [Abstract]
Equity investees summarized financial information	The amounts presented represent 100% (not our pro-rata share) of amounts related to the Funds and are based upon historical acquired book value:
		Year Ended December 31,
		2014		2013
	Total revenues	$	66,234	$	63,976
	Operating income	11,738		10,151
	Net income (loss)	254		(829		)
		December 31, 2014		December 31, 2013
	Total assets	$	703,130	$	722,983
	Total liabilities	389,413		391,892
	Total equity	313,717		331,091

Overview_Details

Overview (Details)	12 Months Ended
	Dec. 31, 2014
	fund
	property
Overview [Line Items]
Number of real estate funds owned and managed	2
Number of office properties owned	61
Wholly Owned Consolidated Office Properties [Member]
Overview [Line Items]
Number of office properties owned	53
Number of multifamily properties owned	10
Number of land parcels	2
Partially Owned Unconsolidated Office Properties [Member]
Overview [Line Items]
Number of office properties owned	8

Recovered_Sheet1

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 03, 2013
	segment
	subsidiary
Tenant improvements, fully depreciated, written off	$79,200,000
Leasing intangibles, fully amortized, written off	82,600,000
Above-market leases, fully amortized, written off	32,230,000	0	0
Below-market Leases, fully accreted, written off	137,313,000	0	0
Development costs capitalized	4,300,000	549,000
Interest costs capitalized	294,000	75,000
Additional basis	2,900,000
Lease termination revenue	2,600,000	576,000	985,000
Allowance for doubtful accounts	7,800,000	10,700,000
Letters of credit held for security	14,700,000	17,000,000
Security deposits	37,450,000	35,470,000
Number of segments	2
Percentage of minimum distribution of taxable income to qualify as a REIT	90.00%
Number of subsidiaries elected to be treated as taxable REIT subsidiaries	2
Building [Member]
Useful life	40 years 0 months
Site Improvements [Member]
Useful life	15 years 0 months
Fund X [Member]
Note receivable from related party	1,500,000	2,700,000		2,900,000
Above Market Tenant Leases [Member]
Above-market leases, fully amortized, written off	32,230,000
Below Market Tenant Leases [Member]
Below-market Leases, fully accreted, written off	137,313,000
Fully accreted below-market leases		$131,100,000
Partnership X [Member]
Ownership percentage	24.25%
Fund X [Member]
Ownership percentage	68.61%

Investment_in_Real_Estate_Deta

Investment in Real Estate (Details) (USD $)	Oct. 16, 2014	Dec. 30, 2014	15-May-13	Aug. 15, 2013
In Thousands, unless otherwise specified
Carthay Campus [Member]
Real Estate Acquisition [Line Items]
Land	$6,595
Buildings and improvements	64,511
Tenant improvements and lease intangibles	5,943
Acquired above and below-market leases, net	-2,580
Net assets and liabilities acquired	74,469
Waena [Member]
Real Estate Acquisition [Line Items]
Land		26,864
Buildings and improvements		117,541
Tenant improvements and lease intangibles		1,732
Acquired above and below-market leases, net		-137
Net assets and liabilities acquired		146,000
8484 Wilshire [Member]
Real Estate Acquisition [Line Items]
Land			8,847
Buildings and improvements			77,158
Tenant improvements and lease intangibles			6,485
Acquired above and below-market leases, net			-3,490
Net assets and liabilities acquired			89,000
16501 Ventura [Member]
Real Estate Acquisition [Line Items]
Land				6,759
Buildings and improvements				55,179
Tenant improvements and lease intangibles				4,736
Acquired above and below-market leases, net				-5,674
Net assets and liabilities acquired				$61,000

Investment_In_Real_Estate_Narr

Investment In Real Estate (Narrative) (Details) (USD $)	0 Months Ended
In Millions, unless otherwise specified	Dec. 30, 2014	Oct. 16, 2014	15-May-13	Aug. 15, 2013
	multifamily_unit	sqft	sqft	sqft
Carthay Campus [Member]
Real Estate Acquisition [Line Items]
Area of real estate property acquired		216,000
Price of real estate acquired		$74.50
Price paid for real estate acquired per square foot		345
Waena [Member]
Real Estate Acquisition [Line Items]
Price of real estate acquired	146
Number of multifamily units acquired	468
Price of real estate acquired (usd per multifamily unit)	312,000
8484 Wilshire [Member]
Real Estate Acquisition [Line Items]
Area of real estate property acquired			225,000
Price of real estate acquired			89
Price paid for real estate acquired per square foot			395
16501 Ventura [Member]
Real Estate Acquisition [Line Items]
Area of real estate property acquired				191,000
Price of real estate acquired				$61
Price paid for real estate acquired per square foot				319

Acquired_Lease_Intangibles_Sum

Acquired Lease Intangibles (Summary Of Acquired Lease Intangibles) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Schedule Of Acquired Lease Intangibles [Line Items]
Above-market leases, fully amortized, written off	$32,230,000		$0		$0
Acquired lease intangible assets, net	3,527,000		3,744,000
Acquired lease intangible liabilities, net	45,959,000		59,543,000
Below-market Leases, fully accreted, written off	137,313,000		0		0
Above Market Tenant Leases [Member]
Schedule Of Acquired Lease Intangibles [Line Items]
Above-market leases, fully amortized, written off	32,230,000
Acquired lease intangible assets, gross	3,040,000	[1]	34,997,000	[1]
Accumulated amortization	-2,082,000	[1]	-33,899,000	[1]
Fully amortized above-market leases			31,100,000
Below Market Ground Leases [Member]
Schedule Of Acquired Lease Intangibles [Line Items]
Acquired lease intangible assets, gross	3,198,000		3,198,000
Accumulated amortization	-629,000		-552,000
Below Market Tenant Leases [Member]
Schedule Of Acquired Lease Intangibles [Line Items]
Acquired lease intangible liabilities, gross	138,088,000	[2]	272,413,000	[2]
Accumulated accretion	-102,335,000	[2]	-225,425,000	[2]
Below-market Leases, fully accreted, written off	137,313,000
Fully accreted below-market leases			131,100,000
Above Market Ground Leases [Member]
Schedule Of Acquired Lease Intangibles [Line Items]
Acquired lease intangible liabilities, gross	16,200,000		16,200,000
Accumulated accretion	($5,994,000)		($3,645,000)
[1]	During 2014, we removed the cost and accumulated amortization of $32.2 million of fully amortized above-market tenant leases from our balance sheet. December 31, 2013 balances include $31.1 million of fully amortized above-market tenant leases.
[2]	During 2014, we removed the cost and accumulated accretion of $137.3 million of fully accreted below-market tenant leases from our balance sheet. December 31, 2013 balances include $131.1 million of fully accreted below-market tenant leases.

Acquired_Lease_Intangibles_Est

Acquired Lease Intangibles Estimated Net Accretion for the Next Five Years (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Estimated Net Accretion for the Next Five Years [Abstract]
2015	$18,448	[1]
2016	8,626
2017	3,825
2018	3,402
2019	2,803
Thereafter	5,328
Total	$42,432
[1]	Includes $6.6 million of accretion of an above-market ground lease as a result of our acquisition of the related fee interest in February 2015. See Note 19.

Acquired_Lease_Intangibles_Nar

Acquired Lease Intangibles (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2015
Schedule Of Acquired Lease Intangibles [Line Items]
Net Accretion of above and below market leases recognized in other income	$2,200,000
Net Accretion of above and below market leases recognized in rental income	13,934,000	15,693,000	18,094,000
Net Accretion of above and below market leases recognized in office rental expenses	122,000	122,000	122,000
Change In Estimate, Basic Earnings Per Share Impact	$0.02
Change In Estimate, Diluted Earnings Per Share Impact	$0.01
Scenario, Forecast [Member]
Schedule Of Acquired Lease Intangibles [Line Items]
Net Accretion of above and below market leases recognized in other income				$6,600,000

Other_Assets_Narrative_Details

Other Assets (Narrative) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Sep. 30, 2014	Feb. 28, 2014
						Rate
Other Assets [Abstract]
Amortization of deferred loan costs	$4,097		$4,214		$4,211
Note receivable	$27,500	[1]	$0	[1]			$27,500
Loan receivable interest rate						4.90%
[1]	On February 28, 2014, we loaned $27.5 million to the owner of a fee interest related to one of our office buildings. The loan carried interest of 4.9% and was repaid in February 2015. See Note 19. The interest recognized on this note is included in other income in the consolidated statements of operations.

Other_Assets_Schedule_Of_Other

Other Assets (Schedule Of Other Assets) (Details) (USD $)	Dec. 31, 2014		Feb. 28, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Assets [Abstract]
Deferred loan costs, net of accumulated amortization of $13,042 and $9,395 at December 31, 2014 and December 31, 2013, respectively(1)	$15,623	[1]		$17,745	[1]
Note receivable	27,500	[2]	27,500	0	[2]
Restricted cash	194			194
Prepaid expenses	6,108			5,747
Other indefinite-lived intangible	1,988			1,988
Deposits in escrow	2,500			0
Other	3,357			2,933
Total other assets	57,270			28,607
Accumulated amortization of deferred loan costs	$13,042			$9,395
[1]	We recognized deferred loan cost amortization expense of $4.1 million in 2014 and $4.2 million in 2013 and 2012. Deferred loan cost amortization is included as a component of interest expense in the consolidated statements of operations.
[2]	On February 28, 2014, we loaned $27.5 million to the owner of a fee interest related to one of our office buildings. The loan carried interest of 4.9% and was repaid in February 2015. See Note 19. The interest recognized on this note is included in other income in the consolidated statements of operations.

Secured_Notes_Payable_and_Revo2

Secured Notes Payable and Revolving Credit Facility (Schedule Of Secured Notes Payable) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Debt Instrument [Line Items]
Carrying value of secured loans	$3,435,290,000	[1]	$3,241,140,000	[1]
Aggregate loan principal	3,253,290,000	[2]	3,201,140,000
Weighted average remaining life of outstanding term debt	3 years 11 months
Debt at fixed interest rate	2,970,000,000
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	4.05%
Effective weighted average interest rate for fixed & effectively fixed rate debt	4.15%
Ownership percentage in joint venture	66.67%
Fixed Interest Rate Loan [Member]
Debt Instrument [Line Items]
Weighted average life of fixed interest rate for fixed & effectively fixed rate debt (in years)	2 years 5 months
Effective Fixed Rate Loans [Member]
Debt Instrument [Line Items]
Carrying value of secured loans	1,828,080,000		1,828,080,000
Annual fixed interest rate	3.98%	[3]
Fixed Rate Loans [Member]
Debt Instrument [Line Items]
Carrying value of secured loans	1,144,070,000		1,145,000,000
Annual fixed interest rate	4.15%	[3]
Variable Rate Loans [Member]
Debt Instrument [Line Items]
Carrying value of secured loans	463,140,000		268,060,000
Fannie Mae Loan With Interest Rate At 0.707% BPS Over DMBS [Member]
Debt Instrument [Line Items]
Maturity date	1-Feb-15
Carrying value of secured loans	0		111,920,000
Variable interest rate	DMBS + 0.707%
Term Loan With Maturity Date Of 12/24/2015 [Member]
Debt Instrument [Line Items]
Maturity date	24-Dec-15
Carrying value of secured loans	20,000,000		0
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
Carrying value of secured loans	16,140,000	[4]	16,140,000	[4]
Variable interest rate	LIBOR + 1.60%
Term Loan With Maturity Date 3/1/2016 [Member]
Debt Instrument [Line Items]
Maturity date	1-Mar-16
Carrying value of secured loans	82,000,000		82,000,000
Variable interest rate	LIBOR + 0.62%
TermLoanWithMaturityDateOf6/1/2017 [Member]
Debt Instrument [Line Items]
Maturity date	1-Jun-17
Carrying value of secured loans	18,000,000		18,000,000
Variable interest rate	LIBOR + 0.62%
Term Loan With Effective Annual Fixed Interest Rate At 4.45% [Member]
Debt Instrument [Line Items]
Maturity date	2-Oct-17
Carrying value of secured loans	400,000,000		400,000,000
Variable interest rate	LIBOR + 2.00%
Annual fixed interest rate	4.45%	[3]
Swap maturity date	1-Jul-15
Term Loan With Effective Annual Fixed Interest Rate At 4.12% [Member]
Debt Instrument [Line Items]
Maturity date	2-Apr-18
Carrying value of secured loans	510,000,000		510,000,000
Variable interest rate	LIBOR + 2.00%
Annual fixed interest rate	4.12%	[3]
Swap maturity date	1-Apr-16
Term Loan With Effective Annual Fixed Interest Rate At 3.74% [Member]
Debt Instrument [Line Items]
Maturity date	1-Aug-18
Carrying value of secured loans	530,000,000		530,000,000
Variable interest rate	LIBOR + 1.70%
Annual fixed interest rate	3.74%	[3]
Swap maturity date	1-Aug-16
Term Loan With Effective Annual Fixed Interest Rate At Four Point One Four Percentage [Member]
Debt Instrument [Line Items]
Maturity date	5-Aug-18
Carrying value of secured loans	355,000,000	[5]	355,000,000	[5]
Annual fixed interest rate	4.14%	[3]
Monthly interest-only payments end date	5-Feb-16
Fixed Rate Debt Amortization Period	30 years
Term Loan With Effective Annual Fixed Interest Rate At 4.00% [Member]
Debt Instrument [Line Items]
Maturity date	1-Feb-19
Carrying value of secured loans	155,000,000	[6]	155,000,000	[6]
Annual fixed interest rate	4.00%	[3]
Monthly interest-only payments end date	1-Feb-15
Fixed Rate Debt Amortization Period	30 years
Long term Fixed Rate Debt with effective interest rate of 385 bps [Member]
Debt Instrument [Line Items]
Maturity date	5-Jun-19
Carrying value of secured loans	285,000,000	[7]	285,000,000	[7]
Annual fixed interest rate	3.85%	[3]
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
Carrying value of secured loans	145,000,000		0
Variable interest rate	LIBOR + 1.25%
Term Loan With Effective Annual Fixed Interest Rate At 4.46% [Member]
Debt Instrument [Line Items]
Maturity date	1-Mar-20
Carrying value of secured loans	349,070,000	[8],[9]	350,000,000	[8],[9]
Annual fixed interest rate	4.46%	[3]
Monthly interest-only payments end date	1-May-16
Fixed Rate Debt Amortization Period	30 years
Debt instrument period of fixed interest end date	1-Mar-18
Number of one-year extension options	2
Entity One Rate Six With Effective Annual Fixed Interest Rate At Three Point Six Five Percentage [Member]
Debt Instrument [Line Items]
Maturity date	2-Nov-20
Carrying value of secured loans	388,080,000		388,080,000
Variable interest rate	LIBOR + 1.65%
Annual fixed interest rate	3.65%	[3]
Swap maturity date	1-Nov-17
Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Maturity date	11-Dec-17
Revolving credit line	182,000,000	[10]	40,000,000	[10]
Variable interest rate	LIBOR + 1.40%
Revolving credit facility, maximum borrowing capacity	$300,000,000
Revolving 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 on variable rate	1.45%
LIBOR [Member] | DEG III term loan debt with maturity date of 3/1/16 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.60%
LIBOR [Member] | Term Loan With Maturity Date 3/1/2016 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.62%
LIBOR [Member] | TermLoanWithMaturityDateOf6/1/2017 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.62%
LIBOR [Member] | Term Loan With Effective Annual Fixed Interest Rate At 4.45% [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
LIBOR [Member] | Term Loan With Effective Annual Fixed Interest Rate At 4.12% [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
LIBOR [Member] | Term Loan With Effective Annual Fixed Interest Rate At 3.74% [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.70%
LIBOR [Member] | Term Loan With Maturity Date Of 10/1/2019 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
LIBOR [Member] | Entity One Rate Six With Effective Annual Fixed Interest Rate At Three Point Six Five Percentage [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.65%
LIBOR [Member] | Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
DMBS [Member] | Fannie Mae Loan With Interest Rate At 0.707% BPS Over DMBS [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.71%
outstanding principal is greater than $100,000,000 [Member] | Revolving Credit Facility With Maturity Date 12/11/17 [Member]
Debt Instrument [Line Items]
Commitment fee, percentage	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]
Commitment fee, percentage	0.20%
[1]	See Note 12 for our fair value disclosures.
[2]	As of December 31, 2014, (i) the weighted average remaining life of our outstanding term debt (excluding our revolving credit line) was 3.9 years ; (ii) of the $2.97 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 the interest rate was fixed was 2.4 years and the weighted average annual interest rate was 4.05%; and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.15%. 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.
[3]	Includes the effect of interest rate contracts as of December 31, 2014, and excludes amortization of prepaid loan fees, all shown on an actual/360-day basis. See Note 8 for the details of our interest rate contracts.
[4]	The borrower is a consolidated entity in which our operating partnership owns a two-thirds interest.
[5]	Interest-only until February 2016, with principal amortization thereafter based upon a thirty years amortization table.
[6]	Interest-only until February 2015, with principal amortization thereafter based upon a thirty years amortization table.
[7]	Interest only until February 2017, with principal amortization thereafter based upon a thirty years amortization table.
[8]	We have two one-year extension options, which would extend the maturity to March 1, 2020 from March 1, 2018, subject to meeting certain conditions.
[9]	Interest at a fixed interest rate until March 2018 and a floating rate thereafter, with interest-only payments until May 2016 and payments thereafter based upon a thirty years amortization table.
[10]	Revolving credit facility under which we can borrow up to $300.0 million, and which is secured by 3 separate collateral pools consisting of a total of 6 properties. We are charged unused fees on the unused balance ranging from 0.15% to 0.20%.

Secured_Notes_Payable_and_Revo3

Secured Notes Payable and Revolving Credit Facility (Schedule Of Minimum Future Principal Payments Due On Secured Notes Payable) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Secured Debt [Abstract]
2015	$22,267
2016	109,339
2017	619,410
2018	1,731,874
2019	564,320
Thereafter	388,080
Total future principal payments	$3,435,290	[1]	$3,241,140	[1]
[1]	See Note 12 for our fair value disclosures.

Interest_Payable_Accounts_Paya2

Interest Payable, Accounts Payable and Deferred Revenue Interest Payable, Accounts Payable and Deferred Revenue (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accounts Payable and Accrued Liabilities [Abstract]
Interest payable	$9,656	$9,263
Accounts payable and accrued liabilities	22,195	20,761
Deferred revenue	22,513	22,739
Total interest payable, accounts payable and deferred revenue	$54,364	$52,763

Interest_Rate_Contracts_Narrat

Interest Rate Contracts (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013
Terminated in 2011 [Member]
Derivative [Line Items]
AOCI balance of cash flow swaps terminated		$10,100,000
Amortization of the AOCI balance of cash flow swaps terminated	8,800,000	1,300,000
Parent [Member]
Derivative [Line Items]
Fair value of derivatives in a net liability position			41,000,000	67,200,000
Derivative designated as cash flow hedge to be reclassified			29,200,000
Fund X [Member]
Derivative [Line Items]
Derivative designated as cash flow hedge to be reclassified			$584,000

Interest_Rate_Contracts_Intere

Interest Rate Contracts (Interest Rate Derivatives Designated As Hedging Instruments) (Details) (Interest Rate Swaps, USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	instrument
Parent [Member]
Derivative [Line Items]
Number of Instruments	7
Notional	$1,828,080
Fund X [Member]
Derivative [Line Items]
Number of Instruments	1
Notional	$325,000

Interest_Rate_Contracts_Intere1

Interest Rate Contracts (Interest Rate Derivatives Non-Designated As Hedging Instruments) (Details) (Parent [Member], Purchased Caps, USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	instrument
Parent [Member] | Purchased Caps
Derivative [Line Items]
Number of Instruments	4
Notional	$100,000

Interest_Rate_Contracts_Effect

Interest Rate Contracts (Effect Of Derivative Instruments On Consolidated Statements Of Operations) (Details) (Cash Flow Hedging [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Parent [Member] | Derivatives Designated As Hedges [Member]
Derivative [Line Items]
Gain (loss) recognized in AOCI (effective portion)	($11,116)	[1]	$903	[1]	($49,432)	[1]
Loss reclassified from AOCI into earnings (effective portion)	-36,874		-36,247		-55,748
Parent [Member] | Interest Expense [Member] | Derivatives Designated As Hedges [Member]
Derivative [Line Items]
Gain (loss) reclassified from AOCI into interest expense (ineffective portion and amount excluded from effectiveness testing)	-50		-85		4
Loss on derivatives recognized as interest expense (ineffective portion and amount excluded from effectiveness testing)	0		0		-64
Parent [Member] | Interest Expense [Member] | Derivatives Not Designated As Hedges [Member]
Derivative [Line Items]
Realized and unrealized loss recognized as interest expense	0		-4		-42
Fund X [Member] | Derivatives Designated As Hedges [Member]
Derivative [Line Items]
Gain (loss) recognized in AOCI (effective portion)	-1,767	[1]	1,779	[1]	-1,356	[1]
Loss reclassified from AOCI into earnings (effective portion)	($1,005)		($549)		($5,535)
[1]	Gains and losses recognized in AOCI do not impact the income statement. Refer to the reconciliation of our AOCI in Note 9.

Interest_Rate_Contracts_Deriva

Interest Rate Contracts (Derivatives Fair Value) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$37,386	[1]	$63,144	[1]
Derivatives designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	37,386		63,144
Derivatives not designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$0		$0
[1]	We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Equity_Narrative_Details

Equity (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity Attributable to Parent [Abstract]
Number of operating partnership units converted to shares of common stock		2,200,000	1,400,000	3,200,000
Number of operating partnership units redeemed for cash		120,000	13,000
Total purchase price		$2,826	$352	$0
Average redemption price (usd per share)		$23.56	$26.68
Common stock options settled (in shares)		691,000
Purchase price of stock options		4,524	0	0
Average purchase price of options (usd per share)		$6.55
Exercise of stock options (in shares)		40,000
Exercise of stock options		603	0	0
Exercise of stock options, average share price (usd per share)		$15.05
Issuance of common stock, net		$0	$0	$128,257
Common stock sold (in shares)				6,900,000
Common stock, shares outstanding	142,605,390	144,869,101	142,605,390
Operating partnership units and fully-vested long-term incentive plan units outstanding		27,600,000
Noncontrolling interest, ownership percentage by noncontrolling owners		16.00%
Ownership percentage in joint venture		66.67%
Number of Shares of Common Stock issued upon redemption of one OP unit		1
Common Stock, Dividends, Per Share, Cash Paid	$0.18	$0.80

Equity_Net_Income_Attributable

Equity (Net Income Attributable To Common Stockholders And Transfers (To) From Noncontrolling Interests) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity Attributable to Parent [Abstract]
Net income attributable to common stockholders	$10,893	$7,389	$13,363	$12,976	$8,843	$10,751	$13,635	$12,082	$44,621	$45,311	$22,942
Increase in common stockholders paid-in capital for redemption of operating partnership units									30,013	18,670	44,876
Change from net income attributable to common stockholders and transfers from noncontrolling interests									$74,634	$63,981	$67,818

Equity_Accumulated_Other_Compr

Equity Accumulated Other Comprehensive Income Schedule (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	($50,554)
Net current period other comprehensive income	25,045		39,562		10,491
Balance at end of period	-30,089		-50,554
Fund X [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications 1	-1,800		1,800		-1,400
Reclassifications from AOCI	1,000		500		5,500
Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications 1	-11,100		900		-49,400
Reclassifications from AOCI	36,900		36,300		55,700
Cash Flow Hedging [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	-50,554	[1],[2]	-82,991	[1],[2]	-89,180
Other comprehensive income (loss) before reclassifications 1	-12,884	[3]	2,681	[3]	-50,788	[3]
Reclassifications from AOCI	37,929	[4]	36,881	[4]	61,279	[4]
Net current period other comprehensive income	25,045		39,562		10,491
Less other comprehensive income attributable to noncontrolling interests	-4,580		-7,125		-4,302
Other comprehensive income attributable to common stockholders	20,465		32,437		6,189
Balance at end of period	($30,089)	[1],[2]	($50,554)	[1],[2]	($82,991)	[1],[2]
[1]	See Note 12 for our fair value disclosures.
[2]	See Note 8 for the details of our derivatives that qualified and were designated as cash flow hedges.
[3]	Includes (i) the fair value adjustments to our derivatives designated as cash flow hedges of $(11.1) million, $0.9 million and $(49.4) million in 2014 , 2013 and 2012, respectively, as well as (ii) our share of the fair value adjustments to the derivatives designated as cash flow hedges of our unconsolidated Funds of $(1.8) million, $1.8 million and $(1.4) million in 2014, 2013 and 2012, respectively.
[4]	Includes (i) a reclassification from AOCI to interest expense of $36.9 million, $36.3 million and $55.7 million in 2014, 2013 and 2012, respectively, of our derivatives designated as cash flow hedges, as well as (ii) a reclassification from AOCI to income (loss), including depreciation, of our unconsolidated real estate funds of $1 million, $0.5 million and $5.5 million in 2014, 2013 and 2012, respectively, related to derivatives designated as cash flow hedges of our unconsolidated Funds.

Equity_Dividends_Details

Equity (Dividends) (Details) (USD $)	3 Months Ended	12 Months Ended	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Mar. 31, 2014	Jun. 30, 2014	Sep. 30, 2014	Dec. 31, 2014
Dividends Payable [Line Items]
Dividend Per Share (usd per share)	$0.18	$0.80
Ordinary Income (usd per share)		$0.30
Capital Gain (usd per share)		$0
Return of Capital (usd per share)		$0.50
Dividends Paid, 1/15/2014 [Member]
Dividends Payable [Line Items]
Record Date			30-Dec-13
Paid Date			15-Jan-14
Dividend Per Share (usd per share)			$0.20
Ordinary Income (usd per share)			$0.07
Capital Gain (usd per share)			$0
Return of Capital (usd per share)			$0.13
Dividends Paid, 4/15/2014 [Member]
Dividends Payable [Line Items]
Record Date				31-Mar-14
Paid Date				15-Apr-14
Dividend Per Share (usd per share)				$0.20
Ordinary Income (usd per share)				$0.07
Capital Gain (usd per share)				$0
Return of Capital (usd per share)				$0.13
Dividends Paid, 7/15/2014 [Member]
Dividends Payable [Line Items]
Record Date					30-Jun-14
Paid Date					15-Jul-14
Dividend Per Share (usd per share)					$0.20
Ordinary Income (usd per share)					$0.07
Capital Gain (usd per share)					$0
Return of Capital (usd per share)					$0.13
Dividends Paid, 10/15/2014 [Member]
Dividends Payable [Line Items]
Record Date						30-Sep-14
Paid Date						15-Oct-14
Dividend Per Share (usd per share)						$0.20
Ordinary Income (usd per share)						$0.07
Capital Gain (usd per share)						$0
Return of Capital (usd per share)						$0.13

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Earnings Per Share [Abstract]
Net income attributable to common stockholders	$10,893	$7,389	$13,363	$12,976	$8,843	$10,751	$13,635	$12,082	$44,621		$45,311		$22,942
Add back: Net income attributable to noncontrolling interests in our Operating Partnership									8,543		9,021		4,965
Numerator for diluted net income attributable to all equity holders									$53,164		$54,332		$27,907
Weighted average shares of common stock outstanding - basic	144,823	144,361	143,717	143,140	142,603	142,598	142,581	142,440	144,013		142,556		139,791
Operating partnership units and vested long term incentive plan (LTIP) units									27,574	[1]	28,381	[1]	30,251	[1]
Stock options									4,108	[1]	3,288	[1]	2,487	[1]
Unvested LTIP units									526	[1]	577	[1]	591	[1]
Weighted average shares of common stock and common stock equivalents outstanding - diluted	176,436	176,413	176,310	175,751	174,600	174,756	175,252	174,579	176,221	[1]	174,802	[1]	173,120	[1]
Net income attributable to common stockholders per share – basic (usd per share)	$0.08	$0.05	$0.09	$0.09	$0.06	$0.08	$0.10	$0.08	$0.31		$0.32		$0.16
Net income attributable to common stockholders per share – diluted (usd per share)	$0.07	$0.05	$0.09	$0.09	$0.06	$0.07	$0.09	$0.08	$0.30		$0.31		$0.16
[1]	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock, units in our operating partnership and other convertible equity instruments.

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	16,700,000
Number of full value shares counted against overall limits of the stock incentive plan	2
Number of shares counted against overall limits of the stock incentive plan, vesting in over five years	1
Number of shares counted against overall limits of the stock incentive plan, vesting in five years or less	0.9
Awards granted to key employees (in shares)	1,100,000	600,000	1,200,000
Non-employee director awards granted in lieu of cash compensation (shares)	15,000	19,000	46,000
Non-employee director aggregate triennial awards (in shares)			54,000
New non-employee director aggregate triennial awards (in shares)			1,000
Equity compensation expense	$13,722,000	$10,005,000	$10,581,000
Capitalized equity compensation	1,100,000	800,000	561,000
Total Grant Date Fair Value of LTIP Awards	21,400,000	10,100,000	19,200,000	4,100,000
Intrinsic Value of Option Exercises	5,000,000
Total grant date fair value of LTIP Units which vested during the period	14,900,000	10,900,000	13,500,000
Unrecognized compensation cost related to nonvested options and LTIP Unit awards	$15,400,000
Unrecognized compensation cost related to nonvested options and LTIP Unit awards, recognition period	26 months
Stock Appreciation Rights and Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	5 years
Key Employees [Member] | Long-term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	3 years
Number Of Annual Vesting Installments	3
Executives And Certain Key Employees [Member] | Long-term Incentive Plan Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years
Executives And Certain Key Employees [Member] | Long-term Incentive Plan Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	5 years
Non-employee Director [Member] | Long-term Incentive Plan Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	3 years
Period between grants	3 years

Fair_value_of_stock_options_De

Fair value of stock options (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Number of Stock Options (Beginning Balance)	12,540	12,540	12,540
Outstanding, Weighted Average Exercise Price (usd per share) (Beginning Balance)	$18.10	$18.10	$18.10
Outstanding, Weighted Average Remaining Contract Life (Beginning Balance)	36 months	47 months	59 months	72 months
Outstanding, Total Intrinsic Value (Beginning Balance)	$65,051	$65,177	$26,051
Granted Number of Stock Options	0	0	0
Exercised, Number of Stock Options	-731
Exercised, Weighted Average Exercise Price (usd per share)	$20.03
Outstanding, Number of Stock Options (Ending Balance)	11,809	12,540	12,540	12,540
Outstanding, Weighted Average Exercise Price (usd per share) (Ending Balance)	$17.98	$18.10	$18.10	$18.10
Outstanding, Weighted Average Remaining Contract Life (Ending Balance)	36 months	47 months	59 months	72 months
Outstanding, Total Intrinsic Value (Ending Balance)	123,017	65,051	65,177	26,051
Exercisable, Number of Stock Options	11,809
Exercisable, Weighted Average Exercise Price (usd per share)	$17.98
Exercisable, Weighted Average Remaining Contract Life	36 months
Exercisable, Total Intrinsic Value	$123,017

LTIP_Units_Details

LTIP Units (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
LTIP Units [Roll Forward]
Outstanding, Number of Units (Beginning Balance)	754	891	603
Outstanding, Weighted Average Grant Date Fair Value (usd per share) (Beginning Balance)	$15.63	$15.12	$12.64
Granted, Number of Units	1,106	663	1,255
Granted, Weighted Average Grant Date Fair Value (usd per share)	$19.31	$15.26	$15.26
Vested, Number of Units	-854	-785	-965
Vested, Weighted Average Grant Date Fair Value (usd per share)	$17.44	$14.15	$13.76
Forfeited, Number of Units	-8	-15	-2
Forfeited, Weighted Average Grant Date Fair Value (usd per share)	$22.48	$21.52	$17.43
Outstanding, Number of Units (Ending Balance)	998	754	891
Outstanding, Weighted Average Grant Date Fair Value (usd per share) (Ending Balance)	$18.48	$15.63	$15.12

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Estimated Fair Value of Secured Notes Payable (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]
Fair value	$3,293,351		$3,233,555
Carrying value	$3,253,290	[1]	$3,201,140
[1]	As of December 31, 2014, (i) the weighted average remaining life of our outstanding term debt (excluding our revolving credit line) was 3.9 years ; (ii) of the $2.97 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 the interest rate was fixed was 2.4 years and the weighted average annual interest rate was 4.05%; and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.15%. 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.

Recovered_Sheet2

Fair Value Of Financial Instruments (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Derivative Instruments	$37,386	[1]	$63,144	[1]
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Derivative Instruments	0		0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Derivative Instruments	37,386		63,144
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Derivative Instruments	$0		$0
[1]	We did not have any derivative assets as of December 31, 2014 and December 31, 2013.

Future_Minimum_Lease_Receipts_1

Future Minimum Lease Receipts (Narrative) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Receivable [Abstract]
Percentage rental income	$548	$576	$658

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 $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Operating Leases, Future Minimum Payments Receivable [Abstract]
2015	$376,141
2016	335,928
2017	284,546
2018	226,177
2019	182,292
Thereafter	444,007
Total future minimum base rentals	$1,849,091

Future_Minimum_Lease_Payments_1

Future Minimum Lease Payments (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	lease
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Office properties	2
Ground lease payments expense	$2.60	$2.20	$2.20
Number of ground leases with purchase options	1

Future_Minimum_Lease_Payments_2

Future Minimum Lease Payments (Future Minimum Ground Lease Payments) (Details) (USD $)	Dec. 31, 2014		Mar. 01, 2019
In Thousands, unless otherwise specified
Operating Leased Assets [Line Items]
Future ground rent payments per year	$733
2015	733
2016	733
2017	733
2018	733
2019	733
Thereafter	49,110
Total future minimum lease payments	52,775	[1]
Scenario, Forecast [Member]
Operating Leased Assets [Line Items]
Future ground rent payments per year			$733
[1]	Lease term ends on December 31, 2086, and requires ground rent payments totaling $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 will continue to be $733 thousand per year after February 28, 2019.

Commitments_Contingencies_and_1

Commitments, Contingencies and Guarantees (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
			tenant	tenant
Other Commitments [Line Items]
Amount accounts are insured by Federal Deposit Insurance Corporation	$250,000
Loan principal	3,253,290,000	[1]	3,201,140,000
Number of tenants accounting for more than 10% of our total rental revenue and tenant recoveries	0		0	0
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	$4,600,000
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
[1]	As of December 31, 2014, (i) the weighted average remaining life of our outstanding term debt (excluding our revolving credit line) was 3.9 years ; (ii) of the $2.97 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 the interest rate was fixed was 2.4 years and the weighted average annual interest rate was 4.05%; and (b) including the non-cash amortization of prepaid loan fees, the effective weighted average interest rate was 4.15%. 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.

Segment_Reporting_Narrative_De

Segment Reporting (Narrative) (Details)	12 Months Ended
	Dec. 31, 2014
	segment
Segment Reporting [Abstract]
Number of segments	2

Segment_Reporting_Operating_Ac

Segment Reporting (Operating Activity Within Reportable Segments) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total office revenues	$519,422	$514,600	$505,276
Office expenses	-181,177	-174,952	-170,725
Total multifamily revenues	80,117	76,936	73,723
Multifamily expenses	-20,664	-19,928	-19,672
Segment profit	397,698	396,656	388,602
Office Segment [Member]
Segment Reporting Information [Line Items]
Total office revenues	519,422	514,600	505,276
Office expenses	-181,177	-174,952	-170,725
Segment profit	338,245	339,648	334,551
Multifamily Segment [Member]
Segment Reporting Information [Line Items]
Total multifamily revenues	80,117	76,936	73,723
Multifamily expenses	-20,664	-19,928	-19,672
Segment profit	$59,453	$57,008	$54,051

Segment_Reporting_Reconciliati

Segment Reporting (Reconciliation Of Segment Profit To Net Income Attributable To Common Stockholders) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting [Abstract]
Total profit from all segments									$397,698	$396,656	$388,602
General and administrative expenses									-27,332	-26,614	-27,943
Depreciation and amortization									-202,512	-191,351	-184,849
Other income									17,675	6,402	2,821
Other expenses									-7,095	-4,199	-1,883
Income (loss), including depreciation, from unconsolidated real estate funds									3,713	3,098	-1,710
Interest expense									-128,507	-130,548	-146,693
Acquisition-related expenses									-786	-607	0
Net income	12,798	8,681	15,917	15,458	10,504	12,743	14,978	14,612	52,854	52,837	28,345
Less: Net income attributable to noncontrolling interests									-8,233	-7,526	-5,403
Net income attributable to common stockholders	$10,893	$7,389	$13,363	$12,976	$8,843	$10,751	$13,635	$12,082	$44,621	$45,311	$22,942

Quarterly_Financial_Informatio2

Quarterly Financial Information (unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Quarterly Financial Information [Abstract]
Total revenue	$151,091	$148,146	$151,426	$148,876	$147,676	$149,686	$148,716	$145,458	$599,539		$591,536		$578,999
Net income	12,798	8,681	15,917	15,458	10,504	12,743	14,978	14,612	52,854		52,837		28,345
Net income attributable to common stockholders	$10,893	$7,389	$13,363	$12,976	$8,843	$10,751	$13,635	$12,082	$44,621		$45,311		$22,942
Net income per common share - basic	$0.08	$0.05	$0.09	$0.09	$0.06	$0.08	$0.10	$0.08	$0.31		$0.32		$0.16
Net income per common share - diluted	$0.07	$0.05	$0.09	$0.09	$0.06	$0.07	$0.09	$0.08	$0.30		$0.31		$0.16
Weighted average shares of common stock outstanding - basic	144,823	144,361	143,717	143,140	142,603	142,598	142,581	142,440	144,013		142,556		139,791
Weighted average shares of common stock outstanding - diluted	176,436	176,413	176,310	175,751	174,600	174,756	175,252	174,579	176,221	[1]	174,802	[1]	173,120	[1]
[1]	Diluted shares are calculated in accordance with GAAP, and represent ownership in our company through shares of common stock, units in our operating partnership and other convertible equity instruments.

Investments_In_Unconsolidated_2

Investments In Unconsolidated Real Estate Funds Narrative (Details) (USD $)	12 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Apr. 03, 2013
	fund
	property
Schedule of Equity Method Investments [Line Items]
Number of real estate funds owned and managed	2
Number of office properties owned	61
Total equity method distributions received	$12.40	$8.30	$5.50
Percentage Of amounts related to Fund	100.00%
Partnership X [Member]
Schedule of Equity Method Investments [Line Items]
Additional interest acquired, percent				0.90%
Partially Owned Unconsolidated Office Properties [Member]
Schedule of Equity Method Investments [Line Items]
Area of real estate property	1,800,000
Additional interest acquired, value				8
Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Additional interest acquired, percent				3.30%	16.30%
Additional interest acquired, value					33.4
Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Note receivable from related party	$1.50	$2.70				$2.90
Related party transaction date	1-Apr-17
Partially Owned Unconsolidated Office Properties [Member]
Schedule of Equity Method Investments [Line Items]
Number of office properties owned	8
Partnership X [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	24.25%
Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	68.61%
LIBOR [Member] | Fund X [Member]
Schedule of Equity Method Investments [Line Items]
Variable rate description	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 $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Real Estate Investments, Net [Abstract]
Total revenues	$66,234	$63,976
Operating income	11,738	10,151
Net income (loss)	$254	($829)

Investments_In_Unconsolidated_4

Investments In Unconsolidated Real Estate Funds (Summary Of Financial Position For Investments In Unconsolidated Real Estate Funds) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Real Estate Investments, Net [Abstract]
Total assets	$703,130	$722,983
Total liabilities	389,413	391,892
Total equity	$313,717	$331,091

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended		0 Months Ended		3 Months Ended
	Dec. 31, 2014		Feb. 12, 2015	Dec. 29, 2014	Mar. 31, 2015	Feb. 28, 2014	Dec. 31, 2013
Subsequent Event [Line Items]
Note receivable	$27,500,000	[1]				$27,500,000	$0	[1]
Net Accretion of above and below market leases recognized in other income	2,200,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Note receivable, non cash consideration repayment			26,500,000
Note receivable, cash consideration, repayment			1,000,000
Issuance of operating partnership units (in units)			34,412
Value of operating partnership units issued			1,000,000
Encino Property [Member]
Subsequent Event [Line Items]
Area of real estate property acquired				224,000
Price of real estate acquired				89,000,000
Price paid for real estate acquired per square foot				397
Scenario, Forecast [Member]
Subsequent Event [Line Items]
Net Accretion of above and below market leases recognized in other income					$6,600,000
[1]	On February 28, 2014, we loaned $27.5 million to the owner of a fee interest related to one of our office buildings. The loan carried interest of 4.9% and was repaid in February 2015. See Note 19. The interest recognized on this note is included in other income in the consolidated statements of operations.

Schedule_III_Details

Schedule III (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Encumbrances at December 31, 2014	$3,435,290,000
Initial Cost of Land	634,627,000
Initial Cost of Buildings & Improvements	2,972,038,000
Costs Capitalized Subsequent to Acquisition, Improvements	3,550,938,000
Gross Carrying Amount of Land	900,813,000
Gross Carrying Amount of Buildings & Improvements	6,256,790,000
Gross Carrying Amount of Land and Buildings & Improvements	7,157,603,000	7,012,733,000	6,786,537,000
Accumulated Depreciation at December 31, 2014	-1,531,157,000	-1,495,819,000	-1,304,468,000
Aggregate cost of total real estate for federal income tax purposes	4,250,000,000
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, beginning of period	7,012,733,000	6,786,537,000	6,726,018,000
Real Estate Assets, Additions: property acquisitions	223,186,000	146,497,000	0
Real Estate Assets, Additions: improvements	84,578,000	79,150,000	60,519,000
Real Estate Assets, Additions: developments	4,280,000	549,000	0
Real Estate Assets, Write-offs	-167,174,000	0	0
Real Estate Assets, Balance, end of period	7,157,603,000	7,012,733,000	6,786,537,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, beginning of period	-1,495,819,000	-1,304,468,000	-1,119,619,000
Accumulated Depreciation, Additions: depreciation	-202,512,000	-191,351,000	-184,849,000
Accumulated Depreciation, Write-offs	167,174,000	0	0
Accumulated Depreciation, Balance, end of period	-1,531,157,000	-1,495,819,000	-1,304,468,000
100 Wilshire [Member]
Encumbrances at December 31, 2014	139,199,000
Initial Cost of Land	12,769,000
Initial Cost of Buildings & Improvements	78,447,000
Costs Capitalized Subsequent to Acquisition, Improvements	139,026,000
Gross Carrying Amount of Land	27,108,000
Gross Carrying Amount of Buildings & Improvements	203,134,000
Gross Carrying Amount of Land and Buildings & Improvements	230,242,000
Accumulated Depreciation at December 31, 2014	-50,341,000
Year Built	1-Jan-68
Year Renovated	1-Jan-02
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	230,242,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-50,341,000
11777 San Vicente [Member]
Encumbrances at December 31, 2014	25,931,000
Initial Cost of Land	5,032,000
Initial Cost of Buildings & Improvements	15,768,000
Costs Capitalized Subsequent to Acquisition, Improvements	29,614,000
Gross Carrying Amount of Land	6,714,000
Gross Carrying Amount of Buildings & Improvements	43,700,000
Gross Carrying Amount of Land and Buildings & Improvements	50,414,000
Accumulated Depreciation at December 31, 2014	-10,434,000
Year Built	1-Jan-74
Year Renovated	1-Jan-98
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	50,414,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-10,434,000
12400 Wilshire [Member]
Encumbrances at December 31, 2014	61,436,000
Initial Cost of Land	5,013,000
Initial Cost of Buildings & Improvements	34,283,000
Costs Capitalized Subsequent to Acquisition, Improvements	75,233,000
Gross Carrying Amount of Land	8,828,000
Gross Carrying Amount of Buildings & Improvements	105,701,000
Gross Carrying Amount of Land and Buildings & Improvements	114,529,000
Accumulated Depreciation at December 31, 2014	-26,048,000
Year Built	1-Jan-85
Year Acquired	1-Jan-96
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	114,529,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-26,048,000
16501 Ventura [Member]
Encumbrances at December 31, 2014	0
Initial Cost of Land	6,759,000
Initial Cost of Buildings & Improvements	53,112,000
Costs Capitalized Subsequent to Acquisition, Improvements	7,715,000
Gross Carrying Amount of Land	6,759,000
Gross Carrying Amount of Buildings & Improvements	60,827,000
Gross Carrying Amount of Land and Buildings & Improvements	67,586,000
Accumulated Depreciation at December 31, 2014	-3,314,000
Year Built	1-Jan-86
Year Renovated	1-Jan-12
Year Acquired	1-Jan-13
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	67,586,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-3,314,000
1901 Avenue Of Stars [Member]
Encumbrances at December 31, 2014	155,000,000
Initial Cost of Land	18,514,000
Initial Cost of Buildings & Improvements	131,752,000
Costs Capitalized Subsequent to Acquisition, Improvements	111,562,000
Gross Carrying Amount of Land	26,163,000
Gross Carrying Amount of Buildings & Improvements	235,665,000
Gross Carrying Amount of Land and Buildings & Improvements	261,828,000
Accumulated Depreciation at December 31, 2014	-60,316,000
Year Built	1-Jan-68
Year Renovated	1-Jan-01
Year Acquired	1-Jan-01
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	261,828,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-60,316,000
401 Wilshire [Member]
Encumbrances at December 31, 2014	79,787,000
Initial Cost of Land	9,989,000
Initial Cost of Buildings & Improvements	29,187,000
Costs Capitalized Subsequent to Acquisition, Improvements	115,305,000
Gross Carrying Amount of Land	21,787,000
Gross Carrying Amount of Buildings & Improvements	132,694,000
Gross Carrying Amount of Land and Buildings & Improvements	154,481,000
Accumulated Depreciation at December 31, 2014	-33,816,000
Year Built	1-Jan-81
Year Renovated	1-Jan-00
Year Acquired	1-Jan-96
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	154,481,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-33,816,000
8484 Wilshire [Member]
Encumbrances at December 31, 2014	32,209,000
Initial Cost of Land	8,846,000
Initial Cost of Buildings & Improvements	77,780,000
Costs Capitalized Subsequent to Acquisition, Improvements	13,838,000
Gross Carrying Amount of Land	8,846,000
Gross Carrying Amount of Buildings & Improvements	91,619,000
Gross Carrying Amount of Land and Buildings & Improvements	100,465,000
Accumulated Depreciation at December 31, 2014	-4,588,000
Year Built	1-Jan-72
Year Renovated	1-Jan-13
Year Acquired	1-Jan-13
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	100,465,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-4,588,000
9601 Wilshire [Member]
Encumbrances at December 31, 2014	112,144,000
Initial Cost of Land	16,597,000
Initial Cost of Buildings & Improvements	54,774,000
Costs Capitalized Subsequent to Acquisition, Improvements	110,371,000
Gross Carrying Amount of Land	17,658,000
Gross Carrying Amount of Buildings & Improvements	164,084,000
Gross Carrying Amount of Land and Buildings & Improvements	181,742,000
Accumulated Depreciation at December 31, 2014	-41,612,000
Year Built	1-Jan-62
Year Renovated	1-Jan-04
Year Acquired	1-Jan-01
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	181,742,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-41,612,000
Beverly Hills Medical Center [Member]
Encumbrances at December 31, 2014	31,469,000
Initial Cost of Land	4,955,000
Initial Cost of Buildings & Improvements	27,766,000
Costs Capitalized Subsequent to Acquisition, Improvements	28,218,000
Gross Carrying Amount of Land	6,435,000
Gross Carrying Amount of Buildings & Improvements	54,504,000
Gross Carrying Amount of Land and Buildings & Improvements	60,939,000
Accumulated Depreciation at December 31, 2014	-14,058,000
Year Built	1-Jan-64
Year Renovated	1-Jan-04
Year Acquired	1-Jan-04
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	60,939,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-14,058,000
Bishop Place [Member]
Encumbrances at December 31, 2014	73,813,000
Initial Cost of Land	8,317,000
Initial Cost of Buildings & Improvements	105,651,000
Costs Capitalized Subsequent to Acquisition, Improvements	59,385,000
Gross Carrying Amount of Land	8,833,000
Gross Carrying Amount of Buildings & Improvements	164,520,000
Gross Carrying Amount of Land and Buildings & Improvements	173,353,000
Accumulated Depreciation at December 31, 2014	-44,204,000
Year Built	1-Jan-92
Year Acquired	1-Jan-04
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	173,353,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-44,204,000
Bishop Square [Member]
Encumbrances at December 31, 2014	139,131,000
Initial Cost of Land	16,273,000
Initial Cost of Buildings & Improvements	213,793,000
Costs Capitalized Subsequent to Acquisition, Improvements	20,495,000
Gross Carrying Amount of Land	16,273,000
Gross Carrying Amount of Buildings & Improvements	234,288,000
Gross Carrying Amount of Land and Buildings & Improvements	250,561,000
Accumulated Depreciation at December 31, 2014	-39,269,000
Year Built	1-Jan-72
Year Renovated	1-Jan-83
Year Acquired	1-Jan-10
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	250,561,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-39,269,000
Brentwood Court [Member]
Encumbrances at December 31, 2014	6,318,000
Initial Cost of Land	2,564,000
Initial Cost of Buildings & Improvements	8,872,000
Costs Capitalized Subsequent to Acquisition, Improvements	291,000
Gross Carrying Amount of Land	2,563,000
Gross Carrying Amount of Buildings & Improvements	9,164,000
Gross Carrying Amount of Land and Buildings & Improvements	11,727,000
Accumulated Depreciation at December 31, 2014	-2,491,000
Year Built	1-Jan-84
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	11,727,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-2,491,000
Brentwood Executive Plaza [Member]
Encumbrances at December 31, 2014	25,461,000
Initial Cost of Land	3,255,000
Initial Cost of Buildings & Improvements	9,654,000
Costs Capitalized Subsequent to Acquisition, Improvements	33,511,000
Gross Carrying Amount of Land	5,921,000
Gross Carrying Amount of Buildings & Improvements	40,499,000
Gross Carrying Amount of Land and Buildings & Improvements	46,420,000
Accumulated Depreciation at December 31, 2014	-10,826,000
Year Built	1-Jan-83
Year Renovated	1-Jan-96
Year Acquired	1-Jan-95
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	46,420,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-10,826,000
Brentwood Medical Plaza [Member]
Encumbrances at December 31, 2014	25,805,000
Initial Cost of Land	5,934,000
Initial Cost of Buildings & Improvements	27,836,000
Costs Capitalized Subsequent to Acquisition, Improvements	2,103,000
Gross Carrying Amount of Land	5,933,000
Gross Carrying Amount of Buildings & Improvements	29,940,000
Gross Carrying Amount of Land and Buildings & Improvements	35,873,000
Accumulated Depreciation at December 31, 2014	-8,106,000
Year Built	1-Jan-75
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	35,873,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-8,106,000
Brentwood San Vicente Medical [Member]
Encumbrances at December 31, 2014	13,297,000
Initial Cost of Land	5,557,000
Initial Cost of Buildings & Improvements	16,457,000
Costs Capitalized Subsequent to Acquisition, Improvements	1,020,000
Gross Carrying Amount of Land	5,557,000
Gross Carrying Amount of Buildings & Improvements	17,477,000
Gross Carrying Amount of Land and Buildings & Improvements	23,034,000
Accumulated Depreciation at December 31, 2014	-4,587,000
Year Built	1-Jan-57
Year Renovated	1-Jan-85
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	23,034,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-4,587,000
Brentwood Saltair [Member]
Encumbrances at December 31, 2014	13,065,000
Initial Cost of Land	4,468,000
Initial Cost of Buildings & Improvements	11,615,000
Costs Capitalized Subsequent to Acquisition, Improvements	11,712,000
Gross Carrying Amount of Land	4,775,000
Gross Carrying Amount of Buildings & Improvements	23,020,000
Gross Carrying Amount of Land and Buildings & Improvements	27,795,000
Accumulated Depreciation at December 31, 2014	-6,133,000
Year Built	1-Jan-86
Year Acquired	1-Jan-00
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	27,795,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-6,133,000
Bundy Olympic [Member]
Encumbrances at December 31, 2014	24,056,000
Initial Cost of Land	4,201,000
Initial Cost of Buildings & Improvements	11,860,000
Costs Capitalized Subsequent to Acquisition, Improvements	29,180,000
Gross Carrying Amount of Land	6,030,000
Gross Carrying Amount of Buildings & Improvements	39,211,000
Gross Carrying Amount of Land and Buildings & Improvements	45,241,000
Accumulated Depreciation at December 31, 2014	-10,122,000
Year Built	1-Jan-91
Year Renovated	1-Jan-98
Year Acquired	1-Jan-94
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	45,241,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-10,122,000
Camden Medical Arts [Member]
Encumbrances at December 31, 2014	28,606,000
Initial Cost of Land	3,102,000
Initial Cost of Buildings & Improvements	12,221,000
Costs Capitalized Subsequent to Acquisition, Improvements	27,813,000
Gross Carrying Amount of Land	5,298,000
Gross Carrying Amount of Buildings & Improvements	37,838,000
Gross Carrying Amount of Land and Buildings & Improvements	43,136,000
Accumulated Depreciation at December 31, 2014	-9,461,000
Year Built	1-Jan-72
Year Renovated	1-Jan-92
Year Acquired	1-Jan-95
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	43,136,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-9,461,000
Carthay Campus [Member]
Encumbrances at December 31, 2014	0
Initial Cost of Land	6,595,000
Initial Cost of Buildings & Improvements	70,454,000
Costs Capitalized Subsequent to Acquisition, Improvements	131,000
Gross Carrying Amount of Land	6,595,000
Gross Carrying Amount of Buildings & Improvements	70,585,000
Gross Carrying Amount of Land and Buildings & Improvements	77,180,000
Accumulated Depreciation at December 31, 2014	-486,000
Year Built	1-Jan-65
Year Renovated	1-Jan-09
Year Acquired	1-Jan-14
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	77,180,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-486,000
Century Park Plaza [Member]
Encumbrances at December 31, 2014	85,010,000
Initial Cost of Land	10,275,000
Initial Cost of Buildings & Improvements	70,761,000
Costs Capitalized Subsequent to Acquisition, Improvements	104,974,000
Gross Carrying Amount of Land	16,153,000
Gross Carrying Amount of Buildings & Improvements	169,857,000
Gross Carrying Amount of Land and Buildings & Improvements	186,010,000
Accumulated Depreciation at December 31, 2014	-42,650,000
Year Built	1-Jan-72
Year Renovated	1-Jan-87
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	186,010,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-42,650,000
Century Park West [Member]
Encumbrances at December 31, 2014	11,989,000
Initial Cost of Land	3,717,000
Initial Cost of Buildings & Improvements	29,099,000
Costs Capitalized Subsequent to Acquisition, Improvements	528,000
Gross Carrying Amount of Land	3,667,000
Gross Carrying Amount of Buildings & Improvements	29,677,000
Gross Carrying Amount of Land and Buildings & Improvements	33,344,000
Accumulated Depreciation at December 31, 2014	-7,492,000
Year Built	1-Jan-71
Year Acquired	1-Jan-07
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	33,344,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-7,492,000
Columbus Center [Member]
Encumbrances at December 31, 2014	10,559,000
Initial Cost of Land	2,096,000
Initial Cost of Buildings & Improvements	10,396,000
Costs Capitalized Subsequent to Acquisition, Improvements	9,610,000
Gross Carrying Amount of Land	2,333,000
Gross Carrying Amount of Buildings & Improvements	19,769,000
Gross Carrying Amount of Land and Buildings & Improvements	22,102,000
Accumulated Depreciation at December 31, 2014	-5,249,000
Year Built	1-Jan-87
Year Acquired	1-Jan-01
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	22,102,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-5,249,000
Coral Plaza [Member]
Encumbrances at December 31, 2014	23,327,000
Initial Cost of Land	4,028,000
Initial Cost of Buildings & Improvements	15,019,000
Costs Capitalized Subsequent to Acquisition, Improvements	18,899,000
Gross Carrying Amount of Land	5,366,000
Gross Carrying Amount of Buildings & Improvements	32,580,000
Gross Carrying Amount of Land and Buildings & Improvements	37,946,000
Accumulated Depreciation at December 31, 2014	-8,473,000
Year Built	1-Jan-81
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	37,946,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-8,473,000
Cornerstone Plaza [Member]
Encumbrances at December 31, 2014	24,085,000
Initial Cost of Land	8,245,000
Initial Cost of Buildings & Improvements	80,633,000
Costs Capitalized Subsequent to Acquisition, Improvements	4,729,000
Gross Carrying Amount of Land	8,263,000
Gross Carrying Amount of Buildings & Improvements	85,344,000
Gross Carrying Amount of Land and Buildings & Improvements	93,607,000
Accumulated Depreciation at December 31, 2014	-19,210,000
Year Built	1-Jan-86
Year Acquired	1-Jan-07
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	93,607,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-19,210,000
Encino Gateway [Member]
Encumbrances at December 31, 2014	51,463,000
Initial Cost of Land	8,475,000
Initial Cost of Buildings & Improvements	48,525,000
Costs Capitalized Subsequent to Acquisition, Improvements	53,012,000
Gross Carrying Amount of Land	15,653,000
Gross Carrying Amount of Buildings & Improvements	94,359,000
Gross Carrying Amount of Land and Buildings & Improvements	110,012,000
Accumulated Depreciation at December 31, 2014	-25,523,000
Year Built	1-Jan-74
Year Renovated	1-Jan-98
Year Acquired	1-Jan-00
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	110,012,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-25,523,000
Encino Plaza [Member]
Encumbrances at December 31, 2014	30,011,000
Initial Cost of Land	5,293,000
Initial Cost of Buildings & Improvements	23,125,000
Costs Capitalized Subsequent to Acquisition, Improvements	46,267,000
Gross Carrying Amount of Land	6,165,000
Gross Carrying Amount of Buildings & Improvements	68,520,000
Gross Carrying Amount of Land and Buildings & Improvements	74,685,000
Accumulated Depreciation at December 31, 2014	-19,106,000
Year Built	1-Jan-71
Year Renovated	1-Jan-92
Year Acquired	1-Jan-00
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	74,685,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-19,106,000
Encino Terrace [Member]
Encumbrances at December 31, 2014	67,307,000
Initial Cost of Land	12,535,000
Initial Cost of Buildings & Improvements	59,554,000
Costs Capitalized Subsequent to Acquisition, Improvements	94,319,000
Gross Carrying Amount of Land	15,533,000
Gross Carrying Amount of Buildings & Improvements	150,875,000
Gross Carrying Amount of Land and Buildings & Improvements	166,408,000
Accumulated Depreciation at December 31, 2014	-40,360,000
Year Built	1-Jan-86
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	166,408,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-40,360,000
Executive Tower [Member]
Encumbrances at December 31, 2014	33,909,000
Initial Cost of Land	6,660,000
Initial Cost of Buildings & Improvements	32,045,000
Costs Capitalized Subsequent to Acquisition, Improvements	60,291,000
Gross Carrying Amount of Land	9,471,000
Gross Carrying Amount of Buildings & Improvements	89,525,000
Gross Carrying Amount of Land and Buildings & Improvements	98,996,000
Accumulated Depreciation at December 31, 2014	-23,327,000
Year Built	1-Jan-89
Year Acquired	1-Jan-95
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	98,996,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-23,327,000
Gateway Los Angeles [Member]
Encumbrances at December 31, 2014	28,429,000
Initial Cost of Land	2,376,000
Initial Cost of Buildings & Improvements	15,302,000
Costs Capitalized Subsequent to Acquisition, Improvements	48,370,000
Gross Carrying Amount of Land	5,119,000
Gross Carrying Amount of Buildings & Improvements	60,929,000
Gross Carrying Amount of Land and Buildings & Improvements	66,048,000
Accumulated Depreciation at December 31, 2014	-15,708,000
Year Built	1-Jan-87
Year Acquired	1-Jan-94
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	66,048,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-15,708,000
Harbor Court [Member]
Encumbrances at December 31, 2014	0
Initial Cost of Land	51,000
Initial Cost of Buildings & Improvements	41,001,000
Costs Capitalized Subsequent to Acquisition, Improvements	21,332,000
Gross Carrying Amount of Land	0
Gross Carrying Amount of Buildings & Improvements	62,384,000
Gross Carrying Amount of Land and Buildings & Improvements	62,384,000
Accumulated Depreciation at December 31, 2014	-17,811,000
Year Built	1-Jan-94
Year Acquired	1-Jan-04
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	62,384,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-17,811,000
Honolulu Club [Member]
Encumbrances at December 31, 2014	16,140,000
Initial Cost of Land	1,863,000
Initial Cost of Buildings & Improvements	16,766,000
Costs Capitalized Subsequent to Acquisition, Improvements	6,731,000
Gross Carrying Amount of Land	1,863,000
Gross Carrying Amount of Buildings & Improvements	23,497,000
Gross Carrying Amount of Land and Buildings & Improvements	25,360,000
Accumulated Depreciation at December 31, 2014	-5,578,000
Year Built	1-Jan-80
Year Acquired	1-Jan-08
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	25,360,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-5,578,000
Landmark Two [Member]
Encumbrances at December 31, 2014	118,684,000
Initial Cost of Land	19,156,000
Initial Cost of Buildings & Improvements	109,259,000
Costs Capitalized Subsequent to Acquisition, Improvements	79,641,000
Gross Carrying Amount of Land	26,139,000
Gross Carrying Amount of Buildings & Improvements	181,917,000
Gross Carrying Amount of Land and Buildings & Improvements	208,056,000
Accumulated Depreciation at December 31, 2014	-56,866,000
Year Built	1-Jan-89
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	208,056,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-56,866,000
Lincoln Wilshire [Member]
Encumbrances at December 31, 2014	24,895,000
Initial Cost of Land	3,833,000
Initial Cost of Buildings & Improvements	12,484,000
Costs Capitalized Subsequent to Acquisition, Improvements	22,879,000
Gross Carrying Amount of Land	7,475,000
Gross Carrying Amount of Buildings & Improvements	31,721,000
Gross Carrying Amount of Land and Buildings & Improvements	39,196,000
Accumulated Depreciation at December 31, 2014	-7,802,000
Year Built	1-Jan-96
Year Acquired	1-Jan-00
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	39,196,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-7,802,000
Mb Plaza [Member]
Encumbrances at December 31, 2014	28,091,000
Initial Cost of Land	4,533,000
Initial Cost of Buildings & Improvements	22,024,000
Costs Capitalized Subsequent to Acquisition, Improvements	30,582,000
Gross Carrying Amount of Land	7,503,000
Gross Carrying Amount of Buildings & Improvements	49,636,000
Gross Carrying Amount of Land and Buildings & Improvements	57,139,000
Accumulated Depreciation at December 31, 2014	-14,314,000
Year Built	1-Jan-71
Year Renovated	1-Jan-96
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	57,139,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-14,314,000
Olympic Center [Member]
Encumbrances at December 31, 2014	27,968,000
Initial Cost of Land	5,473,000
Initial Cost of Buildings & Improvements	22,850,000
Costs Capitalized Subsequent to Acquisition, Improvements	31,899,000
Gross Carrying Amount of Land	8,247,000
Gross Carrying Amount of Buildings & Improvements	51,975,000
Gross Carrying Amount of Land and Buildings & Improvements	60,222,000
Accumulated Depreciation at December 31, 2014	-13,879,000
Year Built	1-Jan-85
Year Renovated	1-Jan-96
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	60,222,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-13,879,000
One Westwood [Member]
Encumbrances at December 31, 2014	45,577,000
Initial Cost of Land	10,350,000
Initial Cost of Buildings & Improvements	29,784,000
Costs Capitalized Subsequent to Acquisition, Improvements	59,738,000
Gross Carrying Amount of Land	9,194,000
Gross Carrying Amount of Buildings & Improvements	90,678,000
Gross Carrying Amount of Land and Buildings & Improvements	99,872,000
Accumulated Depreciation at December 31, 2014	-23,751,000
Year Built	1-Jan-87
Year Renovated	1-Jan-04
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	99,872,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-23,751,000
Palisades Promenade [Member]
Encumbrances at December 31, 2014	35,904,000
Initial Cost of Land	5,253,000
Initial Cost of Buildings & Improvements	15,547,000
Costs Capitalized Subsequent to Acquisition, Improvements	51,903,000
Gross Carrying Amount of Land	9,664,000
Gross Carrying Amount of Buildings & Improvements	63,039,000
Gross Carrying Amount of Land and Buildings & Improvements	72,703,000
Accumulated Depreciation at December 31, 2014	-16,207,000
Year Built	1-Jan-90
Year Acquired	1-Jan-95
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	72,703,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-16,207,000
Saltair San Vicente [Member]
Encumbrances at December 31, 2014	15,472,000
Initial Cost of Land	5,075,000
Initial Cost of Buildings & Improvements	6,946,000
Costs Capitalized Subsequent to Acquisition, Improvements	16,920,000
Gross Carrying Amount of Land	7,557,000
Gross Carrying Amount of Buildings & Improvements	21,384,000
Gross Carrying Amount of Land and Buildings & Improvements	28,941,000
Accumulated Depreciation at December 31, 2014	-5,738,000
Year Built	1-Jan-64
Year Renovated	1-Jan-92
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	28,941,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-5,738,000
San Vicente Plaza [Member]
Encumbrances at December 31, 2014	9,430,000
Initial Cost of Land	7,055,000
Initial Cost of Buildings & Improvements	12,035,000
Costs Capitalized Subsequent to Acquisition, Improvements	404,000
Gross Carrying Amount of Land	7,055,000
Gross Carrying Amount of Buildings & Improvements	12,439,000
Gross Carrying Amount of Land and Buildings & Improvements	19,494,000
Accumulated Depreciation at December 31, 2014	-3,720,000
Year Built	1-Jan-85
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	19,494,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-3,720,000
Santa Monica Square [Member]
Encumbrances at December 31, 2014	25,487,000
Initial Cost of Land	5,366,000
Initial Cost of Buildings & Improvements	18,025,000
Costs Capitalized Subsequent to Acquisition, Improvements	20,241,000
Gross Carrying Amount of Land	6,863,000
Gross Carrying Amount of Buildings & Improvements	36,769,000
Gross Carrying Amount of Land and Buildings & Improvements	43,632,000
Accumulated Depreciation at December 31, 2014	-9,723,000
Year Built	1-Jan-83
Year Renovated	1-Jan-04
Year Acquired	1-Jan-01
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	43,632,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-9,723,000
Second Street Plaza [Member]
Encumbrances at December 31, 2014	35,802,000
Initial Cost of Land	4,377,000
Initial Cost of Buildings & Improvements	15,277,000
Costs Capitalized Subsequent to Acquisition, Improvements	35,296,000
Gross Carrying Amount of Land	7,421,000
Gross Carrying Amount of Buildings & Improvements	47,529,000
Gross Carrying Amount of Land and Buildings & Improvements	54,950,000
Accumulated Depreciation at December 31, 2014	-12,979,000
Year Built	1-Jan-91
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	54,950,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-12,979,000
Sherman Oaks Galleria [Member]
Encumbrances at December 31, 2014	264,297,000
Initial Cost of Land	33,213,000
Initial Cost of Buildings & Improvements	17,820,000
Costs Capitalized Subsequent to Acquisition, Improvements	409,279,000
Gross Carrying Amount of Land	48,328,000
Gross Carrying Amount of Buildings & Improvements	411,984,000
Gross Carrying Amount of Land and Buildings & Improvements	460,312,000
Accumulated Depreciation at December 31, 2014	-114,233,000
Year Built	1-Jan-81
Year Renovated	1-Jan-02
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	460,312,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-114,233,000
Studio Plaza [Member]
Encumbrances at December 31, 2014	115,591,000
Initial Cost of Land	9,347,000
Initial Cost of Buildings & Improvements	73,358,000
Costs Capitalized Subsequent to Acquisition, Improvements	129,449,000
Gross Carrying Amount of Land	15,015,000
Gross Carrying Amount of Buildings & Improvements	197,139,000
Gross Carrying Amount of Land and Buildings & Improvements	212,154,000
Accumulated Depreciation at December 31, 2014	-55,486,000
Year Built	1-Jan-88
Year Renovated	1-Jan-04
Year Acquired	1-Jan-95
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	212,154,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-55,486,000
Trillium [Member]
Encumbrances at December 31, 2014	67,283,000
Initial Cost of Land	20,688,000
Initial Cost of Buildings & Improvements	143,263,000
Costs Capitalized Subsequent to Acquisition, Improvements	82,897,000
Gross Carrying Amount of Land	21,989,000
Gross Carrying Amount of Buildings & Improvements	224,859,000
Gross Carrying Amount of Land and Buildings & Improvements	246,848,000
Accumulated Depreciation at December 31, 2014	-58,705,000
Year Built	1-Jan-88
Year Acquired	1-Jan-05
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	246,848,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-58,705,000
Tower At Sherman Oaks [Member]
Encumbrances at December 31, 2014	20,000,000
Initial Cost of Land	4,712,000
Initial Cost of Buildings & Improvements	15,747,000
Costs Capitalized Subsequent to Acquisition, Improvements	37,584,000
Gross Carrying Amount of Land	8,685,000
Gross Carrying Amount of Buildings & Improvements	49,358,000
Gross Carrying Amount of Land and Buildings & Improvements	58,043,000
Accumulated Depreciation at December 31, 2014	-13,740,000
Year Built	1-Jan-67
Year Renovated	1-Jan-91
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	58,043,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-13,740,000
Valley Executive Tower [Member]
Encumbrances at December 31, 2014	86,055,000
Initial Cost of Land	8,446,000
Initial Cost of Buildings & Improvements	67,672,000
Costs Capitalized Subsequent to Acquisition, Improvements	100,068,000
Gross Carrying Amount of Land	11,737,000
Gross Carrying Amount of Buildings & Improvements	164,449,000
Gross Carrying Amount of Land and Buildings & Improvements	176,186,000
Accumulated Depreciation at December 31, 2014	-43,120,000
Year Built	1-Jan-84
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	176,186,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-43,120,000
Valley Office Plaza [Member]
Encumbrances at December 31, 2014	35,037,000
Initial Cost of Land	5,731,000
Initial Cost of Buildings & Improvements	24,329,000
Costs Capitalized Subsequent to Acquisition, Improvements	46,978,000
Gross Carrying Amount of Land	8,957,000
Gross Carrying Amount of Buildings & Improvements	68,081,000
Gross Carrying Amount of Land and Buildings & Improvements	77,038,000
Accumulated Depreciation at December 31, 2014	-18,643,000
Year Built	1-Jan-66
Year Renovated	1-Jan-02
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	77,038,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-18,643,000
Verona [Member]
Encumbrances at December 31, 2014	14,262,000
Initial Cost of Land	2,574,000
Initial Cost of Buildings & Improvements	7,111,000
Costs Capitalized Subsequent to Acquisition, Improvements	13,968,000
Gross Carrying Amount of Land	5,111,000
Gross Carrying Amount of Buildings & Improvements	18,542,000
Gross Carrying Amount of Land and Buildings & Improvements	23,653,000
Accumulated Depreciation at December 31, 2014	-4,931,000
Year Built	1-Jan-91
Year Acquired	1-Jan-97
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	23,653,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-4,931,000
Village On Canon [Member]
Encumbrances at December 31, 2014	33,583,000
Initial Cost of Land	5,933,000
Initial Cost of Buildings & Improvements	11,389,000
Costs Capitalized Subsequent to Acquisition, Improvements	48,622,000
Gross Carrying Amount of Land	13,303,000
Gross Carrying Amount of Buildings & Improvements	52,641,000
Gross Carrying Amount of Land and Buildings & Improvements	65,944,000
Accumulated Depreciation at December 31, 2014	-13,039,000
Year Built	1-Jan-89
Year Renovated	1-Jan-95
Year Acquired	1-Jan-94
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	65,944,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-13,039,000
Warner Center Towers [Member]
Encumbrances at December 31, 2014	285,000,000
Initial Cost of Land	43,110,000
Initial Cost of Buildings & Improvements	292,147,000
Costs Capitalized Subsequent to Acquisition, Improvements	393,398,000
Gross Carrying Amount of Land	59,418,000
Gross Carrying Amount of Buildings & Improvements	669,237,000
Gross Carrying Amount of Land and Buildings & Improvements	728,655,000
Accumulated Depreciation at December 31, 2014	-175,984,000
Year Renovated	1-Jan-04
Year Acquired	1-Jan-02
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	728,655,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-175,984,000
Westside Towers [Member]
Encumbrances at December 31, 2014	80,216,000
Initial Cost of Land	8,506,000
Initial Cost of Buildings & Improvements	79,532,000
Costs Capitalized Subsequent to Acquisition, Improvements	77,913,000
Gross Carrying Amount of Land	14,568,000
Gross Carrying Amount of Buildings & Improvements	151,383,000
Gross Carrying Amount of Land and Buildings & Improvements	165,951,000
Accumulated Depreciation at December 31, 2014	-39,016,000
Year Built	1-Jan-85
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	165,951,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-39,016,000
Westwood Place [Member]
Encumbrances at December 31, 2014	52,094,000
Initial Cost of Land	8,542,000
Initial Cost of Buildings & Improvements	44,419,000
Costs Capitalized Subsequent to Acquisition, Improvements	51,895,000
Gross Carrying Amount of Land	11,448,000
Gross Carrying Amount of Buildings & Improvements	93,408,000
Gross Carrying Amount of Land and Buildings & Improvements	104,856,000
Accumulated Depreciation at December 31, 2014	-23,753,000
Year Built	1-Jan-87
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	104,856,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-23,753,000
Five Hundred Fifty Five Barrington [Member]
Encumbrances at December 31, 2014	43,440,000
Initial Cost of Land	6,461,000
Initial Cost of Buildings & Improvements	27,639,000
Costs Capitalized Subsequent to Acquisition, Improvements	40,392,000
Gross Carrying Amount of Land	14,903,000
Gross Carrying Amount of Buildings & Improvements	59,589,000
Gross Carrying Amount of Land and Buildings & Improvements	74,492,000
Accumulated Depreciation at December 31, 2014	-14,641,000
Year Built	1-Jan-89
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	74,492,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-14,641,000
Barrington Plaza [Member]
Encumbrances at December 31, 2014	153,630,000
Initial Cost of Land	28,568,000
Initial Cost of Buildings & Improvements	81,485,000
Costs Capitalized Subsequent to Acquisition, Improvements	152,529,000
Gross Carrying Amount of Land	58,208,000
Gross Carrying Amount of Buildings & Improvements	204,374,000
Gross Carrying Amount of Land and Buildings & Improvements	262,582,000
Accumulated Depreciation at December 31, 2014	-48,912,000
Year Built	1-Jan-63
Year Renovated	1-Jan-98
Year Acquired	1-Jan-98
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	262,582,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-48,912,000
Barrington Kiowa [Member]
Encumbrances at December 31, 2014	7,750,000
Initial Cost of Land	5,720,000
Initial Cost of Buildings & Improvements	10,052,000
Costs Capitalized Subsequent to Acquisition, Improvements	526,000
Gross Carrying Amount of Land	5,720,000
Gross Carrying Amount of Buildings & Improvements	10,578,000
Gross Carrying Amount of Land and Buildings & Improvements	16,298,000
Accumulated Depreciation at December 31, 2014	-2,616,000
Year Built	1-Jan-74
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	16,298,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-2,616,000
Barry [Member]
Encumbrances at December 31, 2014	7,150,000
Initial Cost of Land	6,426,000
Initial Cost of Buildings & Improvements	8,179,000
Costs Capitalized Subsequent to Acquisition, Improvements	481,000
Gross Carrying Amount of Land	6,426,000
Gross Carrying Amount of Buildings & Improvements	8,660,000
Gross Carrying Amount of Land and Buildings & Improvements	15,086,000
Accumulated Depreciation at December 31, 2014	-2,264,000
Year Built	1-Jan-73
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	15,086,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-2,264,000
Kiowa [Member]
Encumbrances at December 31, 2014	3,100,000
Initial Cost of Land	2,605,000
Initial Cost of Buildings & Improvements	3,263,000
Costs Capitalized Subsequent to Acquisition, Improvements	262,000
Gross Carrying Amount of Land	2,605,000
Gross Carrying Amount of Buildings & Improvements	3,525,000
Gross Carrying Amount of Land and Buildings & Improvements	6,130,000
Accumulated Depreciation at December 31, 2014	-907,000
Year Built	1-Jan-72
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	6,130,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-907,000
Landmark II Development [Member] [Member]
Encumbrances at December 31, 2014	0
Initial Cost of Land	0
Initial Cost of Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition, Improvements	1,162,000
Gross Carrying Amount of Land	0
Gross Carrying Amount of Buildings & Improvements	1,162,000
Gross Carrying Amount of Land and Buildings & Improvements	1,162,000
Accumulated Depreciation at December 31, 2014	0
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	1,162,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	0
Moanalua Hillside [Member]
Encumbrances at December 31, 2014	145,000,000
Initial Cost of Land	24,720,000
Initial Cost of Buildings & Improvements	85,895,000
Costs Capitalized Subsequent to Acquisition, Improvements	42,309,000
Gross Carrying Amount of Land	35,365,000
Gross Carrying Amount of Buildings & Improvements	117,559,000
Gross Carrying Amount of Land and Buildings & Improvements	152,924,000
Accumulated Depreciation at December 31, 2014	-27,649,000
Year Built	1-Jan-68
Year Renovated	1-Jan-04
Year Acquired	1-Jan-05
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	152,924,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-27,649,000
Pacific Plaza [Member]
Encumbrances at December 31, 2014	46,400,000
Initial Cost of Land	10,091,000
Initial Cost of Buildings & Improvements	16,159,000
Costs Capitalized Subsequent to Acquisition, Improvements	74,205,000
Gross Carrying Amount of Land	27,816,000
Gross Carrying Amount of Buildings & Improvements	72,639,000
Gross Carrying Amount of Land and Buildings & Improvements	100,455,000
Accumulated Depreciation at December 31, 2014	-17,217,000
Year Built	1-Jan-63
Year Renovated	1-Jan-98
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	100,455,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-17,217,000
Shores [Member]
Encumbrances at December 31, 2014	144,610,000
Initial Cost of Land	20,809,000
Initial Cost of Buildings & Improvements	74,191,000
Costs Capitalized Subsequent to Acquisition, Improvements	197,659,000
Gross Carrying Amount of Land	60,555,000
Gross Carrying Amount of Buildings & Improvements	232,104,000
Gross Carrying Amount of Land and Buildings & Improvements	292,659,000
Accumulated Depreciation at December 31, 2014	-54,582,000
Year Renovated	1-Jan-02
Year Acquired	1-Jan-99
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	292,659,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-54,582,000
Villas At Royal Kunia [Member]
Encumbrances at December 31, 2014	82,000,000
Initial Cost of Land	42,887,000
Initial Cost of Buildings & Improvements	71,376,000
Costs Capitalized Subsequent to Acquisition, Improvements	14,274,000
Gross Carrying Amount of Land	35,164,000
Gross Carrying Amount of Buildings & Improvements	93,373,000
Gross Carrying Amount of Land and Buildings & Improvements	128,537,000
Accumulated Depreciation at December 31, 2014	-26,041,000
Year Built	1-Jan-90
Year Renovated	1-Jan-95
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	128,537,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	-26,041,000
Waena [Member]
Encumbrances at December 31, 2014	0
Initial Cost of Land	26,864,000
Initial Cost of Buildings & Improvements	119,273,000
Costs Capitalized Subsequent to Acquisition, Improvements	0
Gross Carrying Amount of Land	26,864,000
Gross Carrying Amount of Buildings & Improvements	119,273,000
Gross Carrying Amount of Land and Buildings & Improvements	146,137,000
Accumulated Depreciation at December 31, 2014	0
Year Built	1-Jan-70
Year Acquired	1-Jan-14
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	146,137,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	0
Owensmouth Warner [Member]
Encumbrances at December 31, 2014	12,526,000
Initial Cost of Land	23,848,000
Initial Cost of Buildings & Improvements	0
Costs Capitalized Subsequent to Acquisition, Improvements	0
Gross Carrying Amount of Land	23,848,000
Gross Carrying Amount of Buildings & Improvements	0
Gross Carrying Amount of Land and Buildings & Improvements	23,848,000
Accumulated Depreciation at December 31, 2014	0
Year Acquired	1-Jan-06
SEC Schedule III, Reconciliation of Real Estate Carrying Amount [Roll Forward]
Real Estate Assets, Balance, end of period	23,848,000
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Accumulated Depreciation, Balance, end of period	$0
Minimum [Member] | Warner Center Towers [Member]
Year Built	1-Jan-82
Minimum [Member] | Landmark II Development [Member] [Member]
Year Built	1-Jan-13
Minimum [Member] | Shores [Member]
Year Built	1-Jan-65
Minimum [Member] | Waena [Member]
Year Renovated	1-Jan-09
Maximum [Member] | Warner Center Towers [Member]
Year Built	1-Jan-93
Maximum [Member] | Landmark II Development [Member] [Member]
Year Built	1-Jan-14
Maximum [Member] | Shores [Member]
Year Built	1-Jan-67
Maximum [Member] | Waena [Member]
Year Renovated	1-Jan-14