Hudson Pacific Properties 10-K 16 Feb 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Feb. 09, 2018	Jun. 30, 2017
Entity Information [Line Items]
Entity Registrant Name	Hudson Pacific Properties, Inc.
Entity Central Index Key	1,482,512
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		156,679,052
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 5,230
Hudson Pacific Partners, L.P.
Entity Information [Line Items]
Entity Registrant Name	Hudson Pacific Properties, L.P.
Entity Central Index Key	1,496,264
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Investment in real estate, at cost	$ 6,423,441	$ 5,878,480
Accumulated depreciation and amortization	(533,498)	(375,207)
Investment in real estate, net	5,889,943	5,503,273
Cash and cash equivalents	78,922	83,015
Restricted cash	22,358	25,177
Accounts receivable, net	4,363	7,007
Straight-line rent receivables, net	109,457	79,209
Deferred leasing costs and lease intangible assets, net	244,554	288,929
Prepaid expenses and other assets, net	61,138	77,214
Assets associated with real estate held for sale	211,335	615,174
TOTAL ASSETS	6,622,070	6,678,998
LIABILITIES
Notes payable, net	2,421,380	2,473,326
Accounts payable and accrued liabilities	163,107	114,674
Lease intangible liabilities, net	49,930	73,267
Security deposits and prepaid rent	64,031	66,878
Derivative liabilities	265	1,303
Liabilities associated with real estate held for sale	2,216	236,623
TOTAL LIABILITIES	2,700,929	2,966,071
6.25% Series A cumulative redeemable preferred units of the operating partnership	10,177	10,177
Hudson Pacific Properties, Inc. stockholders’ equity:
Common stock, $0.01 par value, 490,000,000 authorized, 155,602,508 shares and 136,492,235 shares outstanding at December 31, 2017 and 2016, respectively	1,556	1,364
Additional paid-in capital	3,622,988	3,109,394
Accumulated other comprehensive income	13,227	9,496
Accumulated deficit	0	(16,971)
Total Hudson Pacific Properties, Inc. stockholders’ equity	3,637,771	3,103,283
TOTAL EQUITY	3,910,964	3,702,750
Hudson Pacific Properties, L.P. partners’ capital:
Accumulated other comprehensive income	13,227	9,496
Total Liabilities and Equity/Capital	6,622,070	6,678,998
Non-controlling Interest—Members in Consolidated Entities
Hudson Pacific Properties, Inc. stockholders’ equity:
Non-controlling interest	258,602	304,608
Non-controlling interest—Units in the operating partnership
Hudson Pacific Properties, Inc. stockholders’ equity:
Non-controlling interest	14,591	294,859
TOTAL EQUITY	14,591	294,859
Hudson Pacific Partners, L.P.
ASSETS
Investment in real estate, at cost	6,423,441	5,878,480
Accumulated depreciation and amortization	(533,498)	(375,207)
Investment in real estate, net	5,889,943	5,503,273
Cash and cash equivalents	78,922	83,015
Restricted cash	22,358	25,177
Accounts receivable, net	4,363	7,007
Straight-line rent receivables, net	109,457	79,209
Deferred leasing costs and lease intangible assets, net	244,554	288,929
Prepaid expenses and other assets, net	61,138	77,214
Assets associated with real estate held for sale	211,335	615,174
TOTAL ASSETS	6,622,070	6,678,998
LIABILITIES
Notes payable, net	2,421,380	2,473,326
Accounts payable and accrued liabilities	163,107	114,674
Lease intangible liabilities, net	49,930	73,267
Security deposits and prepaid rent	64,031	66,878
Derivative liabilities	265	1,303
Liabilities associated with real estate held for sale	2,216	236,623
TOTAL LIABILITIES	2,700,929	2,966,071
6.25% Series A cumulative redeemable preferred units of the operating partnership	10,177	10,177
Hudson Pacific Properties, Inc. stockholders’ equity:
Accumulated other comprehensive income	13,276	5,878
Hudson Pacific Properties, L.P. partners’ capital:
Common units, 156,171,553 and 145,942,855 issued and outstanding at December 31, 2017 and 2016, respectively.	3,639,086	3,392,264
Accumulated other comprehensive income	13,276	5,878
Total Hudson Pacific Properties, L.P. partners' capital	3,652,362	3,398,142
Non-controlling interest—members in consolidated entities	258,602	304,608
TOTAL CAPITAL	3,910,964	3,702,750
Total Liabilities and Equity/Capital	$ 6,622,070	$ 6,678,998

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Common Stock:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	490,000,000	490,000,000
Company stock, shares outstanding	155,602,508	136,492,235
Hudson Pacific Partners, L.P.
Common Stock:
Company stock, shares outstanding	156,171,553	145,942,855
Common stock, shares issued	156,171,553	145,942,855
Series A Cumulative Redeemable Preferred Units of the Operating Partnership
Temporary Equity, dividend rate percentage	6.25%	6.25%
Series A Cumulative Redeemable Preferred Units of the Operating Partnership | Hudson Pacific Partners, L.P.
Temporary Equity, dividend rate percentage	6.25%	6.25%

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES
TOTAL REVENUES	$ 728,139	$ 639,639	$ 520,850
OPERATING EXPENSES
General and administrative	54,459	52,400	38,534
Depreciation and amortization	283,570	269,087	245,071
TOTAL OPERATING EXPENSES	591,536	550,232	473,462
INCOME FROM OPERATIONS	136,603	89,407	47,388
OTHER EXPENSE (INCOME)
Interest expense	90,037	76,044	50,667
Interest income	(97)	(260)	(124)
Unrealized loss on ineffective portion of derivatives	70	1,436	0
Transaction-related expenses	598	376	43,336
Other (income) expense	(2,992)	(1,558)	62
TOTAL OTHER EXPENSES	87,616	76,038	93,941
INCOME (LOSS) BEFORE GAINS ON SALE OF REAL ESTATE	48,987	13,369	(46,553)
Gains on sale of real estate	45,574	30,389	30,471
NET INCOME (LOSS)	94,561	43,758	(16,082)
Net income attributable to preferred stock and units	(636)	(636)	(12,105)
Original issuance costs of redeemed Series B preferred stock	0	0	(5,970)
Net income attributable to participating securities	(1,003)	(766)	(356)
Net income attributable to non-controlling interest in consolidated entities	(24,960)	(9,290)	(3,853)
Net (income) loss attributable to non-controlling interest in the operating partnership	(375)	(5,848)	21,969
Net income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	$ 67,587	$ 27,218	$ (16,397)
Basic and diluted per share amounts:
Net income (loss) attributable to common stockholders - basic (in dollars per share)	$ 0.44	$ 0.26	$ (0.19)
Net income (loss) attributable to common stockholders - diluted (in dollars per share)	$ 0.44	$ 0.25	$ (0.19)
Weighted average shares of common stock outstanding—basic (in shares)	153,488,730	106,188,902	85,927,216
Weighted average shares of common stock outstanding—diluted (in shares)	153,882,814	110,369,055	85,927,216
Office
REVENUES
Rental	$ 545,453	$ 486,956	$ 394,543
Tenant recoveries	92,244	84,386	66,235
Parking and other	29,413	21,894	20,940
TOTAL REVENUES	667,110	593,236	481,718
OPERATING EXPENSES
Operating expenses	218,873	202,935	166,131
Media & Entertainment
REVENUES
Rental	36,529	26,837	23,027
Tenant recoveries	1,336	1,884	943
Other property-related revenue	22,805	17,380	14,849
Parking and other	359	302	313
TOTAL REVENUES	61,029	46,403	39,132
OPERATING EXPENSES
Operating expenses	34,634	25,810	23,726
Hudson Pacific Partners, L.P.
REVENUES
TOTAL REVENUES	728,139	639,639	520,850
OPERATING EXPENSES
General and administrative	54,459	52,400	38,534
Depreciation and amortization	283,570	269,087	245,071
TOTAL OPERATING EXPENSES	591,536	550,232	473,462
INCOME FROM OPERATIONS	136,603	89,407	47,388
OTHER EXPENSE (INCOME)
Interest expense	90,037	76,044	50,667
Interest income	(97)	(260)	(124)
Unrealized loss on ineffective portion of derivatives	70	1,436	0
Transaction-related expenses	598	376	43,336
Other (income) expense	(2,992)	(1,558)	62
TOTAL OTHER EXPENSES	87,616	76,038	93,941
INCOME (LOSS) BEFORE GAINS ON SALE OF REAL ESTATE	48,987	13,369	(46,553)
Gains on sale of real estate	45,574	30,389	30,471
NET INCOME (LOSS)	94,561	43,758	(16,082)
Net income attributable to preferred stock and units	(636)	(636)	(12,105)
Original issuance costs of redeemed Series B preferred stock	0	0	(5,970)
Net income attributable to participating securities	(1,003)	(766)	(356)
Net income attributable to non-controlling interest in consolidated entities	(24,960)	(9,290)	(3,853)
Net income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	67,962	33,066	(38,366)
Net income (loss) attributable to Hudson Pacific Properties, L.P.	69,601	34,468	(19,935)
Total preferred distributions	$ 636	$ 636	$ 18,075
Basic and diluted per share amounts:
Weighted average shares of common stock outstanding—basic (in shares)	154,276,773	145,595,246	128,948,077
Weighted average shares of common stock outstanding—diluted (in shares)	154,670,857	146,739,246	128,948,077
Basic and diluted per unit amounts:
Net income (loss) attributable to common unitholders - basic (in dollars per share)	$ 0.44	$ 0.23	$ (0.30)
Net income (loss) attributable to common unitholders — diluted (in dollars per share)	$ 0.44	$ 0.23	$ (0.30)
Weighted average shares of common units outstanding - basic (in shares)	154,276,773	145,595,246	128,948,077
Weighted average shares of common units outstanding - diluted (in shares)	154,670,857	146,739,246	128,948,077
Hudson Pacific Partners, L.P. | Office
REVENUES
Rental	$ 545,453	$ 486,956	$ 394,543
Tenant recoveries	92,244	84,386	66,235
Parking and other	29,413	21,894	20,940
TOTAL REVENUES	667,110	593,236	481,718
OPERATING EXPENSES
Operating expenses	218,873	202,935	166,131
Hudson Pacific Partners, L.P. | Media & Entertainment
REVENUES
Rental	36,529	26,837	23,027
Tenant recoveries	1,336	1,884	943
Other property-related revenue	22,805	17,380	14,849
Parking and other	359	302	313
TOTAL REVENUES	61,029	46,403	39,132
OPERATING EXPENSES
Operating expenses	$ 34,634	$ 25,810	$ 23,726

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income (loss)	$ 94,561	$ 43,758	$ (16,082)
Other comprehensive income: change in fair value of derivatives	7,398	5,942	2,597
Comprehensive income (loss)	101,959	49,700	(13,485)
Comprehensive income attributable to preferred stock and units	(636)	(636)	(12,105)
Comprehensive income attributable to redemption of Series B preferred stock	0	0	(5,970)
Comprehensive income attributable to participating securities	(1,003)	(766)	(356)
Comprehensive income attributable to non-controlling interest in consolidated entities	(24,960)	(9,290)	(3,853)
Comprehensive (income) loss attributable to non-controlling interest in the operating partnership	(420)	(1,213)	20,734
Comprehensive income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	74,940	37,795	(15,035)
Hudson Pacific Partners, L.P.
Net income (loss)	94,561	43,758	(16,082)
Other comprehensive income: change in fair value of derivatives	7,398	5,942	2,597
Comprehensive income (loss)	101,959	49,700	(13,485)
Comprehensive income attributable to preferred stock and units	(636)	(636)	(12,105)
Comprehensive income attributable to redemption of Series B preferred stock	0	0	(5,970)
Comprehensive income attributable to participating securities	(1,003)	(766)	(356)
Comprehensive income attributable to non-controlling interest in consolidated entities	(24,960)	(9,290)	(3,853)
Comprehensive income attributable to preferred stock and units	(636)	(636)	(12,105)
Comprehensive income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	$ 75,360	$ 39,008	$ (35,769)

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Series B Redeemable Preferred Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income	Non-controlling interest—Units in the operating partnership	Non-controlling interest—Members in Consolidated Entities
Beginning balance at Dec. 31, 2014	$ 1,275,015	$ 668	$ 145,000	$ 1,070,833	$ (34,884)	$ (2,443)	$ 52,851	$ 42,990
Beginning balance (in shares) at Dec. 31, 2014		66,797,816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions	217,795							217,795
Distributions	(2,013)							(2,013)
Proceeds from sale of common stock, net of underwriters’ discount and transaction costs	380,620	$ 127		380,493
Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares)		12,650,000
Redemption of Series B preferred stock	(145,000)		(145,000)
Issuance of common units for acquisition properties	1,814,936						1,814,936
Issuance of unrestricted stock	285,445	$ 87		285,358
Issuance of unrestricted stock (in shares)		8,820,482
Issuance of restricted stock	0
Issuance of restricted stock (in shares)		36,223
Shares withheld to satisfy tax withholding	(5,128)			(5,128)
Shares withheld to satisfy tax withholding (in shares)		(85,469)
Declared dividend	(87,344)		(11,469)	(50,244)			(25,631)
Amortization of stock-based compensation	8,832			8,832
Net income (loss)	(16,718)		11,469		(10,071)		(21,969)	3,853
Change in fair value of derivatives	2,597					1,362	1,235
Exchange of common units in the operating partnership for common stock	0	$ 9		20,835			(20,844)
Exchange of Non-controlling Interests — common units in the operating partnership for common stock (in shares)		934,728
Change in fair value of derivatives	2,597
Ending balance at Dec. 31, 2015	3,729,037	$ 891	0	1,710,979	(44,955)	(1,081)	1,800,578	262,625
Ending balance (in shares) at Dec. 31, 2015		89,153,780
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions	33,996							33,996
Distributions	(1,303)							(1,303)
Proceeds from sale of common stock, net of underwriters’ discount and transaction costs	1,449,581	$ 470		1,449,111
Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares)		47,010,695
Issuance of unrestricted stock	6	$ 6
Issuance of unrestricted stock (in shares)		590,520
Shares withheld to satisfy tax withholding	(8,427)	$ (3)		(8,424)
Shares withheld to satisfy tax withholding (in shares)		(262,760)
Declared dividend	(117,819)			(90,005)			(27,814)
Amortization of stock-based compensation	14,654			13,609			1,045
Net income (loss)	43,122				27,984		5,848	9,290
Change in fair value of derivatives	5,942					10,577	(4,635)
Redemption of common units in the operating partnership	(1,446,039)			34,124			(1,480,163)
Ending balance at Dec. 31, 2016	$ 3,702,750	$ 1,364	0	3,109,394	(16,971)	9,496	294,859	304,608
Ending balance (in shares) at Dec. 31, 2016	136,492,235	136,492,235
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions	$ 3,870							3,870
Distributions	(74,836)							(74,836)
Proceeds from sale of common stock, net of underwriters’ discount and transaction costs	647,382	$ 187		647,195
Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares)		18,656,575
Issuance of unrestricted stock	0	$ 9		(9)
Issuance of unrestricted stock (in shares)		917,086
Shares withheld to satisfy tax withholding	(16,041)	$ (4)		(16,037)
Shares withheld to satisfy tax withholding (in shares)		(463,388)
Declared dividend	(158,544)			(106,269)	(51,619)		(656)
Amortization of stock-based compensation	15,915			13,249			2,666
Net income (loss)	93,925				68,590		375	24,960
Change in fair value of derivatives	1,500
Change in fair value of derivatives	7,398					7,353	45
Redemption of common units in the operating partnership	(310,855)			(24,535)		(3,622)	(282,698)
Ending balance at Dec. 31, 2017	$ 3,910,964	$ 1,556	$ 0	$ 3,622,988	$ 0	$ 13,227	$ 14,591	$ 258,602
Ending balance (in shares) at Dec. 31, 2017	155,602,508	155,602,508

Consolidated Statements of Capi

Consolidated Statements of Capital - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in shares)	136,492,235
Contributions	$ 3,870	$ 33,996	$ 217,795
Distributions	(74,836)	(1,303)	(2,013)
Proceeds from sale of common units, net of underwriters’ discount and transaction costs	647,382	1,449,581	380,620
Issuance of unrestricted stock	0	6	285,445
Issuance of restricted units			0
Units withheld to satisfy tax withholding	(16,041)	(8,427)	(5,128)
Declared distributions	(158,544)	(117,819)	(87,344)
Amortization of unit-based compensation	15,915	14,654	8,832
Net income (loss)	93,925	43,122	(16,718)
Change in fair value of derivatives	7,398	5,942	2,597
Redemption of Series B preferred stock			(145,000)
Redemption of operating partnership units and common units	$ (310,855)	$ (1,446,039)
Ending balance (in shares)	155,602,508	136,492,235
Hudson Pacific Partners, L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	$ 3,702,750	$ 3,729,037	1,275,015
Beginning balance (in shares)	145,942,855
Contributions	$ 3,870	33,996	217,795
Distributions	(74,836)	(1,303)	(2,013)
Proceeds from sale of common units, net of underwriters’ discount and transaction costs	647,382	1,449,581	380,620
Issuance of unrestricted stock	0	6	2,100,381
Issuance of restricted units			0
Units withheld to satisfy tax withholding	(16,041)	(8,427)	(5,128)
Declared distributions	(158,544)	(117,819)	(87,344)
Amortization of unit-based compensation	15,915	14,654	8,832
Net income (loss)	93,925	43,122	(16,718)
Change in fair value of derivatives	7,398	5,942	2,597
Redemption of Series B preferred stock			(145,000)
Redemption of operating partnership units and common units	(310,855)	(1,446,039)
Ending balance	$ 3,910,964	$ 3,702,750	3,729,037
Ending balance (in shares)	156,171,553	145,942,855
Hudson Pacific Partners, L.P. | Total Partners’ Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	$ 3,398,142	$ 3,466,412	1,232,025
Proceeds from sale of common units, net of underwriters’ discount and transaction costs	647,382	1,449,581	380,620
Issuance of unrestricted stock		6	2,100,381
Units withheld to satisfy tax withholding	(16,041)	(8,427)	(5,128)
Declared distributions	(158,544)	(117,819)	(87,344)
Amortization of unit-based compensation	15,915	14,654	8,832
Net income (loss)	68,965	33,832	(20,571)
Change in fair value of derivatives	7,398	5,942	2,597
Redemption of Series B preferred stock			(145,000)
Redemption of operating partnership units and common units	(310,855)	(1,446,039)
Ending balance	3,652,362	3,398,142	3,466,412
Hudson Pacific Partners, L.P. | Preferred Units
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	0	0	145,000
Declared distributions			(11,469)
Net income (loss)			11,469
Redemption of Series B preferred stock			(145,000)
Ending balance	0	0	0
Hudson Pacific Partners, L.P. | Common Stock
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	$ 3,392,264	$ 3,466,476	$ 1,089,686
Beginning balance (in shares)	145,942,855	145,450,095	69,180,379
Proceeds from sale of common units, net of underwriters’ discount and transaction costs	$ 647,382	$ 1,449,581	$ 380,620
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)	18,656,575	47,010,695	12,650,000
Issuance of unrestricted stock		$ 6	$ 2,100,381
Issuance of unrestricted stock (in shares)	917,086	590,520	63,668,962
Issuance of restricted stock (in shares)			36,223
Units withheld to satisfy tax withholding	$ (16,041)	$ (8,427)	$ (5,128)
Units withheld to satisfy tax withholding (in shares)	(463,388)	(262,760)	(85,469)
Declared distributions	$ (158,544)	$ (117,819)	$ (75,875)
Amortization of unit-based compensation	15,915	14,654	8,832
Net income (loss)	68,965	33,832	(32,040)
Redemption of operating partnership units and common units	$ (310,855)	$ (1,446,039)
Redemption of common units (in shares)	(8,881,575)	(46,845,695)
Ending balance	$ 3,639,086	$ 3,392,264	$ 3,466,476
Ending balance (in shares)	156,171,553	145,942,855	145,450,095
Hudson Pacific Partners, L.P. | Accumulated Other Comprehensive (Loss) Income
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	$ 5,878	$ (64)	$ (2,661)
Change in fair value of derivatives	7,398	5,942	2,597
Ending balance	13,276	5,878	(64)
Hudson Pacific Partners, L.P. | Non-controlling interest—Members in Consolidated Entities
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	304,608	262,625	42,990
Contributions	3,870	33,996	217,795
Distributions	(74,836)	(1,303)	(2,013)
Net income (loss)	24,960	9,290	3,853
Ending balance	$ 258,602	$ 304,608	$ 262,625

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)		$ 94,561	$ 43,758	$ (16,082)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		283,570	269,087	245,071
Non-cash portion of interest expense		6,032	4,464	4,746
Amortization of stock-based compensation		15,079	14,144	8,421
Straight-line rents		(29,638)	(29,079)	(29,392)
Straight-line rent expenses		433	1,023	408
Amortization of above- and below-market leases, net		(18,062)	(19,734)	(22,073)
Amortization of above- and below-market ground lease, net		2,505	2,160	1,642
Amortization of lease incentive costs		1,546	1,388	581
Other non-cash adjustments	[1]	883	707	(246)
Gains on sale of real estate		(45,574)	(30,389)	(30,471)
Change in operating assets and liabilities:
Accounts receivable		1,929	15,088	(5,734)
Deferred leasing costs and lease intangibles		(32,244)	(43,476)	(28,980)
Prepaid expenses and other assets		233	(7,312)	(17,032)
Accounts payable and accrued liabilities		19,447	(4,426)	18,342
Security deposits and prepaid rent		(7,741)	9,371	46,582
Net cash provided by operating activities		292,959	226,774	175,783
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to investment property		(302,447)	(258,718)	(170,590)
Property acquisitions		(257,734)	(630,145)	(1,804,597)
Contributions to unconsolidated entities		(1,071)	(37,228)	0
Distributions from unconsolidated entities		15,964	0	0
Proceeds from repayment of notes receivable		0	28,892	0
Proceeds from sales of real estate		212,250	372,302	177,488
Net cash used in investing activities		(333,038)	(524,897)	(1,797,699)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from notes payable		766,660	1,318,000	2,234,687
Payments of notes payable		(822,526)	(888,607)	(913,694)
Proceeds from issuance of common stock, net		647,382	1,449,581	380,620
Redemption of preferred stock/units		(310,855)	(1,446,039)	0
Redemption of Series B preferred stock		0	0	(145,000)
Distributions paid to common stock and unitholders		(158,544)	(117,819)	(75,875)
Distributions paid to preferred stock and unitholders		(636)	(636)	(12,071)
Contributions from non-controlling member in consolidated entities		3,870	33,996	217,795
Distributions to non-controlling member in consolidated entities		(74,836)	(1,303)	(2,013)
Payments to satisfy tax withholding		(16,041)	(8,427)	(5,128)
Payments of loan costs		(1,307)	(3,992)	(20,680)
Net cash provided by financing activities		33,167	334,754	1,658,641
Net (decrease) increase in cash and cash equivalents and restricted cash		(6,912)	36,631	36,725
Cash and cash equivalents and restricted cash—beginning of period		108,192	71,561	34,836
Cash and cash equivalents and restricted cash—end of period		101,280	108,192	71,561
Supplemental disclosure of cash flow information
Cash paid for interest, net of capitalized interest		77,234	82,491	50,208
NON-CASH INVESTING AND FINANCING ACTIVITIES
Accounts payable and accrued liabilities for real estate investments		(19,587)	(37,364)	(27,972)
Reclassification of investment in unconsolidated entities for real estate investments		7,835	0	0
Relief of debt in conjunction with sale of real estate		(216,000)	0	0
Proceeds from sale of real estate		216,000	0	0
Issuance of common stock in connection with property acquisition		0	0	87
Additional paid-in capital in connection with property acquisition		0	0	285,358
Non-controlling common units in the operating partnership in connection with property acquisition		0	0	1,814,936
Hudson Pacific Partners, L.P.
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)		94,561	43,758	(16,082)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		283,570	269,087	245,071
Non-cash portion of interest expense		6,032	4,464	4,746
Amortization of stock-based compensation		15,079	14,144	8,421
Straight-line rents		(29,638)	(29,079)	(29,392)
Straight-line rent expenses		433	1,023	408
Amortization of above- and below-market leases, net		(18,062)	(19,734)	(22,073)
Amortization of above- and below-market ground lease, net		2,505	2,160	1,642
Amortization of lease incentive costs		1,546	1,388	581
Other non-cash adjustments	[1]	883	707	(246)
Gains on sale of real estate		(45,574)	(30,389)	(30,471)
Change in operating assets and liabilities:
Accounts receivable		1,929	15,088	(5,734)
Deferred leasing costs and lease intangibles		(32,244)	(43,476)	(28,980)
Prepaid expenses and other assets		233	(7,312)	(17,032)
Accounts payable and accrued liabilities		19,447	(4,426)	18,342
Security deposits and prepaid rent		(7,741)	9,371	46,582
Net cash provided by operating activities		292,959	226,774	175,783
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to investment property		(302,447)	(258,718)	(170,590)
Property acquisitions		(257,734)	(630,145)	(1,804,597)
Contributions to unconsolidated entities		(1,071)	(37,228)	0
Distributions from unconsolidated entities		15,964	0	0
Proceeds from repayment of notes receivable		0	28,892	0
Proceeds from sales of real estate		212,250	372,302	177,488
Net cash used in investing activities		(333,038)	(524,897)	(1,797,699)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from notes payable		766,660	1,318,000	2,234,687
Payments of notes payable		(822,526)	(888,607)	(913,694)
Proceeds from issuance of common stock, net		647,382	1,449,581	380,620
Redemption of preferred stock/units		(310,855)	(1,446,039)	0
Redemption of Series B preferred stock		0	0	(145,000)
Distributions paid to common stock and unitholders		(158,544)	(117,819)	(75,875)
Distributions paid to preferred stock and unitholders		(636)	(636)	(12,071)
Contributions from non-controlling member in consolidated entities		3,870	33,996	217,795
Distributions to non-controlling member in consolidated entities		(74,836)	(1,303)	(2,013)
Payments to satisfy tax withholding		(16,041)	(8,427)	(5,128)
Payments of loan costs		(1,307)	(3,992)	(20,680)
Net cash provided by financing activities		33,167	334,754	1,658,641
Net (decrease) increase in cash and cash equivalents and restricted cash		(6,912)	36,631	36,725
Cash and cash equivalents and restricted cash—beginning of period		108,192	71,561	34,836
Cash and cash equivalents and restricted cash—end of period		101,280	108,192	71,561
Supplemental disclosure of cash flow information
Cash paid for interest, net of capitalized interest		77,234	82,491	50,208
NON-CASH INVESTING AND FINANCING ACTIVITIES
Accounts payable and accrued liabilities for real estate investments		(19,587)	(37,364)	(27,972)
Reclassification of investment in unconsolidated entities for real estate investments		7,835	0	0
Relief of debt in conjunction with sale of real estate		(216,000)	0	0
Proceeds from sale of real estate		216,000	0	0
Issuance of common stock in connection with property acquisition		$ 0	$ 0	$ 2,100,381
[1]	Represents bad debt expense/recovery, amortization of discount and net origination fees on purchased and originated loans and unrealized loss/gain on ineffective portion of derivative instruments.

Organization

Organization	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Hudson Pacific Properties, Inc. is a Maryland corporation formed on November 9, 2009 as a fully integrated, self-administered and self-managed real estate investment trust (“REIT”). Through its controlling interest in the operating partnership and its subsidiaries, Hudson Pacific Properties, Inc. owns, manages, leases, acquires and develops real estate, consisting primarily of office and media and entertainment properties. Unless otherwise indicated or unless the context requires otherwise, all references in these financial statements to “the Company” refer to Hudson Pacific Properties, Inc. together with its consolidated subsidiaries, including Hudson Pacific Properties, L.P. Unless otherwise indicated or unless the context requires otherwise, all references to “our operating partnership” or “the operating partnership” refer to Hudson Pacific Properties, L.P. together with its consolidated subsidiaries. On April 1, 2015, the Company completed the acquisition of the EOP Northern California Portfolio (“EOP Acquisition”) from Blackstone Real Estate Partners V and VI (“Blackstone”). The EOP Acquisition consisted of 26 high-quality office assets totaling approximately 8.2 million square feet and two development parcels located throughout Northern California. The total consideration paid for the EOP Acquisition before certain credits, prorations and closing costs included a cash payment of $1.75 billion and an aggregate of 63,474,791 shares of common stock of Hudson Pacific Properties, Inc. and common units in the operating partnership. The Company’s portfolio consists of properties located throughout Northern and Southern California and the Pacific Northwest. The following table summarizes the Company’s portfolio as of December 31, 2017 : Segments Number of Properties Square Feet (unaudited) Office 51 13,291,531 Media & Entertainment 3 1,249,927 Total (1) 54 14,541,458 _________________ (1) Includes redevelopment, development and held for sale properties.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements of the Company and the operating partnership are prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). Any reference to the number of properties, acres and square footage are unaudited and outside the scope of the Company’s independent registered public accounting firm’s audit of the Company’s financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board (“PCAOB”). Certain amounts in the consolidated financial statements for the prior periods have been reclassified to conform to the current year presentation. Included in the reclassified amounts are properties held for sale. These amounts are related to 3402 Pico, which was sold on March 21, 2017, Pinnacle I and Pinnacle II, which were sold on November 16, 2017 as well as four other properties, which were classified as held for sale as of December 31, 2017. See Note 3 for details of the properties classified as held for sale. Principles of Consolidation The consolidated financial statements of the Company include the accounts of the Company, the operating partnership and all wholly owned and controlled subsidiaries. The consolidated financial statements of the operating partnership include the accounts of the operating partnership and all wholly owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements. Under the consolidation guidance, we first evaluate an entity using the variable interest model, then the voting model. The Company ultimately consolidates all entities that the Company controls through either majority ownership or voting rights, including all variable interest entities (“VIEs”) of which the Company is considered the primary beneficiary. The Company accounts for all other unconsolidated joint ventures using the cost or equity method of accounting. In addition, we continually evaluate each legal entity that is not wholly owned for reconsideration based on changing circumstances. VIEs are defined as entities in which equity investors do not have: • the characteristics of a controlling financial interest; • sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties; and/or • the entity is structured with non-substantive voting rights. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with both the power to direct the activities that most significantly affect the VIE’s economic performance and the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. As of December 31, 2017 , the Company has determined that three joint ventures and our operating partnership met the definition of a VIE. Two of the joint ventures are consolidated entities and one joint venture is a non-consolidated entity. Consolidated Entities On November 16, 2017, the Company sold its 65.0% ownership interest in the single joint venture that owned both Pinnacle I and Pinnacle II. As a result of the disposition, the Company no longer consolidates Pinnacle and Pinnacle II. As of December 31, 2017 , the operating partnership has determined that two of its joint ventures met the definition of a VIE and are consolidated: Property Ownership interest 1455 Market 55.0 % Hill7 55.0 % As of December 31, 2017 , the Company has determined that our operating partnership met the definition of a VIE and is consolidated. Substantially all of the assets and liabilities of the Company are related to these VIEs. Non-consolidated Entities On June 15, 2017, the Company purchased the remaining interest in land at its 11601 Wilshire property. Refer to Note 3 for details. As a result of the purchase, the Company is now consolidating the interest in land. On June 16, 2016, the Company entered into a joint venture to co-originate a loan secured by land in Santa Clara, California. The assets of the joint venture consist of notes receivable. As of December 31, 2017 , the Company has determined this joint venture meets the definition of a VIE, however, it is not the primary beneficiary. Due to its significant influence over the non-consolidated entity, the Company accounts for it using the equity method of accounting. Under the equity method, the Company initially records the investment at cost and subsequently adjusts for equity in earnings or losses and cash contributions and distributions. The Company’s net equity investment of $14.2 million is reflected within prepaid expenses and other assets on the Consolidated Balance Sheets which represents the Company’s maximum exposure for loss. The Company’s share of net income or loss from the entity is included within other (income) expense on the Consolidated Statements of Operations. The Company owns 21% of the non-consolidated entity. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of commitments and contingencies at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates, including those related to acquiring, developing and assessing the carrying values of its real estate properties, its accrued liabilities, and its performance-based equity compensation awards. The Company bases its estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results could materially differ from these estimates. Investment in Real Estate Properties Acquisitions The Company evaluates each acquisition of real estate to determine if the integrated set of assets and activities acquired meet the definition of a business and need to be accounted for as a business combination in accordance with ASC 805, Business Combinations . An integrated set of assets and activities would fail to qualify as a business if either (i) substantially all of the fair value of the gross assets acquired is concentrated in either a single identifiable asset or a group of similar identifiable assets or (ii) the integrated set of assets and activities is lacking, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs (i.e., revenue generated before and after the transaction). An acquired process is considered substantive if (i) the process includes an organized workforce (or includes an acquired contract that provides access to an organized workforce), that is skilled, knowledgeable, and experienced in performing the process (ii) the process cannot be replaced without significant cost, effort, or delay or (iii) the process is considered unique or scarce. Acquisitions of real estate will generally not meet the revised definition of a business because substantially all of the fair value is concentrated in a single identifiable asset or group of similar identifiable assets (i.e., land, buildings and improvements and related intangible assets or liabilities) or because the acquisition does not include a substantive process in the form of an acquired workforce or an acquired contract that cannot be replaced without significant cost, effort or delay. When the Company acquires properties that are considered business combinations, assets acquired and liabilities assumed are fair valued at the acquisition date. Assets acquired and liabilities assumed include, but are not limited to, land, building and improvements, intangible assets related to above-and below-market leases, intangible assets related to in-place leases, debt and other assumed assets and liabilities. The initial accounting for a business combination is based on management’s preliminary assessment, which may differ when final information becomes available. Subsequent adjustments made to the initial purchase price assignment are made within the measurement period, which typically does not exceed one year, within the Consolidated Balance Sheets. Acquisition-related expenses associated with business combinations are expensed in the period incurred which is included in the transaction-related expenses line item of the Consolidated Statements of Operations. When the Company acquires properties that are considered asset acquisitions, the purchase price is allocated based on relative fair value of the assets acquired and liabilities assumed. There is no measurement period concept for asset acquisitions, with the purchase price accounting being final in the period of acquisition. Additionally, acquisition-related expenses associated with asset acquisitions are capitalized as part of the purchase price. The Company assesses fair value based on Level 2 and Level 3 inputs within the fair value framework, which includes estimated cash flow projections that utilize appropriate discount, capitalization rates, renewal probability and available market information, which includes market rental rate and market rent growth rates. Estimates of future cash flows are based on a number of factors including historical operating results, known and anticipated trends, and market and economic conditions. The fair value of tangible assets of an acquired property considers the value of the property as if it were vacant. The fair value of acquired “above- and below-” market leases are based on the estimated cash flow projections utilizing discount rates that reflect the risks associated with the leases acquired. The amount recorded is based on the present value of the difference between (i) the contractual amounts to be paid pursuant to each in-place lease and (ii) management’s estimate of fair market lease rates for each in-place lease, measured over a period equal to the remaining term of the lease for above-market leases and the initial below-market term plus the extended term for any leases with below-market renewal options. Other intangible assets acquired include amounts for in-place lease values that are based on the Company’s evaluation of the specific characteristics of each tenant’s lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, market conditions and costs to execute similar leases. In estimating carrying costs, the Company includes estimates of lost rents at market rates during the hypothetical expected lease-up periods, which are dependent on local market conditions. In estimating costs to execute similar leases, the Company considers leasing commissions and legal and other related costs. Cost Capitalization The Company capitalizes direct construction and development costs, including redevelopment costs, interest, property taxes, insurance and other costs directly related and essential to the acquisition, development or construction of a real estate project. Indirect development costs, including salaries and benefits, office rent, and associated costs for those individuals directly responsible for and who spend their time on development activities are also capitalized and allocated to the projects to which they relate. Construction and development costs are capitalized while substantial activities are ongoing to prepare an asset for its intended use. The Company considers a construction project as substantially complete and held available for occupancy upon the completion of tenant improvements but no later than one year after cessation of major construction activity. Costs incurred after a project is substantially complete and ready for its intended use, or after development activities have ceased, are expensed as they are incurred. Costs previously capitalized that related to abandoned acquisitions or developments are charged to earnings. Expenditures for repairs and maintenance are expensed as they are incurred. The Company recognized the following capitalized costs: Year Ended December 31, 2017 2016 2015 Capitalized personnel costs $ 10,853 $ 9,347 $ 7,349 Capitalized interest 10,655 11,307 6,516 Operating Properties The properties are generally carried at cost, less accumulated depreciation and amortization. The Company computes depreciation and amortization using the straight-line method over the estimated useful lives of the assets as represented in the table below: Asset Description Estimated useful life (years) Building and improvements Shorter of the ground lease term or 39 Land improvements 15 Furniture and fixtures 5 to 7 Tenant improvements Shorter of the estimated useful life or the lease term The Company amortizes above- and below-market lease intangibles over the remaining non-cancellable lease terms and bargain renewal periods, if applicable. The in-place lease intangibles are amortized over the remaining non-cancellable lease term. When tenants vacate prior to the expiration of lease, the amortization of intangible assets and liabilities are accelerated. The Company amortizes above- and below-market ground lease intangibles over the remaining non-cancellable lease terms. Held for sale The Company classifies properties as held for sale when certain criteria set forth in Accounting Standards Codification (“ASC”) 360, Property, Plant, and Equipment , are met. These criteria include (i) whether the Company is committed to a plan to sell, (ii) whether the asset or disposal group is available for immediate sale, (iii) whether an active program to locate a buyer and other actions required to complete the plan to sell have been initiated, (iv) whether the sale of the asset or disposal group is probable (i.e., likely to occur) and the transfer is expected to qualify for recognition as a completed sale within one year, (v) whether the long-lived asset or disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value, (vi) whether actions necessary to complete the plan indicate that it is unlikely significant changes to the plan will be made or that the plan will be withdrawn. At the time a property is classified as held for sale, the Company reclassifies its assets and liabilities to held for sale in the Consolidated Balance Sheets for the periods presented and ceases recognizing depreciation expense. Properties held for sale are reported at the lower of their carrying value or their estimated fair value, less estimated costs to sell. According to ASC 205, Presentation of Financial Statements , the Company does not present the operating results in net loss from discontinued operations for disposals if they do not represent a strategic shift in the Company’s business. There were no discontinued operations for the years ended December 31, 2017 , 2016 , and 2015. Impairment of Long-Lived Assets The Company assesses the carrying value of real estate assets and related intangibles for impairment on a quarterly basis and whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable in accordance with GAAP. Impairment losses are recorded on real estate assets held for investment when indicators of impairment are present and the future undiscounted cash flows estimated to be generated by those assets are less than the assets’ carrying amount. The Company recognizes impairment losses to the extent the carrying amount exceeds the fair value of the properties. No impairment indicators have been noted and the Company recorded no impairment charges during the years ended December 31, 2017 , 2016 and 2015. Goodwill Goodwill represents the excess of acquisition cost over the fair value of net tangible and identifiable intangible assets acquired and liabilities assumed in business acquisitions. The Company does not amortize this asset but instead analyzes it on a quarterly basis for impairment. No impairment indicators have been noted during the years ended December 31, 2017 and 2016 , respectively. Goodwill is included in the prepaid expenses and other assets, net line item on the Consolidated Balance Sheets. Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents are defined as cash on hand and in banks, plus all short-term investments with a maturity of three months or less when purchased. Restricted cash primarily consists of amounts held by lenders to fund reserves such as capital improvements, taxes, insurance, debt service and operating expenditures. The Company maintains some of its cash in bank deposit accounts that, at times, may exceed the federally insured limit. No losses have been experienced related to such accounts. Pursuant to the adoption of ASU 2016-18, the Company included restricted cash with cash and cash equivalents in the Consolidated Statements of Cash Flows, which resulted in an increase of $7.2 million and $0.9 million in the net cash provided by operating activities line item in the Consolidated Statements of Cash Flows for the years ended December 31, 2016 and 2015. The following table provides a reconciliation of cash and cash equivalents and restricted cash at the beginning and end of the periods presented: December 31, 2017 2016 2015 (1) Beginning of period: Cash and cash equivalents $ 83,015 $ 53,551 $ 17,753 Restricted cash 25,177 18,010 17,083 Total $ 108,192 $ 71,561 $ 34,836 End of period: Cash and cash equivalents $ 78,922 $ 83,015 $ 53,551 Restricted cash 22,358 25,177 18,010 Total $ 101,280 $ 108,192 $ 71,561 _____________ (1) Includes restricted cash that was previously included in assets held for sale as of December 31, 2014. Accounts Receivable, net Accounts receivable consist of amounts due for monthly rents and other charges. The Company maintains an allowance for doubtful accounts for estimated losses resulting from tenant defaults or the inability of tenants to make contractual rent and tenant recovery payments. The Company monitors the liquidity and creditworthiness of its tenants and operators on an ongoing basis. This evaluation considers industry and economic conditions, property performance, credit enhancements, length of time the receivables are past due, specific identification of uncollectible amounts, historical experience and other relevant factors. Historical experience has been within management’s expectations. The following table represents the Company’s accounts receivable, net as of: December 31, 2017 December 31, 2016 Accounts receivable $ 6,835 $ 8,834 Allowance for doubtful accounts (2,472 ) (1,827 ) Accounts receivable, net (1) $ 4,363 $ 7,007 _____________ (1) Excludes balances related to properties that have been classified as held for sale. Straight-line Rent Receivables, net For straight-line rent amounts, the Company’s assessment is based on amounts estimated to be recoverable over the term of the lease. The Company evaluates the collectability of straight-line rent receivables based on the length of time the related rental receivables are past due, the current business environment and the Company’s historical experience. The following table represents the Company’s straight - line rent receivables, net as of: December 31, 2017 December 31, 2016 Straight-line rent receivables $ 109,457 $ 79,345 Allowance for doubtful accounts — (136 ) Straight-line rent receivables, net (1) $ 109,457 $ 79,209 _____________ (1) Excludes balances related to properties that have been classified as held for sale. Prepaid Expenses and Other Assets, net Prepaid expenses and other assets primarily consists of investments in unconsolidated entities, goodwill and derivative assets. These balances were presented separately on the 2016 Form 10-K, however, these accounts have been reclassified on our Consolidated Balance Sheets to conform to the current year’s presentation. The following table represents the Company’s prepaid expenses and other assets, net as of: December 31, 2017 December 31, 2016 Investment in unconsolidated entities $ 14,240 $ 37,228 Goodwill 8,754 8,754 Derivative assets 12,586 5,935 Other 25,558 25,297 Prepaid expenses and other assets, net (1) $ 61,138 $ 77,214 _____________ (1) Excludes balances related to properties that have been classified as held for sale. Security Deposits and Prepaid Rent The security deposits and prepaid rent balances were presented separately on the 2016 Form 10-K, however, these accounts have been reclassified on our Consolidated Balance Sheets to conform to the current year’s presentation. The following table represents the Company’s security deposits and prepaid rent as of: December 31, 2017 December 31, 2016 Security deposits $ 36,458 $ 29,837 Prepaid rent 27,573 37,041 Security deposits and prepaid rent (1) $ 64,031 $ 66,878 _____________ (1) Excludes balances related to properties that have been classified as held for sale. Segment Reporting The Company’s reporting segments are based on the Company’s method of internal reporting, which classifies its operations into two reporting segments: (i) office properties and (ii) media and entertainment properties. The Company evaluates performance based upon net operating income of the combined properties in each segment. The media and entertainment segment is immaterial, and therefore separate income information by segment has not been presented. Asset information by segment is not reported because the Company does not use this measure to assess performance or make decisions to allocate resources. Revenue Recognition The Company recognizes rental revenue from tenants on a straight-line basis over the lease term when collectability is reasonably assured and the tenant has taken possession or controls the physical use of the leased asset. If the lease provides for tenant improvements, the Company determines whether the tenant improvements, for accounting purposes, are owned by the tenant or the Company. When the Company is the owner of the tenant improvements, the tenant is not considered to have taken physical possession or have control of the physical use of the leased asset until the tenant improvements are substantially completed. When the tenant is the owner of the tenant improvements, any tenant improvement allowance that is funded is treated as a lease incentive and amortized as a reduction of revenue over the lease term. Tenant improvement ownership is determined based on various factors including, but not limited to: • whether the lease stipulates how and on what a tenant improvement allowance may be spent; • whether the tenant or landlord retains legal title to the improvements at the end of the lease term; • whether the tenant improvements are unique to the tenant or general-purpose in nature; and • whether the tenant improvements are expected to have any residual value at the end of the lease. Certain leases provide for additional rents contingent upon a percentage of the tenant’s revenue in excess of specified base amounts or other thresholds. Such revenue is recognized when actual results reported by the tenant, or estimates of tenant results, exceed the base amount or other thresholds. Such revenue is recognized only after the contingency has been removed (when the related thresholds are achieved), which may result in the recognition of rental revenue in periods subsequent to when such payments are received. Other property-related revenue is revenue that is derived from the tenants’ use of lighting, equipment rental, parking, power, HVAC and telecommunications (telephone and Internet). Other property-related revenue is recognized when these items are provided. Tenant recoveries related to reimbursement of real estate taxes, insurance, repairs and maintenance, and other operating expenses are recognized as revenue in the period during which the applicable expenses are incurred. The reimbursements are recognized and presented gross, as the Company is generally the primary obligor with respect to purchasing goods and services from third-party suppliers, has discretion in selecting the supplier and bears the associated credit risk. The Company recognizes gains on sales of properties upon the closing of the transaction with the purchaser. Gains on properties sold are recognized using the full accrual method when (i) the collectability of the sales price is reasonably assured, (ii) the Company is not obligated to perform significant activities after the sale, (iii) the initial investment from the buyer is sufficient and (iv) other profit recognition criteria have been satisfied. Gains on sales of properties may be deferred in whole or in part until the requirements for gain recognition have been met. Deferred Financing Costs and Debt Discount/Premium Deferred financing costs are amortized over the contractual loan term into interest expense on the Consolidated Statements of Operations. Deferred financing costs, and related amortization, related to the unsecured revolving credit facility and undrawn term loans are presented within prepaid expenses and other assets, net in the Consolidated Balance Sheets. All other deferred financing costs, and related amortization, are included in the notes payable, net line item in the Consolidated Balance Sheets. Debt discounts and premiums are amortized and accreted on a straight-line basis over the contractual loan term, which approximates the effective interest method, into interest expense on the Consolidated Statements of Operations. Discounts are recorded as additional interest expense and premiums are recorded as a reduction to interest expense. Derivative Instruments The Company manages interest rate risk associated with borrowings by entering into derivative instruments. The Company recognizes all derivative instruments on the Consolidated Balance Sheets on a gross basis at fair value. Derivative instruments that are not effective hedges are adjusted to fair value and the changes in fair value are reflected as income or expense. If the derivative instrument is an effective hedge, depending on the nature of the hedge, changes in the fair value are either offset against the change in fair value of the hedged assets, liabilities, or firm commitments through earnings, or recognized in other comprehensive income (loss), which is a component of equity. The ineffective portion of a derivative instrument’s change in fair value is immediately recognized in earnings. Stock-Based Compensation Compensation cost of restricted stock, restricted stock units and performance units under the Company’s equity incentive award plans are accounted for under ASC 718, Compensation-Stock Compensation (“ASC 718”). The Company accounts for forfeitures of awards as they occur. Income Taxes The Company’s property-owning subsidiaries are limited liability companies and are treated as pass-through entities or disregarded entities (or, in the case of the entities that own the 1455 Market and Hill7 properties, REITs) for federal income tax purposes. Accordingly, no provision has been made for federal income taxes in the accompanying consolidated financial statements for the activities of these entities. The Company has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”) commencing with its taxable year ended December 31, 2010. The Company believes that it has operated in a manner that has allowed the Company to qualify as a REIT for federal income tax purposes commencing with such taxable year, and the Company intends to continue operating in such manner. To qualify as a REIT, the Company is required to distribute at least 90% of its net taxable income, excluding net capital gains, to the Company’s stockholders and to meet the various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided that it continues to qualify for taxation as a REIT, the Company is generally not subject to corporate level income tax on the earnings distributed currently to its stockholders. If the Company fails to qualify as a REIT in any taxable year, and is unable to avail itself of certain savings provisions set forth in the Code, all of its taxable income would be subject to federal income tax at regular corporate rates, including any applicable alternative minimum tax. Unless entitled to relief under specific statutory provisions, the Company would be ineligible to elect to be treated as a REIT for the four taxable years following the year for which the Company loses its qualification. It is not possible to state whether in all circumstances the Company would be entitled to this statutory relief. The Company may acquire direct or indirect interests in one or more Subsidiary REITs. A Subsidiary REIT is subject to the various REIT qualification requirements and other limitations described herein that are applicable to the Company. If a subsidiary REIT were to fail to qualify as a REIT, then (i) that Subsidiary REIT would become subject to federal income tax, (ii) shares in such REIT would cease to be qualifying assets for purposes of the asset tests applicable to REITs and (iii) it is possible that the Company would fail certain of the asset tests applicable to REITs, in which event the Company would fail to qualify as a REIT unless the Company could avail itself of certain relief provisions. The Company believes that its operating partnership is properly treated as a partnership for federal income tax purposes. As a partnership, the Company’s operating partnership is not subject to federal income tax on its income. Instead, each of its partners, including the Company, is allocated, and may be required to pay tax with respect to, its share of the operating partnership’s income. As such, no provision for federal income taxes has been included for the operating partnership. The Company has elected, together with one of the Company’s subsidiaries, to treat such subsidiary as a taxable REIT subsidiary (“TRS”) for federal income tax purposes. Certain activities that the Company may undertake, such as non-customary services for the Company’s tenants and holding assets that the Company cannot hold directly, will be conducted by a TRS. A TRS is subject to federal and, where applicable, state income taxes on its net income. The Company’s TRS did not have significant tax provisions or deferred income tax items for 2017 , 2016 or 2015 . The Company is subject to the statutory requirements of the states in which it conducts business. The Company periodically evaluates its tax positions to determine whether it is more likely than not that such positions would be sustained upon examination by a tax authority for all open tax years, as defined by the statute of limitations, based on their technical merits. As of December 31, 2017 , the Company has not established a liability for uncertain tax positions. The Company and its TRS file income tax returns with the U.S. federal government and various state and local jurisdictions. The Company and its TRS are no longer subject to tax examinations by tax authorities for years prior to 2012. Generally, the Company has assessed its tax positions for all open years, which include 2012 to 2016, and concluded that there are no material uncertainties to be recognized. Fair Value of Assets and Liabilities Under GAAP, the Company is required to measure certain financial instruments at fair value on a recurring basis. In addition, the Company is required to measure other financial instruments and balances at fair value on a non-recurring basis (e.g., carrying value of impaired real estate and long-lived assets). Fair value is defined as the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The GAAP fair value framework uses a three-tiered approach. Fair value measurements are classified and disclosed in one of the following three categories: • Level 1: unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities; • Level 2: quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and • Level 3: prices or valuation techniques where little or no market data is available that requires inputs that are both significa

Investment in Real Estate

Investment in Real Estate	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
Investment in Real Estate	Investment in Real Estate The following table summarizes the Company’s investment in real estate, at cost as of: December 31, 2017 December 31, 2016 Land $ 1,302,907 $ 1,155,037 Building and improvements 4,480,993 4,069,005 Tenant improvements 411,706 354,940 Furniture and fixtures 8,608 4,264 Property under development 219,227 295,234 Investment in real estate, at cost (1) $ 6,423,441 $ 5,878,480 _____________ (1) Excludes balances related to properties that have been classified as held for sale. Acquisitions The following table summarizes the information on the acquisitions completed in 2017 and 2016: Property Submarket Segment Month of Acquisition Square Feet Purchase Price (1) (in millions) Sunset Las Palmas Studios (2) Hollywood Media and Entertainment May 2017 369,000 $ 200.0 11601 Wilshire land (3) West Los Angeles Office June 2017 N/A 50.0 6666 Santa Monica (4) Hollywood Media and Entertainment June 2017 4,150 3.2 Total acquisitions in 2017 373,150 $ 253.2 11601 Wilshire (5) West Los Angeles Office July 2016 500,475 $ 311.0 Hill7 (6) South Lake Union Office October 2016 285,680 179.8 Page Mill Hill (7) Palo Alto Office December 2016 182,676 150.0 Total acquisitions in 2016 968,831 $ 640.8 _____________ (1) Represents purchase price before certain credits, prorations and closing costs. (2) The property consists of stages, production office and support space on 15 acres near Sunset Gower Studios and Sunset Bronson Studios. The purchase price above does not include equipment purchased by the Company for $2.8 million , which was transacted separately from the studio acquisition. In April 2017, the Company drew $150.0 million under the unsecured revolving credit facility to fund the acquisition. (3) On July 1, 2016 the Company purchased a partial interest in land held as a tenancy in common in conjunction with its acquisition of the 11601 Wilshire property. The land interest held as a tenancy in common was accounted for as an equity method investment. On June 15, 2017, the Company purchased the remaining interest, which was fair valued and allocated to land and building. (4) This parcel is adjacent to the Sunset Las Palmas Studios property. (5) Previously owned by an affiliate of Blackstone, the property has served as the Company’s corporate headquarters since its IPO. The Company funded this acquisition with proceeds from the unsecured revolving credit facility. (6) The Company purchased the property through a joint venture with the Canadian Pension Plan Investment Board. The Company has a 55% ownership interest in the consolidated joint venture. In conjunction with the acquisition, the joint venture closed a secured non-recourse loan in the amount of $101.0 million . (7) The Company funded this acquisition with proceeds from the unsecured revolving credit facility. The Company’s acquisitions in 2017 did not meet the definition of a business and were therefore accounted for as asset acquisitions. In accordance with asset acquisitions, the purchase price includes capitalized acquisition costs. The following table represents the Company’s final aggregate purchase price accounting, as of the respective acquisition dates, for each of the Company’s acquisitions completed in 2017: Sunset Las Palmas Studios (1) 11601 Wilshire land 6666 Santa Monica Total Investment in real estate $ 202,723 $ 50,034 $ 3,091 $ 255,848 Deferred leasing costs and in-place lease intangibles (2) 1,741 — 145 1,886 Total assets assumed $ 204,464 $ 50,034 $ 3,236 $ 257,734 _____________ (1) The purchase price allocation includes equipment purchased by the Company of $2.8 million . (2) Represents weighted-average amortization period of 1.2 years. The following table represents the final purchase price accounting for each of the Company’s acquisitions completed in 2016: 11601 Wilshire Hill7 Page Mill Hill Total Investment in real estate, net $ 292,382 $ 173,967 $ 131,402 $ 597,751 Land interest (1) 7,836 — — 7,836 Above-market leases (2) 167 — 307 474 Below-market ground leases (3) 212 — 12,125 12,337 Deferred leasing costs and lease intangibles (4) 13,884 7,617 14,697 36,198 Below-market leases (5) (6,562 ) (1,417 ) (8,636 ) (16,615 ) Net asset and liabilities assumed $ 307,919 $ 180,167 $ 149,895 $ 637,981 _____________ (1) Represents the fair value of the Company’s interest in the land which was included in investment in unconsolidated entities in the Consolidated Balance Sheets at December 31, 2016. On June 15, 2017, the Company purchased the remaining interest, which was fair valued and allocated to land and building. Refer to the 2017 acquisitions above for details. (2) Represents weighted-average amortization period of 5.4 years. (3) Represents weighted-average amortization period of 33.2 years. (4) Represents weighted-average amortization period of 5.8 years. (5) Represents weighted-average amortization period of 6.4 years. Dispositions The following table summarizes the properties sold in 2017, 2016 and 2015. These properties were considered non-strategic to the Company’s portfolio: Property Month of Disposition Square Feet Sales Price (1) (in millions) 222 Kearny February 2017 148,797 $ 51.8 3402 Pico March 2017 50,687 35.0 Pinnacle I and Pinnacle II (2) November 2017 623,777 350.0 Total dispositions in 2017 823,261 $ 436.8 Bayhill Office Center January 2016 554,328 $ 215.0 Patrick Henry April 2016 70,520 19.0 One Bay Plaza June 2016 195,739 53.4 12655 Jefferson November 2016 100,756 80.0 Total dispositions in 2016 (3) 921,343 $ 367.4 First Financial March 2015 223,679 $ 89.0 Bay Park Plaza September 2015 260,183 90.0 Total dispositions in 2015 (4) 483,862 $ 179.0 _____________ (1) Represents gross sales price before certain credits, prorations and closing costs. (2) The consolidated joint venture that owned Pinnacle I and Pinnacle II sold the properties to affiliates of Blackstone. In conjunction with the sale, the $216.0 million debt secured by these properties was assumed by the purchasers. (3) Excludes the sale of an option to acquire land at 9300 Culver on December 6, 2016. (4) Excludes the 45% ownership interest in 1455 Market completed on January 7, 2015. The disposition of these properties resulted in gains of $45.6 million , $ 30.4 million and $30.5 million for the years ended December 31, 2017 , 2016 and 2015, respectively. Included in gains on sale of real estate line item on the Consolidated Statements of Operations in 2016 is a gain of $7.5 million related to a sale of an option to purchase land at 9300 Culver. Held for sale As of December 31, 2017 , the Company had four properties that met the criteria to be classified as held for sale. The following table summarizes properties classified as held for sale as of December 31, 2017: Property Purchase and Sale Executed Square Feet Sales Price (1) (in millions) 2180 Sand Hill November 2017 45,613 $ 82.5 2600 Campus Drive (building 6 of Peninsula Office Park) December 2017 63,050 22.5 Embarcadero Place December 2017 197,402 136.0 9300 Wilshire December 2017 61,422 13.8 Total 367,487 $ 254.8 ____________ (1) Represents gross sales price before certain credits, prorations and closing costs. As of December 31, 2016 , the Company had eight properties that met the criteria to be classified as held for sale which includes the properties sold during 2017. The following table summarizes the components of assets and liabilities associated with real estate held for sale as of: December 31, 2017 December 31, 2016 ASSETS Investment in real estate, net $ 204,895 $ 580,261 Accounts receivable, net 85 183 Straight-line rent receivables, net 2,234 8,849 Deferred leasing costs and lease intangible assets, net 4,063 23,078 Prepaid expenses and other assets, net 58 2,803 Assets associated with real estate held for sale $ 211,335 $ 615,174 LIABILITIES Notes payable, net $ — $ 214,684 Accounts payable and accrued liabilities 782 8,816 Lease intangible liabilities, net 95 6,890 Security deposits and prepaid rent 1,339 6,233 Liabilities associated with real estate held for sale $ 2,216 $ 236,623

Deferred Leasing Costs and Leas

Deferred Leasing Costs and Lease Intangibles, net	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Deferred Leasing Costs and Lease Intangibles, net	Deferred Leasing Costs and Lease Intangibles, net The following summarizes the Company’s deferred leasing costs and lease intangibles, net as of December 31, 2017 December 31, 2016 Above-market leases $ 19,222 $ 23,075 Accumulated amortization (15,731 ) (12,645 ) Above-market leases, net 3,491 10,430 Deferred leasing costs and in-place lease intangibles 311,599 343,807 Accumulated amortization (132,426 ) (129,830 ) Deferred leasing costs and in-place lease intangibles, net 179,173 213,977 Below-market ground leases 68,388 68,601 Accumulated amortization (6,498 ) (4,079 ) Below-market ground leases, net 61,890 64,522 Deferred leasing costs and lease intangible assets, net (1) $ 244,554 $ 288,929 Below-market leases $ 105,233 $ 127,950 Accumulated amortization (56,265 ) (55,689 ) Below-market leases, net 48,968 72,261 Above-market ground leases 1,095 1,095 Accumulated amortization (133 ) (89 ) Above-market ground leases, net 962 1,006 Lease intangible liabilities, net (1) $ 49,930 $ 73,267 _____________ (1) Excludes balances related to properties that have been classified as held for sale. The Company recognized the following amortization related to deferred leasing costs and lease intangibles: For the Year Ended December 31, 2017 2016 2015 Above-market leases (1) $ (6,953 ) $ (11,259 ) $ (12,534 ) Below-market leases (1) 25,015 30,993 34,607 Deferred leasing costs and in-place lease intangibles (2) (72,883 ) (84,492 ) (91,965 ) Above-market ground leases (3) 43 43 46 Below-market ground leases (3) (2,548 ) (2,203 ) (1,688 ) _____________ (1) Amortization is recorded in revenues in the Consolidated Statements of Operations. (2) Amortization is recorded in depreciation and amortization expenses and office rental revenues in the Consolidated Statements of Operations. (3) Amortization is recorded in office operating expenses in the Consolidated Statements of Operations. The following table provides information regarding the Company’s estimated amortization of deferred leasing costs and lease intangibles as of December 31, 2017 : For the Year Ended December 31, Above-market lease Deferred lease cost and in-place lease intangibles Below-market ground lease Below-market lease Above-market ground lease 2018 $ (1,529 ) $ (41,300 ) $ (2,410 ) $ 14,713 $ 43 2019 (1,014 ) (31,533 ) (2,410 ) 11,317 43 2020 (466 ) (22,966 ) (2,410 ) 8,514 43 2021 (327 ) (18,224 ) (2,410 ) 6,084 43 2022 (106 ) (13,068 ) (2,410 ) 3,575 43 Thereafter (49 ) (52,082 ) (49,840 ) 4,765 747 Total (1) $ (3,491 ) $ (179,173 ) $ (61,890 ) $ 48,968 $ 962 _____________ (1) Excludes balances related to properties that have been classified as held for sale.

Notes Payable, net

Notes Payable, net	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Notes Payable, net	Notes Payable, net The following table sets forth information with respect to the amounts included in notes payable, net as of: December 31, 2017 December 31, 2016 Interest Rate (1) Contractual Maturity Date UNSECURED NOTES PAYABLE Unsecured Revolving Credit Facility (2) $ 100,000 $ 300,000 LIBOR + 1.15% to 1.85% 4/1/2019 (3) 5-Year Term Loan due April 2020 (2)(4) 300,000 450,000 LIBOR + 1.30% to 2.20% 4/1/2020 5-Year Term Loan due November 2020 (2) 75,000 175,000 LIBOR + 1.30% to 2.20% 11/17/2020 7-Year Term Loan due April 2022 (2)(5) 350,000 350,000 LIBOR + 1.60% to 2.55% 4/1/2022 7-Year Term Loan due November 2022 (2)(6) 125,000 125,000 LIBOR + 1.60% to 2.55% 11/17/2022 Series A Notes 110,000 110,000 4.34% 1/2/2023 Series E Notes 50,000 50,000 3.66% 9/15/2023 Series B Notes 259,000 259,000 4.69% 12/16/2025 Series D Notes 150,000 150,000 3.98% 7/6/2026 Registered Senior Notes (7) 400,000 — 3.95% 11/1/2027 Series C Notes 56,000 56,000 4.79% 12/16/2027 TOTAL UNSECURED NOTES PAYABLE 1,975,000 2,025,000 SECURED NOTES PAYABLE Rincon Center (8)(9) 98,392 100,409 5.13% 5/1/2018 Sunset Gower Studios/Sunset Bronson Studios 5,001 5,001 LIBOR + 2.25% 3/4/2019 (3) Met Park North (10) 64,500 64,500 LIBOR + 1.55% 8/1/2020 10950 Washington (8) 27,418 27,929 5.32% 3/11/2022 Element LA 168,000 168,000 4.59% 11/6/2025 Hill7 (11) 101,000 101,000 3.38% 11/6/2028 Pinnacle I (12) — 129,000 3.95% 11/7/2022 Pinnacle II (12) — 87,000 4.30% 6/11/2026 TOTAL SECURED NOTES PAYABLE 464,311 682,839 TOTAL NOTES PAYABLE 2,439,311 2,707,839 Held for sale balances (12) — (216,000 ) Unamortized deferred financing costs and loan discounts (13) (17,931 ) (18,513 ) TOTAL NOTES PAYABLE, NET $ 2,421,380 $ 2,473,326 _____________ (1) Interest rate with respect to indebtedness is calculated on the basis of a 360 -day year for the actual days elapsed. Interest rates are as of December 31, 2017 , which may be different than the interest rates as of December 31, 2016 for corresponding indebtedness. (2) The Company has the option to make an irrevocable election to change the interest rate depending on the Company’s credit rating. As of December 31, 2017 , no such election had been made. (3) The maturity date may be extended once for an additional one -year term. (4) In July 2016, $300.0 million of the term loan was effectively fixed at 2.75% to 3.65% per annum through the use of two interest rate swaps. See Note 6 for details. (5) In July 2016, the outstanding balance of the term loan was effectively fixed at 3.36% % to 4.31% per annum through the use of two interest rate swaps. See Note 6 for details. (6) In June 2016, the outstanding balance of the term loan was effectively fixed at 3.03% to 3.98% per annum through the use of an interest rate swap. See Note 6 for details. (7) On October 2, 2017, the Company completed an underwritten public offering of $400.0 million of senior notes, which were issued at 99.815% of par. (8) Monthly debt service includes annual debt amortization payments based on a 30 -year amortization schedule with a balloon payment at maturity. (9) On February 1, 2018, the Company repaid the full outstanding balance of the mortgage loan secured by our Rincon Center property. (10) This loan bears interest only. Interest on the full loan amount has been effectively fixed at 3.71 % per annum through use of an interest rate swap. See Note 6 for details. (11) The Company has a 55% ownership interest in the consolidated joint venture that owns the Hill7 property. The full amount of the loan is shown. This loan bears interest only at 3.38% until November 6, 2026, at which time the interest rate will increase and monthly debt service will include principle payments with a balloon payment at maturity. (12) On November 16, 2017, the Company sold its ownership interest in the consolidated joint venture that owned Pinnacle I and Pinnacle II. The debt balances related to these properties were classified as held for sale at December 31, 2016. (13) Excludes deferred financing costs related to properties held for sale and amounts related to establishing the Company’s unsecured revolving credit facility. Current Year Activity On November 16, 2017, the consolidated joint venture that owned Pinnacle I and Pinnacle II sold the properties to certain affiliates of Blackstone for $350.0 million , before credits, prorations and closing costs, including the assumption of $216.0 million of secured notes payable. The loan balance related to these properties as of December 31, 2016 is reflected in liabilities associated with real estate held for sale in the Consolidated Balance Sheets. The Company used proceeds from the sale and cash on hand to repay $100.0 million of the Company's 5 -year term loan due November 2020. On October 2, 2017, the operating partnership completed an underwritten public offering of $400.0 million senior notes due November 1, 2027. The net proceeds from the offering, after deducting the underwriting discounts and offering expenses, were approximately $396.7 million and was used to repay $150.0 million of the Company’s 5 -year term loan due April 2020 with the remainder of the net proceeds, together with cash on hand, used to repay $250.0 million outstanding under the Company’s unsecured revolving credit facility. Indebtedness The Company presents its financial statements on a consolidated basis. Notwithstanding such presentation, except to the extent expressly indicated, such as in the case of the project financing for Sunset Gower Studios and Sunset Bronson Studios, the Company’s separate property-owning subsidiaries are not obligors of or under the debt of their respective affiliates and each property-owning subsidiary’s separate liabilities do not constitute obligations of its respective affiliates. Loan agreements include events of default that the Company believes are usual for loan and transactions of this type. As of the date of this filing, there have been no events of default associated with the Company’s loans. Certain loan agreements require that some or all receipts collected from properties are deposited in lockbox accounts under the control of the lenders to fund reserves such as capital improvements, taxes, insurance, debt service and operating expenditures. Included in restricted cash on the Company’s Consolidated Balance Sheets at December 31, 2017 and December 31, 2016 are lockbox and reserve funds as follows: Property December 31, 2017 December 31, 2016 Rincon Center $ 14,220 $ 16,291 Element LA 3,581 2,627 Hill7 2,392 1,643 10950 Washington 1,406 1,249 Pinnacle I — 1,811 Pinnacle II — 1,382 Total $ 21,599 $ 25,003 The following table provides information regarding the Company’s future minimum principal payments due on the Company’s notes payable (before the impact of extension options, if applicable) as of December 31, 2017 : For the Year Ended December 31, Annual Principal Payments 2018 $ 98,930 2019 105,569 2020 440,095 2021 632 2022 500,085 Thereafter 1,294,000 Total $ 2,439,311 Senior Unsecured Notes Payable Registered Senior Notes On October 2, 2017, our operating partnership completed an underwritten public offering of $400.0 million in senior notes due November 1, 2027. The notes were issued at 99.815% of par, with a coupon of 3.95% . The notes are fully and unconditionally guaranteed by the Company. Term Loan Agreement On November 17, 2015, the operating partnership entered into a term loan credit agreement with a group of lenders for an unsecured $175.0 million 5 -year delayed draw term loan with a maturity date of November 2020 (“ 5 -Year Term Loan due November 2020”) and an unsecured $125.0 million 7 -year delayed draw term loan with a maturity date of November 2022 (“ 7 -Year Term Loan due November 2022”). These term loans were fully drawn on May 3, 2016. Interest on the term loan agreement is generally to be paid based upon, at our option, either (i) LIBOR plus the applicable LIBOR margin or (ii) a specified base rate plus the applicable base rate margin, dependent on the operating partnership’s leverage ratio. The applicable LIBOR margin will range from 1.30% to 2.20% for the 5 -Year Term Loan due November 2020, depending on our Leverage Ratio (as defined in the term loan agreement) and 1.60% to 2.55% for the 7 -Year Term Loan due November 2022, depending on our Leverage Ratio (as defined in the term loan agreement). Beginning on February 13, 2016, each term loan is subject to an unused commitment fee of .20% . The operating partnership has the right to terminate or reduce unused commitments under either term loan in the term loan agreement without penalty or premium. Subject to the satisfaction of certain conditions, the operating partnership has the right to increase the availability of either or both of the term loans so long as the aggregate commitments under both term loans do not exceed $475.0 million. If the Company obtains a credit rating for the Company’s senior unsecured long-term indebtedness, the operating partnership may make an irrevocable election to change the interest rate. During 2016, its senior unsecured long-term indebtedness was assigned an investment grade rating. The Company has not made the credit rating election. Credit Facility Agreement The operating partnership maintains and periodically amends its credit facility agreement with a group of lenders. On April 1, 2015, the agreement was amended and restated to, among other things, (i) extend the maturity date of the unsecured revolving credit facility with a one -year extension option, (ii) increase available revolving credit from $300.0 million to $400.0 million, (iii) increase the five -year term loan from $150.0 million to $550.0 million and extend the maturity date to April 2020 (“ 5 -Year Term Loan due April 2020”) and (iv) add a $350.0 million seven -year term loan with a maturity date of April 2022 (“ 7 -Year Term Loan due April 2022”). On November 17, 2015, the operating partnership amended and restated the credit facility agreement (“Amended and Restated Credit Facility Agreement”) to align certain terms therein with the less restrictive terms of the term loan agreement. The 5 -Year Term Loan due April 2020 and the 7 -Year Term Loan due April 2022 were used towards the EOP Acquisition. The unsecured revolving credit facility is available for various purposes, including payment of redevelopment and development costs incurred in connection with properties owned by the operating partnership or any subsidiary, to finance capital expenditures and the repayment of indebtedness of the Company, the operating partnership and its subsidiaries, to provide for general working capital needs of the Company, the operating partnership and its subsidiaries, and for general corporate purposes of the Company, the operating partnership and its subsidiaries. Interest on the unsecured revolving credit facility is generally to be paid based upon, at our option, either (i) LIBOR plus the applicable LIBOR margin or (ii) a specified base rate plus the applicable base rate margin, dependent on the operating partnership’s leverage ratio. Unused amounts under the Amended and Restated Credit Facility Agreement are not subject to a separate fee. Subject to the satisfaction of certain conditions and lender commitments, the operating partnership may increase the availability of the credit facility agreement so long as the aggregate commitments under the unsecured revolving credit facility do not exceed $2.0 billion. If the Company obtains a credit rating for the Company’s senior unsecured long-term indebtedness, the operating partnership may make an irrevocable election to change the interest rate and facility fee. During 2016, our senior unsecured long-term indebtedness was assigned an investment grade rating. The Company has not made the credit rating election. The operating partnership continues to be the borrower under the Amended and Restated Credit Facility Agreement, and the Company and all subsidiaries that own unencumbered properties will continue to provide guarantees unless the Company obtains and maintains a credit rating of at least BBB- from S&P or Baa3 from Moody’s, in which case such guarantees are not required except under limited circumstances. The following table summarizes borrowing capacity and outstanding borrowings under the unsecured revolving credit facility as of: December 31, 2017 December 31, 2016 Outstanding borrowings (1) $ 100,000 $ 300,000 Remaining borrowing capacity (1) 300,000 100,000 Total borrowing capacity $ 400,000 $ 400,000 Interest rate (2) LIBOR + 1.15% to 1.85% Facility fee-annual rate (2) 0.20% or 0.35% Contractual maturity date (3) 4/1/2019 _________________ (1) On January 30, 2018, the Company borrowed an additional $100.0 million bringing the total outstanding borrowings to $200.0 million . (2) The rate is based on the operating partnership’s leverage ratio. (3) The maturity date may be extended once for an additional one -year term. Guaranteed Senior Notes On November 16, 2015, the operating partnership entered into a note purchase agreement with various purchasers, which provides for the private placement of $425.0 million of guaranteed senior notes by the operating partnership, of which (i) $110.0 million are designated as 4.34% Series A guaranteed senior notes due January 2, 2023 (the “Series A Notes”), (ii) $259.0 million are designated as 4.69% Series B guaranteed senior notes due December 16, 2025 (the “Series B Notes”) and (iii) $56.0 million are designated as 4.79% Series C guaranteed senior notes due December 16, 2027 (the “Series C Notes”). These notes were issued on December 16, 2015 and upon issuance, the notes pay interest semi-annually on the 16th day of June and December in each year until their respective maturities. On July 6, 2016, the Company entered into a private placement of debt for $150.0 million of 3.98% guaranteed senior notes due July 6, 2026 (the “Series D Notes”). Upon issuance, the notes pay interest semi-annually on the 6th day of January and July in each year until maturity. The Company also secured an additional $ 50.0 million of funds from a private placement of 3.66% guaranteed senior notes due September 15, 2023 (the “Series E Notes”), which were drawn on September 15, 2016. Upon issuance, the notes pay interest semi-annually on the 15th day of March and September in each year until maturity. The operating partnership may prepay at any time all or, from time to time, any part of the guaranteed senior notes in an amount not less than 5% of the aggregate principal amount of any series of guaranteed senior notes then outstanding in the case of a partial prepayment, at 100% of the principal amount so prepaid plus a make-whole premium. The operating partnership’s obligations under guaranteed senior notes will be fully and unconditionally guaranteed by the Company. Subsidiaries of the Company will also issue unconditional guarantees upon the occurrence of certain conditions, including such subsidiaries providing guarantees under the Amended and Restated Credit Facility Agreement, by and among the operating partnership, the financial institutions party thereto, and Wells Fargo Bank, National Association as administrative agent. Debt Covenants The operating partnership’s ability to borrow under the unsecured notes payable remains subject to ongoing compliance with financial and other covenants as defined in their respective agreements. Certain financial covenant ratios are subject to change in the occurrence of material acquisitions as defined in the respective agreements. Other covenants include certain limitations on dividend payouts and distributions, limits on certain types of investments outside of the operating partnership’s primary business and other customary affirmative and negative covenants. The following table summarizes existing covenants and their covenant levels, when considering the most restrictive term: Covenant Ratio Covenant Level Leverage ratio less than 60% Unencumbered leverage ratio less than 60% Fixed charge coverage ratio greater than 1.5x Secured indebtedness leverage ratio less than 45% Unsecured interest coverage ratio greater than 2x The operating partnership was in compliance with its financial covenants as of December 31, 2017 . Repayment Guarantees Registered Senior Notes The Company has fully and unconditionally guaranteed the operating partnership’s registered senior notes of $400.0 million due November 1, 2027. Sunset Gower Studios and Sunset Bronson Studios Loan In connection with the loan secured by the Sunset Gower Studios and Sunset Bronson Studios properties, the Company has guaranteed in favor of and promised to pay to the lender 19.5% of the principal payable under the loan in the event the borrower, a wholly-owned entity of the operating partnership, does not do so. At December 31, 2017 , the outstanding balance was $5.0 million , which results in a maximum guarantee amount for the principal under this loan of $1.0 million . Furthermore, the Company agreed to guarantee the completion of the construction improvements, including tenant improvements, as defined in the agreement, in the event of any default of the borrower. If the borrower fails to complete the remaining required work, the guarantor agrees to perform timely all of the completion obligations, as defined in the agreement. As of the date of this filing, there has been no event of default associated with this loan. Other Loans Although the rest of the operating partnership’s loans are secured and non-recourse, the operating partnership provides limited customary secured debt guarantees for items such as voluntary bankruptcy, fraud, misapplication of payments and environmental liabilities. Interest Expense The following table represents a reconciliation from the gross interest expense to the amount on the interest expense line item in the Consolidated Statements of Operations: Year Ended December 31, 2017 2016 2015 Gross interest expense (1) $ 94,660 $ 82,887 $ 52,437 Capitalized interest (10,655 ) (11,307 ) (6,516 ) Amortization of deferred financing costs and loan discount/premium, net 6,032 4,464 4,746 Interest expense $ 90,037 $ 76,044 $ 50,667 _________________ (1) Includes interest on the Company’s notes payable and hedging activities and extinguishment costs related to partial paydowns in our term loans of $1.1 million during the year ended December 31, 2017.

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company enters into derivatives in order to hedge interest rate risk. As of December 31, 2017 and 2016 , the Company had six interest rate swaps with aggregate notional amounts of $839.5 million . These derivatives were designated as effective cash flow hedges for accounting purposes. The Company’s derivatives are classified as Level 2 and their fair values are derived from estimated values obtained from observable market data for similar instruments. 5 -Year Term Loan due April 2020 and 7 -Year Term Loan due April 2022 On April 1, 2015, the Company effectively hedged $300.0 million of the 5 -Year Term Loan due April 2020 through two interest rate swaps, each with a notional amount of $150.0 million , which, effective as of May 1, 2015, swapped one-month LIBOR to a fixed rate of 1.36% through the loan’s maturity. Therefore, the interest rate is effectively fixed at 2.66% to 3.56% , depending on the operating partnership’s leverage ratio. The unhedged portion bears interest at a rate equal to one-month LIBOR plus 1.30% to 2.20% , depending on the operating partnership’s leverage ratio. The Company also effectively hedged its $350.0 million 7 -Year Term Loan due April 2022 through two interest rate swaps, which, effective as of May 1, 2015, swapped one-month LIBOR to a fixed rate of 1.61% through the loan’s maturity. Therefore, the interest rate is effectively fixed at 3.21% to 4.16% , depending on the operating partnership’s leverage ratio. In July 2016, the derivatives described above were amended to include a 0.00% floor to one-month LIBOR and then de-designated the original swap and designated the amended swap as a hedge in order to minimize the ineffective portion of the original derivatives. Therefore, the effective interest rate increased to a range of 2.75% to 3.65% with respect to $300.0 million of the 5 -Year Term Loan due April 2020 and 3.36% to 4.31% with respect to the 7 -Year Term Loan due April 2022, in each case per annum. The interest rate within the range is based on the operating partnership’s leverage ratio. The amount included in accumulated other comprehensive income (loss) prior to the de-designation is amortized into interest expense over the remaining original terms of the derivatives. The Company recognized an unrealized loss of $70 thousand and $1.4 million during the years ended December 31, 2017 and 2016 , respectively, reflected on the unrealized loss on ineffective portion of derivatives line item on the Consolidated Statement of Operations. There was no recognized unrealized loss or gain during the year ended December 31, 2015 . 7 -Year Term Loan due November 2022 On May 3, 2016, the Company entered into a derivative with respect to $125.0 million of the 7 -Year Term Loan due November 2022. This derivative became effective on June 1, 2016 and swapped one-month LIBOR, which includes a 0.00% floor, to a fixed rate of 1.43% through the loan’s maturity. Met Park North On July 31, 2013, the Company closed a seven -year loan totaling $64.5 million with Union Bank, N.A., secured by the Met Park North property. The loan bears interest at a rate equal to one-month LIBOR plus 1.55% . The full loan is subject to an interest rate contract that swaps one-month LIBOR to a fixed rate of 2.16% through the loan’s maturity on August 1, 2020. Overall The fair market value of derivatives is presented on a gross basis in prepaid and other expenses, net and derivative liabilities line items on the Consolidated Balance Sheets. The derivative assets as of December 31, 2017 and 2016 were $12.6 million and $5.9 million , respectively. The derivative liabilities as of December 31, 2017 and 2016 were $0.3 million and $1.3 million , respectively. The Company reclassifies into earnings in the same period during which the hedged forecasted transaction affects earnings. As of December 31, 2017 , the Company expects $1.5 million of unrealized gain included in accumulated other comprehensive loss will be reclassified to interest expense in the next 12 months.

Future Minimum Base Rents and L

Future Minimum Base Rents and Lease Payments Future Minimum Rents	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
Future Minimum Base Rents and Lease Payments Future Minimum Rents	Future Minimum Base Rents and Lease Payments Future Minimum Rents The Company’s properties are leased to tenants under operating leases with initial term expiration dates ranging from 2018 to 2033. The following table summarizes the future minimum base rents (excluding tenant reimbursements for operating expenses and termination fees related to tenants exercising early termination options) for properties as of December 31, 2017 : Year ended Non-cancellable Subject to early termination options Total (1)(2) 2018 $ 476,777 $ 4,002 $ 480,779 2019 445,032 11,775 456,807 2020 376,361 20,232 396,593 2021 315,588 32,772 348,360 2022 246,997 45,437 292,434 Thereafter 805,449 124,383 929,832 Total $ 2,666,204 $ 238,601 $ 2,904,805 _____________ (1) Excludes rents under leases at the Company’s media and entertainment properties with terms of one year or less. (2) Includes properties classified as held for sale as of December 31, 2017. Future Minimum Lease Payments The following table summarizes the Company’s ground lease terms related to properties that are held subject to long-term non-cancellable ground lease obligations as of December 31, 2017 : Property Expiration Date Notes 3400 Hillview 10/31/2040 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent until October 31, 2017 is the lesser of 10% of Fair Market Value (“FMV”) of the land or $1.0 million grown at 75% of the cumulative increases in consumer price index (“CPI”) from October 1989. Thereafter, minimum annual rent is the lesser of 10% of FMV of the land or the minimum annual rent as calculated as of November 1, 2017 plus 75% of subsequent cumulative CPI changes. Percentage annual rent is gross income multiplied by 24.125%. This lease was prepaid through October 31, 2017. 9300 Wilshire 8/14/2032 The ground rent is the greater of minimum annual rent or percentage annual rent. Percentage annual rent is gross income multiplied by 6%. The property related to this ground lease is expected to be sold in the first quarter of 2018. Clocktower Square 9/26/2056 The ground rent is minimum annual rent (adjusted every 10 years) plus 25% of adjusted gross income (“AGI”) less minimum annual rent. Del Amo 6/30/2049 Rent under the ground sublease is $1.00 per year, with the sublessee being responsible for all impositions, insurance premiums, operating charges, maintenance charges, construction costs and other charges, costs and expenses that arise or may be contemplated under any provisions of the ground sublease. Foothill Research Center 6/30/2039 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent is the lesser of 10% of FMV of the land or the previous year’s minimum annual rent plus 75% of CPI increase. Percentage annual rent is gross income multiplied by 24.125%. 3176 Porter (formerly Lockheed) 7/31/2040 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent is the lesser of 10% of FMV of the land or the previous year’s minimum annual rent plus 75% of CPI increase. Percentage annual rent is Lockheed’s base rent multiplied by 24.125%. Metro Center 4/29/2054 Every 10 years rent adjusts to 7.233% of FMV of the land (since 2008) and adjusts to reflect the change in CPI from the preceding FMV adjustment date (since 2013). Page Mill Center 11/30/2041 The ground rent is minimum annual rent (adjusted on 1/1/2019 and 1/1/2029) plus 25% of AGI, less minimum annual rent. Page Mill Hill 11/17/2049 The ground rent is minimum annual rent (adjusted every 10 years) plus 60% of the average of the percentage annual rent for the previous 7 lease years. Palo Alto Square 11/30/2045 The ground rent is minimum annual rent (adjusted every 10 years starting 1/1/2022) plus 25% of AGI less minimum annual rent. Sunset Gower Studios 3/31/2060 Every 7 years rent adjusts to 7.5% of FMV of the land. Techmart 5/31/2053 Rent subject to a 10% increase every 5 years. Contingent rental expense is recorded in the period in which the contingent event becomes probable. The following table summarizes rental expense for ground leases and a corporate office lease: For the Year Ended December 31, 2017 2016 2015 Contingent rental expense $ 8,775 $ 8,651 $ 3,843 Minimum rental expense 12,412 12,085 9,196 The following table provides information regarding the Company’s future minimum lease payments for its ground leases (before the impact of extension options, if applicable) as of December 31, 2017 : For the Year Ended December 31, Ground Leases (1)(2) 2018 $ 14,111 2019 14,161 2020 14,161 2021 14,161 2022 14,161 Thereafter 382,070 Total $ 452,825 _____________ (1) In situations where ground lease obligation adjustments are based on third-party appraisals of fair market land value, CPI adjustments and/or percentage of gross income that exceeds the minimum annual rent, the future minimum lease amounts above include the lease rental obligations in effect as of December 31, 2017 . (2) Balance includes future minimum ground lease obligation for 9300 Wilshire which is expected to be sold in the first quarter of 2018.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company’s financial assets and liabilities measured and reported at fair value on a recurring basis include the following as of: December 31, 2017 December 31, 2016 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivative assets (1) $ — $ 12,586 $ — $ 12,586 $ — $ 5,935 $ — $ 5,935 Derivative liabilities — 265 — 265 — 1,303 — 1,303 _____________ (1) Included in the prepaid expenses and other assets, net line item in the Consolidated Balance Sheets. Other Financial Instruments The carrying values of cash and cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities are reasonable estimates of fair value, using Level 1 inputs, because of the short-term nature of these instruments. Fair values for notes payable are estimates based on rates currently prevailing for similar instruments of similar maturities using Level 2 inputs. The table below represents the carrying value and fair value of the Company’s notes payable as of: December 31, 2017 December 31, 2016 Carrying Value Fair Value Carrying Value Fair Value Unsecured notes payable (1)(2) $ 1,974,278 $ 1,960,560 $ 2,025,000 $ 2,011,210 Secured notes payable (3) 464,311 458,441 682,839 669,924 _____________ (1) Amounts represent notes payable excluding unamortized deferred financing costs. (2) The $400.0 million senior registered notes were issued at a discount. The discount, net of amortization was $722 thousand at December 31, 2017 and is included within unsecured notes payable. (3) Includes balances related to properties that have been classified as held for sale.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation The Company’s 2010 Incentive Plan permits the Company’s board of directors (“the Board”) to grant, among other things, restricted stock, restricted stock units and performance-based awards. At our annual meeting of stockholders on May 24, 2017 , stockholders approved an amended and restatement of the 2010 Incentive Plan (the “2010 Plan”), which included an increase in the maximum number of shares that may be issued or awarded. Each restricted share, restricted stock unit and common share issued reduces the share reserve by 5.14 shares. As of December 31, 2017 , 3,961,867 common shares were available for grant under the 2010 Plan. The calculation of shares available for grant is determined after taking into account unvested restricted stock, unvested RSUs, awards under our one-time retention performance-based awards, and awards under our outstanding outperformance programs, assuming the maximum bonus pool eligible ultimately is earned and based on a stock price of $34.25 . The Board awards restricted shares to non-employee Board members on an annual basis as part of such Board members’ annual compensation and to newly elected non-employee board members in accordance with the Non-Employee Director Compensation Program. The time-based awards are generally issued in the second quarter, in conjunction with the director’s election to the Board and the individual share awards vest in equal annual installments over the applicable service vesting period, which is three years . The Board awards time-based restricted shares to employees on an annual basis as part of the employees’ annual compensation. The time-based awards are generally issued in the fourth quarter, and the individual share awards vest in equal annual installments over the applicable service vesting period, which is generally three years . Additionally, certain restricted share awards are subject to a mandatory holding period upon vesting if the grantee is a named executive officer. The compensation committee of our Board (“Compensation Committee”) annually adopts a Hudson Pacific Properties, Inc. Outperformance Program (“OPP Plan”) under our 2010 Plan. With respect to OPP Plan awards granted through 2017 , to the extent an award is earned following the completion of a three -year performance period, 50% of the earned award will vest in full at the end of the three -year performance period and 25% of the earned award will vest in equal annual installments over the two years thereafter, subject to the participant’s continued employment. OPP Plan awards are settled in common stock and in the case of certain executives, awards are settled in performance units in our operating partnership. In February 2017, the Compensation Committee adopted the 2017 OPP Plan. The 2017 OPP Plan is substantially similar to the previous OPP Plans except for (i) the performance period is January 1, 2017 to December 31, 2019 (ii) the maximum bonus pool is $20.0 million and (iii) the two -year post-performance vesting period was replaced with a two -year mandatory holding period upon vesting. In December 2015, the Compensation Committee of the Board awarded a one-time special retention award to certain executives. The grants consist of time-based awards and performance-based awards. The time-based awards vest in equal 25% installments over a four -year period, subject to the participant’s continued employment. The performance-based awards vest over a four -year period, subject to the achievement of applicable performance goals and the participant’s continued employment. Time-Based Awards The stock-based compensation is valued based on the quoted closing price of the Company’s common stock on the applicable grant date and discounted for the hold restriction in accordance with ASC 718. The stock-based compensation is amortized through the final vesting period on a straight-line basis. Forfeitures of awards are recognized as they occur. Performance-Based Awards OPP Plan An award under the OPP Plan is ultimately earned to the extent the Company outperforms a predetermined total shareholder return (“TSR”) goal and/or achieves goals with respect to the outperformance of its peers in a particular REIT index. The ultimate aggregate award cannot exceed the predetermined maximum bonus pool. The following table outlines key components of the 2017 and 2016 OPP Plans: 2017 OPP Plan 2016 OPP Plan Maximum bonus pool, in millions $20.0 $17.5 Performance period 1/1/2017 to 12/31/2019 1/1/2016 to 12/31/2018 The stock-based compensation costs of the OPP Plans were valued in accordance with ASC 718, utilizing a Monte Carlo simulation to estimate the probability of the performance vesting conditions being satisfied. The stock-based compensation is amortized through the final vesting period under a graded vesting expense recognition schedule. Forfeitures of awards are recognized as they occur. The per unit fair value of OPP award granted was estimated on the date of grant using the following assumptions in the Monte Carlo valuation: 2017 2016 2015 Expected price volatility for the Company 24.00% 24.00% 22.00% Expected price volatility for the particular REIT index 17.00% 17.00% 22.00% Risk-free rate 1.47% 1.09% 1.13% Dividend yield 2.30 2.40 1.50 One-Time Retention Awards At the end of each year in the four -year performance period and over the four -year performance period, the ultimate award is earned if the Company outperforms a predetermined TSR goal and/or achieves goals with respect to its outperformance of its peers in a particular REIT index. The stock-based compensation costs were valued in accordance with ASC 718, utilizing a Monte Carlo simulation to estimate the probability of the performance vesting conditions being satisfied. The stock-based compensation is amortized through the final vesting period under a graded vesting expense recognition schedule. Forfeitures of awards are recognized as they occur. The per unit fair value of one-time retention award granted was estimated on the date of grant using the following assumptions in the Monte Carlo valuation: Assumptions Expected price volatility for the Company 23.00% Expected price volatility for the particular REIT index 18.00% Risk-free rate 1.63% Dividend yield 3.20 Summary of Unvested Share Activity The following table summarizes the activity and status of all unvested awards: 2017 2016 2015 Shares Weighted-Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Unvested at January 1 887,179 $ 31.09 827,950 $ 28.92 543,707 $ 26.43 Granted 918,884 34.37 489,826 30.95 629,504 29.01 Vested (705,508 ) 31.42 (430,597 ) 26.75 (335,544 ) 24.80 Canceled (13,369 ) 32.14 — — (9,717 ) 38.17 Unvested at December 31 1,087,186 $ 33.64 887,179 $ 31.09 827,950 $ 28.92 Year Ended December 31, Non-Vested Shares Issued Weighted Average Grant-Date Fair Value Vested Shares Total Vest-Date Fair Value (in thousands) 2017 918,884 $ 34.37 (705,508 ) $ 24,155 2016 489,826 30.95 (430,597 ) 14,736 2015 629,504 29.01 (335,544 ) 9,606 Share-based Compensation Recorded The following table presents the classification and amount recognized for stock-based compensation related to the Company’s awards: For the Year Ended December 31, 2017 2016 2015 Expensed stock compensation (1) $ 15,079 $ 14,144 $ 8,421 Capitalized stock compensation (2) 836 510 411 Total stock compensation (3) $ 15,915 $ 14,654 $ 8,832 _________________ (1) Amounts are recorded in general and administrative expenses in the Consolidated Statements of Operations. (2) Amounts are recorded in deferred leasing costs and lease intangible assets, net and investment in real estate, at cost in the Consolidated Balance Sheets. (3) Amounts are recorded in additional paid-in capital and non-controlling interest—units in the operating partnership in the Consolidated Balance Sheets. As of December 31, 2017 , total unrecognized compensation cost related to unvested share-based payments was $31.2 million , and is expected to be recognized over a weighted-average period of two years.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Hudson Pacific Properties, Inc. The Company calculates basic earnings per share by dividing the net income (loss) available to common stockholders for the period by the weighted average number of common shares outstanding during the period. Hudson Pacific Properties, Inc. calculates diluted earnings per share by dividing the diluted net income (loss) available to common stockholders for the period by the weighted average number of common shares and dilutive instruments outstanding during the period using the treasury stock method or the if-converted method, whichever is more dilutive. Unvested time-based RSUs and unvested OPP awards that contain nonforfeitable rights to dividends are participating securities and are included in the computation of earnings per share pursuant to the two-class method. The following table reconciles the numerator and denominator in computing the Company’s basic and diluted earnings per share for net income (loss) available to common stockholders: For the Year Ended December 31, 2017 2016 2015 Numerator: Basic net income (loss) available to common stockholders $ 67,587 $ 27,218 $ (16,397 ) Effect of dilutive instruments — 451 — Diluted net income (loss) available to common stockholders $ 67,587 $ 27,669 $ (16,397 ) Denominator: Basic weighted average common shares outstanding 153,488,730 106,188,902 85,927,216 Effect of dilutive instruments (1) 394,084 4,180,153 — Diluted weighted average common shares outstanding 153,882,814 110,369,055 85,927,216 Basic earnings per common share $ 0.44 $ 0.26 $ (0.19 ) Diluted earnings per common share $ 0.44 $ 0.25 $ (0.19 ) _____________ (1) The Company includes unvested awards and convertible common units as contingently issuable shares in the computation of diluted earnings per share once the market criteria are met, assuming that the end of the reporting period is the end of the contingency period. Any anti-dilutive securities are excluded from the diluted earnings per share calculation. Hudson Pacific Properties, L.P. The operating partnership calculates basic earnings per share by dividing the net income available to common unitholders for the period by the weighted average number of common units outstanding during the period. The operating partnership calculates diluted earnings per share by dividing the diluted net income available to common unitholders for the period by the weighted average number of common units and dilutive instruments outstanding during the period using the treasury stock method or the if-converted method, whichever is more dilutive. Unvested time-based RSUs and unvested OPP awards that contain nonforfeitable rights to dividends are participating securities and are included in the computation of earnings per unit pursuant to the two-class method. The following table reconciles the numerator and denominator in computing the operating partnership’s basic and diluted earnings per unit for net income (loss) available to common unitholders: For the Year Ended December 31, 2017 2016 2015 Numerator: Basic net income (loss) available to common unitholders $ 67,962 $ 33,066 $ (38,366 ) Effective of dilutive instruments — 451 — Diluted net income (loss) available to common unitholders $ 67,962 $ 33,517 $ (38,366 ) Denominator: Basic weighted average common units outstanding 154,276,773 145,595,246 128,948,077 Effect of dilutive instruments (1) 394,084 1,144,000 — Diluted weighted average common units outstanding 154,670,857 146,739,246 128,948,077 Basic earnings per common unit $ 0.44 $ 0.23 $ (0.30 ) Diluted earnings per common unit $ 0.44 $ 0.23 $ (0.30 ) _____________ (1) The operating partnership includes unvested awards as contingently issuable units in the computation of diluted earnings per unit once the market criteria are met, assuming that the end of the reporting period is the end of the contingency period. Any anti-dilutive securities are excluded from the diluted earnings per unit calculation.

Equity

Equity	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Equity	Equity The table below presents the effect of the Company’s derivatives on accumulated other comprehensive income (“OCI”): Hudson Pacific Properties, Inc. Stockholder’s Equity Non-controlling interests Total Equity Balance at January 1, 2015 $ (2,443 ) $ (218 ) $ (2,661 ) Unrealized loss recognized in OCI due to change in fair value (4,976 ) (2,687 ) (7,663 ) Loss reclassified from OCI into income (as interest expense) 6,338 3,922 10,260 Net change in OCI 1,362 1,235 2,597 Balance at December 31, 2015 (1,081 ) 1,017 (64 ) Unrealized loss recognized in OCI due to change in fair value 4,122 (6,989 ) (2,867 ) Loss reclassified from OCI into income (as interest expense) 6,455 2,354 8,809 Net change in OCI 10,577 (4,635 ) 5,942 Balance at December 31, 2016 9,496 (3,618 ) 5,878 Unrealized loss recognized in OCI due to change in fair value 3,011 18 3,029 Loss reclassified from OCI into income (as interest expense) 4,342 27 4,369 Net change in OCI 7,353 45 7,398 Reclassification related to redemption of common units in the operating partnership (3,622 ) 3,622 — Balance at December 31, 2017 $ 13,227 $ 49 $ 13,276 Non-controlling Interests Common units in the operating partnership Common units of the operating partnership and shares of common stock of the Company have essentially the same economic characteristics, as they share equally in the total net income or loss distributions of the operating partnership. Investors who own common units have the right to cause the operating partnership to repurchase any or all of their common units for cash equal to the then-current market value of one share of common stock or, at the Company’s election, issue shares of the Company’s common stock in exchange for common units on a one-for-one basis. The following table summarizes the ownership of common units, excluding unvested restricted units as of: December 31, 2017 December 31, 2016 December 31, 2015 Company-owned common units in the operating partnership 155,602,508 136,492,235 89,153,780 Company’s ownership interest percentage 99.6 % 93.5 % 61.3 % Non-controlling common units in the operating partnership (1) 569,045 9,450,620 56,296,315 Non-controlling ownership interest percentage (1) 0.4 % 6.5 % 38.7 % _____________ (1) Represents common units held by certain of the Company’s executive officers and directors, certain of their affiliates and other outside investors. The following table summarizes the activity related to common units from January 1, 2016 to December 31, 2017 : Non-controlling interest in common units Balance at January 1, 2016 56,296,315 May redemption (1) (10,117,223 ) July redemption (1) (19,195,373 ) November redemption (1) (17,533,099 ) Balance at December 31, 2016 9,450,620 January redemption (1) (8,881,575 ) Balance at December 31, 2017 569,045 _____________ (1) The common unitholders requested the operating partnership repurchase common units and the Company elected, in accordance with the limited partnership agreement of the operating partnership, to settle in cash to satisfy the redemption. The Company funded the redemptions using the proceeds from registered underwritten public offering of common stock. Performance units are partnership interests in the operating partnership. Each performance unit awarded will be deemed equivalent to an award of one share of common stock under the 2010 Plan, reducing the availability for other equity awards on a one -for-one basis. Under the terms of the performance units, the operating partnership will revalue its assets for tax purposes upon the occurrence of certain specified events, and any increase in valuation from the time of grant until such event will be allocated first to the holders of performance units to equalize the capital accounts of such holders with the capital accounts of common unitholders. Subject to any agreed upon exceptions, once vested and having achieved parity with common unitholders, performance units are convertible into common units in the operating partnership on a one -for-one basis. 6.25% Series A cumulative redeemable preferred units of the operating partnership There are 407,066 Series A preferred units of partnership interest in the operating partnership, or Series A preferred units, which are not owned by the Company. These Series A preferred units are entitled to preferential distributions at a rate of 6.25% per annum on the liquidation preference of $25.00 per unit and became convertible at the option of the holder into common units or redeemable into cash or, at the Company’s election, exchangeable for registered shares of common stock, after June 29, 2013. For a description of the conversion and redemption rights of the Series A preferred units, please see “Description of the Partnership Agreement of Hudson Pacific Properties, L.P. — Material Terms of Our Series A Preferred Units” in the Company’s June 23, 2010 Prospectus. 8.375% Series B cumulative redeemable preferred stock 5,800,000 shares of 8.375% Series B cumulative redeemable preferred stock of Hudson Pacific Properties, Inc., with a liquidation preference of $25.00 per share, $0.01 par value per share, were outstanding in 2014 and until they were redeemed in 2015. Dividends on the Series B preferred stock were cumulative from the date of original issue and payable quarterly on or about the last calendar day of each March, June, September and December at the rate of 8.375% per annum of its $25.00 per share liquidation preference. On December 10, 2015, the Company redeemed its Series B preferred stock in whole for cash at a redemption price of $25.00 per share, plus accrued and unpaid dividends to, but not including, the date of redemption. During the year ended December 31, 2015, the Company recognized a non-recurring non-cash allocation of additional loss for purposes of computing earnings per share of $6.0 million as a reduction to net income available to common stockholders for the Company and common unitholder for the operating partnership for the original issuance costs related to the Series B preferred stock. The following table reconciles the net income (loss) allocated to common stock and operating partnership units on the Consolidated Statements of Equity to the common stock and the common unit net income (loss) allocation on the Consolidated Statements of Operations for the years ended: Hudson Pacific Properties, Inc. Hudson Pacific Properties, L.P. 2017 2016 2015 2017 2016 2015 Net income (loss) allocation for common stock/units on the Consolidated Statements of Equity/Capital $ 68,590 $ 27,984 $ (10,071 ) $ 68,965 $ 33,832 $ (32,040 ) Net income attributable to participating securities (1,003 ) (766 ) (356 ) (1,003 ) (766 ) (356 ) Series B transaction costs allocation — — (5,970 ) — — (5,970 ) Net income (loss) allocation for common stock/units on the Consolidated Statements of Operations $ 67,587 $ 27,218 $ (16,397 ) $ 67,962 $ 33,066 $ (38,366 ) Common Stock Activity The Company has remained capitalized since the initial public offerings through public offerings, its note purchase agreement and continuous offerings under our at-the-market, or ATM, program. The following table summarizes the common stock offering in 2015, 2016 and 2017: Number of Common Shares January 20, 2015 (1) 12,650,000 April 1, 2015 (2) 8,626,311 May 16, 2016 (3) 10,117,223 July 21, 2016 (3) 19,195,373 November 28, 2016 (3) 17,533,099 January 10, 2017 (3) 8,881,575 March 3, 2017 (4) 9,775,000 _____________ (1) Represents a common stock offering of 11,000,000 shares of common stock and the exercise of the underwriters’ option to purchase an additional 1,650,000 shares of our common stock at the public offering price of $31.75 per share. Total proceeds from the public offering, after underwriters’ discount, were approximately $385.6 million (before transaction costs). (2) Represents a common stock issuance in connection with the EOP Acquisition. The issuance of common stock is part of the consideration paid. (3) Proceeds from the offering were used to repurchase common units in the operating partnership. (4) Represents a common stock offering of 9,775,000 shares of common stock. Proceeds from the offering were used to fully repay a $255.0 million balance outstanding under its unsecured revolving credit facility. The Company’s ATM program permits sales of up to $125.0 million of common stock. The Company did not utilize the ATM program during 2017. A cumulative total of $20.1 million has been sold as of December 31, 2017 . The following table summarizes the ATM activity: 2017 2016 2015 Shares of common stock sold during the period — 165,000 — Common stock price ranges N/A $33.54 to $33.95 N/A Share repurchase program On January 20, 2016, the Board authorized a share repurchase program to buy up to $100.0 million of the outstanding common stock of Hudson Pacific Properties, Inc. No share repurchases have been made through December 31, 2017 . Dividends During the year ended December 31, 2017 , the Company declared dividends on its common stock and non-controlling interest in common units in the operating partnership of $1.000 per share and unit. The Company also declared dividends on its Series A preferred partnership interests of $1.5625 per unit. The fourth quarter 2017 dividends were paid on December 28, 2017 to stockholders and unitholders of record on December 18, 2017 . Taxability of Dividends 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, compensation expense and the basis of depreciable assets and estimated useful lives used to compute depreciation. The Company’s dividends related to its common stock will be classified for U.S. federal income tax purposes as follows (unaudited): Ordinary Dividends Record Date Payment Date Distributions Per Share Total Non-qualified Qualified Capital Gain Distributions (1) Return of Capital 3/20/2017 3/30/2017 $ 0.25000 $ 0.14633 $ 0.14633 $ — $ 0.04023 $ 0.06345 6/20/2017 6/30/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 9/19/2017 9/29/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 12/18/2017 12/28/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 Totals $ 1.00000 $ 0.58532 $ 0.58532 $ — $ 0.16092 $ 0.25380 100 % 58.532 % 16.09 % 25.38 % _____________ (1) $0.03000 of the $0.04023 capital gain distributions should be characterized as unrecaptured Section 1250 gain.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Employment Agreements The Company has entered into employment agreements with certain executive officers, effective January 1, 2016, that provide for various severance and change in control benefits and other terms and conditions of employment. Lease and Subsequent Purchase of Corporate Headquarters from Blackstone On July 26, 2006, the Company’s predecessor, Hudson Capital, LLC, entered into a lease agreement and subsequent amendments with landlord Trizec Holdings Cal, LLC (an affiliate of Blackstone) for the Company’s corporate headquarters at 11601 Wilshire. The Company amended the lease to increase its occupancy to 40,120 square feet commencing on September 1, 2015. On December 16, 2015, the Company entered into an amendment of that lease to expand the space to approximately 42,371 square feet and to extend the term by an additional three years, to a total of ten years, through August 31, 2025. On July 1, 2016, the Company purchased the 11601 Wilshire property from affiliates of Blackstone for $311.0 million (before credits, prorations and closing costs). Michael Nash, a director on the Board, is a senior managing director of an affiliate of Blackstone. Disposal of Pinnacle I and Pinnacle II to certain affiliates of Blackstone On November 16, 2017, the consolidated joint venture that owned Pinnacle I and Pinnacle II sold the properties to certain affiliates of Blackstone for $350.0 million , before credits, prorations and closing costs, including the assumption of $216.0 million of secured notes payable. Michael Nash, a director on the Board, is a senior managing director of an affiliate of Blackstone. Disposal of 222 Kearny to certain affiliates of Farallon Funds On February 14, 2017, the Company sold its 222 Kearny property to a joint venture, a partner of which is an affiliate of the Farallon Funds. Richard B. Fried, a director on the Board, is a managing member of the Farallon Funds. JMG Capital Lease at 11601 Wilshire JMG Capital Management LLC leases approximately 6,638 square feet at the Company’s 11601 Wilshire property pursuant to an eight -year lease at an aggregate rate of approximately $279 thousand annualized rent per year. Jonathan M. Glaser, a director on the Board, is the founder and managing member of JMG Capital Management LLC. JMG Capital Management LLC was a tenant of the property at the time it was purchased by the Company in 2016. During 2017, JMG Capital Management LLC assigned the lease to a third party and as a result is no longer a lessee at our 11601 Wilshire property as of December 31, 2017. Agreement Related to EOP Acquisition On April 1, 2015, the Company completed the EOP Acquisition from certain affiliates of Blackstone, which consisted of 26 high-quality office assets totaling approximately 8.2 million square feet and two development parcels located throughout the Northern California region. The total consideration paid for the EOP Acquisition before certain credits, prorations and closing costs included a cash payment of $1.75 billion and an aggregate of 63,474,791 shares of common stock of Hudson Pacific Properties, Inc. and common units in the operating partnership. In connection with the EOP Acquisition, the Company, the operating partnership and Blackstone entered into a stockholders agreement, which conferred Blackstone certain rights, including the right to nominate up to three of the Company’s directors. Additionally, the Company entered into a registration rights agreement with Blackstone providing for customary registration rights with respect to the equity consideration paid in the EOP Acquisition. Following a common stock offering and common unit repurchase on January 10, 2017, the stockholders agreement and the registration rights agreement automatically terminated on that date. Common Stock Offerings and Common Unit Redemptions On January 10, 2017, the Company, Blackstone and the Farallon Funds completed a public offering of 18,673,808 shares of common stock, consisting of 8,881,575 shares offered by the Company and 9,792,233 shares offered by the selling stockholders. The offering generated net proceeds for the Company and the selling stockholders of approximately $310.9 million and $342.7 million , respectively, before expenses. The Company used the net proceeds that it received from the offering to redeem 8,881,575 common units held by Blackstone and the Farallon Funds. The Company did not receive any proceeds from the sale of the common stock by the selling stockholders in the offerings described above but it paid approximately half of the expenses of the offerings with respect to the shares of common stock sold by the Farallon Funds and all of the expenses with respect to the shares of common stock sold by Blackstone, in each case, other than underwriting discounts, which were borne by the selling stockholders.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal From time to time, the Company is party to various lawsuits, claims and other legal proceedings arising out of, or incident to, the ordinary course of business. Management believes, based in part upon consultation with legal counsel, that the ultimate resolution of all such claims will not have a material adverse effect on the Company’s results of operations, financial position or cash flows. As of December 31, 2017 , the risk of material loss from such legal actions impacting the Company’s financial condition or results from operations has been assessed as remote. Concentrations As of December 31, 2017 , 90% of the Company’s properties were located in California, which exposes the Company to greater economic risks than if it owned a more geographically dispersed portfolio. A significant portion of the Company’s rental revenue is derived from tenants in the media and entertainment and technology industries. As of December 31, 2017 , approximately 16% and 34% of rentable square feet were related to the tenants in the media and entertainment and technology industries, respectively. As of December 31, 2017 , the Company’s 15 largest tenants represented approximately 29% of its rentable square feet and no single tenant accounted for more than 10% . Letters of Credit As of December 31, 2017 , the Company has outstanding letters of credit totaling approximately $2.5 million under the unsecured revolving credit facility. The letters of credit are primarily related to utility company security deposit requirements.

Quarterly Financial Information

Quarterly Financial Information (unaudited)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information (unaudited)	Quarterly Financial Information (unaudited) The tables below present selected quarterly information for 2017 and 2016 for the Company: For the Three Months Ended (1) December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017 Total revenues $ 189,333 $ 190,021 $ 180,500 $ 168,285 Income from operations 43,832 36,160 28,108 28,503 Net income 48,944 14,510 6,954 24,153 Net income attributable to the Company’s stockholders 32,455 11,064 3,553 20,515 Net income attributable to common stockholders’ per share—basic 0.21 0.07 0.02 0.14 Net income attributable to common stockholders’ per share—diluted 0.21 0.07 0.02 0.14 For the Three Months Ended (1) December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016 Total revenues $ 167,198 $ 164,583 $ 154,321 $ 153,537 Income from operations 26,845 23,740 19,811 19,011 Net income 28,530 5,217 4,035 5,976 Net income attributable to the Company’s stockholders 22,279 1,847 839 2,253 Net income attributable to common stockholders’ per share—basic 0.18 0.02 0.01 0.03 Net income attributable to common stockholders’ per share— diluted 0.18 0.02 0.01 0.03 _____________ (1) The summation of the quarterly financial data may not equal the annual number reported on the consolidated statements of operations due to rounding.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Financing On January 23, 2018, the Company borrowed an additional $100.0 million under its unsecured revolving credit facility. On February 1, 2018, the Company used proceeds from the draw to pay in full the debt secured by our Rincon Center property; this loan was expected to mature in May 2018. Dispositions On January 25, 2018 , the Company sold its Embarcadero Place property for $136.0 million (before credits, prorations and closing costs). On January 31, 2018 , the Company sold its 2600 Campus Drive (building 6 of Peninsula Office Park) property for $22.5 million (before credits, prorations and closing costs). Hudson Pacific Properties, Inc. 2018 Outperformance Program On February 14, 2018, the Compensation Committee adopted the 2018 Outperformance Program (“2018 OPP”) under our 2010 Plan. The 2018 OPP authorizes grants of incentive awards linked to our absolute and relative TSR over the performance period beginning on January 1, 2018 and ending on the earlier to occur of December 31, 2020 or the date on which we experience a change in control. Each 2018 OPP award confers a percentage participation right in a dollar-denominated bonus pool that is settled in either Company common stock or performance units of the operating partnership, as well as certain dividend equivalent or distribution rights. Upon adoption of the 2018 OPP, the Compensation Committee granted Victor J. Coleman, Mark T. Lammas, Christopher Barton, Alex Vouvalides and Josh Hatfield, each of whom is a named executive officer, OPP awards of 24% , 13.75% , 6.4% , 9.15% and 6.4% respectively. The awards for each were granted in the form of performance units. Under the 2018 OPP, a bonus pool of up to (but not exceeding) $25 million will be determined at the end of the performance period as the sum of: (i) 3% of the amount by which our TSR during the performance period exceeds 7% simple annual TSR (the absolute TSR component), plus (ii) 3% of the amount by which our TSR performance exceeds that of the SNL US Office REIT Index (on a percentage basis) over the performance period (the relative TSR component), except that the relative TSR component will be reduced on a linear basis from 100% to 25% for absolute TSR performance ranging from 7% to 0% simple annual TSR over the performance period. In addition, the relative TSR component may be a negative value equal to 3% of the amount by which we underperform the SNL US Office REIT Index by more than 3% per year during the performance period (if any). The target bonus pool is equal to $4.8 million , which would be attained if the Company achieves during the performance period (i) a TSR is equal to that of the SNL US Office REIT Index and (ii) a 8% simple annual TSR. At the end of the three -year performance period, named executive officers who remain employed with us will vest in a number of performance units based on their percentage interest in the bonus pool (and determined based on the value of the common stock at the end of the performance period), and such vested performance units and will continue to be subject to an additional two -year holding (i.e., no-sell) period. However, if the performance period is terminated prior to December 31, 2020 in connection with a change in control, 2018 OPP awards will be paid entirely in fully vested performance units immediately prior to the change in control. In addition to these performance units, each 2018 OPP award entitles its holder to a cash payment equal to the aggregate distributions or dividends that would have been paid during the performance period on the total number of performance units that performance-vest had such performance units been outstanding throughout the performance period. The cash payment will be reduced by the aggregate amount of the distributions received during the performance period on the total number of performance units granted. If a participant’s employment is terminated without “cause,” for “good reason” or due to the participant’s death or disability during the performance period (referred to as qualifying terminations), the participant will be paid his or her 2018 OPP award at the end of the performance period entirely in fully vested performance units (except for the performance period distribution/dividend equivalent, which will be paid in cash at the end of the performance period). Any such payment will be pro-rated in the case of a termination without “cause” or for “good reason” by reference to the participant’s period of employment during the performance period. The foregoing description of terms of the 2018 OPP is qualified in its entirety by reference to the text of the 2018 Outperformance Award Agreements, which are attached hereto as Exhibits 10.72 and 10.73 and are incorporated herein by reference.

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2017
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III Real Estate and Accumulated Depreciation	Schedule III — Real Estate and Accumulated Depreciation December 31, 2017 (In thousands) Initial Costs Cost Capitalized Subsequent to Acquisition Gross Carrying Amount Property name Encumbrances Land Building & Improvements Improvements Carrying Costs Land Building & Improvements Total Accumulated Depreciation (4) Year Built / Renovated Year Acquired Office 875 Howard, San Francisco Bay Area, CA $ — $ 18,058 $ 41,046 $ 17,544 $ 1,936 $ 18,058 $ 60,526 78,584 $ (13,944 ) Various 2007 6040 Sunset (formerly Technicolor Building), Los Angeles, CA — 6,599 27,187 25,032 3,088 6,599 55,307 61,906 (19,426 ) 2008 2008 ICON, Los Angeles, CA — — — 146,009 5,497 — 151,506 151,506 (5,494 ) 2017 2008 CUE, Los Angeles, CA — — — 35,837 1,326 — 37,163 37,163 — Ongoing 2008 EPIC, Los Angeles, CA — — — 23,783 852 — 24,635 24,635 — Ongoing 2008 Del Amo, Los Angeles, CA — — 18,000 2,458 — — 20,458 20,458 (4,767 ) 1986 2010 1455 Market, San Francisco Bay Area, CA — 41,226 34,990 55,661 — 41,226 90,651 131,877 (12,725 ) 1976 2010 Rincon Center, San Francisco Bay Area, CA (1)(2) 98,392 58,251 110,656 22,396 — 58,251 133,052 191,303 (24,373 ) 1940/1989 2010 10950 Washington, Los Angeles, CA (2) 27,418 17,979 25,110 745 — 17,979 25,855 43,834 (4,978 ) 1957/1974 2010 604 Arizona, Los Angeles, CA — 5,620 14,745 1,332 423 5,620 16,500 22,120 (2,566 ) 1950/2005 2011 275 Brannan, San Francisco Bay Area, CA — 4,187 8,063 14,029 1,115 4,187 23,207 27,394 (6,253 ) 1905 2011 625 Second, San Francisco Bay Area, CA — 10,744 42,650 3,319 — 10,744 45,969 56,713 (8,564 ) 1906/1999 2011 6922 Hollywood, Los Angeles, CA — 16,608 72,392 8,302 — 16,608 80,694 97,302 (15,166 ) 1967 2011 10900 Washington — 1,400 1,200 738 — 1,400 1,938 3,338 (661 ) 1973 2012 901 Market, San Francisco Bay Area, CA — 17,882 79,305 13,606 — 17,882 92,911 110,793 (15,115 ) 1912/1985 2012 Element LA, Los Angeles, CA (2) 168,000 79,769 19,755 85,349 10,391 79,769 115,495 195,264 (10,203 ) 1949 2012, 2013 3401 Exposition, Los Angeles, CA — 14,120 11,319 11,046 1,028 14,120 23,393 37,513 (2,844 ) 1961 2013 505 First, Greater Seattle, WA — 22,917 133,034 3,905 22,917 136,939 159,856 (17,885 ) Various 2013 83 King, Greater Seattle, WA — 12,982 51,403 5,300 12,982 56,703 69,685 (8,345 ) Various 2013 Met Park North, Greater Seattle, WA (2) 64,500 28,996 71,768 608 — 28,996 72,376 101,372 (10,016 ) 2000 2013 Northview Center, Greater Seattle, WA — 4,803 41,191 918 — 4,803 42,109 46,912 (6,020 ) 1991 2013 Merrill Place, Greater Seattle, WA — 27,684 29,824 16,287 784 27,684 46,895 74,579 (5,251 ) Various 2014 450 Alaskan, Greater Seattle, WA — — — 73,226 2,542 — 75,768 75,768 (201 ) Ongoing 2014 Palo Alto Square, San Francisco Bay Area, CA — — 326,033 17,448 — — 343,481 343,481 (31,719 ) 1971 2015 3400 Hillview, San Francisco Bay Area, CA — — 159,641 2,453 — — 162,094 162,094 (20,037 ) 1991 2015 Initial Costs Cost Capitalized Subsequent to Acquisition Gross Carrying Amount Property name Encumbrances Land Building & Improvements Improvements Carrying Costs Land Building & Improvements Total Accumulated Depreciation (4) Year Built / Renovated Year Acquired Foothill Research Center, San Francisco Bay Area, CA — — 133,994 3,011 — — 137,005 137,005 (19,269 ) 1991 2015 Page Mill Center, San Francisco Bay Area, CA — — 147,625 6,748 — — 154,373 154,373 (19,348 ) 1970/2016 2015 Clocktower Square, San Francisco Bay Area, CA — — 93,949 539 — — 94,488 94,488 (7,875 ) 1983 2015 3176 Porter (formerly Lockheed), San Francisco Bay Area, CA — — 34,561 (292 ) — — 34,269 34,269 (3,732 ) 1991 2015 Towers at Shore Center, San Francisco Bay Area, CA — 72,673 144,188 7,924 — 72,673 152,112 224,785 (13,102 ) 2001 2015 Skyway Landing, San Francisco Bay Area, CA — 37,959 63,559 2,812 — 37,959 66,371 104,330 (6,923 ) 2001 2015 Shorebreeze, San Francisco Bay Area, CA — 69,448 59,806 7,556 — 69,448 67,362 136,810 (5,805 ) 1985/1989 2015 555 Twin Dolphin, San Francisco Bay Area, CA — 40,614 73,457 5,409 — 40,614 78,866 119,480 (7,074 ) 1989 2015 333 Twin Dolphin, San Francisco Bay Area, CA — 36,441 64,892 8,275 — 36,441 73,167 109,608 (7,136 ) 1985 2015 Peninsula Office Park, San Francisco Bay Area, CA — 98,206 93,780 12,094 — 98,206 105,874 204,080 (12,121 ) Various 2015 Metro Center, San Francisco Bay Area, CA — — 313,683 39,566 — — 353,249 353,249 (31,341 ) Various 2015 Concourse, San Francisco Bay Area, CA — 45,085 224,271 9,585 — 45,085 233,856 278,941 (23,035 ) Various 2015 Gateway, San Francisco Bay Area, CA — 33,117 121,217 26,159 — 33,117 147,376 180,493 (14,718 ) Various 2015 Metro Plaza, San Francisco Bay Area, CA — 16,038 106,156 9,929 — 16,038 116,085 132,123 (10,924 ) 1986 2015 1740 Technology, San Francisco Bay Area, CA — 8,052 49,486 3,555 — 8,052 53,041 61,093 (7,032 ) 1985 2015 Skyport Plaza, San Francisco Bay Area, CA — 29,033 153,844 (6,501 ) — 29,033 147,343 176,376 (10,401 ) 2000/2001 2015 Techmart, San Francisco Bay Area, CA — — 66,660 10,598 — — 77,258 77,258 (8,244 ) 1986 2015 Campus Center, San Francisco Bay Area, CA — 59,460 79,604 7,834 — 59,460 87,438 146,898 (15,374 ) N/A 2015 Fourth & Traction, Los Angeles, CA — 12,140 37,110 38,529 6,139 12,140 81,778 93,918 — Various 2015 MaxWell, Los Angeles, CA — 13,040 26,960 17,795 3,729 13,040 48,484 61,524 — Various 2015 11601 Wilshire, Los Angeles, CA — 28,978 321,273 17,641 — 28,978 338,914 367,892 (15,876 ) 1983 2016, 2017 Hill7, Greater Seattle, WA (2) 101,000 36,888 137,079 13,394 — 36,888 150,473 187,361 (5,466 ) 2015 2016 Page Mill Hill, San Francisco Bay Area, CA — — 131,402 1,958 — — 133,360 133,360 (5,046 ) 1975 2016 Media & Entertainment — Initial Costs Cost Capitalized Subsequent to Acquisition Gross Carrying Amount Property name Encumbrances Land Building & Improvements Improvements Carrying Costs Land Building & Improvements Total Accumulated Depreciation (4) Year Built / Renovated Year Acquired Sunset Gower Studios, Los Angeles, CA (3) 5,001 79,320 64,697 31,416 207 79,320 96,320 175,640 (23,644 ) Various 2007, 2011, 2012 Sunset Bronson Studios, Los Angeles, CA (3) — 77,698 32,374 31,543 422 77,698 64,339 142,037 (11,485 ) Various 2008 Sunset Las Palmas Studios, Los Angeles, CA 118,892 86,922 4,773 13 118,892 91,708 210,600 (1,974 ) Various 2017 Total before held for sale reclass 464,311 1,302,907 4,181,861 899,181 39,492 1,302,907 5,120,534 6,423,441 (533,498 ) Real estate held for sale: 9300 Wilshire, Los Angeles, CA — — 10,718 2,024 — — 12,742 12,742 (4,195 ) 1964/2002 2010 Embarcadero Place, San Francisco Bay Area, CA — 41,050 77,006 3,273 — 41,050 80,279 121,329 (7,155 ) 1984 2015 2180 Sand Hill, San Francisco Bay Area, CA — 13,663 50,559 385 — 13,663 50,944 64,607 (3,749 ) 1973 2015 2600 Campus Drive (building 6 of Peninsula Office Park), San Francisco Bay Area, CA — 11,700 10,400 30 — 11,700 10,430 22,130 (814 ) Various 2015 Total $ 464,311 $ 1,369,320 $ 4,330,544 $ 904,893 $ 39,492 $ 1,369,320 $ 5,274,929 $ 6,644,249 $ (549,411 ) _____________ (1) The loan was paid in full on February 1, 2018. (2) These properties are encumbered under our unsecured revolving credit facility, which, as of December 31, 2017, had an outstanding balance of $100.0 million . (3) The encumbrance amount relates to both Sunset Gower Studios and Sunset Bronson Studios. See description of notes payable in Part IV, Item 15(a) “Financial Statement and Schedules — Note 5 to the Consolidated Financial Statements-Notes Payable, net.” (4) The Company computes depreciation using the straight-line method over the estimated useful lives over the shorter of the ground lease term or 39 years for building and improvements, 15 years for land improvements and over the shorter of asset life or life of the lease for tenant improvements. The aggregate gross cost of property included above for federal income tax purposes approximated $6.2 billion , unaudited as of December 31, 2017 . The following table reconciles the historical cost of total real estate held for investment and accumulated depreciation from January 1, 2015 to December 31, 2017 : Year Ended December 31, 2017 2016 2015 Total investment in real estate, beginning of year $ 6,507,484 $ 5,976,526 $ 2,239,741 Additions during period: Acquisitions 255,848 597,751 3,699,289 Improvements, capitalized costs 330,809 296,399 198,561 Total additions during period 586,657 894,150 3,897,850 Deductions during period Disposal (fully depreciated assets and early terminations) (41,337 ) (27,451 ) (13,556 ) Cost of property sold (408,555 ) (335,741 ) (147,509 ) Total deductions during period (449,892 ) (363,192 ) (161,065 ) Ending balance, before reclassification to assets associated with real estate held for sale 6,644,249 6,507,484 5,976,526 Reclassification to assets associated with real estate held for sale (220,808 ) (629,004 ) (353,067 ) Total investment in real estate, end of year $ 6,423,441 $ 5,878,480 $ 5,623,459 Total accumulated depreciation, beginning of year $ (423,950 ) $ (272,724 ) $ (142,561 ) Additions during period: Depreciation of real estate (206,838 ) (182,219 ) (151,066 ) Total additions during period (206,838 ) (182,219 ) (151,066 ) Deductions during period: Deletions 37,925 25,622 12,999 Write-offs due to sale 43,452 5,371 7,904 Total deductions during period 81,377 30,993 20,903 Ending balance, before reclassification to assets associated with real estate held for sale (549,411 ) (423,950 ) (272,724 ) Reclassification to assets associated with real estate held for sale 15,913 48,743 8,865 Total accumulated depreciation, end of year $ (533,498 ) $ (375,207 ) $ (263,859 )

Summary of Significant Accoun25

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	The accompanying consolidated financial statements of the Company and the operating partnership are prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). Any reference to the number of properties, acres and square footage are unaudited and outside the scope of the Company’s independent registered public accounting firm’s audit of the Company’s financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board (“PCAOB”).
Principles of Consolidation	The consolidated financial statements of the Company include the accounts of the Company, the operating partnership and all wholly owned and controlled subsidiaries. The consolidated financial statements of the operating partnership include the accounts of the operating partnership and all wholly owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements. Under the consolidation guidance, we first evaluate an entity using the variable interest model, then the voting model. The Company ultimately consolidates all entities that the Company controls through either majority ownership or voting rights, including all variable interest entities (“VIEs”) of which the Company is considered the primary beneficiary. The Company accounts for all other unconsolidated joint ventures using the cost or equity method of accounting. In addition, we continually evaluate each legal entity that is not wholly owned for reconsideration based on changing circumstances. VIEs are defined as entities in which equity investors do not have: • the characteristics of a controlling financial interest; • sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties; and/or • the entity is structured with non-substantive voting rights. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with both the power to direct the activities that most significantly affect the VIE’s economic performance and the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE. As of December 31, 2017 , the Company has determined that three joint ventures and our operating partnership met the definition of a VIE. Two of the joint ventures are consolidated entities and one joint venture is a non-consolidated entity. Consolidated Entities On November 16, 2017, the Company sold its 65.0% ownership interest in the single joint venture that owned both Pinnacle I and Pinnacle II. As a result of the disposition, the Company no longer consolidates Pinnacle and Pinnacle II. As of December 31, 2017 , the operating partnership has determined that two of its joint ventures met the definition of a VIE and are consolidated: Property Ownership interest 1455 Market 55.0 % Hill7 55.0 % As of December 31, 2017 , the Company has determined that our operating partnership met the definition of a VIE and is consolidated. Substantially all of the assets and liabilities of the Company are related to these VIEs. Non-consolidated Entities On June 15, 2017, the Company purchased the remaining interest in land at its 11601 Wilshire property. Refer to Note 3 for details. As a result of the purchase, the Company is now consolidating the interest in land. On June 16, 2016, the Company entered into a joint venture to co-originate a loan secured by land in Santa Clara, California. The assets of the joint venture consist of notes receivable. As of December 31, 2017 , the Company has determined this joint venture meets the definition of a VIE, however, it is not the primary beneficiary. Due to its significant influence over the non-consolidated entity, the Company accounts for it using the equity method of accounting. Under the equity method, the Company initially records the investment at cost and subsequently adjusts for equity in earnings or losses and cash contributions and distributions. The Company’s net equity investment of $14.2 million is reflected within prepaid expenses and other assets on the Consolidated Balance Sheets which represents the Company’s maximum exposure for loss. The Company’s share of net income or loss from the entity is included within other (income) expense on the Consolidated Statements of Operations. The Company owns 21% of the non-consolidated entity.
Use of Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of commitments and contingencies at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates, including those related to acquiring, developing and assessing the carrying values of its real estate properties, its accrued liabilities, and its performance-based equity compensation awards. The Company bases its estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results could materially differ from these estimates.
Investment in Real Estate Properties	Acquisitions The Company evaluates each acquisition of real estate to determine if the integrated set of assets and activities acquired meet the definition of a business and need to be accounted for as a business combination in accordance with ASC 805, Business Combinations . An integrated set of assets and activities would fail to qualify as a business if either (i) substantially all of the fair value of the gross assets acquired is concentrated in either a single identifiable asset or a group of similar identifiable assets or (ii) the integrated set of assets and activities is lacking, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs (i.e., revenue generated before and after the transaction). An acquired process is considered substantive if (i) the process includes an organized workforce (or includes an acquired contract that provides access to an organized workforce), that is skilled, knowledgeable, and experienced in performing the process (ii) the process cannot be replaced without significant cost, effort, or delay or (iii) the process is considered unique or scarce. Acquisitions of real estate will generally not meet the revised definition of a business because substantially all of the fair value is concentrated in a single identifiable asset or group of similar identifiable assets (i.e., land, buildings and improvements and related intangible assets or liabilities) or because the acquisition does not include a substantive process in the form of an acquired workforce or an acquired contract that cannot be replaced without significant cost, effort or delay. When the Company acquires properties that are considered business combinations, assets acquired and liabilities assumed are fair valued at the acquisition date. Assets acquired and liabilities assumed include, but are not limited to, land, building and improvements, intangible assets related to above-and below-market leases, intangible assets related to in-place leases, debt and other assumed assets and liabilities. The initial accounting for a business combination is based on management’s preliminary assessment, which may differ when final information becomes available. Subsequent adjustments made to the initial purchase price assignment are made within the measurement period, which typically does not exceed one year, within the Consolidated Balance Sheets. Acquisition-related expenses associated with business combinations are expensed in the period incurred which is included in the transaction-related expenses line item of the Consolidated Statements of Operations. When the Company acquires properties that are considered asset acquisitions, the purchase price is allocated based on relative fair value of the assets acquired and liabilities assumed. There is no measurement period concept for asset acquisitions, with the purchase price accounting being final in the period of acquisition. Additionally, acquisition-related expenses associated with asset acquisitions are capitalized as part of the purchase price. The Company assesses fair value based on Level 2 and Level 3 inputs within the fair value framework, which includes estimated cash flow projections that utilize appropriate discount, capitalization rates, renewal probability and available market information, which includes market rental rate and market rent growth rates. Estimates of future cash flows are based on a number of factors including historical operating results, known and anticipated trends, and market and economic conditions. The fair value of tangible assets of an acquired property considers the value of the property as if it were vacant. The fair value of acquired “above- and below-” market leases are based on the estimated cash flow projections utilizing discount rates that reflect the risks associated with the leases acquired. The amount recorded is based on the present value of the difference between (i) the contractual amounts to be paid pursuant to each in-place lease and (ii) management’s estimate of fair market lease rates for each in-place lease, measured over a period equal to the remaining term of the lease for above-market leases and the initial below-market term plus the extended term for any leases with below-market renewal options. Other intangible assets acquired include amounts for in-place lease values that are based on the Company’s evaluation of the specific characteristics of each tenant’s lease. Factors considered include estimates of carrying costs during hypothetical expected lease-up periods, market conditions and costs to execute similar leases. In estimating carrying costs, the Company includes estimates of lost rents at market rates during the hypothetical expected lease-up periods, which are dependent on local market conditions. In estimating costs to execute similar leases, the Company considers leasing commissions and legal and other related costs. Cost Capitalization The Company capitalizes direct construction and development costs, including redevelopment costs, interest, property taxes, insurance and other costs directly related and essential to the acquisition, development or construction of a real estate project. Indirect development costs, including salaries and benefits, office rent, and associated costs for those individuals directly responsible for and who spend their time on development activities are also capitalized and allocated to the projects to which they relate. Construction and development costs are capitalized while substantial activities are ongoing to prepare an asset for its intended use. The Company considers a construction project as substantially complete and held available for occupancy upon the completion of tenant improvements but no later than one year after cessation of major construction activity. Costs incurred after a project is substantially complete and ready for its intended use, or after development activities have ceased, are expensed as they are incurred. Costs previously capitalized that related to abandoned acquisitions or developments are charged to earnings. Expenditures for repairs and maintenance are expensed as they are incurred.
Depreciation	The properties are generally carried at cost, less accumulated depreciation and amortization. The Company computes depreciation and amortization using the straight-line method over the estimated useful lives of the assets as represented in the table below: Asset Description Estimated useful life (years) Building and improvements Shorter of the ground lease term or 39 Land improvements 15 Furniture and fixtures 5 to 7 Tenant improvements Shorter of the estimated useful life or the lease term The Company amortizes above- and below-market lease intangibles over the remaining non-cancellable lease terms and bargain renewal periods, if applicable. The in-place lease intangibles are amortized over the remaining non-cancellable lease term. When tenants vacate prior to the expiration of lease, the amortization of intangible assets and liabilities are accelerated. The Company amortizes above- and below-market ground lease intangibles over the remaining non-cancellable lease terms.
Held for sale	The Company classifies properties as held for sale when certain criteria set forth in Accounting Standards Codification (“ASC”) 360, Property, Plant, and Equipment , are met. These criteria include (i) whether the Company is committed to a plan to sell, (ii) whether the asset or disposal group is available for immediate sale, (iii) whether an active program to locate a buyer and other actions required to complete the plan to sell have been initiated, (iv) whether the sale of the asset or disposal group is probable (i.e., likely to occur) and the transfer is expected to qualify for recognition as a completed sale within one year, (v) whether the long-lived asset or disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value, (vi) whether actions necessary to complete the plan indicate that it is unlikely significant changes to the plan will be made or that the plan will be withdrawn. At the time a property is classified as held for sale, the Company reclassifies its assets and liabilities to held for sale in the Consolidated Balance Sheets for the periods presented and ceases recognizing depreciation expense. Properties held for sale are reported at the lower of their carrying value or their estimated fair value, less estimated costs to sell. According to ASC 205, Presentation of Financial Statements , the Company does not present the operating results in net loss from discontinued operations for disposals if they do not represent a strategic shift in the Company’s business.
Impairment of Long-Lived Assets	The Company assesses the carrying value of real estate assets and related intangibles for impairment on a quarterly basis and whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable in accordance with GAAP. Impairment losses are recorded on real estate assets held for investment when indicators of impairment are present and the future undiscounted cash flows estimated to be generated by those assets are less than the assets’ carrying amount. The Company recognizes impairment losses to the extent the carrying amount exceeds the fair value of the properties.
Goodwill	Goodwill represents the excess of acquisition cost over the fair value of net tangible and identifiable intangible assets acquired and liabilities assumed in business acquisitions. The Company does not amortize this asset but instead analyzes it on a quarterly basis for impairment.
Cash, Cash Equivalents and Restricted Cash	Cash and cash equivalents are defined as cash on hand and in banks, plus all short-term investments with a maturity of three months or less when purchased. Restricted cash primarily consists of amounts held by lenders to fund reserves such as capital improvements, taxes, insurance, debt service and operating expenditures. The Company maintains some of its cash in bank deposit accounts that, at times, may exceed the federally insured limit. No losses have been experienced related to such accounts.
Accounts Receivable, net	Accounts receivable consist of amounts due for monthly rents and other charges. The Company maintains an allowance for doubtful accounts for estimated losses resulting from tenant defaults or the inability of tenants to make contractual rent and tenant recovery payments. The Company monitors the liquidity and creditworthiness of its tenants and operators on an ongoing basis. This evaluation considers industry and economic conditions, property performance, credit enhancements, length of time the receivables are past due, specific identification of uncollectible amounts, historical experience and other relevant factors. Historical experience has been within management’s expectations.
Segment Reporting	The Company’s reporting segments are based on the Company’s method of internal reporting, which classifies its operations into two reporting segments: (i) office properties and (ii) media and entertainment properties. The Company evaluates performance based upon net operating income of the combined properties in each segment. The media and entertainment segment is immaterial, and therefore separate income information by segment has not been presented. Asset information by segment is not reported because the Company does not use this measure to assess performance or make decisions to allocate resources.
Revenue Recognition	The Company recognizes rental revenue from tenants on a straight-line basis over the lease term when collectability is reasonably assured and the tenant has taken possession or controls the physical use of the leased asset. If the lease provides for tenant improvements, the Company determines whether the tenant improvements, for accounting purposes, are owned by the tenant or the Company. When the Company is the owner of the tenant improvements, the tenant is not considered to have taken physical possession or have control of the physical use of the leased asset until the tenant improvements are substantially completed. When the tenant is the owner of the tenant improvements, any tenant improvement allowance that is funded is treated as a lease incentive and amortized as a reduction of revenue over the lease term. Tenant improvement ownership is determined based on various factors including, but not limited to: • whether the lease stipulates how and on what a tenant improvement allowance may be spent; • whether the tenant or landlord retains legal title to the improvements at the end of the lease term; • whether the tenant improvements are unique to the tenant or general-purpose in nature; and • whether the tenant improvements are expected to have any residual value at the end of the lease. Certain leases provide for additional rents contingent upon a percentage of the tenant’s revenue in excess of specified base amounts or other thresholds. Such revenue is recognized when actual results reported by the tenant, or estimates of tenant results, exceed the base amount or other thresholds. Such revenue is recognized only after the contingency has been removed (when the related thresholds are achieved), which may result in the recognition of rental revenue in periods subsequent to when such payments are received. Other property-related revenue is revenue that is derived from the tenants’ use of lighting, equipment rental, parking, power, HVAC and telecommunications (telephone and Internet). Other property-related revenue is recognized when these items are provided. Tenant recoveries related to reimbursement of real estate taxes, insurance, repairs and maintenance, and other operating expenses are recognized as revenue in the period during which the applicable expenses are incurred. The reimbursements are recognized and presented gross, as the Company is generally the primary obligor with respect to purchasing goods and services from third-party suppliers, has discretion in selecting the supplier and bears the associated credit risk. The Company recognizes gains on sales of properties upon the closing of the transaction with the purchaser. Gains on properties sold are recognized using the full accrual method when (i) the collectability of the sales price is reasonably assured, (ii) the Company is not obligated to perform significant activities after the sale, (iii) the initial investment from the buyer is sufficient and (iv) other profit recognition criteria have been satisfied. Gains on sales of properties may be deferred in whole or in part until the requirements for gain recognition have been met.
Deferred Financing Costs and Debt Discount/Premium	Deferred financing costs are amortized over the contractual loan term into interest expense on the Consolidated Statements of Operations. Deferred financing costs, and related amortization, related to the unsecured revolving credit facility and undrawn term loans are presented within prepaid expenses and other assets, net in the Consolidated Balance Sheets. All other deferred financing costs, and related amortization, are included in the notes payable, net line item in the Consolidated Balance Sheets. Debt discounts and premiums are amortized and accreted on a straight-line basis over the contractual loan term, which approximates the effective interest method, into interest expense on the Consolidated Statements of Operations. Discounts are recorded as additional interest expense and premiums are recorded as a reduction to interest expense.
Derivative Instruments	The Company manages interest rate risk associated with borrowings by entering into derivative instruments. The Company recognizes all derivative instruments on the Consolidated Balance Sheets on a gross basis at fair value. Derivative instruments that are not effective hedges are adjusted to fair value and the changes in fair value are reflected as income or expense. If the derivative instrument is an effective hedge, depending on the nature of the hedge, changes in the fair value are either offset against the change in fair value of the hedged assets, liabilities, or firm commitments through earnings, or recognized in other comprehensive income (loss), which is a component of equity. The ineffective portion of a derivative instrument’s change in fair value is immediately recognized in earnings.
Stock-Based Compensation	Compensation cost of restricted stock, restricted stock units and performance units under the Company’s equity incentive award plans are accounted for under ASC 718, Compensation-Stock Compensation (“ASC 718”). The Company accounts for forfeitures of awards as they occur.
Income Taxes	The Company’s property-owning subsidiaries are limited liability companies and are treated as pass-through entities or disregarded entities (or, in the case of the entities that own the 1455 Market and Hill7 properties, REITs) for federal income tax purposes. Accordingly, no provision has been made for federal income taxes in the accompanying consolidated financial statements for the activities of these entities. The Company has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”) commencing with its taxable year ended December 31, 2010. The Company believes that it has operated in a manner that has allowed the Company to qualify as a REIT for federal income tax purposes commencing with such taxable year, and the Company intends to continue operating in such manner. To qualify as a REIT, the Company is required to distribute at least 90% of its net taxable income, excluding net capital gains, to the Company’s stockholders and to meet the various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership. Provided that it continues to qualify for taxation as a REIT, the Company is generally not subject to corporate level income tax on the earnings distributed currently to its stockholders. If the Company fails to qualify as a REIT in any taxable year, and is unable to avail itself of certain savings provisions set forth in the Code, all of its taxable income would be subject to federal income tax at regular corporate rates, including any applicable alternative minimum tax. Unless entitled to relief under specific statutory provisions, the Company would be ineligible to elect to be treated as a REIT for the four taxable years following the year for which the Company loses its qualification. It is not possible to state whether in all circumstances the Company would be entitled to this statutory relief. The Company may acquire direct or indirect interests in one or more Subsidiary REITs. A Subsidiary REIT is subject to the various REIT qualification requirements and other limitations described herein that are applicable to the Company. If a subsidiary REIT were to fail to qualify as a REIT, then (i) that Subsidiary REIT would become subject to federal income tax, (ii) shares in such REIT would cease to be qualifying assets for purposes of the asset tests applicable to REITs and (iii) it is possible that the Company would fail certain of the asset tests applicable to REITs, in which event the Company would fail to qualify as a REIT unless the Company could avail itself of certain relief provisions. The Company believes that its operating partnership is properly treated as a partnership for federal income tax purposes. As a partnership, the Company’s operating partnership is not subject to federal income tax on its income. Instead, each of its partners, including the Company, is allocated, and may be required to pay tax with respect to, its share of the operating partnership’s income. As such, no provision for federal income taxes has been included for the operating partnership. The Company has elected, together with one of the Company’s subsidiaries, to treat such subsidiary as a taxable REIT subsidiary (“TRS”) for federal income tax purposes. Certain activities that the Company may undertake, such as non-customary services for the Company’s tenants and holding assets that the Company cannot hold directly, will be conducted by a TRS. A TRS is subject to federal and, where applicable, state income taxes on its net income. The Company’s TRS did not have significant tax provisions or deferred income tax items for 2017 , 2016 or 2015 . The Company is subject to the statutory requirements of the states in which it conducts business. The Company periodically evaluates its tax positions to determine whether it is more likely than not that such positions would be sustained upon examination by a tax authority for all open tax years, as defined by the statute of limitations, based on their technical merits. As of December 31, 2017 , the Company has not established a liability for uncertain tax positions. The Company and its TRS file income tax returns with the U.S. federal government and various state and local jurisdictions. The Company and its TRS are no longer subject to tax examinations by tax authorities for years prior to 2012. Generally, the Company has assessed its tax positions for all open years, which include 2012 to 2016, and concluded that there are no material uncertainties to be recognized.
Fair Value of Assets and Liabilities	Under GAAP, the Company is required to measure certain financial instruments at fair value on a recurring basis. In addition, the Company is required to measure other financial instruments and balances at fair value on a non-recurring basis (e.g., carrying value of impaired real estate and long-lived assets). Fair value is defined as the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The GAAP fair value framework uses a three-tiered approach. Fair value measurements are classified and disclosed in one of the following three categories: • Level 1: unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities; • Level 2: quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and • Level 3: prices or valuation techniques where little or no market data is available that requires inputs that are both significant to the fair value measurement and unobservable. When available, the Company utilizes quoted market prices from an independent third-party source to determine fair value and classifies such items in Level 1 or Level 2. In instances where the market for a financial instrument is not active, regardless of the availability of a nonbinding quoted market price, observable inputs might not be relevant and could require the Company to make a significant adjustment to derive a fair value measurement. Additionally, in an inactive market, a market price quoted from an independent third party may rely more on models with inputs based on information available only to that independent third party. When the Company determines the market for a financial instrument owned by the Company to be illiquid or when market transactions for similar instruments do not appear orderly, the Company uses several valuation sources (including internal valuations, discounted cash flow analysis and quoted market prices) and establishes a fair value by assigning weights to the various valuation sources. Changes in assumptions or estimation methodologies can have a material effect on these estimated fair values. In this regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, may not be realized in an immediate settlement of the instrument. The Company considers the following factors to be indicators of an inactive market: (i) there are few recent transactions, (ii) price quotations are not based on current information, (iii) price quotations vary substantially either over time or among market makers (for example, some brokered markets), (iv) indexes that previously were highly correlated with the fair values of the asset or liability are demonstrably uncorrelated with recent indications of fair value for that asset or liability, (v) there is a significant increase in implied liquidity risk premiums, yields, or performance indicators (such as delinquency rates or loss severities) for observed transactions or quoted prices when compared with the Company’s estimate of expected cash flows, considering all available market data about credit and other nonperformance risk for the asset or liability, (vi) there is a wide bid-ask spread or significant increase in the bid-ask spread, (vii) there is a significant decline or absence of a market for new issuances (that is, a primary market) for the asset or liability or similar assets or liabilities, and (viii) little information is released publicly (for example, a principal-to-principal market). The Company considers the following factors to be indicators of non-orderly transactions: (i) there was not adequate exposure to the market for a period before the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets or liabilities under current market conditions, (ii) there was a usual and customary marketing period, but the seller marketed the asset or liability to a single market participant, (iii) the seller is in or near bankruptcy or receivership (that is, distressed), or the seller was required to sell to meet regulatory or legal requirements (that is, forced), and (iv) the transaction price is an outlier when compared with other recent transactions for the same or similar assets or liabilities.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Changes to GAAP are established by the Financial Accounting Standards Board (“the FASB”) in the form of Accounting Standards Update (“ASU”). The following ASUs were issued from 2016 to 2017 and have been adopted by the Company: Standard Description Effect on the Financial Statements or Other Significant Matters ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment This guidance removes step two from the goodwill impairment test. As a result, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The Company early adopted this guidance during the second quarter of 2017 and applied it prospectively. The adoption did not have an impact on the Company’s consolidated financial statements. ASU 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments—Equity Method and Joint Ventures (Topic 323): Amendments to SEC Paragraphs Pursuant to Staff Announcements at the September 22, 2016 and November 17, 2016 EITF Meetings (SEC Update) The guidance in this ASU is based on two SEC staff announcements made at the September 2016 and November 2016 EITF meetings. In the September meeting, the SEC announced that a registrant should disclose the potential material effects of the ASUs related to revenues, leases and credit losses on financial instruments. As a result of the November meeting, the ASU conforms to ASC 323 to the guidance issued in ASU 2014-01 related to investments in qualified affordable housing projects. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. With the adoption, the Company provided updates on its implementation of the ASUs related to revenue, leases and credit losses on financial instruments. Please refer to sections below for updates on the implementation of revenue and lease ASUs. The ASU related to credit losses on financial instruments could have a material impact on trade receivables and the Company is currently assessing the impact of this ASU on its consolidated financial statements and notes to the consolidated financial statements. ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business This update amends the guidance for determining whether a transaction involves the purchase or disposal of a business or an asset. The amendments clarify that when substantially all of the fair value of the gross assets acquired or disposed of is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is not a business. The Company early adopted the guidance in the fourth quarter of 2016. The adoption of this guidance changed the accounting for the transaction costs for acquisitions of operating properties treated as asset acquisitions such that transaction costs are capitalized as part of the purchase price of the acquisition instead of being expensed as transaction-related expenses. Standard Description Effect on the Financial Statements or Other Significant Matters ASU 2016-19, Technical Corrections and Improvements The technical corrections make minor change to certain aspects of the FASB ASC, including changes to resolve differences between current and pre-Codification guidance, updates to wording, references to avoid misapplication and textual simplifications to increase the Codification’s utility and understandability and minor amendments to guidance that are not expected to have a significant effect on current accounting practice or create a significant administrative cost to most entities. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force) This guidance requires entities to include restricted cash and restricted cash equivalents with cash and cash equivalents when reconciling the beginning of period and end of period total amounts shown on the statement of cash flows. The Company early adopted this guidance during the second quarter of 2017 and applied it retrospectively. Pursuant to the adoption, the Company revised the Consolidated Statement of Cash Flows and disclosed the reconciliation to the related captions in the Consolidated Balance Sheets. ASU 2016-17, Consolidation (Topic 810): Interests Held through Related Parties That Are under Common Control This guidance outlines how a single decisionmaker of a VIE should treat indirect interests held through other related parties that are under common control with the reporting entity when determining whether it is the primary beneficiary of that VIE. The Company adopted this guidance during the first quarter of 2017 and applied it retrospectively. The adoption did not have a material impact on the Company’s consolidated financial statements and did not change the consolidation conclusion. ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments This ASU clarifies how certain transactions should be classified in the statement of cash flows, including debt prepayment costs, contingent consideration payments made after a business combination and distributions received from equity method investments. The ASU provides two approaches to determine the classification of cash distributions received from equity method investments: (i) the “cumulative earnings” approach, under which distributions up to the amount of cumulative equity in earnings recognized will be classified as cash inflows from operating activities, and those in excess of that amount will be classified as cash inflows from investing activities and (ii) the “nature of the distribution” approach, under which distributions will be classified based on the nature of the underlying activity that generated cash distributions. The guidance requires a Company to elect either the “cumulative earnings” approach or the “nature of the distribution” approach at the time of adoption. The Company early adopted this guidance during the second quarter of 2017 and applied it retrospectively. Pursuant to the adoption, the Company elected the “nature of the distribution” approach related to the distributions received from its equity method investments. The adoption did not have an impact on the Company’s Consolidated Statements of Cash Flows. ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323), Simplifying the Transition to the Equity Method of Accounting The guidance eliminates the requirement that an investor retrospectively apply equity method accounting when an investment that it had accounted for by another method initially qualifies for use of the equity method. The guidance also requires an investor that has an available-for-sale security that subsequently qualifies for the equity method to recognize in net income the unrealized holding gains or losses in accumulated other comprehensive income related to that security when it begins applying the equity method. It is required to apply this guidance prospectively. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. ASU 2016-06, Investments—Derivatives and Hedging (Topic 815), Contingent Put and Call Options in Debt Instruments The guidance requires a four-step decision sequence when assessing whether an embedded contingent put or call option is clearly and closely related to the debt host instrument. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have an impact on the Company’s consolidated financial statements. ASU 2016-05, Derivatives and Hedging (Topic 815), Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships The guidance states that the novation of a derivative contract (e.g., a change in the counterparty) in a hedge accounting relationship does not, in and of itself, require de-designation of that hedge accounting relationship. The hedge accounting relationship could continue uninterrupted if all of the other hedge accounting criteria are met, including the expectation that the hedge will be highly effective when the creditworthiness of the new counterparty to the derivative contract is considered. Either a prospective or a modified retrospective approach can be applied. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. Update on ASC 606, Revenue from Contracts with Customers (“ASC 606”), implementation The new revenue standard was amended through various ASU’s. The ASU’s that impact the Company are ASU 2016-08, Revenue from Contracts with Customers — Principal versus Agent Considerations (Reporting Revenue Gross versus Net) and ASU 2014-09, Revenue from Contracts with Customers . Issued on March 17, 2016, ASU 2016-08 clarifies certain aspects of the principal-versus-agent guidance in its new revenue recognition standard related to the determination of whether an entity is a principal-versus-agent and the determination of the nature of each specified good or service. Issued on May 28, 2014, ASU 2014-09 outlines a single comprehensive model for entities to use in accounting for revenues arising from contracts with customers and specifically notes that lease contracts with customers are a scope exception. ASC 606 provides practical expedients associated with the determination of whether a significant financing component exists and the expedient for recording an immediate expense for certain incremental costs of obtaining a contract with a customer. This ASU is effective for annual reporting periods (including interim periods) beginning after December 15, 2017. Either the full retrospective approach (to the beginning of its contracts) or modified retrospective approach (from the beginning of the latest fiscal year of adoption) is permitted. The Company has compiled an inventory of its sources of revenues and has preliminarily identified three revenue streams, which include other property related revenues, tenant recoveries and parking and other. Two of these revenue streams will be accounted for under ASC 606 when it becomes effective on January 1, 2018. The remaining revenue stream, tenant recoveries, which is integral to the Company’s leasing revenues, will be accounted for under ASC 606 on January 1, 2019, when the Company adopts ASC 842, Leases (“ASC 842”). Under the current ASC 842 guidance, the Company would be required to classify our tenant recoveries into lease and non-lease components. In January 2018, the FASB issued a proposed amendment to ASC 842 which if elected allows the Company to classify tenant recoveries as a single lease component and ASC 606 would then not apply. The Company has completed its implementation of ASC 606 and has concluded that the recognition of revenues will not be materially impacted by this standard. The Company adopted ASC 606 on January 1, 2018 using the modified retrospective approach and is using the practical expedients associated with expensing incremental costs of obtaining a contract with a customer with terms of one year or less. Update on ASC 842, Leases, implementation On February 25, 2016, the FASB issued ASU 2016-02, Leases , to amend the accounting guidance for leases and set out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a lease agreement (i.e., lessees and lessors). This ASU is effective for annual reporting periods (including interim periods) beginning after December 15, 2018. A modified retrospective approach must be applied for leases that exist or are entered into after January 1, 2017, the beginning of the earliest comparative period presented in the 2019 consolidated financial statements, with a cumulative adjustment to the opening balance of accumulated deficit on January 1, 2017, and restatement of the amounts presented prior to January 1, 2019. In January 2018, the FASB issued a proposed amendment to ASU 842 that would provide an entity the optional transition method to initially account for the impact of the adoption with a cumulative adjustment to accumulated deficit on the effective date of the ASU, January 1, 2019 rather than January 1, 2017, which would eliminate the need to restate amounts presented prior to January 1, 2019. This guidance requires all lessees to record a lease liability at lease inception, with a corresponding right of use asset, except for short-term leases. Lessor accounting will not be fundamentally changed. ASC 842 provides practical expedients that allow entities to not (i) reassess whether any expired or existing contracts are considered or contain leases; (ii) reassess the lease classification for any expired or existing leases; and (iii) reassess initial direct costs for any existing leases. The Company plans to adopt the standard on January 1, 2019 and expects to elect the use of practical expedients. If the proposed amendment to ASU 842 is adopted, the Company would elect the transition method for adoption as described above. Lessor Accounting The Company recognized rental revenues and tenant recoveries of $675.6 million for the year ended December 31, 2017 . This ASU requires companies to identify lease and non-lease components of a lease agreement. Lease components relate to the right to use the leased asset and non-lease components relate to payments for goods or services that are transferred separately from the right to use the underlying asset. Total lease consideration is allocated to lease and non-lease components on a relative standalone basis. The recognition of revenues related to lease components will be governed by ASC 842 while revenue related to non-lease components will be subject to ASC 606. Under current accounting standards, the Company recognizes rental revenue from tenants on a straight-line basis over the lease term when collectability is reasonably assured and the tenant has taken possession or controls the physical use of the leased asset. Tenant recoveries related to reimbursement of real estate taxes, insurance, repairs and maintenance and other operating expenses are recognized as revenue in the period during which the applicable expenses are incurred. The reimbursements are recognized and presented gross, as we are generally the primary obligor with respect to purchasing goods and services from third-party suppliers, have discretion in selecting the supplier and bear the associated credit risk. In the FASB-proposed amendment to ASU 842, lessors can elect, as a practical expedient, not to allocate the total consideration to lease and non-lease components based on their relative standalone selling prices. If adopted, this practical expedient will allow lessors to elect a combined single lease component presentation if (i) the timing and pattern of the revenue recognition of the combined single lease component is the same, and (ii) the related lease component and, the combined single lease component would be classified as an operating lease. The Company has not completed its analysis of this ASU. If the proposed practical expedient mentioned above is adopted and elected, tenant recoveries that qualify as non-lease components will be combined under a single lease component presentation. However, without the proposed practical expedient, the Company expects that it will continue to recognize the lease revenue component using an approach that is substantially equivalent to existing guidance. The Company expects that tenant recoveries will be separated into lease and non-lease components. Tenant recoveries that are categorized as lease components will generally be variable consideration with revenue recognized as the recoverable services are provided. Tenant recoveries that are categorized as non-lease components will be recognized at either a point in time or over time based on the pattern of transfer of the underlying goods or services to our tenants. The ASU also requires lessors to capitalize only those costs that are defined as initial direct costs. Under the current accounting standards, the Company capitalizes initial direct and indirect leasing costs. During the year ended December 31, 2017 , the Company capitalized $8.9 million of indirect leasing costs. Under this new ASU, these costs will be expensed as incurred. Lessee Accounting As of December 31, 2017 , the future undiscounted minimum lease payments under the Company’s ground leases totaled $452.8 million . This guidance requires lessees to record a lease liability at lease inception, with a corresponding right-of-use asset, except for short-term leases. The Company continues to evaluate the amount of right-of-use asset and lease liability that will ultimately be recorded with respect to its ground leases agreements, where it is the lessee. Other recently issued ASUs The Company considers the applicability and impact of all ASUs. The following table lists the recently issued ASUs that have not been adopted by the Company. The list excludes those ASUs that are not expected to have a material impact on the Company’s consolidated financial statements and the ASUs related to the ASC 606 and ASC 842 which are discussed above. Standard Description Effective Date Effect on the Financial Statements or Other Significant Matters ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities The guidance eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item. Therefore, a cumulative effect adjustment related to elimination of ineffectiveness measurement is required to be recorded to the opening balance of accumulated deficit as of the beginning of the fiscal year of adoption for cash flow hedges. The guidance also eases certain documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. This guidance must be applied using a modified retrospective approach. Effective for annual reporting periods (including interim periods) beginning after December 15, 2018 The Company is currently evaluating the impact of this standard on its consolidated financial statements and notes to the consolidated financial statements. The Company expects that the adoption would impact derivative instruments that have portions of ineffectiveness. The Company plans to early adopt this guidance during the first quarter in 2018 and apply it using the modified retrospective approach. ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting The guidance clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. This guidance must be applied prospectively. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company does not currently expect a material impact of this ASU on its consolidated financial statements and notes to the consolidated financial statements. The Company plans to adopt this guidance during the first quarter in 2018. ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets The guidance updates the definition of an in substance nonfinancial asset and clarifies the scope of ASC 610-20 on the sale or transfer of nonfinancial assets to noncustomers, including partial sales. It also clarifies the derecognition guidance for nonfinancial assets to conform with the new revenue recognition standard. Either a full or modified retrospective approach can be applied. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company currently expects that the adoption of this ASU could have a material impact on its consolidated financial statements; however, such impact will not be known until the Company disposes of any of its investments in real estate properties, which would all be sales of nonfinancial assets. The Company plans to adopt this guidance during the first quarter in 2018 and apply it using the modified retrospective approach. ASU 2016-13, Financial Instruments—Credit Losses This guidance sets forth a new impairment model for financial instruments, the current expected credit loss (“CECL”) model, which is based on expected losses rather than incurred losses. Under the CECL model, an entity recognizes as an allowance its estimate of expected credit losses. Effective for annual reporting periods (including interim periods) beginning after December 15, 2019 The Company is currently evaluating the impact of this standard. ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. This guidance provides a new measurement alternative for equity investments that do not have readily determinable fair values and do not qualify for the net asset value practical expedient. Under this alternative, these investments can be measured at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company is currently evaluating the impact of this standard.

Organization (Tables)

Organization (Tables)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Company's portfolio	The following table summarizes the Company’s portfolio as of December 31, 2017 : Segments Number of Properties Square Feet (unaudited) Office 51 13,291,531 Media & Entertainment 3 1,249,927 Total (1) 54 14,541,458 _________________ (1) Includes redevelopment, development and held for sale properties. The following table summarizes the information on the acquisitions completed in 2017 and 2016: Property Submarket Segment Month of Acquisition Square Feet Purchase Price (1) (in millions) Sunset Las Palmas Studios (2) Hollywood Media and Entertainment May 2017 369,000 $ 200.0 11601 Wilshire land (3) West Los Angeles Office June 2017 N/A 50.0 6666 Santa Monica (4) Hollywood Media and Entertainment June 2017 4,150 3.2 Total acquisitions in 2017 373,150 $ 253.2 11601 Wilshire (5) West Los Angeles Office July 2016 500,475 $ 311.0 Hill7 (6) South Lake Union Office October 2016 285,680 179.8 Page Mill Hill (7) Palo Alto Office December 2016 182,676 150.0 Total acquisitions in 2016 968,831 $ 640.8 _____________ (1) Represents purchase price before certain credits, prorations and closing costs. (2) The property consists of stages, production office and support space on 15 acres near Sunset Gower Studios and Sunset Bronson Studios. The purchase price above does not include equipment purchased by the Company for $2.8 million , which was transacted separately from the studio acquisition. In April 2017, the Company drew $150.0 million under the unsecured revolving credit facility to fund the acquisition. (3) On July 1, 2016 the Company purchased a partial interest in land held as a tenancy in common in conjunction with its acquisition of the 11601 Wilshire property. The land interest held as a tenancy in common was accounted for as an equity method investment. On June 15, 2017, the Company purchased the remaining interest, which was fair valued and allocated to land and building. (4) This parcel is adjacent to the Sunset Las Palmas Studios property. (5) Previously owned by an affiliate of Blackstone, the property has served as the Company’s corporate headquarters since its IPO. The Company funded this acquisition with proceeds from the unsecured revolving credit facility. (6) The Company purchased the property through a joint venture with the Canadian Pension Plan Investment Board. The Company has a 55% ownership interest in the consolidated joint venture. In conjunction with the acquisition, the joint venture closed a secured non-recourse loan in the amount of $101.0 million . (7) The Company funded this acquisition with proceeds from the unsecured revolving credit facility.

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Schedule of Variable Interest Entities	As of December 31, 2017 , the operating partnership has determined that two of its joint ventures met the definition of a VIE and are consolidated: Property Ownership interest 1455 Market 55.0 % Hill7 55.0 %
Schedule of Costs Capitalized	The Company recognized the following capitalized costs: Year Ended December 31, 2017 2016 2015 Capitalized personnel costs $ 10,853 $ 9,347 $ 7,349 Capitalized interest 10,655 11,307 6,516
Schedule of Property, Plant and Equipment Useful Lives	The Company computes depreciation and amortization using the straight-line method over the estimated useful lives of the assets as represented in the table below: Asset Description Estimated useful life (years) Building and improvements Shorter of the ground lease term or 39 Land improvements 15 Furniture and fixtures 5 to 7 Tenant improvements Shorter of the estimated useful life or the lease term
Schedule of Cash and Cash Equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash at the beginning and end of the periods presented: December 31, 2017 2016 2015 (1) Beginning of period: Cash and cash equivalents $ 83,015 $ 53,551 $ 17,753 Restricted cash 25,177 18,010 17,083 Total $ 108,192 $ 71,561 $ 34,836 End of period: Cash and cash equivalents $ 78,922 $ 83,015 $ 53,551 Restricted cash 22,358 25,177 18,010 Total $ 101,280 $ 108,192 $ 71,561 _____________ (1) Includes restricted cash that was previously included in assets held for sale as of December 31, 2014.
Schedule of Restricted Cash and Cash Equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash at the beginning and end of the periods presented: December 31, 2017 2016 2015 (1) Beginning of period: Cash and cash equivalents $ 83,015 $ 53,551 $ 17,753 Restricted cash 25,177 18,010 17,083 Total $ 108,192 $ 71,561 $ 34,836 End of period: Cash and cash equivalents $ 78,922 $ 83,015 $ 53,551 Restricted cash 22,358 25,177 18,010 Total $ 101,280 $ 108,192 $ 71,561 _____________ (1) Includes restricted cash that was previously included in assets held for sale as of December 31, 2014. Included in restricted cash on the Company’s Consolidated Balance Sheets at December 31, 2017 and December 31, 2016 are lockbox and reserve funds as follows: Property December 31, 2017 December 31, 2016 Rincon Center $ 14,220 $ 16,291 Element LA 3,581 2,627 Hill7 2,392 1,643 10950 Washington 1,406 1,249 Pinnacle I — 1,811 Pinnacle II — 1,382 Total $ 21,599 $ 25,003
Schedule of Accounts Receivable Net of Allowance for Uncollectible Tenant Receivables	The following table represents the Company’s accounts receivable, net as of: December 31, 2017 December 31, 2016 Accounts receivable $ 6,835 $ 8,834 Allowance for doubtful accounts (2,472 ) (1,827 ) Accounts receivable, net (1) $ 4,363 $ 7,007 _____________ (1) Excludes balances related to properties that have been classified as held for sale. The following table represents the Company’s straight - line rent receivables, net as of: December 31, 2017 December 31, 2016 Straight-line rent receivables $ 109,457 $ 79,345 Allowance for doubtful accounts — (136 ) Straight-line rent receivables, net (1) $ 109,457 $ 79,209 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Prepaid Expenses and Other Assets, Net	The following table represents the Company’s prepaid expenses and other assets, net as of: December 31, 2017 December 31, 2016 Investment in unconsolidated entities $ 14,240 $ 37,228 Goodwill 8,754 8,754 Derivative assets 12,586 5,935 Other 25,558 25,297 Prepaid expenses and other assets, net (1) $ 61,138 $ 77,214 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Security Deposits and Prepaid Rent	The following table represents the Company’s security deposits and prepaid rent as of: December 31, 2017 December 31, 2016 Security deposits $ 36,458 $ 29,837 Prepaid rent 27,573 37,041 Security deposits and prepaid rent (1) $ 64,031 $ 66,878 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Recently Issued Accounting Literature	Changes to GAAP are established by the Financial Accounting Standards Board (“the FASB”) in the form of Accounting Standards Update (“ASU”). The following ASUs were issued from 2016 to 2017 and have been adopted by the Company: Standard Description Effect on the Financial Statements or Other Significant Matters ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment This guidance removes step two from the goodwill impairment test. As a result, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The Company early adopted this guidance during the second quarter of 2017 and applied it prospectively. The adoption did not have an impact on the Company’s consolidated financial statements. ASU 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments—Equity Method and Joint Ventures (Topic 323): Amendments to SEC Paragraphs Pursuant to Staff Announcements at the September 22, 2016 and November 17, 2016 EITF Meetings (SEC Update) The guidance in this ASU is based on two SEC staff announcements made at the September 2016 and November 2016 EITF meetings. In the September meeting, the SEC announced that a registrant should disclose the potential material effects of the ASUs related to revenues, leases and credit losses on financial instruments. As a result of the November meeting, the ASU conforms to ASC 323 to the guidance issued in ASU 2014-01 related to investments in qualified affordable housing projects. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. With the adoption, the Company provided updates on its implementation of the ASUs related to revenue, leases and credit losses on financial instruments. Please refer to sections below for updates on the implementation of revenue and lease ASUs. The ASU related to credit losses on financial instruments could have a material impact on trade receivables and the Company is currently assessing the impact of this ASU on its consolidated financial statements and notes to the consolidated financial statements. ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business This update amends the guidance for determining whether a transaction involves the purchase or disposal of a business or an asset. The amendments clarify that when substantially all of the fair value of the gross assets acquired or disposed of is concentrated in a single identifiable asset or a group of similar assets, the set of assets and activities is not a business. The Company early adopted the guidance in the fourth quarter of 2016. The adoption of this guidance changed the accounting for the transaction costs for acquisitions of operating properties treated as asset acquisitions such that transaction costs are capitalized as part of the purchase price of the acquisition instead of being expensed as transaction-related expenses. Standard Description Effect on the Financial Statements or Other Significant Matters ASU 2016-19, Technical Corrections and Improvements The technical corrections make minor change to certain aspects of the FASB ASC, including changes to resolve differences between current and pre-Codification guidance, updates to wording, references to avoid misapplication and textual simplifications to increase the Codification’s utility and understandability and minor amendments to guidance that are not expected to have a significant effect on current accounting practice or create a significant administrative cost to most entities. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force) This guidance requires entities to include restricted cash and restricted cash equivalents with cash and cash equivalents when reconciling the beginning of period and end of period total amounts shown on the statement of cash flows. The Company early adopted this guidance during the second quarter of 2017 and applied it retrospectively. Pursuant to the adoption, the Company revised the Consolidated Statement of Cash Flows and disclosed the reconciliation to the related captions in the Consolidated Balance Sheets. ASU 2016-17, Consolidation (Topic 810): Interests Held through Related Parties That Are under Common Control This guidance outlines how a single decisionmaker of a VIE should treat indirect interests held through other related parties that are under common control with the reporting entity when determining whether it is the primary beneficiary of that VIE. The Company adopted this guidance during the first quarter of 2017 and applied it retrospectively. The adoption did not have a material impact on the Company’s consolidated financial statements and did not change the consolidation conclusion. ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments This ASU clarifies how certain transactions should be classified in the statement of cash flows, including debt prepayment costs, contingent consideration payments made after a business combination and distributions received from equity method investments. The ASU provides two approaches to determine the classification of cash distributions received from equity method investments: (i) the “cumulative earnings” approach, under which distributions up to the amount of cumulative equity in earnings recognized will be classified as cash inflows from operating activities, and those in excess of that amount will be classified as cash inflows from investing activities and (ii) the “nature of the distribution” approach, under which distributions will be classified based on the nature of the underlying activity that generated cash distributions. The guidance requires a Company to elect either the “cumulative earnings” approach or the “nature of the distribution” approach at the time of adoption. The Company early adopted this guidance during the second quarter of 2017 and applied it retrospectively. Pursuant to the adoption, the Company elected the “nature of the distribution” approach related to the distributions received from its equity method investments. The adoption did not have an impact on the Company’s Consolidated Statements of Cash Flows. ASU 2016-07, Investments—Equity Method and Joint Ventures (Topic 323), Simplifying the Transition to the Equity Method of Accounting The guidance eliminates the requirement that an investor retrospectively apply equity method accounting when an investment that it had accounted for by another method initially qualifies for use of the equity method. The guidance also requires an investor that has an available-for-sale security that subsequently qualifies for the equity method to recognize in net income the unrealized holding gains or losses in accumulated other comprehensive income related to that security when it begins applying the equity method. It is required to apply this guidance prospectively. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. ASU 2016-06, Investments—Derivatives and Hedging (Topic 815), Contingent Put and Call Options in Debt Instruments The guidance requires a four-step decision sequence when assessing whether an embedded contingent put or call option is clearly and closely related to the debt host instrument. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have an impact on the Company’s consolidated financial statements. ASU 2016-05, Derivatives and Hedging (Topic 815), Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships The guidance states that the novation of a derivative contract (e.g., a change in the counterparty) in a hedge accounting relationship does not, in and of itself, require de-designation of that hedge accounting relationship. The hedge accounting relationship could continue uninterrupted if all of the other hedge accounting criteria are met, including the expectation that the hedge will be highly effective when the creditworthiness of the new counterparty to the derivative contract is considered. Either a prospective or a modified retrospective approach can be applied. The Company adopted this guidance during the first quarter of 2017 and applied it prospectively. The adoption did not have a material impact on the Company’s consolidated financial statements. Standard Description Effective Date Effect on the Financial Statements or Other Significant Matters ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities The guidance eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item. Therefore, a cumulative effect adjustment related to elimination of ineffectiveness measurement is required to be recorded to the opening balance of accumulated deficit as of the beginning of the fiscal year of adoption for cash flow hedges. The guidance also eases certain documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. This guidance must be applied using a modified retrospective approach. Effective for annual reporting periods (including interim periods) beginning after December 15, 2018 The Company is currently evaluating the impact of this standard on its consolidated financial statements and notes to the consolidated financial statements. The Company expects that the adoption would impact derivative instruments that have portions of ineffectiveness. The Company plans to early adopt this guidance during the first quarter in 2018 and apply it using the modified retrospective approach. ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting The guidance clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. This guidance must be applied prospectively. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company does not currently expect a material impact of this ASU on its consolidated financial statements and notes to the consolidated financial statements. The Company plans to adopt this guidance during the first quarter in 2018. ASU 2017-05, Other Income—Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets The guidance updates the definition of an in substance nonfinancial asset and clarifies the scope of ASC 610-20 on the sale or transfer of nonfinancial assets to noncustomers, including partial sales. It also clarifies the derecognition guidance for nonfinancial assets to conform with the new revenue recognition standard. Either a full or modified retrospective approach can be applied. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company currently expects that the adoption of this ASU could have a material impact on its consolidated financial statements; however, such impact will not be known until the Company disposes of any of its investments in real estate properties, which would all be sales of nonfinancial assets. The Company plans to adopt this guidance during the first quarter in 2018 and apply it using the modified retrospective approach. ASU 2016-13, Financial Instruments—Credit Losses This guidance sets forth a new impairment model for financial instruments, the current expected credit loss (“CECL”) model, which is based on expected losses rather than incurred losses. Under the CECL model, an entity recognizes as an allowance its estimate of expected credit losses. Effective for annual reporting periods (including interim periods) beginning after December 15, 2019 The Company is currently evaluating the impact of this standard. ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10), Recognition and Measurement of Financial Assets and Financial Liabilities. This guidance provides a new measurement alternative for equity investments that do not have readily determinable fair values and do not qualify for the net asset value practical expedient. Under this alternative, these investments can be measured at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Effective for annual reporting periods (including interim periods) beginning after December 15, 2017 The Company is currently evaluating the impact of this standard.

Investment in Real Estate (Tabl

Investment in Real Estate (Tables)	12 Months Ended
	Dec. 31, 2017
Real Estate [Abstract]
Real Estate Investment Financial Statements, Disclosure	The following table summarizes the Company’s investment in real estate, at cost as of: December 31, 2017 December 31, 2016 Land $ 1,302,907 $ 1,155,037 Building and improvements 4,480,993 4,069,005 Tenant improvements 411,706 354,940 Furniture and fixtures 8,608 4,264 Property under development 219,227 295,234 Investment in real estate, at cost (1) $ 6,423,441 $ 5,878,480 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Real Estate Properties Acquired	The following table summarizes the Company’s portfolio as of December 31, 2017 : Segments Number of Properties Square Feet (unaudited) Office 51 13,291,531 Media & Entertainment 3 1,249,927 Total (1) 54 14,541,458 _________________ (1) Includes redevelopment, development and held for sale properties. The following table summarizes the information on the acquisitions completed in 2017 and 2016: Property Submarket Segment Month of Acquisition Square Feet Purchase Price (1) (in millions) Sunset Las Palmas Studios (2) Hollywood Media and Entertainment May 2017 369,000 $ 200.0 11601 Wilshire land (3) West Los Angeles Office June 2017 N/A 50.0 6666 Santa Monica (4) Hollywood Media and Entertainment June 2017 4,150 3.2 Total acquisitions in 2017 373,150 $ 253.2 11601 Wilshire (5) West Los Angeles Office July 2016 500,475 $ 311.0 Hill7 (6) South Lake Union Office October 2016 285,680 179.8 Page Mill Hill (7) Palo Alto Office December 2016 182,676 150.0 Total acquisitions in 2016 968,831 $ 640.8 _____________ (1) Represents purchase price before certain credits, prorations and closing costs. (2) The property consists of stages, production office and support space on 15 acres near Sunset Gower Studios and Sunset Bronson Studios. The purchase price above does not include equipment purchased by the Company for $2.8 million , which was transacted separately from the studio acquisition. In April 2017, the Company drew $150.0 million under the unsecured revolving credit facility to fund the acquisition. (3) On July 1, 2016 the Company purchased a partial interest in land held as a tenancy in common in conjunction with its acquisition of the 11601 Wilshire property. The land interest held as a tenancy in common was accounted for as an equity method investment. On June 15, 2017, the Company purchased the remaining interest, which was fair valued and allocated to land and building. (4) This parcel is adjacent to the Sunset Las Palmas Studios property. (5) Previously owned by an affiliate of Blackstone, the property has served as the Company’s corporate headquarters since its IPO. The Company funded this acquisition with proceeds from the unsecured revolving credit facility. (6) The Company purchased the property through a joint venture with the Canadian Pension Plan Investment Board. The Company has a 55% ownership interest in the consolidated joint venture. In conjunction with the acquisition, the joint venture closed a secured non-recourse loan in the amount of $101.0 million . (7) The Company funded this acquisition with proceeds from the unsecured revolving credit facility.
Business Acquisition, Pro Forma Information	The following table represents the Company’s final aggregate purchase price accounting, as of the respective acquisition dates, for each of the Company’s acquisitions completed in 2017: Sunset Las Palmas Studios (1) 11601 Wilshire land 6666 Santa Monica Total Investment in real estate $ 202,723 $ 50,034 $ 3,091 $ 255,848 Deferred leasing costs and in-place lease intangibles (2) 1,741 — 145 1,886 Total assets assumed $ 204,464 $ 50,034 $ 3,236 $ 257,734 _____________ (1) The purchase price allocation includes equipment purchased by the Company of $2.8 million . (2) Represents weighted-average amortization period of 1.2 years.
Schedule of Business Acquisitions, by Acquisition	The following table represents the final purchase price accounting for each of the Company’s acquisitions completed in 2016: 11601 Wilshire Hill7 Page Mill Hill Total Investment in real estate, net $ 292,382 $ 173,967 $ 131,402 $ 597,751 Land interest (1) 7,836 — — 7,836 Above-market leases (2) 167 — 307 474 Below-market ground leases (3) 212 — 12,125 12,337 Deferred leasing costs and lease intangibles (4) 13,884 7,617 14,697 36,198 Below-market leases (5) (6,562 ) (1,417 ) (8,636 ) (16,615 ) Net asset and liabilities assumed $ 307,919 $ 180,167 $ 149,895 $ 637,981 _____________ (1) Represents the fair value of the Company’s interest in the land which was included in investment in unconsolidated entities in the Consolidated Balance Sheets at December 31, 2016. On June 15, 2017, the Company purchased the remaining interest, which was fair valued and allocated to land and building. Refer to the 2017 acquisitions above for details. (2) Represents weighted-average amortization period of 5.4 years. (3) Represents weighted-average amortization period of 33.2 years. (4) Represents weighted-average amortization period of 5.8 years. (5) Represents weighted-average amortization period of 6.4 years.
Disposal Group, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Real Estate Held for Sale	The following table summarizes the properties sold in 2017, 2016 and 2015. These properties were considered non-strategic to the Company’s portfolio: Property Month of Disposition Square Feet Sales Price (1) (in millions) 222 Kearny February 2017 148,797 $ 51.8 3402 Pico March 2017 50,687 35.0 Pinnacle I and Pinnacle II (2) November 2017 623,777 350.0 Total dispositions in 2017 823,261 $ 436.8 Bayhill Office Center January 2016 554,328 $ 215.0 Patrick Henry April 2016 70,520 19.0 One Bay Plaza June 2016 195,739 53.4 12655 Jefferson November 2016 100,756 80.0 Total dispositions in 2016 (3) 921,343 $ 367.4 First Financial March 2015 223,679 $ 89.0 Bay Park Plaza September 2015 260,183 90.0 Total dispositions in 2015 (4) 483,862 $ 179.0 _____________ (1) Represents gross sales price before certain credits, prorations and closing costs. (2) The consolidated joint venture that owned Pinnacle I and Pinnacle II sold the properties to affiliates of Blackstone. In conjunction with the sale, the $216.0 million debt secured by these properties was assumed by the purchasers. (3) Excludes the sale of an option to acquire land at 9300 Culver on December 6, 2016. (4) Excludes the 45% ownership interest in 1455 Market completed on January 7, 2015.
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Real Estate Held for Sale	The following table summarizes the components of assets and liabilities associated with real estate held for sale as of: December 31, 2017 December 31, 2016 ASSETS Investment in real estate, net $ 204,895 $ 580,261 Accounts receivable, net 85 183 Straight-line rent receivables, net 2,234 8,849 Deferred leasing costs and lease intangible assets, net 4,063 23,078 Prepaid expenses and other assets, net 58 2,803 Assets associated with real estate held for sale $ 211,335 $ 615,174 LIABILITIES Notes payable, net $ — $ 214,684 Accounts payable and accrued liabilities 782 8,816 Lease intangible liabilities, net 95 6,890 Security deposits and prepaid rent 1,339 6,233 Liabilities associated with real estate held for sale $ 2,216 $ 236,623
Schedule of Real Estate Held-for-sale	The following table summarizes properties classified as held for sale as of December 31, 2017: Property Purchase and Sale Executed Square Feet Sales Price (1) (in millions) 2180 Sand Hill November 2017 45,613 $ 82.5 2600 Campus Drive (building 6 of Peninsula Office Park) December 2017 63,050 22.5 Embarcadero Place December 2017 197,402 136.0 9300 Wilshire December 2017 61,422 13.8 Total 367,487 $ 254.8 ____________ (1) Represents gross sales price before certain credits, prorations and closing costs.

Deferred Leasing Costs and Le29

Deferred Leasing Costs and Lease Intangibles, net (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets and Liabilities	The following summarizes the Company’s deferred leasing costs and lease intangibles, net as of December 31, 2017 December 31, 2016 Above-market leases $ 19,222 $ 23,075 Accumulated amortization (15,731 ) (12,645 ) Above-market leases, net 3,491 10,430 Deferred leasing costs and in-place lease intangibles 311,599 343,807 Accumulated amortization (132,426 ) (129,830 ) Deferred leasing costs and in-place lease intangibles, net 179,173 213,977 Below-market ground leases 68,388 68,601 Accumulated amortization (6,498 ) (4,079 ) Below-market ground leases, net 61,890 64,522 Deferred leasing costs and lease intangible assets, net (1) $ 244,554 $ 288,929 Below-market leases $ 105,233 $ 127,950 Accumulated amortization (56,265 ) (55,689 ) Below-market leases, net 48,968 72,261 Above-market ground leases 1,095 1,095 Accumulated amortization (133 ) (89 ) Above-market ground leases, net 962 1,006 Lease intangible liabilities, net (1) $ 49,930 $ 73,267 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Amortization During Period	The Company recognized the following amortization related to deferred leasing costs and lease intangibles: For the Year Ended December 31, 2017 2016 2015 Above-market leases (1) $ (6,953 ) $ (11,259 ) $ (12,534 ) Below-market leases (1) 25,015 30,993 34,607 Deferred leasing costs and in-place lease intangibles (2) (72,883 ) (84,492 ) (91,965 ) Above-market ground leases (3) 43 43 46 Below-market ground leases (3) (2,548 ) (2,203 ) (1,688 ) _____________ (1) Amortization is recorded in revenues in the Consolidated Statements of Operations. (2) Amortization is recorded in depreciation and amortization expenses and office rental revenues in the Consolidated Statements of Operations. (3) Amortization is recorded in office operating expenses in the Consolidated Statements of Operations.
Schedule of Future Amortization Expense	The following table provides information regarding the Company’s estimated amortization of deferred leasing costs and lease intangibles as of December 31, 2017 : For the Year Ended December 31, Above-market lease Deferred lease cost and in-place lease intangibles Below-market ground lease Below-market lease Above-market ground lease 2018 $ (1,529 ) $ (41,300 ) $ (2,410 ) $ 14,713 $ 43 2019 (1,014 ) (31,533 ) (2,410 ) 11,317 43 2020 (466 ) (22,966 ) (2,410 ) 8,514 43 2021 (327 ) (18,224 ) (2,410 ) 6,084 43 2022 (106 ) (13,068 ) (2,410 ) 3,575 43 Thereafter (49 ) (52,082 ) (49,840 ) 4,765 747 Total (1) $ (3,491 ) $ (179,173 ) $ (61,890 ) $ 48,968 $ 962 _____________ (1) Excludes balances related to properties that have been classified as held for sale.
Schedule of Estimated Amortization Income	The following table provides information regarding the Company’s estimated amortization of deferred leasing costs and lease intangibles as of December 31, 2017 : For the Year Ended December 31, Above-market lease Deferred lease cost and in-place lease intangibles Below-market ground lease Below-market lease Above-market ground lease 2018 $ (1,529 ) $ (41,300 ) $ (2,410 ) $ 14,713 $ 43 2019 (1,014 ) (31,533 ) (2,410 ) 11,317 43 2020 (466 ) (22,966 ) (2,410 ) 8,514 43 2021 (327 ) (18,224 ) (2,410 ) 6,084 43 2022 (106 ) (13,068 ) (2,410 ) 3,575 43 Thereafter (49 ) (52,082 ) (49,840 ) 4,765 747 Total (1) $ (3,491 ) $ (179,173 ) $ (61,890 ) $ 48,968 $ 962 _____________ (1) Excludes balances related to properties that have been classified as held for sale.

Notes Payable, net (Tables)

Notes Payable, net (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	The following table sets forth information with respect to the amounts included in notes payable, net as of: December 31, 2017 December 31, 2016 Interest Rate (1) Contractual Maturity Date UNSECURED NOTES PAYABLE Unsecured Revolving Credit Facility (2) $ 100,000 $ 300,000 LIBOR + 1.15% to 1.85% 4/1/2019 (3) 5-Year Term Loan due April 2020 (2)(4) 300,000 450,000 LIBOR + 1.30% to 2.20% 4/1/2020 5-Year Term Loan due November 2020 (2) 75,000 175,000 LIBOR + 1.30% to 2.20% 11/17/2020 7-Year Term Loan due April 2022 (2)(5) 350,000 350,000 LIBOR + 1.60% to 2.55% 4/1/2022 7-Year Term Loan due November 2022 (2)(6) 125,000 125,000 LIBOR + 1.60% to 2.55% 11/17/2022 Series A Notes 110,000 110,000 4.34% 1/2/2023 Series E Notes 50,000 50,000 3.66% 9/15/2023 Series B Notes 259,000 259,000 4.69% 12/16/2025 Series D Notes 150,000 150,000 3.98% 7/6/2026 Registered Senior Notes (7) 400,000 — 3.95% 11/1/2027 Series C Notes 56,000 56,000 4.79% 12/16/2027 TOTAL UNSECURED NOTES PAYABLE 1,975,000 2,025,000 SECURED NOTES PAYABLE Rincon Center (8)(9) 98,392 100,409 5.13% 5/1/2018 Sunset Gower Studios/Sunset Bronson Studios 5,001 5,001 LIBOR + 2.25% 3/4/2019 (3) Met Park North (10) 64,500 64,500 LIBOR + 1.55% 8/1/2020 10950 Washington (8) 27,418 27,929 5.32% 3/11/2022 Element LA 168,000 168,000 4.59% 11/6/2025 Hill7 (11) 101,000 101,000 3.38% 11/6/2028 Pinnacle I (12) — 129,000 3.95% 11/7/2022 Pinnacle II (12) — 87,000 4.30% 6/11/2026 TOTAL SECURED NOTES PAYABLE 464,311 682,839 TOTAL NOTES PAYABLE 2,439,311 2,707,839 Held for sale balances (12) — (216,000 ) Unamortized deferred financing costs and loan discounts (13) (17,931 ) (18,513 ) TOTAL NOTES PAYABLE, NET $ 2,421,380 $ 2,473,326 _____________ (1) Interest rate with respect to indebtedness is calculated on the basis of a 360 -day year for the actual days elapsed. Interest rates are as of December 31, 2017 , which may be different than the interest rates as of December 31, 2016 for corresponding indebtedness. (2) The Company has the option to make an irrevocable election to change the interest rate depending on the Company’s credit rating. As of December 31, 2017 , no such election had been made. (3) The maturity date may be extended once for an additional one -year term. (4) In July 2016, $300.0 million of the term loan was effectively fixed at 2.75% to 3.65% per annum through the use of two interest rate swaps. See Note 6 for details. (5) In July 2016, the outstanding balance of the term loan was effectively fixed at 3.36% % to 4.31% per annum through the use of two interest rate swaps. See Note 6 for details. (6) In June 2016, the outstanding balance of the term loan was effectively fixed at 3.03% to 3.98% per annum through the use of an interest rate swap. See Note 6 for details. (7) On October 2, 2017, the Company completed an underwritten public offering of $400.0 million of senior notes, which were issued at 99.815% of par. (8) Monthly debt service includes annual debt amortization payments based on a 30 -year amortization schedule with a balloon payment at maturity. (9) On February 1, 2018, the Company repaid the full outstanding balance of the mortgage loan secured by our Rincon Center property. (10) This loan bears interest only. Interest on the full loan amount has been effectively fixed at 3.71 % per annum through use of an interest rate swap. See Note 6 for details. (11) The Company has a 55% ownership interest in the consolidated joint venture that owns the Hill7 property. The full amount of the loan is shown. This loan bears interest only at 3.38% until November 6, 2026, at which time the interest rate will increase and monthly debt service will include principle payments with a balloon payment at maturity. (12) On November 16, 2017, the Company sold its ownership interest in the consolidated joint venture that owned Pinnacle I and Pinnacle II. The debt balances related to these properties were classified as held for sale at December 31, 2016. (13) Excludes deferred financing costs related to properties held for sale and amounts related to establishing the Company’s unsecured revolving credit facility.
Schedule of Restricted Cash and Cash Equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash at the beginning and end of the periods presented: December 31, 2017 2016 2015 (1) Beginning of period: Cash and cash equivalents $ 83,015 $ 53,551 $ 17,753 Restricted cash 25,177 18,010 17,083 Total $ 108,192 $ 71,561 $ 34,836 End of period: Cash and cash equivalents $ 78,922 $ 83,015 $ 53,551 Restricted cash 22,358 25,177 18,010 Total $ 101,280 $ 108,192 $ 71,561 _____________ (1) Includes restricted cash that was previously included in assets held for sale as of December 31, 2014. Included in restricted cash on the Company’s Consolidated Balance Sheets at December 31, 2017 and December 31, 2016 are lockbox and reserve funds as follows: Property December 31, 2017 December 31, 2016 Rincon Center $ 14,220 $ 16,291 Element LA 3,581 2,627 Hill7 2,392 1,643 10950 Washington 1,406 1,249 Pinnacle I — 1,811 Pinnacle II — 1,382 Total $ 21,599 $ 25,003
Schedule of Maturities of Long-term Debt	The following table provides information regarding the Company’s future minimum principal payments due on the Company’s notes payable (before the impact of extension options, if applicable) as of December 31, 2017 : For the Year Ended December 31, Annual Principal Payments 2018 $ 98,930 2019 105,569 2020 440,095 2021 632 2022 500,085 Thereafter 1,294,000 Total $ 2,439,311
Schedule of Balance and Key Terms of the Unsecured Revolving Credit Facility	The following table summarizes borrowing capacity and outstanding borrowings under the unsecured revolving credit facility as of: December 31, 2017 December 31, 2016 Outstanding borrowings (1) $ 100,000 $ 300,000 Remaining borrowing capacity (1) 300,000 100,000 Total borrowing capacity $ 400,000 $ 400,000 Interest rate (2) LIBOR + 1.15% to 1.85% Facility fee-annual rate (2) 0.20% or 0.35% Contractual maturity date (3) 4/1/2019 _________________ (1) On January 30, 2018, the Company borrowed an additional $100.0 million bringing the total outstanding borrowings to $200.0 million . (2) The rate is based on the operating partnership’s leverage ratio. (3) The maturity date may be extended once for an additional one -year term.
Summary of Existing Covenants and Their Covenant Levels	The following table summarizes existing covenants and their covenant levels, when considering the most restrictive term: Covenant Ratio Covenant Level Leverage ratio less than 60% Unencumbered leverage ratio less than 60% Fixed charge coverage ratio greater than 1.5x Secured indebtedness leverage ratio less than 45% Unsecured interest coverage ratio greater than 2x
Reconciliation of Gross Interest Expense and Interest Expense	The following table represents a reconciliation from the gross interest expense to the amount on the interest expense line item in the Consolidated Statements of Operations: Year Ended December 31, 2017 2016 2015 Gross interest expense (1) $ 94,660 $ 82,887 $ 52,437 Capitalized interest (10,655 ) (11,307 ) (6,516 ) Amortization of deferred financing costs and loan discount/premium, net 6,032 4,464 4,746 Interest expense $ 90,037 $ 76,044 $ 50,667 _________________ (1) Includes interest on the Company’s notes payable and hedging activities and extinguishment costs related to partial paydowns in our term loans of $1.1 million during the year ended December 31, 2017.

Future Minimum Base Rents and31

Future Minimum Base Rents and Lease Payments Future Minimum Rents (Tables)	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	The following table summarizes the future minimum base rents (excluding tenant reimbursements for operating expenses and termination fees related to tenants exercising early termination options) for properties as of December 31, 2017 : Year ended Non-cancellable Subject to early termination options Total (1)(2) 2018 $ 476,777 $ 4,002 $ 480,779 2019 445,032 11,775 456,807 2020 376,361 20,232 396,593 2021 315,588 32,772 348,360 2022 246,997 45,437 292,434 Thereafter 805,449 124,383 929,832 Total $ 2,666,204 $ 238,601 $ 2,904,805 _____________ (1) Excludes rents under leases at the Company’s media and entertainment properties with terms of one year or less. (2) Includes properties classified as held for sale as of December 31, 2017.
Operating Leases of Lessee Disclosure	The following table summarizes the Company’s ground lease terms related to properties that are held subject to long-term non-cancellable ground lease obligations as of December 31, 2017 : Property Expiration Date Notes 3400 Hillview 10/31/2040 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent until October 31, 2017 is the lesser of 10% of Fair Market Value (“FMV”) of the land or $1.0 million grown at 75% of the cumulative increases in consumer price index (“CPI”) from October 1989. Thereafter, minimum annual rent is the lesser of 10% of FMV of the land or the minimum annual rent as calculated as of November 1, 2017 plus 75% of subsequent cumulative CPI changes. Percentage annual rent is gross income multiplied by 24.125%. This lease was prepaid through October 31, 2017. 9300 Wilshire 8/14/2032 The ground rent is the greater of minimum annual rent or percentage annual rent. Percentage annual rent is gross income multiplied by 6%. The property related to this ground lease is expected to be sold in the first quarter of 2018. Clocktower Square 9/26/2056 The ground rent is minimum annual rent (adjusted every 10 years) plus 25% of adjusted gross income (“AGI”) less minimum annual rent. Del Amo 6/30/2049 Rent under the ground sublease is $1.00 per year, with the sublessee being responsible for all impositions, insurance premiums, operating charges, maintenance charges, construction costs and other charges, costs and expenses that arise or may be contemplated under any provisions of the ground sublease. Foothill Research Center 6/30/2039 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent is the lesser of 10% of FMV of the land or the previous year’s minimum annual rent plus 75% of CPI increase. Percentage annual rent is gross income multiplied by 24.125%. 3176 Porter (formerly Lockheed) 7/31/2040 The ground rent is the greater of the minimum annual rent or percentage annual rent. The minimum annual rent is the lesser of 10% of FMV of the land or the previous year’s minimum annual rent plus 75% of CPI increase. Percentage annual rent is Lockheed’s base rent multiplied by 24.125%. Metro Center 4/29/2054 Every 10 years rent adjusts to 7.233% of FMV of the land (since 2008) and adjusts to reflect the change in CPI from the preceding FMV adjustment date (since 2013). Page Mill Center 11/30/2041 The ground rent is minimum annual rent (adjusted on 1/1/2019 and 1/1/2029) plus 25% of AGI, less minimum annual rent. Page Mill Hill 11/17/2049 The ground rent is minimum annual rent (adjusted every 10 years) plus 60% of the average of the percentage annual rent for the previous 7 lease years. Palo Alto Square 11/30/2045 The ground rent is minimum annual rent (adjusted every 10 years starting 1/1/2022) plus 25% of AGI less minimum annual rent. Sunset Gower Studios 3/31/2060 Every 7 years rent adjusts to 7.5% of FMV of the land. Techmart 5/31/2053 Rent subject to a 10% increase every 5 years.
Schedule of Future Minimum Lease Payments	The following table summarizes rental expense for ground leases and a corporate office lease: For the Year Ended December 31, 2017 2016 2015 Contingent rental expense $ 8,775 $ 8,651 $ 3,843 Minimum rental expense 12,412 12,085 9,196 The following table provides information regarding the Company’s future minimum lease payments for its ground leases (before the impact of extension options, if applicable) as of December 31, 2017 : For the Year Ended December 31, Ground Leases (1)(2) 2018 $ 14,111 2019 14,161 2020 14,161 2021 14,161 2022 14,161 Thereafter 382,070 Total $ 452,825 _____________ (1) In situations where ground lease obligation adjustments are based on third-party appraisals of fair market land value, CPI adjustments and/or percentage of gross income that exceeds the minimum annual rent, the future minimum lease amounts above include the lease rental obligations in effect as of December 31, 2017 . (2) Balance includes future minimum ground lease obligation for 9300 Wilshire which is expected to be sold in the first quarter of 2018.

Fair Value of Financial Instr32

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities, Recurring	The Company’s financial assets and liabilities measured and reported at fair value on a recurring basis include the following as of: December 31, 2017 December 31, 2016 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Derivative assets (1) $ — $ 12,586 $ — $ 12,586 $ — $ 5,935 $ — $ 5,935 Derivative liabilities — 265 — 265 — 1,303 — 1,303 _____________ (1) Included in the prepaid expenses and other assets, net line item in the Consolidated Balance Sheets.
Fair Value Measurements, Recurring and Nonrecurring	The table below represents the carrying value and fair value of the Company’s notes payable as of: December 31, 2017 December 31, 2016 Carrying Value Fair Value Carrying Value Fair Value Unsecured notes payable (1)(2) $ 1,974,278 $ 1,960,560 $ 2,025,000 $ 2,011,210 Secured notes payable (3) 464,311 458,441 682,839 669,924 _____________ (1) Amounts represent notes payable excluding unamortized deferred financing costs. (2) The $400.0 million senior registered notes were issued at a discount. The discount, net of amortization was $722 thousand at December 31, 2017 and is included within unsecured notes payable. (3) Includes balances related to properties that have been classified as held for sale.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Key Components of Share-based Awards	The following table outlines key components of the 2017 and 2016 OPP Plans: 2017 OPP Plan 2016 OPP Plan Maximum bonus pool, in millions $20.0 $17.5 Performance period 1/1/2017 to 12/31/2019 1/1/2016 to 12/31/2018
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions	The per unit fair value of one-time retention award granted was estimated on the date of grant using the following assumptions in the Monte Carlo valuation: Assumptions Expected price volatility for the Company 23.00% Expected price volatility for the particular REIT index 18.00% Risk-free rate 1.63% Dividend yield 3.20 The per unit fair value of OPP award granted was estimated on the date of grant using the following assumptions in the Monte Carlo valuation: 2017 2016 2015 Expected price volatility for the Company 24.00% 24.00% 22.00% Expected price volatility for the particular REIT index 17.00% 17.00% 22.00% Risk-free rate 1.47% 1.09% 1.13% Dividend yield 2.30 2.40 1.50
Nonvested Restricted Stock Shares Activity	The following table summarizes the activity and status of all unvested awards: 2017 2016 2015 Shares Weighted-Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Unvested at January 1 887,179 $ 31.09 827,950 $ 28.92 543,707 $ 26.43 Granted 918,884 34.37 489,826 30.95 629,504 29.01 Vested (705,508 ) 31.42 (430,597 ) 26.75 (335,544 ) 24.80 Canceled (13,369 ) 32.14 — — (9,717 ) 38.17 Unvested at December 31 1,087,186 $ 33.64 887,179 $ 31.09 827,950 $ 28.92 Year Ended December 31, Non-Vested Shares Issued Weighted Average Grant-Date Fair Value Vested Shares Total Vest-Date Fair Value (in thousands) 2017 918,884 $ 34.37 (705,508 ) $ 24,155 2016 489,826 30.95 (430,597 ) 14,736 2015 629,504 29.01 (335,544 ) 9,606
Stock Compensation Related to OPP Plans and Restricted Stock Awards	The following table presents the classification and amount recognized for stock-based compensation related to the Company’s awards: For the Year Ended December 31, 2017 2016 2015 Expensed stock compensation (1) $ 15,079 $ 14,144 $ 8,421 Capitalized stock compensation (2) 836 510 411 Total stock compensation (3) $ 15,915 $ 14,654 $ 8,832 _________________ (1) Amounts are recorded in general and administrative expenses in the Consolidated Statements of Operations. (2) Amounts are recorded in deferred leasing costs and lease intangible assets, net and investment in real estate, at cost in the Consolidated Balance Sheets. (3) Amounts are recorded in additional paid-in capital and non-controlling interest—units in the operating partnership in the Consolidated Balance Sheets.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table reconciles the numerator and denominator in computing the Company’s basic and diluted earnings per share for net income (loss) available to common stockholders: For the Year Ended December 31, 2017 2016 2015 Numerator: Basic net income (loss) available to common stockholders $ 67,587 $ 27,218 $ (16,397 ) Effect of dilutive instruments — 451 — Diluted net income (loss) available to common stockholders $ 67,587 $ 27,669 $ (16,397 ) Denominator: Basic weighted average common shares outstanding 153,488,730 106,188,902 85,927,216 Effect of dilutive instruments (1) 394,084 4,180,153 — Diluted weighted average common shares outstanding 153,882,814 110,369,055 85,927,216 Basic earnings per common share $ 0.44 $ 0.26 $ (0.19 ) Diluted earnings per common share $ 0.44 $ 0.25 $ (0.19 ) _____________ (1) The Company includes unvested awards and convertible common units as contingently issuable shares in the computation of diluted earnings per share once the market criteria are met, assuming that the end of the reporting period is the end of the contingency period. Any anti-dilutive securities are excluded from the diluted earnings per share calculation. The following table reconciles the numerator and denominator in computing the operating partnership’s basic and diluted earnings per unit for net income (loss) available to common unitholders: For the Year Ended December 31, 2017 2016 2015 Numerator: Basic net income (loss) available to common unitholders $ 67,962 $ 33,066 $ (38,366 ) Effective of dilutive instruments — 451 — Diluted net income (loss) available to common unitholders $ 67,962 $ 33,517 $ (38,366 ) Denominator: Basic weighted average common units outstanding 154,276,773 145,595,246 128,948,077 Effect of dilutive instruments (1) 394,084 1,144,000 — Diluted weighted average common units outstanding 154,670,857 146,739,246 128,948,077 Basic earnings per common unit $ 0.44 $ 0.23 $ (0.30 ) Diluted earnings per common unit $ 0.44 $ 0.23 $ (0.30 ) _____________ (1) The operating partnership includes unvested awards as contingently issuable units in the computation of diluted earnings per unit once the market criteria are met, assuming that the end of the reporting period is the end of the contingency period. Any anti-dilutive securities are excluded from the diluted earnings per unit calculation.

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The table below presents the effect of the Company’s derivatives on accumulated other comprehensive income (“OCI”): Hudson Pacific Properties, Inc. Stockholder’s Equity Non-controlling interests Total Equity Balance at January 1, 2015 $ (2,443 ) $ (218 ) $ (2,661 ) Unrealized loss recognized in OCI due to change in fair value (4,976 ) (2,687 ) (7,663 ) Loss reclassified from OCI into income (as interest expense) 6,338 3,922 10,260 Net change in OCI 1,362 1,235 2,597 Balance at December 31, 2015 (1,081 ) 1,017 (64 ) Unrealized loss recognized in OCI due to change in fair value 4,122 (6,989 ) (2,867 ) Loss reclassified from OCI into income (as interest expense) 6,455 2,354 8,809 Net change in OCI 10,577 (4,635 ) 5,942 Balance at December 31, 2016 9,496 (3,618 ) 5,878 Unrealized loss recognized in OCI due to change in fair value 3,011 18 3,029 Loss reclassified from OCI into income (as interest expense) 4,342 27 4,369 Net change in OCI 7,353 45 7,398 Reclassification related to redemption of common units in the operating partnership (3,622 ) 3,622 — Balance at December 31, 2017 $ 13,227 $ 49 $ 13,276
Schedule of Other Ownership Interests	The following table summarizes the ownership of common units, excluding unvested restricted units as of: December 31, 2017 December 31, 2016 December 31, 2015 Company-owned common units in the operating partnership 155,602,508 136,492,235 89,153,780 Company’s ownership interest percentage 99.6 % 93.5 % 61.3 % Non-controlling common units in the operating partnership (1) 569,045 9,450,620 56,296,315 Non-controlling ownership interest percentage (1) 0.4 % 6.5 % 38.7 % _____________ (1) Represents common units held by certain of the Company’s executive officers and directors, certain of their affiliates and other outside investors.
Non-controlling Interests	The following table summarizes the activity related to common units from January 1, 2016 to December 31, 2017 : Non-controlling interest in common units Balance at January 1, 2016 56,296,315 May redemption (1) (10,117,223 ) July redemption (1) (19,195,373 ) November redemption (1) (17,533,099 ) Balance at December 31, 2016 9,450,620 January redemption (1) (8,881,575 ) Balance at December 31, 2017 569,045 _____________ (1) The common unitholders requested the operating partnership repurchase common units and the Company elected, in accordance with the limited partnership agreement of the operating partnership, to settle in cash to satisfy the redemption. The Company funded the redemptions using the proceeds from registered underwritten public offering of common stock.
Reconciliation Of Equity From Statement Of Equity To Statement Of Operations	The following table reconciles the net income (loss) allocated to common stock and operating partnership units on the Consolidated Statements of Equity to the common stock and the common unit net income (loss) allocation on the Consolidated Statements of Operations for the years ended: Hudson Pacific Properties, Inc. Hudson Pacific Properties, L.P. 2017 2016 2015 2017 2016 2015 Net income (loss) allocation for common stock/units on the Consolidated Statements of Equity/Capital $ 68,590 $ 27,984 $ (10,071 ) $ 68,965 $ 33,832 $ (32,040 ) Net income attributable to participating securities (1,003 ) (766 ) (356 ) (1,003 ) (766 ) (356 ) Series B transaction costs allocation — — (5,970 ) — — (5,970 ) Net income (loss) allocation for common stock/units on the Consolidated Statements of Operations $ 67,587 $ 27,218 $ (16,397 ) $ 67,962 $ 33,066 $ (38,366 )
Schedule of Common Stock Offering	The following table summarizes the common stock offering in 2015, 2016 and 2017: Number of Common Shares January 20, 2015 (1) 12,650,000 April 1, 2015 (2) 8,626,311 May 16, 2016 (3) 10,117,223 July 21, 2016 (3) 19,195,373 November 28, 2016 (3) 17,533,099 January 10, 2017 (3) 8,881,575 March 3, 2017 (4) 9,775,000 _____________ (1) Represents a common stock offering of 11,000,000 shares of common stock and the exercise of the underwriters’ option to purchase an additional 1,650,000 shares of our common stock at the public offering price of $31.75 per share. Total proceeds from the public offering, after underwriters’ discount, were approximately $385.6 million (before transaction costs). (2) Represents a common stock issuance in connection with the EOP Acquisition. The issuance of common stock is part of the consideration paid. (3) Proceeds from the offering were used to repurchase common units in the operating partnership. (4) Represents a common stock offering of 9,775,000 shares of common stock. Proceeds from the offering were used to fully repay a $255.0 million balance outstanding under its unsecured revolving credit facility. The following table summarizes the ATM activity: 2017 2016 2015 Shares of common stock sold during the period — 165,000 — Common stock price ranges N/A $33.54 to $33.95 N/A
Schedule of Dividends	The Company’s dividends related to its common stock will be classified for U.S. federal income tax purposes as follows (unaudited): Ordinary Dividends Record Date Payment Date Distributions Per Share Total Non-qualified Qualified Capital Gain Distributions (1) Return of Capital 3/20/2017 3/30/2017 $ 0.25000 $ 0.14633 $ 0.14633 $ — $ 0.04023 $ 0.06345 6/20/2017 6/30/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 9/19/2017 9/29/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 12/18/2017 12/28/2017 0.25000 0.14633 0.14633 — 0.04023 0.06345 Totals $ 1.00000 $ 0.58532 $ 0.58532 $ — $ 0.16092 $ 0.25380 100 % 58.532 % 16.09 % 25.38 % _____________ (1) $0.03000 of the $0.04023 capital gain distributions should be characterized as unrecaptured Section 1250 gain.

Quarterly Financial Informati36

Quarterly Financial Information (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The tables below present selected quarterly information for 2017 and 2016 for the Company: For the Three Months Ended (1) December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017 Total revenues $ 189,333 $ 190,021 $ 180,500 $ 168,285 Income from operations 43,832 36,160 28,108 28,503 Net income 48,944 14,510 6,954 24,153 Net income attributable to the Company’s stockholders 32,455 11,064 3,553 20,515 Net income attributable to common stockholders’ per share—basic 0.21 0.07 0.02 0.14 Net income attributable to common stockholders’ per share—diluted 0.21 0.07 0.02 0.14 For the Three Months Ended (1) December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016 Total revenues $ 167,198 $ 164,583 $ 154,321 $ 153,537 Income from operations 26,845 23,740 19,811 19,011 Net income 28,530 5,217 4,035 5,976 Net income attributable to the Company’s stockholders 22,279 1,847 839 2,253 Net income attributable to common stockholders’ per share—basic 0.18 0.02 0.01 0.03 Net income attributable to common stockholders’ per share— diluted 0.18 0.02 0.01 0.03 _____________ (1) The summation of the quarterly financial data may not equal the annual number reported on the consolidated statements of operations due to rounding.

Organization (Details)

Organization (Details) $ in Millions	Apr. 01, 2015USD ($)ft²projectpropertyshares	Dec. 31, 2017ft²property
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		14,541,458
Number of Properties | property		54
Office
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		13,291,531
Number of Properties | property		51
Media & Entertainment
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²		1,249,927
Number of Properties | property		3
EOP Northern California Portfolio
Business Acquisition [Line Items]
Net rentable area (in square feet) | ft²	8,200,000
Payments to acquire businesses | $	$ 1,750
Shares issued as consideration for business combination | shares	63,474,791
EOP Northern California Portfolio | Office Building
Business Acquisition [Line Items]
Number of real estate properties acquired | property	26
EOP Northern California Portfolio | Development Parcel
Business Acquisition [Line Items]
Number of real estate development projects acquired | project	2

Summary of Significant Accoun38

Summary of Significant Accounting Policies - Narrative (Details)	Nov. 16, 2017	Dec. 31, 2017USD ($)revenue_streampropertyjoint_venturesegment	Dec. 31, 2016USD ($)property	Dec. 31, 2015USD ($)
Accounting Policies [Line Items]
Number of real estate properties, held-for-sale | property		4	8
Investment in unconsolidated entities		$ 14,240,000	$ 37,228,000
Construction costs capitalization period after substantially complete		1 year
Capitalized personnel costs		$ 10,853,000	9,347,000	$ 7,349,000
Capitalized interest		10,655,000	11,307,000	6,516,000
Impairment of long-lived assets		0	0	0
Net cash provided by operating activities		$ 292,959,000	226,774,000	175,783,000
Number of operating segments | segment		2
Income tax expense		$ 0
Number of revenue streams identified | revenue_stream		3
Number of revenue streams to be accounted for under ASC 606 | revenue_stream		2
Rental revenues and tenant recoveries		$ 675,600,000
Capitalized indirect leasing costs		8,900,000
Future undiscounted minimum lease payments under ground leases		$ 452,825,000
Accounting Standards Update 2016-18
Accounting Policies [Line Items]
Net cash provided by operating activities			$ 7,200,000	$ 900,000
Building and improvements
Accounting Policies [Line Items]
Estimated useful life		39 years
Land improvements
Accounting Policies [Line Items]
Estimated useful life		15 years
Furniture and fixtures | Minimum
Accounting Policies [Line Items]
Estimated useful life		5 years
Furniture and fixtures | Maximum
Accounting Policies [Line Items]
Estimated useful life		7 years
VIE, primary beneficiary
Accounting Policies [Line Items]
Number of joint ventures meeting the VIE definition | joint_venture		3
Number of joint ventures consolidated | joint_venture		2
VIE, primary beneficiary | Pinnacle I and II
Accounting Policies [Line Items]
VIE, ownership percentage	65.00%
VIE, primary beneficiary | 1455 Market
Accounting Policies [Line Items]
VIE, ownership percentage		55.00%
VIE, primary beneficiary | Hill7
Accounting Policies [Line Items]
VIE, ownership percentage		55.00%
VIE, not primary beneficiary
Accounting Policies [Line Items]
Number of joint ventures not consolidated | joint_venture		1
VIE, ownership percentage		21.00%

Summary of Significant Accoun39

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents and Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Cash and cash equivalents	$ 78,922	$ 83,015	$ 53,551	$ 17,753
Restricted cash	22,358	25,177	18,010	17,083
Total cash and cash equivalents and restricted cash	$ 101,280	$ 108,192	$ 71,561	$ 34,836

Summary of Significant Accoun40

Summary of Significant Accounting Policies - Accounts Receivable Net of Allowance for Uncollectable Tenant Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 6,835	$ 8,834
Allowance for doubtful accounts	(2,472)	(1,827)
Accounts receivable, net	4,363	7,007
Straight-line rent receivables, net	109,457	79,209
Allowance for Straight-Line Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Straight-line rent receivables	109,457	79,345
Allowance for doubtful accounts	$ 0	$ (136)

Summary of Significant Accoun41

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Variable Interest Entities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Investment in unconsolidated entities	$ 14,240	$ 37,228
Goodwill	8,754	8,754
Derivative assets	12,586	5,935
Other	25,558	25,297
Prepaid expenses and other assets, net	$ 61,138	$ 77,214

Summary of Significant Accoun42

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Security Deposits and Prepaid Rent (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Security deposits	$ 36,458	$ 29,837
Prepaid rent	27,573	37,041
Security deposits and prepaid rent	$ 64,031	$ 66,878

Investment in Real Estate - Rea

Investment in Real Estate - Real Estate Investment Property (Details) $ in Thousands	1 Months Ended						12 Months Ended
	Jun. 30, 2017USD ($)ft²	May 31, 2017USD ($)ft²a	Apr. 30, 2017USD ($)	Dec. 31, 2016USD ($)ft²	Oct. 31, 2016USD ($)ft²	Jul. 31, 2016USD ($)ft²	Dec. 31, 2017USD ($)ft²	Dec. 31, 2016USD ($)ft²	Jun. 29, 2017USD ($)	May 01, 2017USD ($)
Business Acquisition [Line Items]
Land				$ 1,155,037			$ 1,302,907	$ 1,155,037
Building and improvements				4,069,005			4,480,993	4,069,005
Tenant improvements				354,940			411,706	354,940
Furniture and fixtures				4,264			8,608	4,264
Property under development				295,234			219,227	295,234
Investment in real estate, at cost				5,878,480			$ 6,423,441	$ 5,878,480
Area of real estate acquired | ft²							373,150	968,831
Purchase price of properties acquired, asset acquisitions							$ 253,200
Purchase price of properties acquired								$ 640,800
Area of real estate property | ft²							367,487
Notes payable							$ 2,439,311
Investment in real estate, asset acquisitions							255,848
Deferred leasing costs and lease intangibles, asset acquisitions				36,198			1,886	36,198
Total assets assumed				637,981			$ 257,734	637,981
Deferred leasing costs and in-place lease intangibles
Business Acquisition [Line Items]
Weighted average amortization period							1 year 2 months 15 days
Secured Debt | Hill7
Business Acquisition [Line Items]
Notes payable				101,000				101,000
Sunset Las Palmas Studios
Business Acquisition [Line Items]
Asset acquisition, equipment purchased		$ 2,800
Investment in real estate, asset acquisitions										$ 202,723
Deferred leasing costs and lease intangibles, asset acquisitions										1,741
Total assets assumed										204,464
Sunset Las Palmas Studios | Revolving Credit Facility
Business Acquisition [Line Items]
Proceeds from unsecured lines of credit			$ 150,000
11601 Wilshire Land
Business Acquisition [Line Items]
Investment in real estate, asset acquisitions										50,034
Deferred leasing costs and lease intangibles, asset acquisitions										0
Total assets assumed										$ 50,034
6666 Santa Monica
Business Acquisition [Line Items]
Investment in real estate, asset acquisitions									$ 3,091
Deferred leasing costs and lease intangibles, asset acquisitions									145
Total assets assumed									$ 3,236
Hill7
Business Acquisition [Line Items]
Joint venture, ownership percentage					55.00%
Deferred leasing costs and lease intangibles, asset acquisitions				7,617				7,617
Total assets assumed				180,167				180,167
Page Mill Hill
Business Acquisition [Line Items]
Deferred leasing costs and lease intangibles, asset acquisitions				14,697				14,697
Total assets assumed				$ 149,895				$ 149,895
Media & Entertainment | Sunset Las Palmas Studios
Business Acquisition [Line Items]
Area of real estate acquired | ft²		369,000
Purchase price of properties acquired, asset acquisitions		$ 200,000
Area of real estate property | a		15
Media & Entertainment | 6666 Santa Monica
Business Acquisition [Line Items]
Area of real estate acquired | ft²	4,150
Purchase price of properties acquired, asset acquisitions	$ 3,200
Office | 11601 Wilshire
Business Acquisition [Line Items]
Area of real estate acquired | ft²						500,475
Purchase price of properties acquired, business acquisitions						$ 311,000
Office | 11601 Wilshire Land
Business Acquisition [Line Items]
Purchase price of properties acquired, asset acquisitions	$ 50,000
Office | Hill7
Business Acquisition [Line Items]
Area of real estate acquired | ft²					285,680
Purchase price of properties acquired, asset acquisitions					$ 179,800
Office | Page Mill Hill
Business Acquisition [Line Items]
Area of real estate acquired | ft²				182,676
Purchase price of properties acquired, asset acquisitions				$ 150,000

Investment in Real Estate - Pur

Investment in Real Estate - Purchase Price Allocation for Acquisition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Asset acquisition, allocation of consideration paid
Investment in real estate	$ 597,751
Land Interest	7,836
Above-market leases	474
Below-market ground leases	12,337
Deferred leasing costs and lease intangibles	36,198	$ 1,886
Below-market leases	(16,615)
Total assets assumed	$ 637,981	$ 257,734
Below Market Lease
Asset acquisition, allocation of consideration paid
Weighted average amortization period	6 years 4 months 20 days
Above-market leases
Asset acquisition, allocation of consideration paid
Weighted average amortization period	5 years 4 months 20 days
Below-market ground leases
Asset acquisition, allocation of consideration paid
Weighted average amortization period	33 years 2 months
Deferred Leasing Costs and Lease Intangibles, Net
Asset acquisition, allocation of consideration paid
Weighted average amortization period	5 years 9 months
Hill7
Asset acquisition, allocation of consideration paid
Investment in real estate	$ 173,967
Land Interest	0
Above-market leases	0
Below-market ground leases	0
Deferred leasing costs and lease intangibles	7,617
Below-market leases	(1,417)
Total assets assumed	180,167
Page Mill Hill
Asset acquisition, allocation of consideration paid
Investment in real estate	131,402
Land Interest	0
Above-market leases	307
Below-market ground leases	12,125
Deferred leasing costs and lease intangibles	14,697
Below-market leases	(8,636)
Total assets assumed	149,895
11601 Wilshire
Business combination, allocation of consideration paid
Investment in real estate, net	292,382
Land Interest	7,836
Above-market leases	167
Below-market ground leases	212
Deferred leasing costs and lease intangibles	13,884
Below-market leases	(6,562)
Total assets assumed, asset acquisition	$ 307,919

Investment in Real Estate - Sch

Investment in Real Estate - Schedule of Dispositions (Details) $ in Thousands

1 Months Ended

12 Months Ended

Nov. 30, 2017USD ($)ft²

Mar. 31, 2017USD ($)ft²

Feb. 28, 2017USD ($)ft²

Nov. 30, 2016USD ($)ft²

Jun. 30, 2016USD ($)ft²

Apr. 30, 2016USD ($)ft²

Jan. 31, 2016USD ($)ft²

Sep. 29, 2015USD ($)ft²

May 31, 2015USD ($)ft²

Dec. 31, 2017USD ($)ft²

Dec. 31, 2016USD ($)ft²

Dec. 31, 2015USD ($)ft²

Nov. 16, 2017USD ($)

Jan. 07, 2015

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

823,261

921,343

483,862

Sales Price

$ 436,800

$ 367,400

$ 179,000

Disposal Group, Not Discontinued Operations

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Notes payable, held-for-sale

$ 0

$ 216,000

222 Kearny Street

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

148,797

Sales Price

$ 51,800

3402 Pico

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

50,687

Sales Price

$ 35,000

Pinnacle I and II

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

623,777

Sales Price

$ 350,000

Pinnacle I and II | Disposal Group, Not Discontinued Operations

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Notes payable, held-for-sale

$ 216,000

Bayhill Office Center

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

554,328

Sales Price

$ 215,000

Patrick Henry

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

70,520

Sales Price

$ 19,000

One Bay Plaza

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

195,739

Sales Price

$ 53,400

12655 Jefferson

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

100,756

Sales Price

$ 80,000

First Financial

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

223,679

Sales Price

$ 89,000

Bay Park Plaza

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Area of real estate property | ft²

260,183

Sales Price

$ 90,000

1455 Market

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Joint venture, ownership percentage

45.00%

Investment in Real Estate - Nar

Investment in Real Estate - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)ft²property	Dec. 31, 2016USD ($)property	Dec. 31, 2015USD ($)	Nov. 30, 2017USD ($)ft²
Business Acquisition [Line Items]
Gains on sale of real estate	$ 45,574	$ 30,389	$ 30,471
Gain related to sale of an option to purchase land		$ 7,500
Number of real estate properties, held-for-sale | property	4	8
Area of real estate property | ft²	367,487
Proceeds from disposition of real estate held-for-sale	$ 254,800
2180 Sand Hill Road
Business Acquisition [Line Items]
Area of real estate property | ft²				45,613
Proceeds from disposition of real estate held-for-sale				$ 82,500
2600 Campus Drive
Business Acquisition [Line Items]
Area of real estate property | ft²	63,050
Proceeds from disposition of real estate held-for-sale	$ 22,500
Embarcadero Place
Business Acquisition [Line Items]
Area of real estate property | ft²	197,402
Proceeds from disposition of real estate held-for-sale	$ 136,000
9300 Wilshire
Business Acquisition [Line Items]
Area of real estate property | ft²	61,422
Proceeds from disposition of real estate held-for-sale	$ 13,800

Investment in Real Estate - R47

Investment in Real Estate - Real Estate Held-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets associated with real estate held for sale	$ 211,335	$ 615,174
Liabilities associated with real estate held for sale	2,216	236,623
Disposal Group, Held-for-sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investment in real estate, net	204,895	580,261
Accounts receivable, net	85	183
Straight-line rent receivables, net	2,234	8,849
Deferred leasing costs and lease intangible assets, net	4,063	23,078
Prepaid expenses and other assets, net	58	2,803
Assets associated with real estate held for sale	211,335	615,174
Notes payable, net	0	214,684
Accounts payable and accrued liabilities	782	8,816
Lease intangible liabilities, net	95	6,890
Security deposits and prepaid rent	1,339	6,233
Liabilities associated with real estate held for sale	$ 2,216	$ 236,623

Deferred Leasing Costs and Le48

Deferred Leasing Costs and Lease Intangibles, net (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Net [Abstract]
Deferred leasing costs and lease intangibles, net	$ 244,554	$ 288,929
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Off-market leases, net	49,930	73,267
Above-market leases
Finite-Lived Intangible Assets, Net [Abstract]
Deferred leasing costs and lease intangibles	19,222	23,075
Accumulated amortization	(15,731)	(12,645)
Deferred leasing costs and lease intangibles, net	3,491	10,430
Deferred leasing costs and in-place lease intangibles
Finite-Lived Intangible Assets, Net [Abstract]
Deferred leasing costs and lease intangibles	311,599	343,807
Accumulated amortization	(132,426)	(129,830)
Deferred leasing costs and lease intangibles, net	179,173	213,977
Below-market ground leases
Finite-Lived Intangible Assets, Net [Abstract]
Deferred leasing costs and lease intangibles	68,388	68,601
Accumulated amortization	(6,498)	(4,079)
Deferred leasing costs and lease intangibles, net	61,890	64,522
Below-market leases
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Below-market leases, net	105,233	127,950
Above-market ground leases, net	(56,265)	(55,689)
Off-market leases, net	48,968	72,261
Above-market ground leases
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Below-market leases, net	1,095	1,095
Above-market ground leases, net	(133)	(89)
Off-market leases, net	$ 962	$ 1,006

Deferred Leasing Costs and Le49

Deferred Leasing Costs and Lease Intangibles, net - Future Amortization Expense For Finitle-lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of above- and below-market leases, net	$ (18,062)	$ (19,734)	$ (22,073)
Deferred leasing costs and lease intangibles, net	(244,554)	(288,929)
Above-market leases
Finite-Lived Intangible Assets [Line Items]
Amortization of above- and below-market leases, net	(6,953)	(11,259)	(12,534)
2,018	(1,529)
2,019	(1,014)
2,020	(466)
2,021	(327)
2,022	(106)
Thereafter	(49)
Deferred leasing costs and lease intangibles, net	(3,491)	(10,430)
Deferred leasing costs and in-place lease intangibles
Finite-Lived Intangible Assets [Line Items]
Amortization of above- and below-market leases, net	(72,883)	(84,492)	(91,965)
2,018	(41,300)
2,019	(31,533)
2,020	(22,966)
2,021	(18,224)
2,022	(13,068)
Thereafter	(52,082)
Deferred leasing costs and lease intangibles, net	(179,173)	(213,977)
Below-market ground leases
Finite-Lived Intangible Assets [Line Items]
Amortization of above- and below-market leases, net	(2,548)	(2,203)	$ (1,688)
2,018	(2,410)
2,019	(2,410)
2,020	(2,410)
2,021	(2,410)
2,022	(2,410)
Thereafter	(49,840)
Deferred leasing costs and lease intangibles, net	$ (61,890)	$ (64,522)

Deferred Leasing Costs and Le50

Deferred Leasing Costs and Lease Intangibles, net - Future Amortization Expense For Finite-lived Intangible Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Amortization of above- and below-market leases, net	$ (18,062)	$ (19,734)	$ (22,073)
Off-market leases, net	49,930	73,267
Below-market leases
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Amortization of above- and below-market leases, net	25,015	30,993	34,607
2,018	14,713
2,019	11,317
2,020	8,514
2,021	6,084
2,022	3,575
Thereafter	4,765
Off-market leases, net	48,968	72,261
Above-market ground leases
Intangible Liability, Amortization Expense, Maturity Schedule [Line Items]
Amortization of above- and below-market leases, net	43	43	$ 46
2,018	43
2,019	43
2,020	43
2,021	43
2,022	43
Thereafter	747
Off-market leases, net	$ 962	$ 1,006

Notes Payable, net - Summary of

Notes Payable, net - Summary of Outstanding Indebtedness (Details)	Oct. 02, 2017USD ($)	May 03, 2016USD ($)	Apr. 01, 2015USD ($)derivative	Jul. 31, 2013USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Jul. 31, 2016USD ($)derivative	Jun. 30, 2016	May 01, 2015
Debt
Notes payable					$ 2,439,311,000
Notes payable, including held-for-sale					2,439,311,000	$ 2,707,839,000
Deferred financing costs and discounts, net					(17,931,000)	(18,513,000)
Notes payable, net					$ 2,421,380,000	2,473,326,000
Duration used in interest rate calculation					360 days
Hill7
Debt
Joint venture, ownership percentage					55.00%
Interest Rate Contract
Debt
Derivative asset notional amount			$ 300,000,000				$ 300,000,000
Number of derivative instruments held | derivative			2
Disposal Group, Not Discontinued Operations
Debt
Notes payable, held-for-sale					$ 0	216,000,000
5-Year Term Loan due April 2020 | Interest Rate Contract
Debt
Number of derivative instruments held | derivative							2
7-Year Term Loan due November 2022 | Interest Rate Contract
Debt
Derivative asset notional amount		$ 125,000,000
Met Park North
Debt
Notes payable				$ 64,500,000
Debt instrument term				7 years
Fixed interest rate percentage					371.00%
Met Park North | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate				1.55%
Rincon Center and 10950 Washington
Debt
Periodic payment, debt service payment term					30 years
Unsecured Debt
Debt
Notes payable					$ 1,975,000,000	2,025,000,000
Unsecured Debt | Unsecured Revolving Credit Facility
Debt
Notes payable					$ 100,000,000	300,000,000
Debt instrument term					1 year
Unsecured Debt | Unsecured Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.15%
Unsecured Debt | Unsecured Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.85%
Unsecured Debt | 5-Year Term Loan due April 2020
Debt
Notes payable					$ 300,000,000	450,000,000
Debt instrument term			5 years
Unsecured Debt | 5-Year Term Loan due April 2020 | Minimum
Debt
Fixed interest rate percentage							2.75%		2.66%
Unsecured Debt | 5-Year Term Loan due April 2020 | Minimum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.30%
Unsecured Debt | 5-Year Term Loan due April 2020 | Maximum
Debt
Fixed interest rate percentage							3.65%		3.56%
Unsecured Debt | 5-Year Term Loan due April 2020 | Maximum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					2.20%
Unsecured Debt | 5-Year Term Loan due November 2020
Debt
Notes payable					$ 75,000,000	175,000,000
Unsecured Debt | 5-Year Term Loan due November 2020 | Minimum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.30%
Unsecured Debt | 5-Year Term Loan due November 2020 | Maximum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					2.20%
Unsecured Debt | 7-Year Term Loan due April 2022
Debt
Notes payable					$ 350,000,000	350,000,000
Number of derivative instruments held | derivative							2
Unsecured Debt | 7-Year Term Loan due April 2022 | Minimum
Debt
Fixed interest rate percentage							3.36%
Unsecured Debt | 7-Year Term Loan due April 2022 | Minimum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.60%
Unsecured Debt | 7-Year Term Loan due April 2022 | Maximum
Debt
Fixed interest rate percentage							4.31%
Unsecured Debt | 7-Year Term Loan due April 2022 | Maximum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					2.55%
Unsecured Debt | 7-Year Term Loan due November 2022
Debt
Notes payable					$ 125,000,000	125,000,000
Debt instrument term		7 years
Unsecured Debt | 7-Year Term Loan due November 2022 | Minimum
Debt
Fixed interest rate percentage								3.03%
Unsecured Debt | 7-Year Term Loan due November 2022 | Minimum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.60%
Unsecured Debt | 7-Year Term Loan due November 2022 | Maximum
Debt
Fixed interest rate percentage								3.98%
Unsecured Debt | 7-Year Term Loan due November 2022 | Maximum | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					2.55%
Unsecured Debt | Series A Notes
Debt
Notes payable					$ 110,000,000	110,000,000
Interest Rate					4.34%
Unsecured Debt | Series E Notes
Debt
Notes payable					$ 50,000,000	50,000,000
Interest Rate					3.66%
Unsecured Debt | Series B Notes
Debt
Notes payable					$ 259,000,000	259,000,000
Interest Rate					4.69%
Unsecured Debt | Series D Notes
Debt
Notes payable					$ 150,000,000	150,000,000
Interest Rate					3.98%
Unsecured Debt | Registered Senior Notes
Debt
Notes payable					$ 400,000,000	0
Interest Rate					3.95%
Debt instrument, face amount	$ 400,000,000
Percentage of part at debt issuance	99.815%
Unsecured Debt | Series C Notes
Debt
Notes payable					$ 56,000,000	56,000,000
Interest Rate					4.79%
Secured Debt
Debt
Notes payable, including held-for-sale					$ 464,311,000	682,839,000
Secured Debt | Rincon Center
Debt
Notes payable					$ 98,392,000	100,409,000
Interest Rate					5.13%
Secured Debt | Sunset Gower Sunset Bronson
Debt
Notes payable					$ 5,001,000	5,001,000
Secured Debt | Sunset Gower Sunset Bronson | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					2.25%
Secured Debt | Met Park North
Debt
Notes payable					$ 64,500,000	64,500,000
Secured Debt | Met Park North | London Interbank Offered Rate (LIBOR)
Debt
Basis spread on variable rate					1.55%
Secured Debt | 10950 Washington
Debt
Notes payable					$ 27,418,000	27,929,000
Interest Rate					5.32%
Secured Debt | Element LA
Debt
Notes payable					$ 101,000,000
Notes payable, held-for-sale					$ 168,000,000	168,000,000
Interest Rate					4.59%
Secured Debt | Hill7
Debt
Notes payable						101,000,000
Interest Rate					3.38%
Secured Debt | Pinnacle I
Debt
Notes payable, held-for-sale					$ 0	129,000,000
Interest Rate					3.95%
Secured Debt | Pinnacle II
Debt
Notes payable					$ 0	$ 87,000,000
Interest Rate					4.30%

Notes Payable, net - Additional

Notes Payable, net - Additional Information (Details)

Jan. 30, 2018USD ($)

Jan. 23, 2018USD ($)

Nov. 16, 2017USD ($)

Oct. 02, 2017USD ($)

May 03, 2016

Feb. 13, 2016

Nov. 17, 2015USD ($)

Nov. 16, 2015USD ($)

Apr. 01, 2015USD ($)

Mar. 31, 2015USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Debt Instrument [Line Items]

Proceeds from disposition of real estate held-for-sale

$ 254,800,000

Notes payable

$ 2,439,311,000

Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Maximum leverage ratio

0.6

Unencumbered leverage ratio

0.6

Fixed charge coverage ratio

1.5

Maximum secured indebtedness ratio

0.45

Minimum unsecured interest coverage ratio

2

A & R Credit Facilities | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 2,000,000,000

Sunset Gower Sunset Bronson

Debt Instrument [Line Items]

Principal amount guaranteed

19.50%

Maximum guarantee amount

$ 1,000,000

Unsecured Debt

Debt Instrument [Line Items]

Notes payable

$ 1,975,000,000

$ 2,025,000,000

Unsecured Debt | Unsecured Revolving Credit Facility

Debt Instrument [Line Items]

Debt instrument term

1 year

Maximum borrowing capacity

$ 400,000,000

400,000,000

Notes payable

100,000,000

300,000,000

Remaining borrowing capacity

$ 300,000,000

100,000,000

Unsecured Debt | Unsecured Revolving Credit Facility | Minimum

Debt Instrument [Line Items]

Commitment fee percentage

0.20%

Unsecured Debt | Unsecured Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.15%

Unsecured Debt | Unsecured Revolving Credit Facility | Maximum

Debt Instrument [Line Items]

Commitment fee percentage

0.35%

Unsecured Debt | Unsecured Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.85%

Unsecured Debt | Unsecured Revolving Credit Facility | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Repayments of Long-term Debt

$ 250,000,000

Unsecured Debt | 5-Year Term Loan due November 2020

Debt Instrument [Line Items]

Notes payable

$ 75,000,000

175,000,000

Unsecured Debt | 5-Year Term Loan due November 2020 | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.30%

Unsecured Debt | 5-Year Term Loan due November 2020 | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.20%

Unsecured Debt | 5-Year Term Loan due November 2020 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Repayments of secured debt

$ 100,000,000

Debt instrument term

5 years

Debt instrument, face amount

$ 175,000,000

Unused commitment fee

0.20%

Unsecured Debt | 5-Year Term Loan due November 2020 | Hudson Pacific Partners, L.P. | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.30%

Unsecured Debt | 5-Year Term Loan due November 2020 | Hudson Pacific Partners, L.P. | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.20%

Unsecured Debt | 5-Year Term Loan due April 2020

Debt Instrument [Line Items]

Debt instrument term

5 years

Notes payable

$ 300,000,000

450,000,000

Unsecured Debt | 5-Year Term Loan due April 2020 | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.30%

Unsecured Debt | 5-Year Term Loan due April 2020 | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.20%

Unsecured Debt | 5-Year Term Loan due April 2020 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument term

5 years

Repayments of Long-term Debt

150,000,000

Unsecured Debt | 7-Year Term Loan due November 2022

Debt Instrument [Line Items]

Debt instrument term

7 years

Notes payable

$ 125,000,000

125,000,000

Unsecured Debt | 7-Year Term Loan due November 2022 | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.60%

Unsecured Debt | 7-Year Term Loan due November 2022 | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.55%

Unsecured Debt | 7-Year Term Loan due November 2022 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument term

7 years

Debt instrument, face amount

$ 125,000,000

Unused commitment fee

0.20%

Unsecured Debt | 7-Year Term Loan due November 2022 | Hudson Pacific Partners, L.P. | Minimum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

1.60%

Unsecured Debt | 7-Year Term Loan due November 2022 | Hudson Pacific Partners, L.P. | Maximum | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.55%

Unsecured Debt | New Credit Agreement - Term Loan | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 475,000,000

Unsecured Debt | Term Loan 2014 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument term

5 years

Debt instrument, face amount

$ 550,000,000

$ 150,000,000

Unsecured Debt | 7 Year Term Loan Facility 2015

Debt Instrument [Line Items]

Debt instrument term

7 years

Debt instrument, face amount

$ 350,000,000

Unsecured Debt | 7 Year Term Loan Facility 2015 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

350,000,000

Unsecured Debt | Senior Notes | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

$ 425,000,000

Prepayment, percent of principal, minimum

5.00%

Prepayment, percent of principal

100.00%

Unsecured Debt | Series A Notes

Debt Instrument [Line Items]

Notes payable

$ 110,000,000

110,000,000

Interest Rate

4.34%

Unsecured Debt | Series A Notes | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

$ 110,000,000

Unsecured Debt | Series B Notes

Debt Instrument [Line Items]

Notes payable

$ 259,000,000

259,000,000

Interest Rate

4.69%

Unsecured Debt | Series B Notes | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

259,000,000

Unsecured Debt | Series C Notes

Debt Instrument [Line Items]

Notes payable

$ 56,000,000

56,000,000

Interest Rate

4.79%

Unsecured Debt | Series C Notes | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

$ 56,000,000

Unsecured Debt | Series D Notes

Debt Instrument [Line Items]

Notes payable

$ 150,000,000

150,000,000

Interest Rate

3.98%

Unsecured Debt | Series E Notes

Debt Instrument [Line Items]

Notes payable

$ 50,000,000

50,000,000

Interest Rate

3.66%

Senior Notes | Senior Notes Due November 1, 2027 | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Debt instrument, face amount

400,000,000

Proceeds from issuance of private placement of debt

$ 396,700,000

Percentage of part at debt issuance

99.815%

Stated interest rate

3.95%

Secured Debt | Sunset Gower Sunset Bronson

Debt Instrument [Line Items]

Notes payable

$ 5,001,000

5,001,000

Secured Debt | Sunset Gower Sunset Bronson | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

2.25%

Disposal Group, Not Discontinued Operations

Debt Instrument [Line Items]

Notes payable, held-for-sale

$ 0

$ 216,000,000

Disposal Group, Not Discontinued Operations | Pinnacle I and II

Debt Instrument [Line Items]

Proceeds from disposition of real estate held-for-sale

350,000,000

Notes payable, held-for-sale

$ 216,000,000

Unsecured Revolving Credit Facility | Line of Credit | Hudson Pacific Partners, L.P.

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 400,000,000

$ 300,000,000

Extension period (in years)

1 year

Unsecured Revolving Credit Facility | Subsequent Event

Debt Instrument [Line Items]

Proceeds from lines of credit

$ 100,000,000

$ 100,000,000

Long-term line of credit

$ 200,000,000

Notes Payable, net - Summary 53

Notes Payable, net - Summary of Reserved Funds (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Restricted cash	$ 22,358	$ 25,177	$ 18,010	$ 17,083
Secured Debt
Debt Instrument [Line Items]
Restricted cash	21,599	25,003
Secured Debt | Rincon Center
Debt Instrument [Line Items]
Restricted cash	14,220	16,291
Secured Debt | Element LA
Debt Instrument [Line Items]
Restricted cash	3,581	2,627
Secured Debt | Hill7
Debt Instrument [Line Items]
Restricted cash	2,392	1,643
Secured Debt | 10950 Washington
Debt Instrument [Line Items]
Restricted cash	1,406	1,249
Secured Debt | Pinnacle I
Debt Instrument [Line Items]
Restricted cash	0	1,811
Secured Debt | Pinnacle II
Debt Instrument [Line Items]
Restricted cash	$ 0	$ 1,382

Notes Payable, net - Minimum Fu

Notes Payable, net - Minimum Future Payments Due on Notes Payable (Details) $ in Thousands	Dec. 31, 2017USD ($)
Debt Disclosure [Abstract]
2,018	$ 98,930
2,019	105,569
2,020	440,095
2,021	632
2,022	500,085
Thereafter	1,294,000
Total	$ 2,439,311

Notes Payable, net - Interest E

Notes Payable, net - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Gross interest expense	$ 94,660	$ 82,887	$ 52,437
Capitalized interest	(10,655)	(11,307)	(6,516)
Amortization of deferred financing costs and loan discount/premium, net	6,032	4,464	4,746
Interest Expense	90,037	$ 76,044	$ 50,667
Interest costs incurred on notes payable, hedging activities and extinguishment costs	$ 1,100

Derivatives (Details)

Derivatives (Details)	May 03, 2016USD ($)	Apr. 01, 2015USD ($)derivative	Jul. 31, 2013USD ($)	Dec. 31, 2017USD ($)derivative	Dec. 31, 2016USD ($)derivative	Dec. 31, 2015USD ($)	Jul. 31, 2016USD ($)derivative	Jun. 30, 2016	Jun. 01, 2016	May 01, 2015
Derivative
Loss recognized related to ineffective portion of derivative contracts				$ 70,000	$ 1,400,000	$ 0
Notes payable				2,439,311,000
Derivative assets				12,586,000	5,935,000
Derivative liabilities				265,000	1,303,000
Unrealized gain included in accumulated other comprehensive loss				$ 1,500,000		$ 2,597,000
Met Park North
Derivative
Debt instrument term			7 years
Fixed interest rate percentage				371.00%
Notes payable			$ 64,500,000
Met Park North | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate			1.55%
Unsecured Debt
Derivative
Notes payable				$ 1,975,000,000	2,025,000,000
Unsecured Debt | 5-Year Term Loan due April 2020
Derivative
Debt instrument term		5 years
Notes payable				$ 300,000,000	450,000,000
Unsecured Debt | 5-Year Term Loan due April 2020 | Minimum
Derivative
Fixed interest rate percentage							2.75%			2.66%
Unsecured Debt | 5-Year Term Loan due April 2020 | Minimum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate				1.30%
Unsecured Debt | 5-Year Term Loan due April 2020 | Maximum
Derivative
Fixed interest rate percentage							3.65%			3.56%
Unsecured Debt | 5-Year Term Loan due April 2020 | Maximum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate				2.20%
Unsecured Debt | 7 Year Term Loan Facility 2015
Derivative
Debt instrument term		7 years
Debt instrument, face amount		$ 350,000,000
Unsecured Debt | 7 Year Term Loan Facility 2015 | Minimum
Derivative
Fixed interest rate percentage							3.36%			3.21%
Unsecured Debt | 7 Year Term Loan Facility 2015 | Maximum
Derivative
Fixed interest rate percentage							4.31%			4.16%
Unsecured Debt | 7-Year Term Loan due November 2022
Derivative
Debt instrument term	7 years
Notes payable				$ 125,000,000	$ 125,000,000
Unsecured Debt | 7-Year Term Loan due November 2022 | Minimum
Derivative
Fixed interest rate percentage								3.03%
Unsecured Debt | 7-Year Term Loan due November 2022 | Minimum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate				1.60%
Unsecured Debt | 7-Year Term Loan due November 2022 | Maximum
Derivative
Fixed interest rate percentage								3.98%
Unsecured Debt | 7-Year Term Loan due November 2022 | Maximum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate				2.55%
Designated as Hedging Instrument | London Interbank Offered Rate (LIBOR)
Derivative
Derivative, floor interest rate							0.00%
Interest Rate Caps | Designated as Hedging Instrument
Derivative
Number of derivative instruments held | derivative				6	6
Notional amount				$ 839,500,000	$ 83,900,000
Interest Rate Swaps | 7 Year Term Loan Facility 2015
Derivative
Fixed interest rate										1.61%
Interest Rate Swaps | Unsecured Debt | 7 Year Term Loan Facility 2015
Derivative
Number of derivative instruments held | derivative		2
Interest Rate Contract
Derivative
Number of derivative instruments held | derivative		2
Derivative asset notional amount		$ 300,000,000					$ 300,000,000
Interest Rate Contract | 5-Year Term Loan due April 2020
Derivative
Number of derivative instruments held | derivative							2
Interest Rate Contract | 7-Year Term Loan due November 2022
Derivative
Derivative asset notional amount	$ 125,000,000
Fixed interest rate									1.43%
Interest Rate Contract | Met Park North | London Interbank Offered Rate (LIBOR)
Derivative
Interest rate cap			2.16%
Interest Rate Contract | Not Designated as Hedging Instrument | 5-Year Term Loan due April 2020 | Minimum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate		1.30%
Interest Rate Contract | Not Designated as Hedging Instrument | 5-Year Term Loan due April 2020 | Maximum | London Interbank Offered Rate (LIBOR)
Derivative
Basis spread on variable rate		2.20%
Interest Rate Contract, Instrument A | 5-Year Term Loan due April 2020
Derivative
Notional amount		$ 150,000,000
Fixed interest rate										1.36%
Interest Rate Contract, Instrument B | 5-Year Term Loan due April 2020
Derivative
Notional amount		$ 150,000,000
Fixed interest rate										1.36%
Interest Rate Floor | 7-Year Term Loan due November 2022 | London Interbank Offered Rate (LIBOR)
Derivative
Derivative, floor interest rate	0.00%

Future Minimum Base Rents and57

Future Minimum Base Rents and Lease Payments Future Minimum Rents - Future Minimum Base Rents (Details) $ in Thousands	Dec. 31, 2017USD ($)
Operating Leases, Future Minimum Payments Receivable [Abstract]
2,018	$ 480,779
2,019	456,807
2,020	396,593
2,021	348,360
2,022	292,434
Thereafter	929,832
Total	2,904,805
Non-Cancelable Leases
Operating Leases, Future Minimum Payments Receivable [Abstract]
2,018	476,777
2,019	445,032
2,020	376,361
2,021	315,588
2,022	246,997
Thereafter	805,449
Total	2,666,204
Subject to Early Termination Options
Operating Leases, Future Minimum Payments Receivable [Abstract]
2,018	4,002
2,019	11,775
2,020	20,232
2,021	32,772
2,022	45,437
Thereafter	124,383
Total	$ 238,601

Future Minimum Base Rents and58

Future Minimum Base Rents and Lease Payments Future Minimum Rents - Ground lease Terms Related to Properties That Are Held Subject to Long-term Noncancellable Ground Lease Obligations (Details) - Ground Lease	12 Months Ended
	Dec. 31, 2017USD ($)
3400 Hillview
Operating Leased Assets
Minimum annual rent calculation, percent of land fair market value	10.00%
Minimum annual rent calculation, cumulative increases in consumer price index	$ 1,000,000
Minimum annual rent calculation, percent of consumer price index over the next 5 years	75.00%
Minimum annual rent calculation, percent of consumer price index, thereafter	75.00%
Minimum annual rent calculation, percent of adjusted gross income	24.125%
9300 Wilshire
Operating Leased Assets
Minimum annual rent calculation, percent	6.00%
Clocktower Square
Operating Leased Assets
Minimum annual rent calculation, percent of adjusted gross income	25.00%
Minimum annual rent calculation, frequency of rent adjustments	10 years
Del Amo Office
Operating Leased Assets
Minimum annual rent calculation, annual rent	$ 1
Foothill Research Center
Operating Leased Assets
Minimum annual rent calculation, percent of land fair market value	10.00%
Minimum annual rent calculation, percent of adjusted gross income	24.125%
Minimum annual rent calculation, percent of consumer price index	75.00%
3176 Porter (formerly Lockheed)
Operating Leased Assets
Minimum annual rent calculation, percent of land fair market value	10.00%
Minimum annual rent calculation, percent of adjusted gross income	24.125%
Minimum annual rent calculation, percent of consumer price index	75.00%
Metro Center
Operating Leased Assets
Minimum annual rent calculation, percent of land fair market value	7.233%
Minimum annual rent calculation, frequency of rent adjustments	10 years
Page Mill Center
Operating Leased Assets
Minimum annual rent calculation, percent of adjusted gross income	25.00%
Page Mill Hill
Operating Leased Assets
Minimum annual rent calculation, frequency of rent adjustments	10 years
Minimum annual rent calculation, percent of annual rent, previous 7 years	60.00%
Palo Alto Square
Operating Leased Assets
Minimum annual rent calculation, percent of adjusted gross income	25.00%
Minimum annual rent calculation, frequency of rent adjustments	10 years
Sunset Gower Studios
Operating Leased Assets
Minimum annual rent calculation, percent of land fair market value	7.50%
Minimum annual rent calculation, frequency of rent adjustments	7 years
Techmart Commerce Center
Operating Leased Assets
Minimum annual rent calculation, percent	10.00%
Minimum annual rent calculation, frequency of rent adjustments	5 years

Future Minimum Base Rents and59

Future Minimum Base Rents and Lease Payments Future Minimum Rents - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Leases [Abstract]
Contingent rental expense	$ 8,775	$ 8,651	$ 3,843
Minimum rental expense	$ 12,412	$ 12,085	$ 9,196

Future Minimum Base Rents and60

Future Minimum Base Rents and Lease Payments Future Minimum Rents - Future Minimum Payments Due (Details) $ in Thousands	Dec. 31, 2017USD ($)
Leases [Abstract]
2,018	$ 14,111
2,019	14,161
2,020	14,161
2,021	14,161
2,022	14,161
Thereafter	382,070
Total	$ 452,825

Fair Value of Financial Instr61

Fair Value of Financial Instruments (Details) - USD ($)	Dec. 31, 2017	Oct. 02, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	$ 12,586,000		$ 5,935,000
Derivative liabilities	265,000		1,303,000
Unsecured Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes payable	1,960,560,000		2,011,210,000
Unsecured Debt | Registered Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Debt instrument, face amount		$ 400,000,000
Discount net of amortization	722,000
Unsecured Debt | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes payable	1,974,278,000		2,025,000,000
Secured Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes payable	458,441,000		669,924,000
Secured Debt | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notes payable	464,311,000		682,839,000
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0		0
Derivative liabilities	0		0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	12,586,000		5,935,000
Derivative liabilities	265,000		1,303,000
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0		0
Derivative liabilities	$ 0		$ 0

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details)	1 Months Ended		12 Months Ended
	Feb. 28, 2017USD ($)	Dec. 31, 2015	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price assumption for maximum bonus pool eligibility (in dollars per share) | $ / shares			$ 34.25
Performance period (in years)			3 years
Vesting percentage after performance period			50.00%
Amortization of stock-based compensation			$ 15,915,000	$ 14,654,000	$ 8,832,000
Unrecognized compensation cost related to unvested share-based payments			$ 31,200,000
Unrecognized compensation cost, amortization period (in years)			2 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			2 years
2010 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ratio of reduction in share reserve			5.14
Number of shares authorized for issuance | shares			3,961,867
Existing and Newly Elected Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			3 years
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			3 years
Employees | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)		4 years
One-Time Retention Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Retention awards, vesting percentage		25.00%	25.00%
OPP 2,017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Mandatory holding period upon vesting	2 years
Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum bonus pool	$ 20,000,000		$ 20,000,000	17,500,000
Outperformance Program | Expensed stock compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			15,079,000	14,144,000	8,421,000
Outperformance Program | Capitalized stock compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$ 836,000	$ 510,000	$ 411,000

Stock-Based Compensation - Outp

Stock-Based Compensation - Outperformance Plan (Details) - USD ($)	Dec. 31, 2017	Feb. 28, 2017	Dec. 31, 2016
Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum bonus pool	$ 20,000,000	$ 20,000,000	$ 17,500,000

Stock-Based Compensation - Valu

Stock-Based Compensation - Valuation Assumptions (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free interest rate	1.47%	1.09%	1.13%
Total dividend payments over the measurement period per share	2.30%	2.40%	1.50%
Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free interest rate	1.63%
Total dividend payments over the measurement period per share	3.20%
The Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate	24.00%	24.00%	22.00%
The Company | Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate	23.00%
REIT Index
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate	17.00%	17.00%	22.00%
REIT Index | Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility rate	18.00%

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Award Information (Details) - Restricted Stock - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)	887,179	827,950	543,707
Granted (in shares)	918,884	489,826	629,504
Vested (in shares)	(705,508)	(430,597)	(335,544)
Canceled (in shares)	(13,369)	0	(9,717)
Ending balance (in shares)	1,087,186	887,179	827,950
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Beginning balance (in dollars per share)	$ 31.09	$ 28.92	$ 26.43
Granted (in dollars per share)	34.37	30.95	29.01
Vested (in dollars per share)	31.42	26.75	24.80
Canceled (in dollars per share)	32.14	0	38.17
Ending balance (in dollars per share)	$ 33.64	$ 31.09	$ 28.92
Total Vest-Date Fair Value	$ 24,155	$ 14,736	$ 9,606

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Numerator:
Basic net income (loss) attributable to common stockholders	$ 67,587	$ 27,218	$ (16,397)
Effect of dilutive instruments	0	451	0
Diluted net income (loss) available to common stockholders/unitholders	$ 67,587	$ 27,669	$ (16,397)
Denominator:
Basic weighted average shares of common shares/units outstanding (in shares)	153,488,730	106,188,902	85,927,216
Effect of dilutive instruments (in shares)	394,084	4,180,153	0
Diluted weighted average common shares/units outstanding (in shares)	153,882,814	110,369,055	85,927,216
Basic earnings per common share/unit (in dollars per share)	$ 0.44	$ 0.26	$ (0.19)
Diluted earnings per common share/unit (in dollars per share)	$ 0.44	$ 0.25	$ (0.19)
Hudson Pacific Partners, L.P.
Numerator:
Basic net income (loss) attributable to common stockholders	$ 67,962	$ 33,066	$ (38,366)
Effect of dilutive instruments	0	451	0
Diluted net income (loss) available to common stockholders/unitholders	$ 67,962	$ 33,517	$ (38,366)
Denominator:
Basic weighted average shares of common shares/units outstanding (in shares)	154,276,773	145,595,246	128,948,077
Effect of dilutive instruments (in shares)	394,084	1,144,000	0
Diluted weighted average common shares/units outstanding (in shares)	154,670,857	146,739,246	128,948,077
Basic earnings per common share/unit (in dollars per share)	$ 0.44	$ 0.23	$ (0.30)
Diluted earnings per common share/unit (in dollars per share)	$ 0.44	$ 0.23	$ (0.30)

Equity - Comprehensive Income (

Equity - Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 3,702,750	$ 3,729,037	$ 1,275,015
Reclassification related to redemption of common units in the operating partnership	(310,855)	(1,446,039)
Ending balance	3,910,964	3,702,750	3,729,037
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	5,878	(64)	(2,661)
Unrealized loss recognized in OCI due to change in fair value	3,029	(2,867)	(7,663)
Loss Reclassified from OCI into Income (as Interest Expense)	4,369	8,809	10,260
Net change in OCI	7,398	5,942	2,597
Reclassification related to redemption of common units in the operating partnership	0
Ending balance	13,276	5,878	(64)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	9,496	(1,081)	(2,443)
Unrealized loss recognized in OCI due to change in fair value	3,011	4,122	(4,976)
Loss Reclassified from OCI into Income (as Interest Expense)	4,342	6,455	6,338
Net change in OCI	7,353	10,577	1,362
Reclassification related to redemption of common units in the operating partnership	(3,622)
Ending balance	13,227	9,496	(1,081)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(3,618)	1,017	(218)
Unrealized loss recognized in OCI due to change in fair value	18	(6,989)	(2,687)
Loss Reclassified from OCI into Income (as Interest Expense)	27	2,354	3,922
Net change in OCI	45	(4,635)	1,235
Reclassification related to redemption of common units in the operating partnership	3,622
Ending balance	$ 49	$ (3,618)	$ 1,017

Equity - Narrative (Details)

Equity - Narrative (Details)	1 Months Ended				12 Months Ended
	Jan. 31, 2017shares	Nov. 30, 2016shares	Jul. 31, 2016shares	May 31, 2016shares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)shares	Dec. 31, 2014$ / sharesshares	Dec. 31, 2017$ / sharesshares	Dec. 31, 2016shares	Jan. 20, 2016USD ($)	Dec. 31, 2015shares
Class of Stock [Line Items]
Company-owned common units in the operating partnership									155,602,508	136,492,235
Company’s ownership interest percentage									99.60%	93.50%		61.30%
Non-controlling ownership interest percentage									0.40%	6.50%		38.70%
Common Stock, Increase (Decrease) During Period [Roll Forward]
Original issuance costs of redeemed Series B preferred stock | $					$ 0	$ 0	$ (5,970,000)
Stock repurchase program authorized | $											$ 100,000,000
Common stock, dividends declared (in dollars per share) | $ / shares					$ 1
Restricted Performance-based Share Awards
Common Stock, Increase (Decrease) During Period [Roll Forward]
Common stock, conversion ratio					1
Series A Cumulative Redeemable Preferred Units of the Operating Partnership
Common Stock, Increase (Decrease) During Period [Roll Forward]
Interest rate of preferred stock					6.25%
Preferred stock, shares outstanding									407,066
Liquidation preference of preferred stock (in dollars per share) | $ / shares									$ 25
Preferred stock, dividends declared (in dollars per share) | $ / shares					$ 1.5625
Series B Preferred Stock
Common Stock, Increase (Decrease) During Period [Roll Forward]
Interest rate of preferred stock								8.375%
Preferred stock, shares outstanding								5,800,000
Liquidation preference of preferred stock (in dollars per share) | $ / shares								$ 25
Par value of preferred stock (in dollars per share) | $ / shares								$ 0.01
Common Stock
Class of Stock [Line Items]
Non-controlling common units in the operating partnership	9,450,620				9,450,620	56,296,315	56,296,315		569,045	9,450,620		56,296,315
Common Stock, Increase (Decrease) During Period [Roll Forward]
Noncontrolling Interest, Beginning balance	9,450,620				9,450,620	56,296,315
Partners' capital redeemed shares	(8,881,575)	(17,533,099)	(19,195,373)	(10,117,223)
Noncontrolling common units in the operating partnership					569,045	9,450,620	56,296,315
Partnership Interest
Class of Stock [Line Items]
Company-owned common units in the operating partnership									155,602,508	136,492,235		89,153,780

Equity - Net Income Attributabl

Equity - Net Income Attributable to Common Stockholders (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Equity [Line Items]
Net income (loss) allocation for common stock/units on the Consolidated Statements of Equity/Capital	$ 68,590	$ 27,984	$ (10,071)
Net income attributable to participating securities	(1,003)	(766)	(356)
Series B transaction costs allocation	0	0	(5,970)
Net income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	67,587	27,218	(16,397)
Hudson Pacific Partners, L.P.
Reconciliation of Equity [Line Items]
Net income (loss) allocation for common stock/units on the Consolidated Statements of Equity/Capital	68,965	33,832	(32,040)
Net income attributable to participating securities	(1,003)	(766)	(356)
Series B transaction costs allocation	0	0	(5,970)
Net income (loss) attributable to Hudson Pacific Properties, Inc. common stockholders	$ 67,962	$ 33,066	$ (38,366)

Equity - Common Stock Activity

Equity - Common Stock Activity (Details) - USD ($)	Mar. 03, 2017	Jan. 10, 2017	Nov. 28, 2016	Jul. 21, 2016	May 16, 2016	Apr. 01, 2015	Jan. 20, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)		18,673,808
Proceeds from issuance of common stock, net								$ 647,382,000	$ 1,449,581,000	$ 380,620,000
Repayments of unsecured debt	$ 255,000,000
ATM Program
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)								0	165,000	0
Proceeds from issuance of common stock, net								$ 20,100,000
Number of share authorized, value								$ 125,000,000
Minimum | ATM Program
Class of Stock [Line Items]
Public offering price per share (in dollars per share)									$ 33.54
Maximum | ATM Program
Class of Stock [Line Items]
Public offering price per share (in dollars per share)									$ 33.95
Hudson Pacific Properties, Inc.
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)		8,881,575
Proceeds from issuance of common stock, net		$ 310,900,000
Common Stock
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)	9,775,000		17,533,099	19,195,373	10,117,223	8,626,311	12,650,000	18,656,575	47,010,695	12,650,000
Public offering price per share (in dollars per share)							$ 31.75
Proceeds from issuance of common stock, net							$ 385,600,000
Common Stock | Public Offering
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)							11,000,000
Common Stock | Underwriter option
Class of Stock [Line Items]
Proceeds from sale of common units, net of underwriters’ discount and transaction costs (in shares)							1,650,000

Equity - Dividends (Details)

Equity - Dividends (Details) - $ / shares	Dec. 18, 2017	Sep. 19, 2017	Jun. 20, 2017	Mar. 30, 2017	Dec. 31, 2017
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 1
Common stock, dividends					100.00%
Common stock, percentage classified as ordinary dividends					58.532%
Common stock, percentage classified as capital gain distribution					16.09%
Common stock, percentage classified as return of capital					25.38%
Common stock, capital gain distribution, unrecaptured 1250 gain					$ 0.0300
Oridnary Dividends
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	0.14633	0.14633	0.14633	0.14633	0.58532
Non-Qualified Ordinary Dividends
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	0.14633	0.14633	0.14633	0.14633	0.58532
Qualified Ordinary Dividends
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	0	0	0	0	0
Capital Gain Distributions
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	0.04023	0.04023	0.04023	0.04023	0.16092
Return of Capital Dividend
Class of Stock [Line Items]
Common stock, distributions per share (in dollars per share)	$ 0.06345	$ 0.06345	$ 0.06345	$ 0.06345	$ 0.2538

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) $ in Thousands

Jan. 10, 2017USD ($)shares

Jul. 01, 2016USD ($)

Dec. 16, 2015ft²

Apr. 01, 2015USD ($)ft²projectpropertydirectorshares

Jan. 31, 2017shares

Nov. 30, 2016shares

Jul. 31, 2016shares

May 31, 2016shares

Dec. 31, 2017USD ($)ft²

Dec. 31, 2016USD ($)

Dec. 31, 2015USD ($)

Nov. 16, 2017USD ($)

Sep. 01, 2015ft²

Related Party Transaction [Line Items]

Proceeds from disposition of real estate held-for-sale

$ 254,800

Net rentable area (in square feet) | ft²

14,541,458

Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares) | shares

18,673,808

Proceeds from issuance of common stock, net

$ 647,382

$ 1,449,581

$ 380,620

Common Stock

Related Party Transaction [Line Items]

Partners' capital redeemed shares | shares

8,881,575

17,533,099

19,195,373

10,117,223

Blackstone Real Estate Partners

Related Party Transaction [Line Items]

Number of director nominees to the board | director

3

Hudson Pacific Properties, Inc.

Related Party Transaction [Line Items]

Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares) | shares

8,881,575

Proceeds from issuance of common stock, net

$ 310,900

Blackstone And Farallon Funds

Related Party Transaction [Line Items]

Proceeds from sale of common stock, net of underwriters' discount and transaction costs (in shares) | shares

9,792,233

Proceeds from issuance of common stock, net

$ 342,700

EOP Northern California Portfolio

Related Party Transaction [Line Items]

Net rentable area (in square feet) | ft²

8,200,000

Payments to acquire businesses

$ 1,750,000

Shares issued as consideration for business combination | shares

63,474,791

EOP Northern California Portfolio | Office Building

Related Party Transaction [Line Items]

Number of real estate properties acquired | property

26

EOP Northern California Portfolio | Development Parcel

Related Party Transaction [Line Items]

Number of real estate development projects acquired | project

2

Disposal Group, Not Discontinued Operations

Related Party Transaction [Line Items]

Notes payable, held-for-sale

$ 0

$ 216,000

Pinnacle I and II | Disposal Group, Not Discontinued Operations

Related Party Transaction [Line Items]

Proceeds from disposition of real estate held-for-sale

$ 350,000

Notes payable, held-for-sale

$ 216,000

11601 Wilshire

Related Party Transaction [Line Items]

Area of leased real estate (in square feet) | ft²

6,638

Total term of lease

8 years

Purchase price of properties acquired, business acquisitions

$ 311,000

Annualized rent payment

$ 279

Blackstone Real Estate Partners

Related Party Transaction [Line Items]

Area of leased real estate (in square feet) | ft²

42,371

40,120

Operating lease, renewal term

3 years

Total term of lease

10 years

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Revolving Credit Facility | Unsecured Debt
Loss Contingencies
Letters of credit outstanding	$ 2.5
Geographic Concentration Risk | California
Loss Contingencies
Contribution risk, percentage	90.00%
Customer Concentration Risk | Rentable Square Feet
Loss Contingencies
Contribution risk, percentage	29.00%
Customer Concentration Risk | Rentable Square Feet | Media And Entertainment Sector
Loss Contingencies
Contribution risk, percentage	16.00%
Customer Concentration Risk | Rentable Square Feet | Technology Sector
Loss Contingencies
Contribution risk, percentage	34.00%

Quarterly Financial Informati74

Quarterly Financial Information (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 189,333	$ 190,021	$ 180,500	$ 168,285	$ 167,198	$ 164,583	$ 154,321	$ 153,537	$ 728,139	$ 639,639	$ 520,850
Income from operations	43,832	36,160	28,108	28,503	26,845	23,740	19,811	19,011	136,603	89,407	47,388
Net income	48,944	14,510	6,954	24,153	28,530	5,217	4,035	5,976	$ 94,561	$ 43,758	$ (16,082)
Net income attributable to the Company’s stockholders	$ 32,455	$ 11,064	$ 3,553	$ 20,515	$ 22,279	$ 1,847	$ 839	$ 2,253
Net income attributable to common stockholders’ per share— basic (in dollars per share)	$ 0.21	$ 0.07	$ 0.02	$ 0.14	$ 0.18	$ 0.02	$ 0.01	$ 0.03
Net income attributable to common stockholders’ per share — diluted (in dollars per share)	$ 0.21	$ 0.07	$ 0.02	$ 0.14	$ 0.18	$ 0.02	$ 0.01	$ 0.03

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Millions	Feb. 12, 2018	Jan. 30, 2018	Jan. 23, 2018	Dec. 31, 2017	Jan. 31, 2018	Jan. 25, 2018
Subsequent Event [Line Items]
Proceeds from disposition of real estate held-for-sale				$ 254.8
Performance period (in years)				3 years
Embarcadero Place
Subsequent Event [Line Items]
Proceeds from disposition of real estate held-for-sale				$ 136
2600 Campus Drive
Subsequent Event [Line Items]
Proceeds from disposition of real estate held-for-sale				$ 22.5
Subsequent Event | Outperformance Program 2018
Subsequent Event [Line Items]
Maximum bonus pool	$ 25
TSR, absolute hurdle rate	7.00%
TSR, absolute hurdle rate, percent of performance in excess of hurdle rate	3.00%
TSR, percent in excess of SNL US office REIT index	3.00%
TSR, Percent of underperformance under SNL US office REIT index	3.00%
TSR, Percent of underperformance under SNL US office REIT index, threshold	3.00%
Target bonus pool	$ 4.8
TSR, Maximum bonus pool, percent of simple annual TSR	8.00%
Performance period (in years)	3 years
Mandatory holding period upon vesting	2 years
Subsequent Event | Outperformance Program 2018 | Maximum
Subsequent Event [Line Items]
TSR, linear reduction in absolute TSR performance	100.00%
TSR, linear reduction in simple annual TSR performance	7.00%
Subsequent Event | Outperformance Program 2018 | Minimum
Subsequent Event [Line Items]
TSR, linear reduction in absolute TSR performance	25.00%
TSR, linear reduction in simple annual TSR performance	0.00%
Subsequent Event | Outperformance Program 2018 | Victor J. Coleman
Subsequent Event [Line Items]
TSR, award percentage	24.00%
Subsequent Event | Outperformance Program 2018 | Mark T. Lammas
Subsequent Event [Line Items]
TSR, award percentage	13.75%
Subsequent Event | Outperformance Program 2018 | Christopher Barton
Subsequent Event [Line Items]
TSR, award percentage	6.40%
Subsequent Event | Outperformance Program 2018 | Alex Vouvalides
Subsequent Event [Line Items]
TSR, award percentage	9.15%
Subsequent Event | Outperformance Program 2018 | Josh Hatfield
Subsequent Event [Line Items]
TSR, award percentage	6.40%
Subsequent Event | Embarcadero Place
Subsequent Event [Line Items]
Proceeds from disposition of real estate held-for-sale						$ 136
Subsequent Event | 2600 Campus Drive
Subsequent Event [Line Items]
Proceeds from disposition of real estate held-for-sale					$ 22.5
Subsequent Event | Unsecured Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit		$ 100	$ 100

Schedule III - Real Estate an76

Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	$ 464,311
Amount of encumbrances, net of real estate held-for-sale	464,311
Initial Costs
Land	1,302,907
Land, net of real estate held-for-sale	1,369,320
Building & Improvements	4,181,861
Buildings & Improvements, net of real estate held-for-sale	4,330,544
Cost Capitalized Subsequent to Acquisition
Improvements	899,181
Improvements, net of real estate held-for-sale	904,893
Carrying Costs	39,492
Carrying costs, net of real estate held-for-sale	39,492
Gross Carrying Amount
Land	1,302,907
Land, net of real estate held-for-sale	1,369,320
Building & Improvements	5,120,534
Buildings & All Improvements, net of real estate held-for-sale	5,274,929
Total	6,423,441
Real estate, net of real estate held-for-sale	6,644,249	$ 6,507,484	$ 5,976,526	$ 2,239,741
Accumulated depreciation	(533,498)	(375,207)	(263,859)
Accumulated depreciation, net of real estate held-for-sale	(549,411)	$ (423,950)	$ (272,724)	$ (142,561)
Real estate, federal income tax basis	$ 6,200,000
Building Improvements
Gross Carrying Amount
Estimated useful life	39 years
Land improvements
Gross Carrying Amount
Estimated useful life	15 years
9300 Wilshire | Disposal Group, Held-for-sale, Not Discontinued Operations
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	$ 0
Initial Costs
Land	0
Building & Improvements	10,718
Cost Capitalized Subsequent to Acquisition
Improvements	2,024
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	12,742
Total	12,742
Accumulated depreciation	(4,195)
Embarcadero Place | Disposal Group, Held-for-sale, Not Discontinued Operations
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	41,050
Building & Improvements	77,006
Cost Capitalized Subsequent to Acquisition
Improvements	3,273
Carrying Costs	0
Gross Carrying Amount
Land	41,050
Building & Improvements	80,279
Total	121,329
Accumulated depreciation	(7,155)
2180 Sand Hill Road | Disposal Group, Held-for-sale, Not Discontinued Operations
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	13,663
Building & Improvements	50,559
Cost Capitalized Subsequent to Acquisition
Improvements	385
Carrying Costs	0
Gross Carrying Amount
Land	13,663
Building & Improvements	50,944
Total	64,607
Accumulated depreciation	(3,749)
2600 Campus Drive (building 6 of Peninsula Office Park), San Francisco Bay Area, CA | Disposal Group, Held-for-sale, Not Discontinued Operations
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	11,700
Building & Improvements	10,400
Cost Capitalized Subsequent to Acquisition
Improvements	30
Carrying Costs	0
Gross Carrying Amount
Land	11,700
Building & Improvements	10,430
Total	22,130
Accumulated depreciation	(814)
Office Building | 875 Howard Street Property
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	18,058
Building & Improvements	41,046
Cost Capitalized Subsequent to Acquisition
Improvements	17,544
Carrying Costs	1,936
Gross Carrying Amount
Land	18,058
Building & Improvements	60,526
Total	78,584
Accumulated depreciation	(13,944)
Office Building | 6040 Sunset (formerly Technicolor Building)
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	6,599
Building & Improvements	27,187
Cost Capitalized Subsequent to Acquisition
Improvements	25,032
Carrying Costs	3,088
Gross Carrying Amount
Land	6,599
Building & Improvements	55,307
Total	61,906
Accumulated depreciation	(19,426)
Office Building | ICON, Los Angeles
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	0
Cost Capitalized Subsequent to Acquisition
Improvements	146,009
Carrying Costs	5,497
Gross Carrying Amount
Land	0
Building & Improvements	151,506
Total	151,506
Accumulated depreciation	(5,494)
Office Building | CUE, Los Angeles
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	0
Cost Capitalized Subsequent to Acquisition
Improvements	35,837
Carrying Costs	1,326
Gross Carrying Amount
Land	0
Building & Improvements	37,163
Total	37,163
Accumulated depreciation	0
Office Building | EPIC, Los Angeles
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	0
Cost Capitalized Subsequent to Acquisition
Improvements	23,783
Carrying Costs	852
Gross Carrying Amount
Land	0
Building & Improvements	24,635
Total	24,635
Accumulated depreciation	0
Office Building | Del Amo Office
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	18,000
Cost Capitalized Subsequent to Acquisition
Improvements	2,458
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	20,458
Total	20,458
Accumulated depreciation	(4,767)
Office Building | 1455 Market
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	41,226
Building & Improvements	34,990
Cost Capitalized Subsequent to Acquisition
Improvements	55,661
Carrying Costs	0
Gross Carrying Amount
Land	41,226
Building & Improvements	90,651
Total	131,877
Accumulated depreciation	(12,725)
Office Building | Rincon Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	98,392
Initial Costs
Land	58,251
Building & Improvements	110,656
Cost Capitalized Subsequent to Acquisition
Improvements	22,396
Carrying Costs	0
Gross Carrying Amount
Land	58,251
Building & Improvements	133,052
Total	191,303
Accumulated depreciation	(24,373)
Office Building | 10950 Washington
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	27,418
Initial Costs
Land	17,979
Building & Improvements	25,110
Cost Capitalized Subsequent to Acquisition
Improvements	745
Carrying Costs	0
Gross Carrying Amount
Land	17,979
Building & Improvements	25,855
Total	43,834
Accumulated depreciation	(4,978)
Office Building | 604 Arizona
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	5,620
Building & Improvements	14,745
Cost Capitalized Subsequent to Acquisition
Improvements	1,332
Carrying Costs	423
Gross Carrying Amount
Land	5,620
Building & Improvements	16,500
Total	22,120
Accumulated depreciation	(2,566)
Office Building | 275 Brannan Street
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	4,187
Building & Improvements	8,063
Cost Capitalized Subsequent to Acquisition
Improvements	14,029
Carrying Costs	1,115
Gross Carrying Amount
Land	4,187
Building & Improvements	23,207
Total	27,394
Accumulated depreciation	(6,253)
Office Building | 625 Second Street
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	10,744
Building & Improvements	42,650
Cost Capitalized Subsequent to Acquisition
Improvements	3,319
Carrying Costs	0
Gross Carrying Amount
Land	10,744
Building & Improvements	45,969
Total	56,713
Accumulated depreciation	(8,564)
Office Building | 6922 Hollywood
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	16,608
Building & Improvements	72,392
Cost Capitalized Subsequent to Acquisition
Improvements	8,302
Carrying Costs	0
Gross Carrying Amount
Land	16,608
Building & Improvements	80,694
Total	97,302
Accumulated depreciation	(15,166)
Office Building | 10900 Washington
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	1,400
Building & Improvements	1,200
Cost Capitalized Subsequent to Acquisition
Improvements	738
Carrying Costs	0
Gross Carrying Amount
Land	1,400
Building & Improvements	1,938
Total	3,338
Accumulated depreciation	(661)
Office Building | 901 Market Street
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	17,882
Building & Improvements	79,305
Cost Capitalized Subsequent to Acquisition
Improvements	13,606
Carrying Costs	0
Gross Carrying Amount
Land	17,882
Building & Improvements	92,911
Total	110,793
Accumulated depreciation	(15,115)
Office Building | Element LA
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	168,000
Initial Costs
Land	79,769
Building & Improvements	19,755
Cost Capitalized Subsequent to Acquisition
Improvements	85,349
Carrying Costs	10,391
Gross Carrying Amount
Land	79,769
Building & Improvements	115,495
Total	195,264
Accumulated depreciation	(10,203)
Office Building | 3401 Exposition
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	14,120
Building & Improvements	11,319
Cost Capitalized Subsequent to Acquisition
Improvements	11,046
Carrying Costs	1,028
Gross Carrying Amount
Land	14,120
Building & Improvements	23,393
Total	37,513
Accumulated depreciation	(2,844)
Office Building | 505 First
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	22,917
Building & Improvements	133,034
Cost Capitalized Subsequent to Acquisition
Improvements	3,905
Gross Carrying Amount
Land	22,917
Building & Improvements	136,939
Total	159,856
Accumulated depreciation	(17,885)
Office Building | 83 King
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	12,982
Building & Improvements	51,403
Cost Capitalized Subsequent to Acquisition
Improvements	5,300
Gross Carrying Amount
Land	12,982
Building & Improvements	56,703
Total	69,685
Accumulated depreciation	(8,345)
Office Building | Met Park North
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	64,500
Initial Costs
Land	28,996
Building & Improvements	71,768
Cost Capitalized Subsequent to Acquisition
Improvements	608
Carrying Costs	0
Gross Carrying Amount
Land	28,996
Building & Improvements	72,376
Total	101,372
Accumulated depreciation	(10,016)
Office Building | Northview Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	4,803
Building & Improvements	41,191
Cost Capitalized Subsequent to Acquisition
Improvements	918
Carrying Costs	0
Gross Carrying Amount
Land	4,803
Building & Improvements	42,109
Total	46,912
Accumulated depreciation	(6,020)
Office Building | Merrill Place
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	27,684
Building & Improvements	29,824
Cost Capitalized Subsequent to Acquisition
Improvements	16,287
Carrying Costs	784
Gross Carrying Amount
Land	27,684
Building & Improvements	46,895
Total	74,579
Accumulated depreciation	(5,251)
Office Building | 450 Alaskan
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	0
Cost Capitalized Subsequent to Acquisition
Improvements	73,226
Carrying Costs	2,542
Gross Carrying Amount
Land	0
Building & Improvements	75,768
Total	75,768
Accumulated depreciation	(201)
Office Building | Palo Alto Square
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	326,033
Cost Capitalized Subsequent to Acquisition
Improvements	17,448
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	343,481
Total	343,481
Accumulated depreciation	(31,719)
Office Building | 3400 Hillview
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	159,641
Cost Capitalized Subsequent to Acquisition
Improvements	2,453
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	162,094
Total	162,094
Accumulated depreciation	(20,037)
Office Building | Foothill Research Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	133,994
Cost Capitalized Subsequent to Acquisition
Improvements	3,011
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	137,005
Total	137,005
Accumulated depreciation	(19,269)
Office Building | Page Mill Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	147,625
Cost Capitalized Subsequent to Acquisition
Improvements	6,748
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	154,373
Total	154,373
Accumulated depreciation	(19,348)
Office Building | Clocktower Square
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	93,949
Cost Capitalized Subsequent to Acquisition
Improvements	539
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	94,488
Total	94,488
Accumulated depreciation	(7,875)
Office Building | Lockheed
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	34,561
Cost Capitalized Subsequent to Acquisition
Improvements	(292)
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	34,269
Total	34,269
Accumulated depreciation	(3,732)
Office Building | Towers at Shore Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	72,673
Building & Improvements	144,188
Cost Capitalized Subsequent to Acquisition
Improvements	7,924
Carrying Costs	0
Gross Carrying Amount
Land	72,673
Building & Improvements	152,112
Total	224,785
Accumulated depreciation	(13,102)
Office Building | Skyway Landing
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	37,959
Building & Improvements	63,559
Cost Capitalized Subsequent to Acquisition
Improvements	2,812
Carrying Costs	0
Gross Carrying Amount
Land	37,959
Building & Improvements	66,371
Total	104,330
Accumulated depreciation	(6,923)
Office Building | Shorebreeze
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	69,448
Building & Improvements	59,806
Cost Capitalized Subsequent to Acquisition
Improvements	7,556
Carrying Costs	0
Gross Carrying Amount
Land	69,448
Building & Improvements	67,362
Total	136,810
Accumulated depreciation	(5,805)
Office Building | 555 Twin Dolphin
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	40,614
Building & Improvements	73,457
Cost Capitalized Subsequent to Acquisition
Improvements	5,409
Carrying Costs	0
Gross Carrying Amount
Land	40,614
Building & Improvements	78,866
Total	119,480
Accumulated depreciation	(7,074)
Office Building | 333 Twin Dolphin
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	36,441
Building & Improvements	64,892
Cost Capitalized Subsequent to Acquisition
Improvements	8,275
Carrying Costs	0
Gross Carrying Amount
Land	36,441
Building & Improvements	73,167
Total	109,608
Accumulated depreciation	(7,136)
Office Building | Peninsula Office Park
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	98,206
Building & Improvements	93,780
Cost Capitalized Subsequent to Acquisition
Improvements	12,094
Carrying Costs	0
Gross Carrying Amount
Land	98,206
Building & Improvements	105,874
Total	204,080
Accumulated depreciation	(12,121)
Office Building | Metro Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	313,683
Cost Capitalized Subsequent to Acquisition
Improvements	39,566
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	353,249
Total	353,249
Accumulated depreciation	(31,341)
Office Building | Concourse
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	45,085
Building & Improvements	224,271
Cost Capitalized Subsequent to Acquisition
Improvements	9,585
Carrying Costs	0
Gross Carrying Amount
Land	45,085
Building & Improvements	233,856
Total	278,941
Accumulated depreciation	(23,035)
Office Building | Gateway
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	33,117
Building & Improvements	121,217
Cost Capitalized Subsequent to Acquisition
Improvements	26,159
Carrying Costs	0
Gross Carrying Amount
Land	33,117
Building & Improvements	147,376
Total	180,493
Accumulated depreciation	(14,718)
Office Building | Metro Plaza
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	16,038
Building & Improvements	106,156
Cost Capitalized Subsequent to Acquisition
Improvements	9,929
Carrying Costs	0
Gross Carrying Amount
Land	16,038
Building & Improvements	116,085
Total	132,123
Accumulated depreciation	(10,924)
Office Building | 1740 Technology
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	8,052
Building & Improvements	49,486
Cost Capitalized Subsequent to Acquisition
Improvements	3,555
Carrying Costs	0
Gross Carrying Amount
Land	8,052
Building & Improvements	53,041
Total	61,093
Accumulated depreciation	(7,032)
Office Building | Skyport Plaza
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	29,033
Building & Improvements	153,844
Cost Capitalized Subsequent to Acquisition
Improvements	(6,501)
Carrying Costs	0
Gross Carrying Amount
Land	29,033
Building & Improvements	147,343
Total	176,376
Accumulated depreciation	(10,401)
Office Building | Techmart Commerce Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	66,660
Cost Capitalized Subsequent to Acquisition
Improvements	10,598
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	77,258
Total	77,258
Accumulated depreciation	(8,244)
Office Building | Campus Center
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	59,460
Building & Improvements	79,604
Cost Capitalized Subsequent to Acquisition
Improvements	7,834
Carrying Costs	0
Gross Carrying Amount
Land	59,460
Building & Improvements	87,438
Total	146,898
Accumulated depreciation	(15,374)
Office Building | 4th and Traction
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	12,140
Building & Improvements	37,110
Cost Capitalized Subsequent to Acquisition
Improvements	38,529
Carrying Costs	6,139
Gross Carrying Amount
Land	12,140
Building & Improvements	81,778
Total	93,918
Accumulated depreciation	0
Office Building | MaxWell
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	13,040
Building & Improvements	26,960
Cost Capitalized Subsequent to Acquisition
Improvements	17,795
Carrying Costs	3,729
Gross Carrying Amount
Land	13,040
Building & Improvements	48,484
Total	61,524
Accumulated depreciation	0
Office Building | 11601 Wilshire
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	28,978
Building & Improvements	321,273
Cost Capitalized Subsequent to Acquisition
Improvements	17,641
Carrying Costs	0
Gross Carrying Amount
Land	28,978
Building & Improvements	338,914
Total	367,892
Accumulated depreciation	(15,876)
Office Building | Hill7
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	101,000
Initial Costs
Land	36,888
Building & Improvements	137,079
Cost Capitalized Subsequent to Acquisition
Improvements	13,394
Carrying Costs	0
Gross Carrying Amount
Land	36,888
Building & Improvements	150,473
Total	187,361
Accumulated depreciation	(5,466)
Office Building | Page Mill Hill
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	0
Building & Improvements	131,402
Cost Capitalized Subsequent to Acquisition
Improvements	1,958
Carrying Costs	0
Gross Carrying Amount
Land	0
Building & Improvements	133,360
Total	133,360
Accumulated depreciation	(5,046)
Media & Entertainment | Sunset Gower Studios
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	5,001
Initial Costs
Land	79,320
Building & Improvements	64,697
Cost Capitalized Subsequent to Acquisition
Improvements	31,416
Carrying Costs	207
Gross Carrying Amount
Land	79,320
Building & Improvements	96,320
Total	175,640
Accumulated depreciation	(23,644)
Media & Entertainment | Sunset Bronson
SEC Schedule III, Real Estate and Accumulated Depreciation
Encumbrances	0
Initial Costs
Land	77,698
Building & Improvements	32,374
Cost Capitalized Subsequent to Acquisition
Improvements	31,543
Carrying Costs	422
Gross Carrying Amount
Land	77,698
Building & Improvements	64,339
Total	142,037
Accumulated depreciation	(11,485)
Media & Entertainment | Sunset Las Palmas Studios
Initial Costs
Land	118,892
Building & Improvements	86,922
Cost Capitalized Subsequent to Acquisition
Improvements	4,773
Carrying Costs	13
Gross Carrying Amount
Land	118,892
Building & Improvements	91,708
Total	210,600
Accumulated depreciation	$ (1,974)

Schedule III - Reconciliation o

Schedule III - Reconciliation of Carrying Amount of Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Beginning balance	$ 6,507,484	$ 5,976,526	$ 2,239,741
Acquisitions	255,848	597,751	3,699,289
Improvements, capitalized costs	330,809	296,399	198,561
Total additions during period	586,657	894,150	3,897,850
Disposal (fully depreciated assets and early terminations)		(27,451)	(13,556)
Cost of property sold		(335,741)	(147,509)
Total deductions during period	(449,892)	(363,192)	(161,065)
Beginning balance	6,644,249	6,507,484	5,976,526
Reclassification to assets associated with real estate held for sale	(220,808)	(629,004)	(353,067)
Total investment in real estate, end of year	6,423,441	5,878,480	5,623,459
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Total accumulated depreciation, beginning of year	(423,950)	(272,724)	(142,561)
Depreciation of real estate	(206,838)	(182,219)	(151,066)
Total additions during period	(206,838)	(182,219)	(151,066)
Deletions	37,925	25,622	12,999
Write-offs due to sale	43,452	5,371	7,904
Total deductions during period	81,377	30,993	20,903
Ending balance, before reclassification to assets associated with real estate held for sale	(549,411)	(423,950)	(272,724)
Reclassification to assets associated with real estate held for sale	15,913	48,743	8,865
Total accumulated depreciation, end of year	$ (533,498)	$ (375,207)	$ (263,859)