Consolidated Statements of Operations (KILROY REALTY, L.P.) (USD $) In Thousands, except Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
REVENUES:
Rental income	$ 89,306		$ 72,135		$ 252,102		$ 196,883
Tenant reimbursements	7,683		6,156		21,469		18,261
Other property income	348		985		2,863		2,325
Total revenues	97,337	[1]	79,276	[1]	276,434	[1]	217,469	[1]
EXPENSES:
Property expenses	19,361		15,802		54,548		42,255
Real estate taxes	8,360		7,582		24,878		20,035
Provision for bad debts	(5)		(857)		141		(843)
Ground leases (Note 11)	503		336		1,266		648
General and administrative expenses	6,355		7,273		20,355		21,096
Acquisition-related expenses	1,163		354		2,829		1,624
Depreciation and amortization	36,152		29,951		97,513		74,405
Total expenses	71,889		60,441		201,530		159,220
OTHER (EXPENSES) INCOME:
Interest income and other net investment gains (Note 12)	30		337		272		703
Interest expense (Note 5)	(24,051)		(15,853)		(66,155)		(40,897)
Loss on early extinguishment of debt	0		0		0		(4,564)
Total other (expenses) income	(24,021)		(15,516)		(65,883)		(44,758)
INCOME FROM CONTINUING OPERATIONS	1,427		3,319		9,021		13,491
DISCONTINUED OPERATIONS (Note 14)
Net income from discontinued operations	308		350		1,053		1,011
Net gain on dispositions of discontinued operations	12,555		0		12,555		0
Total income from discontinued operations	12,863	[2]	350	[2]	13,608	[2]	1,011	[2]
NET INCOME	14,290		3,669		22,629		14,502
NET INCOME ATTRIBUTABLE TO KILROY REALTY, L.P.	13,994		3,673		22,309		14,374
Preferred distributions	(3,799)		(3,799)		(11,397)		(11,397)
NET INCOME (LOSS) AVAILABLE TO COMMON UNITHOLDERS	10,195		(126)		10,912		2,977
(Loss) income from continuing operations available to common unitholders per common unit-basic	$ (0.05)		$ (0.01)		$ (0.06)		$ 0.02
(Loss) income from continuing operations available to common unitholders per common unit-diluted	$ (0.05)		$ (0.01)		$ (0.06)		$ 0.02
Net income (loss) available to common unitholders per unit-basic	$ 0.17		$ (0.01)		$ 0.18		$ 0.04
Net income (loss) available to common unitholders per unit-diluted	$ 0.17		$ (0.01)		$ 0.18		$ 0.04
Weighted average common units outstanding - basic (Note 16)	58,355,127		52,274,316		56,136,477		48,561,614
Weighted average common units outstanding - diluted (Note 16)	58,355,127		52,274,316		56,136,477		48,565,028
Kilroy Realty, L.P. [Member]
REVENUES:
Rental income	89,306		72,135		252,102		196,883
Tenant reimbursements	7,683		6,156		21,469		18,261
Other property income	348		985		2,863		2,325
Total revenues	97,337		79,276		276,434		217,469
EXPENSES:
Property expenses	19,361		15,802		54,548		42,255
Real estate taxes	8,360		7,582		24,878		20,035
Provision for bad debts	(5)		(857)		141		(843)
Ground leases (Note 11)	503		336		1,266		648
General and administrative expenses	6,355		7,273		20,355		21,096
Acquisition-related expenses	1,163		354		2,829		1,624
Depreciation and amortization	36,152		29,951		97,513		74,405
Total expenses	71,889		60,441		201,530		159,220
OTHER (EXPENSES) INCOME:
Interest income and other net investment gains (Note 12)	30		337		272		703
Interest expense (Note 5)	(24,051)		(15,853)		(66,155)		(40,897)
Loss on early extinguishment of debt	0		0		0		(4,564)
Total other (expenses) income	(24,021)		(15,516)		(65,883)		(44,758)
INCOME FROM CONTINUING OPERATIONS	1,427		3,319		9,021		13,491
DISCONTINUED OPERATIONS (Note 14)
Net income from discontinued operations	308		350		1,053		1,011
Net gain on dispositions of discontinued operations	12,555		0		12,555		0
Total income from discontinued operations	12,863		350		13,608		1,011
NET INCOME	14,290		3,669		22,629		14,502
Net income attributable to noncontrolling interests in consolidated subsidiaries	(30)		(41)		(95)		(138)
NET INCOME ATTRIBUTABLE TO KILROY REALTY, L.P.	14,260		3,628		22,534		14,364
Preferred distributions	(3,799)		(3,799)		(11,397)		(11,397)
NET INCOME (LOSS) AVAILABLE TO COMMON UNITHOLDERS	$ 10,461		$ (171)		$ 11,137		$ 2,967
(Loss) income from continuing operations available to common unitholders per common unit-basic	$ (0.05)		$ (0.01)		$ (0.06)		$ 0.02
(Loss) income from continuing operations available to common unitholders per common unit-diluted	$ (0.05)		$ (0.01)		$ (0.06)		$ 0.02
Net income (loss) available to common unitholders per unit-basic	$ 0.17		$ (0.01)		$ 0.18		$ 0.04
Net income (loss) available to common unitholders per unit-diluted	$ 0.17		$ (0.01)		$ 0.18		$ 0.04
Weighted average common units outstanding - basic (Note 16)	60,073,258		53,997,447		57,857,538		50,284,745
Weighted average common units outstanding - diluted (Note 16)	60,073,258		53,997,447		57,857,538		50,288,159
Distributions declared per common unit	$ 0.35		$ 0.35		$ 1.05		$ 1.05

[1] All operating revenues are comprised of amounts received from third-party tenants.

[2] Income from discontinued operations is from our Reportable Segment - Office Properties.