Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 43,756	$ 65,969
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	62,120	66,835
Amortization of deferred leasing and other costs	15,678	18,585
Amortization of deferred financing costs	1,318	2,130
Straight-line rental income and expense, net	(2,928)	(8,819)
Impairment Charges	6,405	0
Gains on land and depreciated property sales	(15,621)	(47,284)
Third-party construction contracts, net	1,764	(1,240)
Other accrued revenues and expenses, net	(29,308)	(52,033)
Operating distributions received in excess of (less than) equity in earnings from unconsolidated companies	(16,475)	(1,465)
Net cash provided by operating activities	66,709	42,678
Cash flows from investing activities:
Development of real estate investments	(108,179)	(66,754)
Acquisition of real estate investments and related intangible assets	0	(890)
Acquisition of undeveloped land	(27,243)	0
Second generation tenant improvements, leasing costs and building improvements	(14,401)	(17,496)
Other deferred leasing costs	(8,359)	(13,122)
Other assets	31,948	13,283
Proceeds from land and depreciated property sales, net	57,410	109,892
Capital distributions from unconsolidated companies	29,452	2,164
Capital contributions and advances to unconsolidated companies	(23,237)	(49,689)
Net cash used for investing activities	(62,609)	(22,612)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	548	4,882
Payments on unsecured debt	(579)	(250,544)
Payments on secured indebtedness including principal amortization	(16,377)	(63,151)
Borrowings on line of credit, net	77,000	347,000
Distributions to common shareholders/unitholders	(62,262)	(58,607)
Distributions to Noncontrolling Interest, Net	(630)	(706)
Change in book overdrafts	(8,693)	1,054
Deferred financing costs	0	(110)
Net cash used for financing activities	(10,993)	(20,182)
Net decrease in cash and cash equivalents	(6,893)	(116)
Cash and cash equivalents at beginning of period	22,533	17,922
Cash and cash equivalents at end of period	15,640	17,806
Noncash investing and financing activities:
Mortgages note receivable from buyers in property sales	1,685	0
Conversion of Limited Partner Units to common shares	150	350
Duke Realty Limited Partnership [Member]
Cash flows from operating activities:
Net income	43,756	65,969
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	62,120	66,835
Amortization of deferred leasing and other costs	15,678	18,585
Amortization of deferred financing costs	1,318	2,130
Straight-line rental income and expense, net	(2,928)	(8,819)
Impairment Charges	6,405	0
Gains on land and depreciated property sales	(15,621)	(47,284)
Third-party construction contracts, net	1,764	(1,240)
Other accrued revenues and expenses, net	(29,308)	(52,036)
Operating distributions received in excess of (less than) equity in earnings from unconsolidated companies	(16,475)	(1,465)
Net cash provided by operating activities	66,709	42,675
Cash flows from investing activities:
Development of real estate investments	(108,179)	(66,754)
Acquisition of real estate investments and related intangible assets	0	(890)
Acquisition of undeveloped land	(27,243)	0
Second generation tenant improvements, leasing costs and building improvements	(14,401)	(17,496)
Other deferred leasing costs	(8,359)	(13,122)
Other assets	31,948	13,283
Proceeds from land and depreciated property sales, net	57,410	109,892
Capital distributions from unconsolidated companies	29,452	2,164
Capital contributions and advances to unconsolidated companies	(23,237)	(49,689)
Net cash used for investing activities	(62,609)	(22,612)
Cash flows from financing activities:
Contributions from the General Partner	548	4,885
Payments on unsecured debt	(579)	(250,544)
Payments on secured indebtedness including principal amortization	(16,377)	(63,151)
Borrowings on line of credit, net	77,000	347,000
Distributions to common shareholders/unitholders	(62,889)	(59,239)
Distributions to Noncontrolling Interest, Net	(3)	(74)
Change in book overdrafts	(8,693)	1,054
Deferred financing costs	0	(110)
Net cash used for financing activities	(10,993)	(20,179)
Net decrease in cash and cash equivalents	(6,893)	(116)
Cash and cash equivalents at beginning of period	22,533	17,922
Cash and cash equivalents at end of period	15,640	17,806
Noncash investing and financing activities:
Mortgages note receivable from buyers in property sales	1,685	0
Conversion of Limited Partner Units to common shares	$ 150	$ 350