Consolidated Statements of Partners' Equity (Unaudited) - USD ($) $ in Thousands	Total	KRG, LP	KRG, LP General Partner Common Equity	KRG, LP General Partner Accumulated Other Comprehensive Loss
Partners' capital, beginning balance at Dec. 31, 2018		$ 1,412,705	$ 1,416,202	$ (3,497)
Increase (Decrease) in Partners' Capital [Roll Forward]
Stock compensation activity		1,161	1,161
Other comprehensive loss attributable to Parent Company	$ (4,930)	(4,930)		(4,930)
Distributions declared to Parent Company		(26,672)	(26,672)
Net income/loss		5,715	5,715
Conversion of Limited Partner Units to shares of the Parent Company		127
Adjustment to redeemable noncontrolling interests		(1,282)	(1,282)
Partners' capital, ending balance at Mar. 31, 2019		1,386,824	1,395,251	(8,427)
Partners' capital, beginning balance at Dec. 31, 2018		1,412,705	1,416,202	(3,497)
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income/loss		3,919
Partners' capital, ending balance at Jun. 30, 2019		1,352,663	1,368,555	(15,892)
Partners' capital, beginning balance at Mar. 31, 2019		1,386,824	1,395,251	(8,427)
Increase (Decrease) in Partners' Capital [Roll Forward]
Stock compensation activity		1,817	1,817
Other comprehensive loss attributable to Parent Company	(7,465)	(7,465)		(7,465)
Distributions declared to Parent Company		(26,665)	(26,665)
Net income/loss		(1,796)	(1,796)
Adjustment to redeemable noncontrolling interests		(52)	(52)
Partners' capital, ending balance at Jun. 30, 2019		1,352,663	1,368,555	(15,892)
Partners' capital, beginning balance at Dec. 31, 2019		1,289,038	1,305,321	(16,283)
Increase (Decrease) in Partners' Capital [Roll Forward]
Stock compensation activity		267	267
Other comprehensive loss attributable to Parent Company	(16,167)	(16,167)		(16,167)
Distributions declared to Parent Company		(27,011)	(27,011)
Net income/loss		(74)	(74)
Adjustment to redeemable noncontrolling interests		6,778	6,778
Partners' capital, ending balance at Mar. 31, 2020		1,252,831	1,285,281	(32,450)
Partners' capital, beginning balance at Dec. 31, 2019		1,289,038	1,305,321	(16,283)
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income/loss		(4,842)
Partners' capital, ending balance at Jun. 30, 2020		1,248,215	1,282,245	(34,030)
Partners' capital, beginning balance at Mar. 31, 2020		1,252,831	1,285,281	(32,450)
Increase (Decrease) in Partners' Capital [Roll Forward]
Stock compensation activity		1,786	1,786
Other comprehensive loss attributable to Parent Company	$ (1,580)	(1,580)		(1,580)
Net income/loss		(4,769)	(4,769)
Adjustment to redeemable noncontrolling interests		(53)	(53)
Partners' capital, ending balance at Jun. 30, 2020		$ 1,248,215	$ 1,282,245	$ (34,030)

Partners' Capital Account, Adjustment to Redeemable Noncontrolling Interests

No definition available.

Name:	krg_PartnersCapitalAccountAdjustmenttoRedeemableNoncontrollingInterests
Namespace Prefix:	krg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of distributions to the general partner during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_GeneralPartnersCapitalAccountDistributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_IncreaseDecreaseInPartnersCapitalRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate amount of net income allocated to general partners.

+ References

+ Details

Name:	us-gaap_NetIncomeLossAllocatedToGeneralPartners
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount after tax of other comprehensive income (loss) attributable to parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of ownership interest of different classes of partners in limited partnership.

+ References

+ Details

Name:	us-gaap_PartnersCapital
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Total change in each class of partners' capital accounts during the year due to exchanges and conversions. Partners include general, limited and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_PartnersCapitalAccountExchangesAndConversions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) in partners' capital account for unit-based payment arrangement issued by partnership. Partner includes, but is not limited to, general, limited and preferred partners.

+ References

+ Details

Name:	us-gaap_PartnersCapitalAccountUnitBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration