MORTGAGE AND OTHER INDEBTEDNESS - Summary of Unsecured Term Loans (Details)	9 Months Ended
	Sep. 30, 2023 USD ($) extension	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Gross debt	$ 2,843,202,000	$ 2,978,256,000
Unsecured term loans
Debt Instrument [Line Items]
Gross debt	820,000,000	820,000,000
Unsecured term loans \| $120M unsecured term loan
Debt Instrument [Line Items]
Gross debt	120,000,000	120,000,000
Unsecured term loans \| $120M unsecured term loan \| SOFR
Debt Instrument [Line Items]
Gross debt	$ 120,000,000
Unsecured term loans \| $120M unsecured term loan \| Minimum \| SOFR
Debt Instrument [Line Items]
Credit spread	0.80%
Unsecured term loans \| $120M unsecured term loan \| Maximum \| SOFR
Debt Instrument [Line Items]
Credit spread	1.65%
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P.
Debt Instrument [Line Items]
Gross debt	$ 120,000,000
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P. \| SOFR
Debt Instrument [Line Items]
SOFR adjustment	0.10%
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	1.20%
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	0.80%
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	1.70%
Unsecured term loans \| $120M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	1.65%
Unsecured term loans \| $250M unsecured term loan
Debt Instrument [Line Items]
Gross debt	$ 250,000,000	250,000,000
Number of extension options \| extension	3
Maturity date extension period	1 year
Unsecured term loans \| $250M unsecured term loan \| SOFR
Debt Instrument [Line Items]
Gross debt	$ 250,000,000
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P.
Debt Instrument [Line Items]
Gross debt	$ 250,000,000
Number of extension options \| extension	3
Maturity date extension period	1 year
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P. \| SOFR
Debt Instrument [Line Items]
SOFR adjustment	0.10%
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	2.00%
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	2.00%
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	2.55%
Unsecured term loans \| $250M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	2.50%
Unsecured term loans \| $150M unsecured term loan
Debt Instrument [Line Items]
Gross debt	$ 150,000,000	150,000,000
Unsecured term loans \| $150M unsecured term loan \| SOFR
Debt Instrument [Line Items]
Gross debt	$ 150,000,000
Unsecured term loans \| $150M unsecured term loan \| Minimum \| SOFR
Debt Instrument [Line Items]
Credit spread	0.75%
Unsecured term loans \| $150M unsecured term loan \| Maximum \| SOFR
Debt Instrument [Line Items]
Credit spread	1.60%
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P.
Debt Instrument [Line Items]
Gross debt	$ 150,000,000
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P. \| SOFR
Debt Instrument [Line Items]
SOFR adjustment	0.10%
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	1.20%
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	0.75%
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Leverage-based pricing
Debt Instrument [Line Items]
Credit spread	1.70%
Unsecured term loans \| $150M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	1.60%
Unsecured term loans \| $300M unsecured term loan
Debt Instrument [Line Items]
Gross debt	$ 300,000,000	$ 300,000,000
Unsecured term loans \| $300M unsecured term loan \| SOFR
Debt Instrument [Line Items]
Gross debt	$ 300,000,000
Unsecured term loans \| $300M unsecured term loan \| Minimum \| SOFR
Debt Instrument [Line Items]
Credit spread	1.15%
Unsecured term loans \| $300M unsecured term loan \| Maximum \| SOFR
Debt Instrument [Line Items]
Credit spread	2.20%
Unsecured term loans \| $300M unsecured term loan \| Kite Realty Group, L.P.
Debt Instrument [Line Items]
Gross debt	$ 300,000,000
Unsecured term loans \| $300M unsecured term loan \| Kite Realty Group, L.P. \| SOFR
Debt Instrument [Line Items]
SOFR adjustment	0.10%
Unsecured term loans \| $300M unsecured term loan \| Kite Realty Group, L.P. \| Minimum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	1.15%
Unsecured term loans \| $300M unsecured term loan \| Kite Realty Group, L.P. \| Maximum \| SOFR \| Investment grade pricing
Debt Instrument [Line Items]
Credit spread	2.20%