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MORTGAGE AND OTHER INDEBTEDNESS - Additional Information (Details) |  | 1 Months Ended | 12 Months Ended |  |  |
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Mar. 17, 2021 $ / shares | Jul. 31, 2022 USD ($) extension | Oct. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) day $ / shares | Aug. 31, 2015 USD ($) | Dec. 31, 2023 USD ($) extension | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Feb. 20, 2024 USD ($) | Oct. 31, 2018 USD ($) | Sep. 30, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 2,802,941,000 | $ 2,978,256,000 |  |  |  |
Repayments of long-term debt |  |  |  |  |  | $ 544,410,000 | 568,963,000 | $ 77,591,000 |  |  |
Weighted average years to maturity |  |  |  |  |  | 3 years 7 months 6 days |  |  |  |  |
Loan proceeds |  |  |  |  |  | $ 369,095,000 | 455,000,000 | 215,000,000 |  |  |
Purchase of capped calls |  |  |  |  |  |  |  | 9,800,000 |  |  |
Interest costs capitalized |  |  |  |  |  | 3,700,000 | 2,400,000 | 1,600,000 |  |  |
Percentage bearing fixed interest, amount |  |  |  |  |  | 2,000,000,000 |  |  |  |  |
Percentage bearing variable interest, amount |  |  |  |  |  | 837,000,000 |  |  |  |  |
Unsecured revolving line of credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 0 | $ 0 |  |  |  |
Extension period |  |  |  |  |  | 6 months |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 6.58% | 5.56% |  |  |  |
Number of extension options | extension |  |  |  |  |  | 2 |  |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  |  |  |  |  | 0.0001 |  |  |  |  |
Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | $ 544,410,000 | $ 568,963,000 | 77,591,000 |  |  |
Loan proceeds |  |  |  |  |  | $ 369,095,000 | 455,000,000 | 215,000,000 |  |  |
Purchase of capped calls |  |  |  |  |  |  |  | 9,800,000 |  |  |
Kite Realty Group, L.P. | Unsecured revolving line of credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Extension period |  | 6 months |  |  |  | 6 months |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 1,100,000,000 |  |  |  | $ 1,100,000,000 |  |  |  |  |
Increase in line of credit or term loan limit |  | 600,000,000 |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity option |  | $ 2,000,000,000 |  |  |  |  |  |  |  |  |
Number of extension options | extension |  | 2 |  |  |  | 2 |  |  |  |  |
Kite Realty Group, L.P. | Unsecured revolving line of credit | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.10% |  |  |  | 0.10% |  |  |  |  |
Mortgages payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 153,306,000 | 233,621,000 |  |  |  |
Repayments of debt |  |  |  |  |  | 161,500,000 |  |  |  |  |
Scheduled principal payments |  |  |  |  |  | $ 4,000,000 |  |  |  |  |
Mortgages payable | Weighted Average |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 3.85% |  |  |  |  |
Senior unsecured notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 1,829,635,000 | 1,924,635,000 |  |  |  |
Senior exchangeable notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  | 0.75% |  |  |  |  |  |  |
Loan proceeds |  |  |  | $ 169,700,000 |  |  |  |  |  |  |
Interest expense |  |  |  |  |  | 1,300,000 | 1,300,000 | $ 1,600,000 |  |  |
Exchangeable conversion ratio |  |  |  | 0.0396628 |  |  |  |  |  |  |
Conversion price (in dollars per share) | $ / shares |  |  |  | $ 25.21 |  |  |  |  |  |  |
Exchange premium, percent of closing price (as a percent) |  |  |  | 25.00% |  |  |  |  |  |  |
Senior exchangeable notes | Common Shares |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock closing price (in dollars per share) | $ / shares | $ 20.17 |  |  |  |  |  |  |  |  |  |
Senior exchangeable notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  | 0.75% |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  | $ 175,000,000 |  |  |  |  |  |  |
Redemption price, percentage (as a percent) |  |  |  | 100.00% |  |  |  |  |  |  |
Percentage of exchange price (as a percent) |  |  |  | 130.00% |  |  |  |  |  |  |
Trading days | day |  |  |  | 20 |  |  |  |  |  |  |
Consecutive trading days | day |  |  |  | 30 |  |  |  |  |  |  |
Unsecured term loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | 820,000,000 | 820,000,000 |  |  |  |
Fixed rate debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt, fair value |  |  |  |  |  | $ 1,900,000,000 |  |  |  |  |
Fixed rate debt | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 5.53% |  |  |  |  |
Fixed rate debt | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 7.48% |  |  |  |  |
Fixed rate debt | Mortgages payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 136,306,000 | $ 205,328,000 |  |  |  |
Weighted average years to maturity |  |  |  |  |  | 8 years 1 month 6 days | 1 year 4 months 24 days |  |  |  |
Fixed rate debt | Mortgages payable | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 3.75% | 3.75% |  |  |  |
Fixed rate debt | Mortgages payable | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 5.73% | 5.73% |  |  |  |
Variable rate debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt, fair value |  |  |  |  |  | $ 841,100,000 |  |  |  |  |
Variable rate debt | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage bearing variable interest (as a percent) |  |  |  |  |  | 6.50% |  |  |  |  |
Variable rate debt | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage bearing variable interest (as a percent) |  |  |  |  |  | 7.45% |  |  |  |  |
Variable rate debt | Mortgages payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 17,000,000 | $ 28,293,000 |  |  |  |
Extension period |  |  |  |  |  | 1 year |  |  |  |  |
Repayments of debt |  |  |  |  |  | $ 9,900,000 |  |  |  |  |
Weighted average years to maturity |  |  |  |  |  | 2 years 7 months 6 days | 7 months 6 days |  |  |  |
Senior notes – 4.23% due 2023 | Senior unsecured notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 95,000,000 |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 4.23% |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | $ 95,000,000 |  |  |  |  |
Senior notes – 5.50% due 2034 | Senior unsecured notes | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  |  |  |  | 5.50% |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  | $ 350,000,000 |  |
Private Placement Notes | Senior unsecured notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  | $ 250,000,000 |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  | 4.41% |  |  |  |  |  |
Weighted average years to maturity |  |  |  |  | 9 years 9 months 18 days |  |  |  |  |  |
Redemption price, percentage (as a percent) |  |  |  |  |  | 100.00% |  |  |  |  |
Private Placement Notes | Senior unsecured notes | Kite Realty Group, L.P. | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum percentage of principal amount available to be redeemed (as a percent) |  |  |  |  |  | 5.00% |  |  |  |  |
Private Placement Notes | Senior unsecured notes | Retail Properties of America, Inc. | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt assumed in the RPAI merger |  |  | $ 450,000,000 |  |  |  |  |  |  |  |
Public Placement Notes | Senior unsecured notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price, percentage (as a percent) |  |  |  |  |  | 100.00% |  |  |  |  |
Redemption period, prior to maturity date |  |  |  |  |  | 3 months |  |  |  |  |
Public Placement Notes | Senior unsecured notes | Retail Properties of America, Inc. | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt assumed in the RPAI merger |  |  | $ 750,000,000 |  |  |  |  |  |  |  |
Senior notes – 4.00% due 2026 | Senior unsecured notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  |  |  |  |  |  | 4.00%
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
Capped Call | Senior exchangeable notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exchange premium, percent of closing price (as a percent) |  |  |  | 50.00% |  |  |  |  |  |  |
Exchange price (in dollars per share) | $ / shares |  |  |  | $ 30.26 |  |  |  |  |  |  |
Purchase of capped calls |  |  |  |  |  | $ 9,800,000 |  |  |  |  |
$300M unsecured term loan | Unsecured term loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 300,000,000 | $ 300,000,000 |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 3.82% | 4.05% |  |  |  |
$300M unsecured term loan | Unsecured term loans | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 300,000,000 | $ 300,000,000 |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 2.47% | 2.70% |  |  |  |
Percentage bearing variable interest (as a percent) |  |  |  |  |  | 1.35% | 1.35% |  |  |  |
$300M unsecured term loan | Unsecured term loans | Minimum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 1.15% | 1.15% |  |  |  |
$300M unsecured term loan | Unsecured term loans | Maximum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 2.20% | 2.20% |  |  |  |
$300M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 7 years |  |  |  |  |  |  |  |  |
Gross debt |  | $ 300,000,000 |  |  |  | $ 300,000,000 |  |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  | 0.0001 | 0.0001 |  |  |  |  |  |  |  |
$300M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.10% |  |  |  | 0.10% |  |  |  |  |
$300M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | Minimum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 1.15% |  |  |  |  |  |  |  |  |
$300M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | Maximum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 2.20% |  |  |  |  |  |  |  |  |
$120M unsecured term loan | Unsecured term loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 120,000,000 | $ 120,000,000 |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 2.68% | 2.68% |  |  |  |
$120M unsecured term loan | Unsecured term loans | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 120,000,000 |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 1.58% |  |  |  |  |
Percentage bearing variable interest (as a percent) |  |  |  |  |  | 1.10% | 1.10% |  |  |  |
$120M unsecured term loan | Unsecured term loans | Minimum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 0.80% |  |  |  |  |
$120M unsecured term loan | Unsecured term loans | Maximum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 1.65% |  |  |  |  |
$120M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  | $ 120,000,000 |  |  | $ 120,000,000 |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | 250,000,000 |  |  |  |  |  |  |  |
$120M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  | 0.10% |  |  |  |  |
$150M unsecured term loan | Unsecured term loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 150,000,000 | $ 150,000,000 |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 2.73% | 2.73% |  |  |  |
$150M unsecured term loan | Unsecured term loans | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 150,000,000 |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 1.68% |  |  |  |  |
Percentage bearing variable interest (as a percent) |  |  |  |  |  | 1.05% | 1.05% |  |  |  |
$150M unsecured term loan | Unsecured term loans | Minimum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 0.75% |  |  |  |  |
$150M unsecured term loan | Unsecured term loans | Maximum | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  | 1.60% |  |  |  |  |
$150M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  | $ 150,000,000 |  |  | $ 150,000,000 |  |  |  |  |
$150M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  | 0.10% |  |  |  |  |
$250M unsecured term loan | Unsecured term loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 250,000,000 | $ 250,000,000 |  |  |  |
Extension period |  |  |  |  |  | 1 year |  |  |  |  |
Interest rate, stated percentage (as a percent) |  |  |  |  |  | 5.09% | 5.09% |  |  |  |
Number of extension options | extension |  |  |  |  |  | 3 |  |  |  |  |
$250M unsecured term loan | Unsecured term loans | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 250,000,000 |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 5.09% |  |  |  |  |
$250M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  | $ 250,000,000 |  |  |  | $ 250,000,000 |
Extension period |  |  |  |  |  | 1 year |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  | 250,000,000 |
Number of extension options | extension |  |  |  |  |  | 3 |  |  |  |  |
Term loan, option to increase maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 300,000,000 |
$250M unsecured term loan | Unsecured term loans | Kite Realty Group, L.P. | SOFR |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  | 0.10% |  |  |  |  |
One Loudoun Downtown - Pads G & H Joint Venture | Fixed rate debt | Mortgages payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  |  |  |  | 10 years |  |  |  |  |
Gross debt |  |  |  |  |  | $ 95,100,000 |  |  |  |  |
Percentage bearing fixed interest (as a percent) |  |  |  |  |  | 5.36% |  |  |  |  |

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- Definition Line items represent financial concepts included in a table. 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