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MORTGAGE AND OTHER INDEBTEDNESS - Additional Information (Details) |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 17, 2021 $ / shares | Oct. 31, 2024 extension | Jul. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Jul. 31, 2022 USD ($) extension | Mar. 31, 2021 USD ($) day $ / shares | Sep. 30, 2024 USD ($) extension | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | Aug. 31, 2024 USD ($) | Jan. 31, 2024 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Repayment of long-term debt |  |  |  |  |  |  | $ 313,464,000 | $ 467,149,000 |  |  |
Gross debt |  |  |  |  |  |  | 3,229,477,000 |  | $ 2,802,941,000 |  |
Net proceeds from offering |  |  |  |  |  |  | 732,993,000 | 332,095,000 |  |  |
Percentage bearing fixed interest, amount |  |  |  |  |  |  | 2,500,000,000 |  |  |  |
Percentage bearing variable interest, amount |  |  |  |  |  |  | $ 715,200,000 |  |  |  |
Unsecured Revolving Line of Credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 6.11% |  | 6.58% |  |
Gross debt |  |  |  |  |  |  | $ 0 |  | $ 0 |  |
Number of extension options | extension |  |  |  |  |  |  | 2 |  |  |  |
Extension period |  |  |  |  |  |  | 6 months |  |  |  |
Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Repayment of long-term debt |  |  |  |  |  |  | $ 313,464,000 | 467,149,000 |  |  |
Net proceeds from offering |  |  |  |  |  |  | 732,993,000 | 332,095,000 |  |  |
Kite Realty Group, L.P. | Unsecured Revolving Line of Credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit, aggregate borrowing capacity |  |  |  |  | $ 1,100,000,000 |  | $ 1,100,000,000 |  |  |  |
Line of credit, accordion feature, increase limit |  |  |  |  | 600,000,000 |  |  |  |  |  |
Line of credit, accordion feature, maximum borrowing capacity |  |  |  |  | $ 2,000,000,000 |  |  |  |  |  |
Number of extension options | extension |  |  |  |  | 2 |  | 2 |  |  |  |
Extension period |  |  |  |  | 6 months |  | 6 months |  |  |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Credit spread, increase (as a percent) |  |  |  |  | 0.10% |  | 0.10% |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  |  |  |  |  |  | 0.0001 |  |  |  |
Kite Realty Group, L.P. | Unsecured Revolving Line of Credit | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  | 0.0002 |  |  |  |  |  |  |  |  |
Covenant, total leverage ratio, minimum |  | 0.350 |  |  |  |  |  |  |  |  |
Covenant, total leverage ratio, maximum |  | 0.375 |  |  |  |  |  |  |  |  |
Kite Realty Group, L.P. | Unsecured Revolving Line of Credit | Debt Instrument, Maturity Option, One | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of extension options | extension |  | 1 |  |  |  |  |  |  |  |  |
Extension period |  | 1 year |  |  |  |  |  |  |  |  |
Kite Realty Group, L.P. | Unsecured Revolving Line of Credit | Debt Instrument, Maturity Option, Two | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of extension options | extension |  | 2 |  |  |  |  |  |  |  |  |
Extension period |  | 6 months |  |  |  |  |  |  |  |  |
$250M Unsecured Term Loan | Kite Realty Group, L.P. | Subsequent Event | Minimum | Variable Rate Component One |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 0.75% |  |  |  |  |  |  |  |  |
$250M Unsecured Term Loan | Kite Realty Group, L.P. | Subsequent Event | Minimum | Variable Rate Component Two |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 0.00% |  |  |  |  |  |  |  |  |
$250M Unsecured Term Loan | Kite Realty Group, L.P. | Subsequent Event | Maximum | Variable Rate Component One |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 1.60% |  |  |  |  |  |  |  |  |
$250M Unsecured Term Loan | Kite Realty Group, L.P. | Subsequent Event | Maximum | Variable Rate Component Two |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  | 0.60% |  |  |  |  |  |  |  |  |
Fixed Rate Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt, fair value |  |  |  |  |  |  | $ 2,500,000,000 |  |  |  |
Fixed Rate Debt | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 5.18% |  |  |  |
Fixed Rate Debt | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 6.26% |  |  |  |
Variable Rate Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt, fair value |  |  |  |  |  |  | $ 717,000,000.0 |  |  |  |
Variable Rate Debt | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable interest rate (as a percent) |  |  |  |  |  |  | 6.00% |  |  |  |
Variable Rate Debt | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable interest rate (as a percent) |  |  |  |  |  |  | 6.05% |  |  |  |
Mortgages Payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Scheduled principal payments |  |  |  |  |  |  | $ 3,800,000 |  |  |  |
Gross debt |  |  |  |  |  |  | 149,477,000 |  | 153,306,000 |  |
Mortgages Payable | Fixed Rate Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 134,277,000 |  | $ 136,306,000 |  |
Mortgages Payable | Fixed Rate Debt | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 3.75% |  | 3.75% |  |
Mortgages Payable | Fixed Rate Debt | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 5.73% |  | 5.73% |  |
Mortgages Payable | Variable Rate Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 15,200,000 |  | $ 17,000,000 |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Bloomberg Short Term Bank Yield Index [Member] |  | Bloomberg Short Term Bank Yield Index [Member] |  |
Credit spread (as a percent) |  |  |  |  |  |  | 2.15% |  |  |  |
Variable interest rate (as a percent) |  |  |  |  |  |  | 4.87% |  | 5.44% |  |
Mortgages Payable | Variable Rate Debt | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable interest rate, type [Extensible enumeration] |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |
Senior Unsecured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 2,380,000,000 |  | $ 1,829,635,000 |  |
Senior Unsecured Notes | Senior Notes - 5.50% Due 2034 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt issued |  |  |  |  |  |  |  |  |  |  | $ 350,000,000
Interest rate (as a percent) |  |  |  |  |  |  | 5.50% |  |  |  | 5.50%
Interest rate, percentage of principal amount (as a percent) |  |  |  |  |  |  |  |  |  |  | 0.98670
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  | 5.673%
Gross debt |  |  |  |  |  |  | $ 350,000,000 |  | $ 0 |  |
Senior Unsecured Notes | Senior Notes - 4.58% Due 2024 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  | 4.58% |  |  |  |  | 4.58% |  |
Repayment of long-term debt |  |  |  | $ 149,600,000 |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  |  |  | $ 149,635,000 |  |
Senior Unsecured Notes | Senior Notes - 4.95% Due 2031 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt issued |  |  |  |  |  |  |  |  |  | $ 350,000,000 |
Interest rate (as a percent) |  |  |  |  |  |  | 4.95% |  | 0.00% | 4.95% |
Interest rate, percentage of principal amount (as a percent) |  |  |  |  |  |  |  |  |  | 0.99328 |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  | 5.062% |
Gross debt |  |  |  |  |  |  | $ 350,000,000 |  | $ 0 |  |
Senior Unsecured Notes | Senior Notes - 4.00% Due 2025 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 4.00% |  | 4.00% |  |
Gross debt |  |  |  |  |  |  | $ 350,000,000 |  | $ 350,000,000 |  |
Senior Exchangeable Notes | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt issued |  |  |  |  |  | $ 175,000,000 |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  | 0.75% |  |  |  |  |
Net proceeds from offering |  |  |  |  |  | $ 169,700,000 |  |  |  |  |
Interest expense |  |  |  |  |  |  | $ 1,000,000 | $ 1,000,000 |  |  |
Exchangeable conversion ratio |  |  |  |  |  | 0.0396628 | 0.0406713 |  |  |  |
Conversion price (in USD per share) | $ / shares |  |  |  |  |  | $ 25.21 |  |  |  |  |
Exchange premium, percent of closing price (as a percent) |  |  |  |  |  | 25.00% |  |  |  |  |
Percentage of exchange price (as a percent) |  |  |  |  |  | 130.00% |  |  |  |  |
Trading days | day |  |  |  |  |  | 20 |  |  |  |  |
Consecutive trading days | day |  |  |  |  |  | 30 |  |  |  |  |
Redemption price, percentage (as a percent) |  |  |  |  |  | 100.00% |  |  |  |  |
Senior Exchangeable Notes | Kite Realty Group, L.P. | Common Shares |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Common stock closing price (in USD per share) | $ / shares | $ 20.17 |  |  |  |  |  |  |  |  |  |
Senior Exchangeable Notes | Capped Call | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exchange premium, percent of closing price (as a percent) |  |  |  |  |  | 50.00% |  |  |  |  |
Exchange price (in USD per share) | $ / shares |  |  |  |  |  | $ 30.26 |  |  |  |  |
Purchase of capped calls |  |  |  |  |  |  | $ 9,800,000 |  |  |  |
Unsecured Term Loans |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 700,000,000 |  | $ 820,000,000 |  |
Unsecured Term Loans | $120M Unsecured Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 0.00% |  | 2.68% |  |
Repayment of long-term debt |  |  | $ 120,000,000 |  |  |  |  |  |  |  |
Gross debt |  |  | $ 120,000,000 |  |  |  | $ 0 |  | $ 120,000,000 |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  |  |  | 1.58% |  |
Variable interest rate (as a percent) |  |  |  |  |  |  |  |  | 1.10% |  |
Unsecured Term Loans | $120M Unsecured Term Loan | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  |  |  | 0.80% |  |
Unsecured Term Loans | $120M Unsecured Term Loan | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  |  |  | 1.65% |  |
Unsecured Term Loans | $300M Unsecured Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 3.82% |  | 3.82% |  |
Gross debt |  |  |  |  |  |  | $ 300,000,000 |  | $ 300,000,000 |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  | Secured Overnight Financing Rate (SOFR) [Member] |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 2.47% |  |  |  |
Variable interest rate (as a percent) |  |  |  |  |  |  | 1.35% |  | 1.35% |  |
Unsecured Term Loans | $300M Unsecured Term Loan | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  | 1.15% |  |  |  |
Unsecured Term Loans | $300M Unsecured Term Loan | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  | 2.20% |  |  |  |
Unsecured Term Loans | $300M Unsecured Term Loan | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount of debt issued |  |  |  |  | $ 300,000,000 |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 300,000,000 |  |  |  |
Debt instrument term (in years) |  |  |  |  | 7 years |  |  |  |  |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Credit spread, increase (as a percent) |  |  |  |  |  |  | 0.10% |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  |  |  |  |  |  | 0.0001 |  |  |  |
Unsecured Term Loans | $250M Unsecured Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 5.09% |  | 5.09% |  |
Gross debt |  |  |  |  |  |  | $ 250,000,000 |  | $ 250,000,000 |  |
Number of extension options | extension |  |  |  |  |  |  | 3 |  |  |  |
Extension period |  |  |  |  |  |  | 1 year |  |  |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 5.09% |  |  |  |
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 |  |  |  |
Extension period |  |  |  |  |  |  | 1 year |  |  |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Credit spread, increase (as a percent) |  |  |  |  |  |  | 0.10% |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 300,000,000.0 |  |  |  |
Unsecured Term Loans | $250M Unsecured Term Loan | Kite Realty Group, L.P. | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of extension options | extension |  | 1 |  |  |  |  |  |  |  |  |
Extension period |  | 1 year |  |  |  |  |  |  |  |  |
Unsecured Term Loans | $150M Unsecured Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  | 2.73% |  | 2.73% |  |
Gross debt |  |  |  |  |  |  | $ 150,000,000 |  | $ 150,000,000 |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  | Secured Overnight Financing Rate (SOFR) [Member] |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 1.68% |  |  |  |
Variable interest rate (as a percent) |  |  |  |  |  |  | 1.05% |  | 1.05% |  |
Unsecured Term Loans | $150M Unsecured Term Loan | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  | 0.75% |  |  |  |
Unsecured Term Loans | $150M Unsecured Term Loan | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit spread (as a percent) |  |  |  |  |  |  | 1.60% |  |  |  |
Unsecured Term Loans | $150M Unsecured Term Loan | Kite Realty Group, L.P. |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gross debt |  |  |  |  |  |  | $ 150,000,000 |  |  |  |
Variable interest rate, type [Extensible enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |
Credit spread, increase (as a percent) |  |  |  |  |  |  | 0.10% |  |  |  |
Reduction of interest rate margin upon achievement of sustainability metric |  |  |  |  |  |  | 0.0001 |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 250,000,000 |  |  |  |

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- Definition Debt Instrument, Basis Spread on Variable Rate, Upon Sustainability Metric Target Achievement + References No definition available. + Details
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- Definition Debt Instrument, Covenant, Total Leverage Ratio, Maximum + References No definition available. + Details
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- Definition Debt Instrument, Covenant, Total Leverage Ratio, Minimum + References No definition available. + Details
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