| Submission | Oct. 01, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0001408100 |
| Registrant Name | Kennedy-Wilson Holdings, Inc. |
| Form Type | S-3 |
| Submission Type | S-3 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Oct. 01, 2024 USD ($) shares |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(a) | true |
| Security Type | Equity |
| Security Class Title | 5.75% Series A Cumulative Perpetual Convertible Preferred Stock, $0.0001 par value per share |
| Amount Registered | shares | 300,000 |
| Proposed Maximum Offering Price per Unit | 1,000 |
| Maximum Aggregate Offering Price | $ 300,000,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 45,930 |
| Offering Note | Estimated pursuant to Rule 457(a) under the Securities Act solely for purposes of calculating the amount of registration fee. |
| Fees Summary | Oct. 01, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 300,000,000 |
| Previously Paid Amount | 0 |
| Total Fee Amount | 45,930 |
| Total Offset Amount | 0 |
| Net Fee | $ 45,930 |
