Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue
Total revenue	$ 135.7	$ 132.0	$ 264.0	$ 268.4
(Loss) income from unconsolidated investments
Principal co-investments	1.8	(5.8)	21.4	3.9
Carried interests	(2.0)	(12.3)	(10.2)	(28.7)
Total (loss) income from unconsolidated investments	(0.2)	(18.1)	11.2	(24.8)
Gain on sale of real estate, net	55.1	0.2	54.3	106.6
Expenses
Carried interests compensation	(0.6)	(4.5)	(3.3)	(10.0)
General and administrative	8.8	9.5	19.2	17.8
Depreciation and amortization	34.5	36.4	68.6	75.3
Total expenses	110.4	110.2	217.2	224.3
Interest expense	(62.5)	(63.8)	(123.9)	(128.5)
Loss on early extinguishment of debt	(2.1)	(0.5)	(2.1)	(0.2)
Other (loss) income	(5.6)	0.3	(10.8)	7.1
Income (loss) before (provision for) benefit from income taxes	10.0	(60.1)	(24.5)	4.3
(Provision for) benefit from income taxes	(4.4)	11.8	0.5	(14.9)
Net income (loss)	5.6	(48.3)	(24.0)	(10.6)
Net (income) loss attributable to the noncontrolling interests	(1.1)	0.1	(1.4)	0.2
Preferred dividends	(10.9)	(10.9)	(21.8)	(21.8)
Net loss attributable to Kennedy-Wilson Holdings, Inc. common shareholders	$ (6.4)	$ (59.1)	$ (47.2)	$ (32.2)
Basic loss (income) per share
Loss (income) per share (in dollars per share)	$ (0.05)	$ (0.43)	$ (0.34)	$ (0.23)
Weighted average shares outstanding (in shares)	138,144,013	137,588,910	137,946,790	138,142,769
Diluted loss (income) per share
Loss (income) per share (in dollars per share)	$ (0.05)	$ (0.43)	$ (0.34)	$ (0.23)
Weighted average shares outstanding (in shares)	138,144,013	137,588,910	137,946,790	138,142,769
Dividends declared per common share (in dollars per share)	$ 0.12	$ 0.12	$ 0.24	$ 0.36
Investment Management Fees, Related Party
Revenue
Total revenue	$ 24.8	$ 16.6	$ 40.6	$ 31.0
Rental
Revenue
Total revenue	93.3	97.8	190.6	195.2
Expenses
Compensation and related, corporate	35.4	37.0	73.5	74.2
Hotel
Revenue
Total revenue	0.0	0.0	0.0	9.3
Expenses
Compensation and related, corporate	0.0	0.0	0.0	7.6
Investment management fees
Revenue
Total revenue	36.4	26.1	61.4	47.4
Loan
Revenue
Total revenue	5.7	8.0	11.5	16.1
Other
Revenue
Total revenue	0.3	0.1	0.5	0.4
Compensation and related
Expenses
Compensation and related, corporate	$ 32.3	$ 31.8	$ 59.2	$ 59.4