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Related Party Transactions - Narrative (Details)
$ in Millions

6 Months Ended

Jun. 30, 2023

USD ($)

Dec. 31, 2022

USD ($)

Jun. 30, 2022

USD ($)

Related Party Transaction [Line Items]

Plus component of annual investment management fee

0.25

Annual fee cap

0.15

Privately-held Investments

^[1]

$ 482.4

$ 533.0

Other investments, at fair value (2)

^[2]

213.4

221.3

Asset Management Arrangement | Investment Income

Related Party Transaction [Line Items]

Related party fees

(5.2)

$ (0.6)

Management Consulting Agreement | General, administrative and corporate expenses

Related Party Transaction [Line Items]

Related party fees

(2.5)

(2.5)

Apollo originating partnership | Gain (Loss) on Investments

Related Party Transaction [Line Items]

Related party fees

(0.4)

(0.2)

Beneficial owner

Related Party Transaction [Line Items]

Intercompany balance payable

2.2

2.0

Apollo real estate fund | Fair Value, Recurring [Member]

Related Party Transaction [Line Items]

Other investments, at fair value (2)

22.9

25.3

Apollo originating partnership | Fair Value, Recurring [Member]

Related Party Transaction [Line Items]

Privately-held Investments

42.7

44.8

Other investments, at fair value (2)

12.6

12.7

Apollo originating partnership, class A notes | Privately-held investments

Related Party Transaction [Line Items]

Privately-held investment, losses incurred

1.3

0.5

Apollo originating partnership, class A notes | Fair Value, Recurring [Member]

Related Party Transaction [Line Items]

Privately-held Investments

28.6

30.0

Apollo originating partnership, class B notes | Privately-held investments

Related Party Transaction [Line Items]

Privately-held investment, losses incurred

0.7

$ 0.3

Apollo originating partnership, class B notes | Fair Value, Recurring [Member]

Related Party Transaction [Line Items]

Privately-held Investments

$ 14.0

$ 14.8

Maximum

Related Party Transaction [Line Items]

Percentage of consolidated group's net income due to Apollo Management

1.00%

Fees due to Apollo Management

$ 5.0

[1]	Privately-held investments includes related party investments totaling $42.7 million (December 31, 2022 — $44.8 million).
[2]	Other investments includes related party investments of $22.9 million (December 31, 2022 — $25.3 million) in Apollo Real Estate Fund and $12.6 million (December 31, 2022 — $12.7 million) in Apollo Origination Partnership. (3)    Cash and cash equivalents includes restricted cash of $312.1 million (December 31, 2022 — $232.1 million ) which are held in trusts. (4)

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