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Investment Information - Equity method investments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	$ 2,741,293	$ 2,047,889
Credit related funds
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	952,794	740,060
Equity securities
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	414,322	343,058
Real estate
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	340,510	258,518
Lending
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	330,368	179,629
Private equity
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	365,840	235,289
Infrastructure
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	222,484	175,882
Energy
Schedule of Equity Method Investments [Line Items]
Investments accounted for using the equity method	$ 114,975	$ 115,453

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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No definition available.

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