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Fair Value of Financial Instruments - Assets Measured at Fair Value by Hierarchy Level (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | $ 137,282 | $ 103,996
Other invested assets—at fair value | 5,079 | 4,165
Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 5,590,802 | 6,512,377
Derivative assets | 707 | 4,200
Total assets at fair value | 5,728,791 | 6,620,573
Derivative liabilities | 4,634 |
Total liabilities at fair value | 4,634 |
Level I | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 519,655 | 738,480
Derivative assets | 0 | 0
Total assets at fair value | 580,021 | 776,482
Derivative liabilities | 0 |
Total liabilities at fair value | 0 |
Level II | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 5,064,647 | 5,770,897
Derivative assets | 56 | 0
Total assets at fair value | 5,141,619 | 5,836,891
Derivative liabilities | 33 |
Total liabilities at fair value | 33 |
Level III | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 6,500 | 3,000
Derivative assets | 651 | 4,200
Total assets at fair value | 7,151 | 7,200
Derivative liabilities | 4,601 |
Total liabilities at fair value | 4,601 |
Loaned securities, fair value |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 76,174 |
Loaned securities, fair value | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 40,377 | 65,994
Loaned securities, fair value | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 9,651 |
Loaned securities, fair value | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 7,117 |
Loaned securities, fair value | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 2,876 |
Loaned securities, fair value | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 16,895 |
Loaned securities, fair value | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 60,366 | 38,002
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 | 0
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level I | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 60,366 | 38,002
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 40,377 | 65,994
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 9,651 |
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 7,117 |
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 2,876 |
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 16,895 |
Loaned securities, fair value | Level II | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 | 0
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 | 0
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 |
Loaned securities, fair value | Level III | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Loaned securities and securities sold under repurchase agreements (Note 5) | 0 | 0
Fixed-maturities available for sale | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,909,232 | 5,517,078
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 146,664 | 221,730
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 142,743 | 177,257
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 2,429,325 | 2,910,231
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 900,591 | 705,117
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 599,478 | 709,203
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 490,832 | 530,040
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 168,087 | 211,187
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | Foreign government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,970 | 5,296
Fixed-maturities available for sale | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 26,542 | 47,017
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 142,882 | 192,452
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 142,882 | 192,452
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | Foreign government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level I | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,766,350 | 5,324,626
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 3,782 | 29,278
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 142,743 | 177,257
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 2,429,325 | 2,910,231
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 900,591 | 705,117
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 599,478 | 709,203
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 490,832 | 530,040
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 168,087 | 211,187
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | Foreign government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,970 | 5,296
Fixed-maturities available for sale | Level II | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 26,542 | 47,017
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | CLO |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | Other ABS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | Foreign government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Fixed-maturities available for sale | Level III | Fair Value, Measurements, Recurring | Mortgage insurance-linked notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 139,901 | 256,546
Trading securities | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 70,475 | 94,637
Trading securities | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 47,802 | 119,186
Trading securities | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 7,058 | 9,438
Trading securities | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 14,566 | 33,285
Trading securities | Level I | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level I | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level I | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level I | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level I | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level II | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 139,901 | 256,546
Trading securities | Level II | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 70,475 | 94,637
Trading securities | Level II | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 47,802 | 119,186
Trading securities | Level II | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 7,058 | 9,438
Trading securities | Level II | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 14,566 | 33,285
Trading securities | Level III | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level III | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level III | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level III | Fair Value, Measurements, Recurring | RMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Trading securities | Level III | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Equity securities | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 145,155 | 184,245
Equity securities | Level I | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 134,907 | 176,828
Equity securities | Level II | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 7,748 | 7,417
Equity securities | Level III | Fair Value, Measurements, Recurring | Equity securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 2,500 | 0
Short-term investments | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 392,514 | 551,508
Short-term investments | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 94,665
Short-term investments | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 2,885 | 12,270
Short-term investments | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 53,406 | 65,191
Short-term investments | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 3,023
Short-term investments | Fair Value, Measurements, Recurring | Money market instruments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 241,866 | 274,535
Short-term investments | Fair Value, Measurements, Recurring | Other investments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 94,357 | 101,824
Short-term investments | Level I | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 241,866 | 369,200
Short-term investments | Level I | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 94,665
Short-term investments | Level I | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level I | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level I | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 0
Short-term investments | Level I | Fair Value, Measurements, Recurring | Money market instruments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 241,866 | 274,535
Short-term investments | Level I | Fair Value, Measurements, Recurring | Other investments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level II | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 150,648 | 182,308
Short-term investments | Level II | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 0
Short-term investments | Level II | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 2,885 | 12,270
Short-term investments | Level II | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 53,406 | 65,191
Short-term investments | Level II | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 3,023
Short-term investments | Level II | Fair Value, Measurements, Recurring | Money market instruments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level II | Fair Value, Measurements, Recurring | Other investments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 94,357 | 101,824
Short-term investments | Level III | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | U.S. government and agency securities |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | State and municipal obligations |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | Corporate bonds and notes |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | CMBS |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value |  | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | Money market instruments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Short-term investments | Level III | Fair Value, Measurements, Recurring | Other investments |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Other investments | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,000 | 3,000
Other investments | Level I | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Other investments | Level II | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 0 | 0
Other investments | Level III | Fair Value, Measurements, Recurring |  |
Fair Value by Hierarchy Level [Line Items] |  |
Total investments at fair value | 4,000 | 3,000
Partnership investments | Investments measured at NAV |  |
Fair Value by Hierarchy Level [Line Items] |  |
Other invested assets—at fair value | $ 1,100 | $ 1,200

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as an asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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