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v3.19.3.a.u2

Investment Securities (Investments In Private Equity Funds Subject to Lock-Up Periods) (Details) | 12 Months Ended |
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Dec. 31, 2019 USD ($) fund | Dec. 31, 2018 USD ($)
Hedge funds |  |
Investment securities |  |
Number of Investments Held | fund | 1 |
Private equity funds |  |
Investment securities |  |
Trading security, fair value | $ 106,500,000 |
Number of Investments Held | fund | 12 |
Insurance-Linked Securities Funds |  |
Investment securities |  |
Other long-term investments largest single investment | $ 41,200,000 |
Number of Investments Held | 3 |
Cash in transit | $ 4,800,000 |
Unfunded Capital Commitment | 10,000,000.0 |
1 – 3 years | Private equity funds |  |
Investment securities |  |
Trading security, fair value | 4,800,000 |
3 – 5 years | Private equity funds |  |
Investment securities |  |
Trading security, fair value | 51,900,000 |
5 – 10 years | Private equity funds |  |
Investment securities |  |
Trading security, fair value | 40,200,000 |
10 years | Private equity funds |  |
Investment securities |  |
Trading security, fair value | 9,600,000 |
Hedge funds | Hedge funds |  |
Investment securities |  |
Trading security, fair value | 54,600,000 | $ 54,300,000
Elementum Funds | Insurance-Linked Securities Funds |  |
Investment securities |  |
Commitment | $ 50,000,000.0 |
Minimum |  |
Investment securities |  |
Redemptions and Advanced Redemption Notice Period | 30 days |
Maximum |  |
Investment securities |  |
Redemptions and Advanced Redemption Notice Period | 90 days |

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + 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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- Details
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