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Cash Surrender Value of Life Insurance Policies, Net - Other Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Information about cash surrender value of life insurance policies |  |  |
Cash surrender value of all life insurance policies, net of loans and related accrued interest | $ 43.8 | $ 42.0 |
Borrowed portion |  |  |
Information about cash surrender value of life insurance policies |  |  |
Amount of borrowed funds against cash surrender value of certain life insurance policies used to pay premiums and accrued interest owed | 75.6 | 73.1 | $ 68.0
Paid premiums and accrued interest on loans against policies | $ 96.5 | 93.0 | $ 86.3
Earle M. Jorgensen Company ("EMJ") | Borrowed portion |  |  |
Information about cash surrender value of life insurance policies |  |  |
Interest on borrowings against cash surrender value of certain life insurance policies (as a percent) | 11.76% |  |
Rate at which the portion of the policy cash surrender value earns interest and dividend income (as a percent) | 11.26% |  |
Loans and accrued interest outstanding on EMJ's life insurance policies | $ 897.9 | $ 849.5 |
Earle M. Jorgensen Company ("EMJ") | Unborrowed portion | Minimum |  |  |
Information about cash surrender value of life insurance policies |  |  |
Rate at which the portion of the policy cash surrender value earns interest and dividend income (as a percent) | 4.00% |  |

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- Definition Represents the gross amount of loans borrowed by the entity against cash surrender value of certain life insurance policies to pay premiums and accrued interest owed. + References No definition available. + Details
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- Definition Represents the fixed interest rate on borrowings against the cash surrender value of certain life insurance policies. + References No definition available. + Details
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- Definition Represents the amount of loans and accrued interest outstanding on life insurance policies. + References No definition available. + Details
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- Definition Represents the premiums and accrued interest on loans outstanding against life insurance policies. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Rate of interest credited to policyholder deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
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