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Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2023
Compensation And Retirement Disclosure [Abstract] |
Employee Benefit Plans | Note 11 – Employee Benefit Plans Net periodic benefit costs related to the Company’s unfunded supplemental benefit pension plans are summarized as follows:
|  | Three Months Ended March 31, |
(in millions) |  | 2023 |  |  | 2022 |
Expense: |  |  |  |  |  |
Interest costs |  | $ | 2.5 |  |  | $ | 1.5 |
Amortization of net actuarial loss |  |  | 0.5 |  |  |  | 1.5 |
Amortization of prior service cost |  |  | — |  |  |  | 0.1 |
|  | $ | 3.0 |  |  | $ | 3.1 |
The Company contributed $3.7 million to its unfunded supplemental benefit pension plans during the three months ended March 31, 2023 and expects to contribute an additional $12.0 million during the remainder of 2023.

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- Definition The entire disclosure of an entity's employee compensation and benefit plans, excluding share-based compensation and including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, life insurance, severance, health care, unemployment and other benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 712 -URI https://asc.fasb.org/topic&trid=2197446 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI https://asc.fasb.org/topic&trid=2235017 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -URI https://asc.fasb.org/topic&trid=2127225 + Details
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