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Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined contribution plan, cost recognized | $ 20,900 | $ 10,600 | $ 10,900
Look-back Period Under Employee Stock Purchase Plan | 6 months |  |
Discount On Common Stock Under Employee Stock Purchase Plan, Percent | 10.00% |  |
Issuances of common stock under the employee stock purchase plan (In Shares) | 58,440 |  |
Issuances of common stock under the employee stock purchase plan | $ 1,185 |  |
Shares Available For Purchase Under Employee Stock Purchase Plan | 27,206 |  |
Salary continuation plan minimum period | 10 years |  |
Salary continuation plan maximum period | 20 years |  |
Present value of future salary contribution plan benefits | $ 49,000 | 25,600 |
Postemployment benefits, period expense | 4,800 | 1,500 | $ 2,200
Deferred compensation cash-based arrangements, liability, current and noncurrent | 13,700 | 11,400 |
Cash surrender value of life insurance | 680,900 | 331,800 |
Other postretirement defined benefit plan, liabilities | $ 6,300 | 4,000 |
Employee Stock [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date | 90.00% |  |
Supplemental Employee Retirement Plans, Defined Benefit |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.02% |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Normal Retirement Age | 65 |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Annual Cost Of Living Benefit Adjustment | 2.00% |  |
Defined Benefit Plan, Benefit Obligation | $ 18,800 |  |
Supplemental Employee Retirement Plans, Defined Benefit |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Other deferred compensation arrangements, liability, current and noncurrent | $ 517 | 568 |
Percentage of deferred salary | 50.00% |  |
Deferred compensation liability, current and noncurrent | $ 13,100 | 9,700 |
Pension and other postretirement defined benefit plans, liabilities | $ 16,700 | $ 8,700 |

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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 Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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