Benefit Plans and Collective Bargaining Agreements - Non-Union Employees Narrative (Details) - 401(k) Employee Stock Ownership Plan - USD ($) |
12 Months Ended | ||
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Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Defined Contribution Plan Disclosure [Line Items] | |||
| Employee maximum contribution percentage | 100.00% | ||
| Employee maximum contribution amount | $ 19,000 | ||
| Minimum age to qualify under Economic Growth and Tax Relief Reconciliation Act | 50 years | ||
| Employee additional contribution eligible under economic growth and tax relief reconciliation act | $ 6,000 | ||
| Employee maximum contribution eligible under economic growth and tax relief reconciliation act | $ 25,000 | ||
| Employer maximum contribution percentage match | 100.00% | ||
| Matching percentage by employer of employees' gross pay | 4.00% | ||
| Matching contributions made by employer | $ 800,000 | $ 700,000 | $ 600,000 |
| Employer discretionary contribution | $ 0 | $ 0 | $ 0 |
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- Definition Defined Contribution Plan, Additional Annual Contribution Per Employee, Amount Under Economic Growth and Tax Relief Reconciliation Act No definition available.
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- Definition Defined Contribution Plan, Additional Annual Contribution Per Employee, Minimum Age Under Economic Growth and Tax Relief Reconciliation Act No definition available.
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- Definition Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount Under Economic Growth and Tax Relief Reconciliation Act No definition available.
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- Definition Amount of cost for defined contribution plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
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- Definition Maximum amount the employee may contribute to a defined contribution plan. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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- Details
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