Employee Retirement Benefits (Narrative) (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Defined Benefit Plan Disclosure [Line Items] | |||||
| Contributions to the plan | $ 450,000 | $ 554,000 | |||
| Pension liability adjustment gains | $ 4,148,000 | (4,147,836) | |||
| Maximum matching percentage by employer | 6.00% | ||||
| Austin Taylor Pension Plan [Member] | |||||
| Defined Benefit Plan Disclosure [Line Items] | |||||
| Contributions to the plan | 68,000 | $ 650,000 | |||
| Pension settlement costs | $ 43,000 | $ 1,222,000 | $ 43,000 | ||
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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 gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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- Definition Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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