Amount of other income (expenses) recognized in net periodic benefit (cost) credit of defined benefit plan.

No definition available.

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- Definition

Represents defined benefit plan net benefit income.

+ References

No definition available.

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

+ References

+ 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

+ Details

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.

+ References

+ Details

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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

+ References

+ Details

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

+ References

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

+ References

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- References

No definition available.

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- Definition

Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

+ References

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-Publisher FASB
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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.

+ References

+ Details

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Period Type:	duration

- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

+ References

+ Details

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- Definition

Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

+ References

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- Details

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Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Jan. 31, 2017
Pension and Other Postretirement Benefits
Total benefit (income) expense	$ (981)	$ (751)
Settlement loss		1,956
Pension
Pension and Other Postretirement Benefits
Interest cost	1,514	1,781
Expected asset return	(2,590)	(2,656)
Amortization of (gain) loss	95	124
Total benefit (income) expense	(981)	1,205
Other comprehensive gain (loss) due to the results of fair value of plan assets		1,600
Expected company contribution			$ 5,400
Company contribution	1,100
Pension \| Union employees
Pension and Other Postretirement Benefits
Lump-sum benefits to plan participants in full settlement of obligations		$ 10,600
Pension \| Minimum
Pension and Other Postretirement Benefits
Discount rate used to measure the plan obligations (as percent)		3.81%
Pension \| Maximum
Pension and Other Postretirement Benefits
Discount rate used to measure the plan obligations (as percent)		3.82%
Other Postretirement Benefits
Pension and Other Postretirement Benefits
Service cost	179	$ 254
Interest cost	485	596
Amortization of (gain) loss	(214)	(38)
Total benefit (income) expense	450	812
Total other income (expense)	$ 271	558
Discount rate used to measure the plan obligations (as percent)				4.07%
Other comprehensive gain (loss) due to the results of fair value of plan assets		$ 19,700