Represents defined benefit plan net benefit income.

No definition available.

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- Definition

The amount of gains or losses recognized in net periodic benefit cost.

+ References

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- Definition

The interest rate used to adjust for the time value of money for the plan.

+ References

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- Definition

The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6521376

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- Definition

Amount of contributions made by the employer to defined benefit plans.

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512171

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References

+ Details

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

+ References

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- References

No definition available.

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- Definition

Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

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- Definition

Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity.

+ References

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Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Jan. 31, 2017
Pension and Other Postretirement Benefits
Total benefit (income) expense	$ (751)	$ (553)
Settlement loss	1,956
Pension
Pension and Other Postretirement Benefits
Interest cost	1,781	1,996
Expected asset return	(2,656)	(2,678)
Amortization of loss	124	129
Total benefit (income) expense	1,205	(553)
Other comprehensive gain due to the results of fair value of plan assets	1,600
Expected company contribution			$ 4,800
Company contribution	0
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	$ 254	259
Interest cost	596	655
Amortization of loss	(38)	119
Total benefit (income) expense	812	$ 1,033
Discount rate used to measure the plan obligations (as percent)				4.07%
Other comprehensive gain due to the results of fair value of plan assets	$ 19,700