Percentage of defined benefit plan assets transferred out of the plan.

No definition available.

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- Definition

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

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- Definition

Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

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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.

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- Definition

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

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- Definition

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

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- References

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.

+ References

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- Definition

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

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- References

No definition available.

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- Definition

Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.

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Retirement and Benefit Plans (Details) - USD ($) $ in Thousands				3 Months Ended			9 Months Ended
	Sep. 30, 2019	Aug. 10, 2018	Apr. 25, 2018	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net periodic benefit cost [Abstract]
Net periodic benefit expense							$ 2,687	$ 25,000
Pension contributions [Abstract]
Pension contributions					$ 20,000		1,324	21,566
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Group annuity transactions	$ (19,800)	$ (124,800)	$ (151,800)
Percentage of defined benefit plan assets transferred out of the plan	10.00%
Net periodic benefit cost [Abstract]
Service cost				$ 163	196		485	598
Interest cost				1,792	2,278		5,417	9,602
Expected return on plan assets				(1,477)	(1,903)		(4,426)	(9,783)
Amortization of actuarial (gain) loss				(44)	151		(131)	1,328
Plan settlement loss				1,342	11,252	$ 12,000	1,342	23,255
Net periodic benefit expense				1,776	$ 11,974		2,687	$ 25,000
Pension contributions [Abstract]
Pension contributions							1,300
Estimated remaining 2019 pension contributions	$ 4,000			$ 4,000			$ 4,000