Defined benefit plan actual percentage return on plan assets

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- Definition

Defined Benefit Plan Health Care Cost Rate Change - Actual Value From Previous Time Period

+ References

No definition available.

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- Definition

Defined Benefit Plan, Health Care Cost Trend, Reduction in Trend Rate Maximum

+ References

No definition available.

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- Definition

Defined Benefit Plan, Health Care Cost Trend, Reduction in Trend Rate

+ References

No definition available.

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- References

No definition available.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

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

+ References

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- Definition

Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

+ References

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- Definition

Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

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- Definition

Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

+ References

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

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- Definition

Amount of cost for defined contribution plan.

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Retirement Plans (Details) - USD ($)	12 Months Ended
Retirement Plans (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Retirements Plans [Line Items]
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ 260,000
Expected long-term rate of return on plan assets	5.93%	6.50%
Actual return on plan assets percentage	(3.69%)	14.60%
Total expense related to 401(k)	$ 16,000,000	$ 14,000,000	$ 14,000,000
Pre-65 Health Care Trend Rate [Member]
Retirements Plans [Line Items]
Health care trend rate assumption	7.00%
Defined Benefit Plan, Health Care Cost Trend, Reduction in Trend Rate Minimum	0.25%
Defined Benefit Plan, Health Care Cost Trend, Reduction in Trend Rate Maximum	0.50%
Ultimate future rate	5.00%
Post-65 Health Care Trend [Member]
Retirements Plans [Line Items]
Health care trend rate assumption	6.00%
Defined Benefit Plan, Health Care Cost Trend, Reduction in Trend Rate Minimum	0.25%
Ultimate future rate	5.00%
Defined Benefit Plan Health Care Cost Rate Change	(5.10%)
Retirement Account Plan
Retirements Plans [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	$ 75,000
Expected long-term rate of return on plan assets	5.93%	6.50%
Employer contributions		$ 6,242,000
Retirement Account Plan Prior to Merger [Member]
Retirements Plans [Line Items]
Expected long-term rate of return on plan assets	6.00%
Employer contributions	$ 4,340,000
Postretirement Plan
Retirements Plans [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	75,000
Employer contributions	$ 292,000	$ 235,000
Other Pension Plan [Member]
Retirements Plans [Line Items]
Expected long-term rate of return on plan assets	5.50%
Employer contributions	$ 37,537,000
Minimum [Member] \| Equity Securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	50.00%
Minimum [Member] \| Fixed income securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	30.00%
Minimum [Member] \| Alternative Securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Minimum [Member] \| Cash and Cash Equivalents
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Maximum [Member] \| Equity Securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	70.00%
Maximum [Member] \| Fixed income securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	50.00%
Maximum [Member] \| Alternative Securities
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	15.00%
Maximum [Member] \| Cash and Cash Equivalents
Retirements Plans [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	10.00%