Assumed Health Care Plan Post-Age

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- Definition

Assumed Health Care Plan Pre-Age

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- Definition

Number Of Employees Participating In Voluntary Early Retirement And Separation Programs

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- Definition

Unfunded Liability, Defined Benefit Plan, Interest Rate

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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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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- Definition

Amount of cost of providing special or contractual termination benefits payable from defined benefit plan.

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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.

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No definition available.

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- Definition

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

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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.

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Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement.

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- Definition

Amount of cost for defined contribution plan.

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Amount of labor-related expenses classified as other.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Employee Benefit Plans - Narrative (Details) employee in Thousands, $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) employee	Dec. 31, 2020 USD ($) employee	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Defined Benefit Plan Disclosure
Discount rate for 17-year amortization period of unfunded liability for frozen defined benefit plan (percent)		8.85%
Estimated funding by employer in next fiscal year		$ 500
Defined contribution plan costs		$ 805	$ 1,000	$ 925
Assumed healthcare plan pre age		65 years
Assumed healthcare plan post age		65 years
Weighted average expected long-term rate of return on plan assets (percent)		8.97%	8.97%	8.97%
Restructuring charges		$ 8,219	$ 0	$ 0
Profit sharing		$ 0	1,643	1,301
Voluntary early retirement and separation programs
Defined Benefit Plan Disclosure
Number of employees participating \| employee	18	18
Restructuring charges	$ 3,400
Voluntary early retirement and separation programs \| Special termination benefits
Defined Benefit Plan Disclosure
Special termination benefit charge	1,300
Voluntary early retirement and separation programs \| Separation payments and healthcare benefits
Defined Benefit Plan Disclosure
Cash payments disbursed to participants		$ 720
Voluntary early retirement and separation programs \| Unpaid vacation and other benefits
Defined Benefit Plan Disclosure
Cash payments disbursed to participants		250
Other Postretirement and Postemployment Benefits
Defined Benefit Plan Disclosure
Special termination benefit charge	1,300	1,260	0	$ 0
Special termination benefits	$ 1,300	$ 1,260	$ 0
Growth-seeking assets \| Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		30.00%
Growth-seeking assets \| Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		50.00%
Income-generating assets \| Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		25.00%
Income-generating assets \| Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		35.00%
Risk-diversifying assets \| Minimum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		30.00%
Risk-diversifying assets \| Maximum
Defined Benefit Plan Disclosure
Plan assets, target allocations (percent)		40.00%