Defined Benefit Plan, Employee's Compensation Period Used in Benefit Calculation

No definition available.

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- Definition

Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(10)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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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.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920

+ Details

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

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- Details

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- Details

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- Details

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Employee Benefit Plans (Defined Benefit Pension Plan Narrative) (Details) - Pension Plans, Defined Benefit - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Plan curtailment		$ 0.0	$ 0.0
Penreco Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Employee's Compensation Period Used in Benefit Calculation	60 months
Montana Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Employee's Compensation Period Used in Benefit Calculation	36 months
Plan curtailment	$ 0.0
Maximum
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in 2020	0.1
Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Employer Contributions, 2019	$ 0.0