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PENSION PLANS (Asset Allocations) (Details) - Pension Plan - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS
Asset allocations by asset category	100.00%	100.00%
Equity securities
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS
Asset allocations by asset category	39.10%	48.40%
Equity securities included the entity's common stock	$ 0.1	$ 0.1
Debt Securities
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS
Asset allocations by asset category	57.50%	46.90%
Other
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS
Asset allocations by asset category	3.40%	4.70%

X

- Definition

Amount of employer security in which defined benefit plan asset is invested. Includes, but is not limited to, security issued or managed by related party of employer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (n)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

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+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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