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Nature of Operations (Narrative) (Details) - PCB [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Cash payment to be received for sale of discontinued operations	$ 32,000
Additional cash payment to be received for sale of discontinued operations	$ 3,000

X

- Definition

Additional cash payment to be received for sale of discontinued operations.

+ References

No definition available.

+ Details

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X

- Definition

Cash payment to be received for sale of discontinued operations.

+ References

No definition available.

+ Details

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X

- 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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X

- Details

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