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Business Realignment and Restructuring (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 216
Additional restructuring costs	860
Control Devices [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	2,225
Canton Facility Restructuring Plan [Member] | Control Devices [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Estimated total cost	6,300
Canton Facility Restructuring Plan [Member] | Control Devices [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Estimated total cost	7,300
Canton Facility Restructuring [Member] | Canton Facility Restructuring Plan [Member] | Control Devices [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	2,225
Selling, General and Administrative Expenses [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	195
Cost of Goods Sold [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,252
Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 778

X

- Definition

Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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Amount of expected cost remaining for the specified restructuring cost.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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