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v3.20.2

Business Realignment and Restructuring (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | $ 1,621 |  | $ 1,628 | $ 312
Additional restructuring costs | 4,950 |  | 4,950 |
Particulate Matter Product Line Strategic Exit [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 2,552 |
Particulate Matter Product Line Strategic Exit [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 2,552 |  | 2,552 |
Particulate Matter Product Line Strategic Exit [Member] | Control Devices [Member] | Minimum [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated total cost | 1,550 |  | 1,550 |
Particulate Matter Product Line Strategic Exit [Member] | Control Devices [Member] | Maximum [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated total cost | 4,650 |  | 4,650 |
Canton Facility Restructuring Plan [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 2,683 | 5,668
Canton Facility Restructuring Plan [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 461 | $ 3,443 | 2,683 | 5,668
Estimated total cost | 600 |  | 600 |
Employee Termination [Member] | Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 863 | (30)
Employee Termination [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 1,119 | 4,603
Other Restructuring [Member] | Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 313 | 120
Other Restructuring [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 70 |
Other Restructuring [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 1,564 | 1,065
Contract Termination [Member] | Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  |  | 452 | 27
Selling, General and Administrative Expenses [Member] | Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 1,244 | 96 | 1,251 | 312
Selling, General and Administrative Expenses [Member] | Particulate Matter Product Line Strategic Exit [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 2,388 |  | 2,388 |
Selling, General and Administrative Expenses [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 235 |  |  |
Selling, General and Administrative Expenses [Member] | Canton Facility Restructuring Plan [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  | 280 | 549 | 475
Cost of Goods Sold [Member] | Particulate Matter Product Line Strategic Exit [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 164 |  | 164 |
Cost of Goods Sold [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 80 |  |  |
Cost of Goods Sold [Member] | Canton Facility Restructuring Plan [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  | 2,354 | 1,570 | 3,606
Design and Development Expense [Member] | Electronics [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | 377 |  | 377 |
Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member] | Canton Facility [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense | $ 146 |  |  |
Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member] | Control Devices [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring expense |  | $ 809 | $ 564 | $ 1,587

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