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v3.21.1

Business Realignment and Restructuring (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | $ 1,369 |
Cash payments | (1,184) |
Utilization, Non-Cash | (185) |
Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring Reserve, Beginning Balance | 165 | $ 2,636
Charge to expense | 13 | 2,222
Cash payments | (38) | (4,541)
Restructuring Reserve, Ending Balance | 140 | 317
Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 1,369 |
Control Devices [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 13 | 2,222
Control Devices [Member] | Cost of Goods Sold [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 650 |
Control Devices [Member] | Cost of Goods Sold [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense |  | 1,490
Control Devices [Member] | Selling, General and Administrative Expenses [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 638 |
Control Devices [Member] | Selling, General and Administrative Expenses [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense |  | 314
Control Devices [Member] | Design and Development Expense [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 81 |
Control Devices [Member] | Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense |  | 418
Electronics [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring Reserve, Beginning Balance | 227 | 52
Charge to expense | 199 | 7
Cash payments | (194) | (7)
Restructuring Reserve, Ending Balance | 232 | 52
Electronics [Member] | Cost of Goods Sold [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | (2) |
Electronics [Member] | Selling, General and Administrative Expenses [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 155 |
Electronics [Member] | Design and Development Expense [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 46 |
Employee Termination [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 76 |
Cash payments | (76) |
Employee Termination [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring Reserve, Beginning Balance | 165 | 2,636
Charge to expense |  | 1,118
Cash payments | (25) | (3,437)
Restructuring Reserve, Ending Balance | 140 | 317
Employee Termination [Member] | Electronics [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring Reserve, Beginning Balance | 227 | 52
Charge to expense | 53 |
Cash payments | (48) |
Restructuring Reserve, Ending Balance | 232 | 52
Non-Cash Fixed Asset Charges [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 185 |
Utilization, Non-Cash | (185) |
Other Restructuring [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 1,108 |
Cash payments | (1,108) |
Other Restructuring [Member] | Canton Facility Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 13 | 1,104
Cash payments | (13) | (1,104)
Other Restructuring [Member] | Electronics [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Charge to expense | 146 | 7
Cash payments | $ (146) | $ (7)

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