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v3.21.2

Business Realignment and Restructuring (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Jun. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2020
Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  |  |  | $ 0
Charge to expense |  |  |  | $ 2,329 | 2,894
Cash payments |  |  |  | (2,141) | (70)
Utilization, Non-Cash |  |  |  | (188) | (2,824)
Restructuring Reserve, Ending Balance |  | $ 0 |  |  | 0
Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance | $ 140 |  | $ 165 | 165 | 2,636
Charge to expense |  |  | 13 | 13 | 2,881
Cash payments |  |  | (38) |  | (5,308)
Restructuring Reserve, Ending Balance |  | 209 | 140 |  | 209
Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 675 | 342 |  | 2,329 | 2,894
Control Devices [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 0 | 197 |  |  |
Control Devices [Member] | Cost of Goods Sold [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 605 | 340 |  | 1,505 | 503
Control Devices [Member] | Cost of Goods Sold [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  | 88 |  |  | 1,659
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 | (31) | 2 |  | 642 | 2,391
Control Devices [Member] | Selling, General and Administrative Expenses [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  |  |  |  | 549
Control Devices [Member] | Design and Development Expense [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 101 |  |  | 182 |
Control Devices [Member] | Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  | 109 |  | 13 | 673
Electronics [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  | 227 | 227 | 52
Charge to expense | 36 | 567 |  | 256 | 2,195
Cash payments |  |  |  | (418) | (1,977)
Restructuring Reserve, Ending Balance | 65 | 270 |  | 65 | 270
Electronics [Member] | Cost of Goods Sold [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 34 | 132 |  | 37 | 132
Electronics [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense | 2 | 383 |  | 176 | 1,634
Electronics [Member] | Design and Development Expense [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  | 52 |  | 43 | 429
Employee Termination [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  |  |  | 139 |
Cash payments |  |  |  | (139) |
Employee Termination [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance | 140 |  | 165 | 165 | 2,636
Charge to expense |  |  |  |  | 1,119
Cash payments |  |  | (25) |  | (3,546)
Restructuring Reserve, Ending Balance |  | 209 | 140 |  | 209
Employee Termination [Member] | Electronics [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  | 227 | 227 | 52
Charge to expense |  |  |  | 50 | 961
Cash payments |  |  |  | (212) | (743)
Restructuring Reserve, Ending Balance | $ 65 | 270 |  | 65 | 270
Non-Cash Fixed Asset Charges [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  |  |  | 188 |
Utilization, Non-Cash |  |  |  | (188) |
Fixed Asset Impairment [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  |  |  | 0
Charge to expense |  |  |  |  | 2,824
Utilization, Non-Cash |  |  |  |  | (2,824)
Restructuring Reserve, Ending Balance |  | 0 |  |  | 0
Contract Termination [Member] | Electronics [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  |  |  | 0
Charge to expense |  |  |  |  | 452
Cash payments |  |  |  |  | (452)
Utilization, Non-Cash |  |  |  |  | 0
Restructuring Reserve, Ending Balance |  | 0 |  |  | 0
Other Restructuring [Member] | Particulate Matter Product Line Strategic Exit [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Beginning Balance |  |  |  |  | 0
Charge to expense |  |  |  | 2,002 | 70
Cash payments |  |  |  | (2,002) | (70)
Restructuring Reserve, Ending Balance |  | $ 0 |  |  | 0
Other Restructuring [Member] | Canton Facility Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  |  | 13 |  | 1,762
Cash payments |  |  | $ (13) |  | (1,762)
Other Restructuring [Member] | Electronics [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Charge to expense |  |  |  | 206 | 782
Cash payments |  |  |  | $ (206) | $ (782)

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