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Supplemental Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Supplemental Income Statement Elements [Abstract] |
Restructuring and impairment charges | The components of “Restructuring and impairment charges” line item in the condensed consolidated statements of operations, were as follows:
| Years Ended December 31,
(Dollars in thousands) | 2020 |  | 2019 |  | 2018
Restructuring charges |  |  |  |  |
Manufacturing footprint optimization | $ | 12,348 |  |  | $ | — |  |  | $ | — |
Facility consolidation | — |  |  | 948 |  |  | 1,982 |
Global headquarters relocation | — |  |  | — |  |  | 550 |
Restructuring charges | 12,348 |  |  | 948 |  |  | 2,532 |
Impairment charges |  |  |  |  |
Fixed assets impairment charges | 587 |  |  | 1,537 |  |  | 1,506 |
Other impairment charges | 52 |  |  | — |  |  | — |
Impairment charges | 639 |  |  | 1,537 |  |  | 1,506 |
Total restructuring and impairment charges | $ | 12,987 |  |  | $ | 2,485 |  |  | $ | 4,038 |
The following table summarizes the allocation of restructuring and impairment charges to our operating segments:
| Years Ended December 31,
(Dollars in thousands) | 2020 |  | 2019 |  | 2018
Advanced Connectivity Solutions |  |  |  |  |
Allocated restructuring charges | $ | 4,288 |  |  | $ | — |  |  | $ | 244 |
Allocated impairment charges | 335 |  |  | 1,537 |  |  | 1,506 |
Elastomeric Material Solutions |  |  |  |  |
Allocated restructuring charges | 401 |  |  | 948 |  |  | 2,152 |
Allocated impairment charges | 52 |  |  | — |  |  | — |
Power Electronics Solutions |  |  |  |  |
Allocated restructuring charges | 7,659 |  |  | — |  |  | 136 |
Allocated impairment charges | 252 |  |  | — |  |  | — |
Total restructuring and impairment charges | $ | 12,987 |  |  | $ | 2,485 |  |  | $ | 4,038 |
Severance and related benefits activity | Severance and related benefits activity related to the manufacturing footprint optimization plan is presented in the table below for the year ended December 31, 2020:
(Dollars in thousands) | Manufacturing Footprint Optimization Restructuring Severance and Related Benefits
Balance as of December 31, 2019 | $ | — |
Provisions | 11,451 |
Payments | (819) |
Foreign currency translation adjustment | 371 |
Balance as of December 31, 2020 | $ | 11,003 |
Restructuring Charges - Facility Consolidation & Global Headquarters Relocation
Components of other operating (income) expense, net | The components of “Other operating (income) expense, net” were as follows:
| Years Ended December 31,
(Dollars in thousands) | 2020 |  | 2019 |  | 2018
Lease income | $ | — |  |  | $ | (989) |  |  | $ | (948) |
Depreciation on leased assets | — |  |  | 1,907 |  |  | 3,512 |
Loss (gain) on sale or disposal of property, plant and equipment | 41 |  |  | 756 |  |  | (164) |
Gain from antitrust litigation settlement | — |  |  | — |  |  | (4,231) |
Indemnity claim settlements from acquisitions | — |  |  | (715) |  |  | (700) |
Economic incentive grants | (145) |  |  | — |  |  | (556) |
Total other operating (income) expense, net | $ | (104) |  |  | $ | 959 |  |  | $ | (3,087) |
Components of interest expense, net | The components of “Interest expense, net” were as follows:
| Years Ended December 31,
(Dollars in thousands) | 2020 |  | 2019 |  | 2018
Interest on revolving credit facility | $ | 3,294 |  |  | $ | 7,378 |  |  | $ | 6,304 |
Interest rate swap settlements | 3,191 |  |  | (200) |  |  | (247) |
Line of credit fees | 715 |  |  | 576 |  |  | 573 |
Debt issuance amortization costs | 593 |  |  | 552 |  |  | 552 |
Interest on finance leases | 134 |  |  | 127 |  |  | 172 |
Interest income | (939) |  |  | (1,610) |  |  | (804) |
Other | 147 |  |  | 46 |  |  | 79 |
Total interest expense, net | $ | 7,135 |  |  | $ | 6,869 |  |  | $ | 6,629 |

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