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Contingent Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract] |
Reconciliation of Product Liability Reserve | Balance Sheet Roll-forward for Product Liability Reserve
|  |  |  |  |  |  |  | Cash Payments |  |  |  |
|  | Balance Beginning of Year (a) |  |  | Accrued Legal Expense (Income) (b) |  |  | Legal Fees (c) |  |  | Settlements (d) |  |  | Balance End of Year (a) |
2016 |  | $ | 744 |  |  |  | 1,221 |  |  |  | (133 | ) |  |  | (13 | ) |  | $ | 1,819 |
2017 |  | $ | 1,819 |  |  |  | (477 | ) |  |  | (290 | ) |  |  | (233 | ) |  | $ | 819 |
2018 |  | $ | 819 |  |  |  | 731 |  |  |  | (183 | ) |  |  | (195 | ) |  | $ | 1,172 |
Schedule of Product Liability Expense | Income Statement Detail for Product Liability Expense
|  | Accrued Legal Expense (b) |  |  | Insurance Premium Expense (e) |  |  | Total Product Liability Expense |
2016 |  | $ | 1,221 |  |  |  | 834 |  |  | $ | 2,055 |
2017 |  | $ | (477 | ) |  |  | 837 |  |  | $ | 360 |
2018 |  | $ | 731 |  |  |  | 783 |  |  | $ | 1,514 |
Notes
| (a) | The beginning and ending liability balances represent accrued legal fees only. Settlements and administrative costs are expensed as incurred. Only in rare instances is an accrual established for settlements.
| (b) | The expense accrued in the liability is for legal fees only. In 2015 and 2017, the costs incurred related to cases that were settled or dismissed were less than the amounts accrued for these cases in prior years.
(c) | Legal fees represent payments to outside counsel related to product liability matters.
| (d) | Settlements represent payments made to plaintiffs or allegedly injured parties in exchange for a full and complete release of liability.
(e) | Insurance expense represents the cost of insurance premiums.

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- Definition Tabular disclosure of exposure to material amount of loss arising from allegations of damages pertaining to and arising from one or more of the entity's products. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14472-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14453-108349 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14394-108349 + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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