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Operations and Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of property plant and equipment useful life | Property, plant and equipment are stated at cost and depreciated using the straight-line method over the following estimated useful lives:
| Building and improvements | 12 to 40 years
| Leasehold improvements | Shorter of life of asset or life of lease
| Machinery and equipment | 2 to 15 years
Schedule of calculation of basic and diluted earnings per share | The following table sets forth the computation of basic and diluted earnings per share at December 31, 2020, 2019 and 2018, respectively:
| 2020 |  | 2019 |  | 2018
Net income | $ | 9,517 |  |  | $ | 28,620 |  |  | $ | 40,854 |
Basic-weighted average shares outstanding | 28,581 |  |  | 28,325 |  |  | 28,118 |
Effect of dilutive potential securities | 883 |  |  | 1,170 |  |  | 772 |
Diluted-weighted average shares outstanding | 29,464 |  |  | 29,495 |  |  | 28,890 |
Net income (per share) |  |  |  |  |
Basic | $ | 0.33 |  |  | $ | 1.01 |  |  | $ | 1.45 |
Diluted | 0.32 |  |  | 0.97 |  |  | 1.41 |
Schedule of accumulated other comprehensive loss | Accumulated other comprehensive loss consists of the following:
| Cash Flow Hedging Gain (Loss) |  | Pension Liability |  | Foreign Currency Translation Adjustments |  | Accumulated Other Comprehensive Loss |
Balance, December 31, 2017 | $ | (3,530) |  |  | $ | (25,813) |  |  | $ | (19,735) |  |  | $ | (49,078) |  |
Other comprehensive income (loss) before reclassifications, net of tax | 7,639 |  |  | (2,711) |  |  | (8,369) |  |  | (3,441) |  |
Amounts reclassified from accumulated other comprehensive income before tax(a) | 913 |  |  | 2,689 |  |  | — |  |  | 3,602 |  |
Income tax | (221) |  |  | (650) |  |  | — |  |  | (871) |  |
Net current-period other comprehensive income (loss) | 8,331 |  |  | (672) |  |  | (8,369) |  |  | (710) |  |
Cumulative effect of change in accounting principle(b) | (716) |  |  | (5,233) |  |  | — |  |  | (5,949) |  |
Balance, December 31, 2018 | $ | 4,085 |  |  | $ | (31,718) |  |  | $ | (28,104) |  |  | $ | (55,737) |  |
Other comprehensive income (loss) before reclassifications, net of tax | 2,936 |  |  | (2,158) |  |  | 25 |  |  | 803 |  |
Amounts reclassified from accumulated other comprehensive income (loss) before tax(a) | (8,607) |  |  | 2,881 |  |  | — |  |  | (5,726) |  |
Income tax | 2,079 |  |  | (696) |  |  | — |  |  | 1,383 |  |
Net current-period other comprehensive income (loss) | (3,592) |  |  | 27 |  |  | 25 |  |  | (3,540) |  |
Balance, December 31, 2019 | $ | 493 |  |  | $ | (31,691) |  |  | $ | (28,079) |  |  | $ | (59,277) |  |
Other comprehensive income (loss) before reclassifications, net of tax | (5,393) |  |  | (7,068) |  |  | 6,963 |  |  | (5,498) |  |
Amounts reclassified from accumulated other comprehensive income (loss) before tax(a) | (1,378) |  |  | 2,821 |  |  | — |  |  | 1,443 |  |
Income tax | 333 |  |  | (682) |  |  | — |  |  | (349) |  |
Net current-period other comprehensive income (loss) | (6,438) |  |  | (4,929) |  |  | 6,963 |  |  | (4,404) |  |
Balance, December 31, 2020 | $ | (5,945) |  |  | $ | (36,620) |  |  | $ | (21,116) |  |  | $ | (63,681) |  |
(a) The cash flow hedging gain (loss) and pension liability accumulated other comprehensive income components are included in sales or cost of sales and as a component of net periodic pension cost, respectively. Refer to Note 16 and Note 12, respectively, for further details. (b) We recorded the cumulative impact of adopting ASU 2018-02 in 2018, which allows for the elimination of the stranded tax effects of Tax Reform through a reclassification between accumulated other comprehensive income (loss) and retained earnings.

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