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v3.20.4

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of depreciation recorded over the estimated useful lives | Depreciation is recorded on a straight-line basis over the estimated useful lives of the respective assets as follows:
Category |  | Lives
Buildings and improvements |  | 10 — 40 years
Plant, machinery and equipment |  | 5 — 25 years
Other equipment |  | 3 — 10 years

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