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Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2021
Accounting Policies [Abstract]  
Property, Plant and Equipment
Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over estimated useful lives generally as follows:
Buildings and improvements
10-40 years
Machinery and equipment
5-10 years
Furniture, computers and equipment
3-5 years
Internal-use software
3-5 years
Production molds
2-5 years