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Summary of Significant Accounting Policies - Product Warranties Narrative (Details)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Standard Product Warranty Description Warranties generally extend for one to two years from the date of sale. Provisions for warranty are determined primarily based on historical warranty cost as a percentage of sales, adjusted for specific issues that may arise.Product warranty expense is approximately one percent of sales and the product warranty accrual is reflected in accrued expenses in the consolidated balance sheets.