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The Company and Summary of Significant Accounting Policies - The Company (Details)	12 Months Ended
	Dec. 31, 2021 item segment
The Company and Summary of Significant Accounting Policies
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The Company and Summary of Significant Accounting Policies
Temperature in C	500
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The Company and Summary of Significant Accounting Policies
Temperature in C	1,500
Sales Revenue, Net [Member] | Customer concentration | Specialty Material Substrates
The Company and Summary of Significant Accounting Policies
Revenue by product line (as a percent)	75.00%
Sales Revenue, Net [Member] | Customer concentration | Raw Materials
The Company and Summary of Significant Accounting Policies
Revenue by product line (as a percent)	25.00%

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