Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Acquisition - Intangible Assets Acquired (Details) - USD ($) $ in Thousands	Jul. 30, 2020	Oct. 09, 2019	Oct. 19, 2020
High Precision Devices, Inc.
Business Acquisition [Line Items]
Intangible assets		$ 11,520	$ 11,520
Weighted Average Useful Life (in years)		8 years 2 months 12 days
Baldwin Park
Business Acquisition [Line Items]
Intangible assets	$ 13,600
Weighted Average Useful Life (in years)	7 years 8 months 12 days
Baldwin Park \| In-process research and development
Business Acquisition [Line Items]
Intangible assets	$ 400
FRT
Business Acquisition [Line Items]
Intangible assets		$ 17,429
Weighted Average Useful Life (in years)		6 years 10 months 24 days
Developed technologies \| High Precision Devices, Inc.
Business Acquisition [Line Items]
Intangible assets		$ 7,500
Weighted Average Useful Life (in years)		10 years
Developed technologies \| Baldwin Park
Business Acquisition [Line Items]
Intangible assets	$ 8,800
Weighted Average Useful Life (in years)	10 years
Developed technologies \| FRT
Business Acquisition [Line Items]
Intangible assets		$ 12,505
Weighted Average Useful Life (in years)		8 years
Customer relationships \| High Precision Devices, Inc.
Business Acquisition [Line Items]
Intangible assets		$ 3,600
Weighted Average Useful Life (in years)		5 years
Customer relationships \| Baldwin Park
Business Acquisition [Line Items]
Intangible assets	$ 4,400
Weighted Average Useful Life (in years)	3 years
Customer relationships \| FRT
Business Acquisition [Line Items]
Intangible assets		$ 3,071
Weighted Average Useful Life (in years)		6 years
Order backlog \| High Precision Devices, Inc.
Business Acquisition [Line Items]
Intangible assets		$ 200
Weighted Average Useful Life (in years)		6 months
Order backlog \| FRT
Business Acquisition [Line Items]
Intangible assets		$ 1,645
Weighted Average Useful Life (in years)		6 months
Trade name \| High Precision Devices, Inc.
Business Acquisition [Line Items]
Intangible assets		$ 220
Weighted Average Useful Life (in years)		5 years
Trade name \| FRT
Business Acquisition [Line Items]
Intangible assets		$ 208
Weighted Average Useful Life (in years)		2 years