Acquisition Activity (Narrative) (Details) - USD ($) $ in Thousands			12 Months Ended
	Jun. 01, 2021	Nov. 01, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Net earnings			$ 20,221	$ 10,787	$ 22,188
Amortization expense			3,300	$ 2,400	$ 1,700
DTS Acquisition
Business Acquisition [Line Items]
Purchase price	$ 47,216
Net revenues			19,200
Net earnings			1,200
Amortization of inventory step-up costs			2,700
Amortization expense			$ 800
DTS Acquisition | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life (in years)	15 years
DTS Acquisition | Technology-Based Intangible Assets
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life (in years)	15 years
DSI Acquisition
Business Acquisition [Line Items]
Purchase price		$ 40,325
DSI Acquisition | Patents and Acquired Technology
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life (in years)		16 years
DSI Acquisition | Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible assets, useful life (in years)		15 years