Business Combinations - Recognized Identifiable Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 17, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill	$ 0	$ 0	$ 27,816		$ 7,576
Goodwill impairment	(27,074)		$ 0
First Source Electronics, LLC
Business Acquisition [Line Items]
Net working capital	2,856	2,856		$ 2,856
Property, plant and equipment	503	503		503
Other long-term assets	1,650	1,650		1,650
Definite-lived intangible assets	14,500	14,500		14,500
Goodwill	19,828	19,828		20,365
Goodwill impairment		(537)
Other long-term liabilities	(1,174)	(1,174)		(1,174)
Total consideration	$ 38,163	$ 38,163		38,700
Adjustment				$ (537)