Business Acquisitions - Summary of Consideration Paid and Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands				12 Months Ended
	Dec. 30, 2020	Dec. 31, 2019	Jul. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consideration Paid
Contingent consideration		$ 1,056
Purchase price				$ 8,309	$ 73,906	$ 0
Fair Values
Goodwill		$ 106,056		$ 109,497	$ 106,056	$ 71,057
Sensor Scientific, Inc.
Consideration Paid
Cash paid, net of cash acquired	$ 8,309
Contingent consideration	2,000
Purchase price	10,309
Fair Values
Current assets	2,618
Property, plant and equipment	129
Other assets	12
Goodwill	3,441
Intangible assets	5,161
Fair value of assets acquired	11,361
Less fair value of liabilities acquired	(1,052)
Purchase price	$ 10,309
Quality Thermistor, Inc.
Consideration Paid
Cash paid, net of cash acquired			$ 72,850
Contingent consideration			1,056
Purchase price			73,906
Fair Values
Current assets			6,221
Property, plant and equipment			2,567
Other assets			29
Goodwill			34,999
Intangible assets			32,800
Fair value of assets acquired			76,616
Less fair value of liabilities acquired			(2,710)
Purchase price			$ 73,906