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Disposed and Discontinued Operations (Details) - USD ($) $ in Millions		12 Months Ended
	Jul. 07, 2016	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 28, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Liabilities		$ 0.0	$ 0.6
Total assets		1,731.6	1,654.9
Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent			0.6
Disposal Group, Including Discontinued Operation, Revenue		0.0	0.0	$ 0.0
Disposal Group, Including Discontinued Operation, Operating Expense		0.0	0.0	0.0
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax		0.0	0.0	0.0
Discontinued Operation, Tax Effect of Discontinued Operation		(0.2)	(3.7)	0.6
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax		0.2	3.7	(0.6)
Disposal Group, Including Discontinued Operation, Liabilities			$ 0.6
Liabilities		0.0
Total assets		$ 0.0
Timing Device Business [Member] | Precision Devices | Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of business				$ 135.1
Disposal Group, Including Discontinued Operation, Consideration					$ 130.0
Speaker and Receiver Product Line | Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of business	$ 40.6
Disposal Group, Including Discontinued Operation, Consideration	$ 45.0

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