Borrowings and Lines of Credit Borrowings and Lines of Credit - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2022 USD ($) shares	Dec. 31, 2020 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) Rate	Dec. 31, 2020 USD ($) $ / shares	Sep. 04, 2020 USD ($)	Oct. 11, 2017 USD ($)	May 04, 2016 USD ($) $ / shares
Debt Instrument [Line Items]
Long-term Debt, Current Maturities				$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Debt Instrument, Convertible, Conversion Ratio								54.2741	1842.50%
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share | $ / shares				$ 0	$ 0					$ 0.04
Debt covenant, EBITDA to interest ratio				3.25
Debt Instrument, Covenant, Debt to EBITDA, Maximum				3.75
Debt Instrument, Covenant, Senior Secured Leverage Ratio, Maximum				3.25
Long-term debt				$ 45.0	$ 70.0	70.0	70.0	$ 70.0	$ 70.0
Net deferred tax asset				$ 73.9	$ 78.1	78.1	$ 78.1	$ 78.1	$ 78.1
Document Fiscal Year Focus				2022
Line of Credit Facility, Commitment Fee Percentage				0.50%
Stock Issued During Period, Value, Conversion of Convertible Securities						0.0
Long-term Debt, Maturities, Repayments of Principal in Year Five				$ 0.0
Restructuring Charges				41.8		0.5				$ 12.3
Restructuring charges				41.8		0.5				10.6
Shares Issued During Period, Value, Exercise of Warrants	$ 3.1			0.0
Severance Pay and Benefits
Debt Instrument [Line Items]
Restructuring charges				6.6		0.5				9.4
Facility Closing [Member]
Debt Instrument [Line Items]
Restructuring charges				35.2		0.0				1.2
Cost of Goods Sold, Restructuring Charges [Member]
Debt Instrument [Line Items]
Restructuring Charges				21.1
Cost of Goods Sold, Restructuring Charges [Member] | Severance Pay and Benefits
Debt Instrument [Line Items]
Restructuring Charges				4.4
Intelligent Audio
Debt Instrument [Line Items]
Restructuring Charges				39.0
Intelligent Audio | Cost of Goods Sold, Restructuring Charges [Member] | Facility Closing [Member]
Debt Instrument [Line Items]
Restructuring Charges				$ 13.5
Credit Facility due October 11, 2022 [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity												$ 400.0
Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Line of credit facility, accordion feature, increase limit											$ 200.0
Line of credit facility, maximum borrowing capacity											$ 400.0
Treasury Stock [Member]
Debt Instrument [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities | shares							363,579
Stock Issued During Period, Value, Conversion of Convertible Securities						(5.9)
Shares Issued During Period, Shares, Exercise of Warrants | shares	200,000			203,615
Shares Issued During Period, Value, Exercise of Warrants				$ 3.1
Convertible Debt | Convertible Notes Due Twenty Twenty One [Member]
Debt Instrument [Line Items]
Debt instrument, face amount													$ 172.5
Debt instrument, convertible, carrying amount of equity component													$ 29.9
Interest Expense, Debt, Excluding Amortization		$ 5.6				4.7
Amortization of Debt Issuance Costs						0.8				0.9
Amortization of Debt Discount (Premium)						6.6				7.4
Payments for Hedge, Financing Activities			$ 44.5
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares													$ 21.1050
Proceeds from issuance of warrants				$ 39.1
Interest Expense, Debt						$ 12.1				$ 13.9
Debt Instrument, Interest Rate, Stated Percentage													3.25%
London Interbank Offered Rate (LIBOR) | Credit Facilities
Debt Instrument [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time		2.20%		3.21%	2.25%	2.25%	2.25%	2.25%	2.25%	2.20%
Minimum | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage				0.225%
Minimum | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage				0.50%
Minimum | London Interbank Offered Rate (LIBOR) | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.50%
Maximum | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage				0.375%
Maximum | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage				1.50%
Maximum | London Interbank Offered Rate (LIBOR) | Credit Facility due January 2, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				2.50%
Weighted Average
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage				0.23%				0.26%		0.26%