Restructuring and related activities are designed to better align the Company's operations with current market conditions through targeted facility consolidations, headcount reductions, and other measures to further optimize operations.

During the year ended December 31, 2022, the Company restructured its MEMS microphones product line through two restructuring programs, which are included within the CMM segment. These actions resulted in the settlement of supplier obligations, non-cash fixed asset write-offs, and severance pay. During the year ended December 31, 2022, the Company recorded restructuring charges of $39.0 million related to this action, including $21.1 million for the settlement of supplier obligations, $13.5 million in fixed asset write-off costs, and $4.4 million in severance pay and benefits.

In addition, during the year ended December 31, 2022, the Company recorded restructuring charges of $2.2 million for severance pay and benefits to rationalize the Intelligent Audio product line workforce, which is included within the CMM segment, and $0.6 million for other costs.

During the year ended December 31, 2022 the Company recorded total restructuring charges within Gross profit of $32.2 million, primarily for the settlement of supplier obligations, non-cash fixed asset write-offs, and severance pay associated with the MEMS microphones product line. During the year ended December 31, 2021, the Company recorded restructuring charges within Operating expenses of $9.6 million primarily for the settlement of supplier obligations and severance pay and benefits associated with the MEMS microphones product line and other actions to rationalize the Intelligent Audio product line workforce.

No restructuring charges were recorded within Gross profit for the year ended December 31, 2021. During the year ended December 31, 2021, the Company recorded restructuring charges within Operating expenses of $0.5 million. These charges were primarily for actions associated with the Intelligent Audio product line, which is included within the CMM segment.

During the year ended December 31, 2020, the Company restructured its Intelligent Audio product line. These actions resulted in a reduction in workforce and the refocusing of certain research and development activities. The Company recorded restructuring charges of $8.3 million related to these actions, including $5.4 million in severance pay and benefits, $1.7 million in fixed asset write-off costs, and $1.2 million in contract termination costs.

In addition, during the year ended December 31, 2020, the Company recorded restructuring charges of $4.0 million for severance pay and benefits primarily to rationalize the remaining CMM segment workforce as a direct result of the lower demand the Company experienced due to the COVID-19 pandemic.

During the year ended December 31, 2020, the Company recorded total restructuring charges within Gross profit of $2.3 million, primarily for fixed asset write-off costs and severance pay and benefits associated with the restructuring of the Intelligent Audio product line and other actions to rationalize the remaining CMM segment workforce. The Company also recorded total restructuring charges within Operating expenses of $10.0 million, primarily for severance pay and benefits and contract termination costs associated with the restructuring of the Intelligent Audio product line and other actions to rationalize the remaining CMM segment workforce.


	Years Ended December 31,
(in millions)	2022		2021		2020
Precision Devices	$	—	$	0.1	$	0.1
MedTech & Specialty Audio	—		0.1		1.2
Consumer MEMS Microphones	41.2		0.3		9.3
Corporate	0.6		—		1.7
Total	$	41.8	$	0.5	$	12.3


(in millions)	Severance Pay and Benefits		Contract Termination and Other Costs		Total
Balance at January 1, 2020	$	1.4	$	—	$	1.4
Restructuring charges	9.4		1.2		10.6
Payments	(8.9)		(0.5)		(9.4)

Balance at December 31, 2020	1.9		0.7		2.6
Restructuring charges	0.5		—		0.5
Payments	(2.0)		(0.7)		(2.7)

Balance at December 31, 2021	0.4		—		0.4
Restructuring charges	6.6		35.2		41.8
Payments	(6.2)		(1.6)		(7.8)
Other, including foreign currency (1)	0.1		(11.8)		(11.7)
Balance at December 31, 2022	$	0.9	$	21.8	$	22.7
(1) Other activity includes the non-cash disposal of fixed assets of $13.5 million within the MEMS microphones product line.


(in millions)	December 31, 2022		December 31, 2021
Other accrued expenses	$	4.0	$	0.4
Other liabilities	18.7		—
Total	$	22.7	$	0.4