Restructuring, Acquisition, and Related Costs (Tables)

9 Months Ended

Oct. 01, 2021

Restructuring And Related Activities [Abstract]

Schedule of Restructuring, Acquisition and Related Costs

The following table summarizes restructuring, acquisition, and related costs in the accompanying consolidated statements of operations (in thousands):

	Three Months Ended				Nine Months Ended
	October 1,		October 2,		October 1,		October 2,
	2021		2020		2021		2020
2020 restructuring	$	5,185	$	1,006	$	7,688	$	1,006
2019 restructuring		—		68		208		667
2018 restructuring		—		—		—		754
Total restructuring charges	$	5,185	$	1,074	$	7,896	$	2,427
Acquisition and related charges		2,935		613		8,589		3,164
Total restructuring, acquisition, and related costs	$	8,120	$	1,687	$	16,485	$	5,591

Summary of Restructuring Charges by Reportable Segment

The following table summarizes restructuring costs associated with the 2020 restructuring program by reportable segment (in thousands):

	Three Months Ended				Nine Months Ended
	October 1,		October 2,		October 1,		October 2,
	2021		2020		2021		2020
Photonics	$	2,349	$	—	$	2,839	$	—
Vision		193		1,006		890		1,006
Precision Motion		2,643		—		3,959		—
Unallocated Corporate and Shared Services		—		—		—		—
Total	$	5,185	$	1,006	$	7,688	$	1,006

Summary of Accrual Activities by Components Related to Company's Restructuring Plans

The following table summarizes the accrual activities, by component, related to the Company’s restructuring plans recorded in the accompanying consolidated balance sheets (in thousands):

	Total			Severance			Facility			Other
Balance at December 31, 2020	$	1,800		$	1,681		$	116		$	3
Restructuring charges		7,896			6,292			1,183			421
Cash payments		(2,333	)		(1,837	)		(215	)		(281	)
Non-cash charges and other adjustments (1)		(3,486	)		(2,981	)		(505	)		—
Balance at October 1, 2021	$	3,877		$	3,155		$	579		$	143

⁽¹⁾ Non-cash charges included stock compensation charges amounting to $3.0 million associated with severance agreements for certain employees.