Restructuring and Acquisition Related Costs (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring And Related Activities [Abstract]

Schedule of Restructuring and Acquisition Related Costs

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

	Year Ended December 31,
	2021		2020			2019
2020 restructuring	$	8,133	$	2,736		$	—
2019 restructuring		208		988			7,463
2018 restructuring		-		753			1,177
Total restructuring related charges	$	8,341	$	4,477		$	8,640
Acquisition and related charges	$	9,679	$	(667	)	$	7,934
Total restructuring and acquisition related costs	$	18,020	$	3,810		$	16,574

Summary of Restructuring Charges by Reportable Segment

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

	Year Ended December 31,				Cumulative Costs as of
	2021		2020		December 31, 2021
Photonics	$	3,085	$	740	$	3,825
Vision		813		1,330		2,143
Precision Motion		4,206		524		4,730
Unallocated Corporate and Shared Services		29		142		171
Total	$	8,133	$	2,736	$	10,869

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

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

	Total			Employee Related			Facility Related			Other
Balance at December 31, 2019	$	2,073		$	1,988		$	—		$	85
Restructuring charges		4,477			3,506			503			468
Cash payments		(4,024	)		(3,229	)		(115	)		(680	)
Non-cash write-offs and other adjustments		(726	)		(584	)		(272	)		130
Balance at December 31, 2020		1,800			1,681			116			3
Restructuring charges		8,341			6,462			1,309			570
Cash payments		(3,727	)		(2,898	)		(226	)		(603	)
Non-cash write-offs and other adjustments (1)		(3,728	)		(3,138	)		(649	)		59
Balance at December 31, 2021	$	2,686		$	2,107		$	550		$	29

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