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

	Three Months Ended				Six Months Ended
	June 28,		June 29,		June 28,		June 29,
	2019		2018		2019		2018
2019 restructuring	$	1,965	$	—	$	2,932	$	—
2018 restructuring		169		988		438		988
Total restructuring charges		2,134		988		3,370		988
Acquisition and related charges		2,179		1,451		2,997		1,476
Total restructuring and acquisition related costs	$	4,313	$	2,439	$	6,367	$	2,464

During the fourth quarter of 2018, the Company implemented a restructuring plan intended to realign operations, reduce costs, achieve operational efficiencies and focus resources on growth initiatives. During the three and six months ended June 28, 2019, the Company recorded $1.0 million and $2.0 million, respectively, in severance and related costs, and $0.8 million and $0.9 million, respectively, in facility related costs, in connection with the 2019 restructuring plan. As of June 28, 2019, the Company incurred cumulative costs related to this restructuring plan totaling $3.3 million. The Company anticipates completing the 2019 restructuring program in the first quarter of 2020 and expects to incur additional restructuring charges of $3.0 million to $4.5 million related to the 2019 restructuring program.

The following table summarizes restructuring costs associated with the 2019 restructuring program for each reportable segment and unallocated corporate and shared services costs (in thousands):

	Three Months Ended		Six Months Ended
	June 28,		June 28,
	2019		2019
Photonics	$	1,357	$	1,550
Vision		306		656
Precision Motion		147		194
Unallocated Corporate and Shared Services		155		532
Total	$	1,965	$	2,932

During the second quarter of 2018, the Company initiated a program to integrate manufacturing operations as a result of recent acquisition activities. During the three and six months ended June 28, 2019, the Company recorded $0.2 million and $0.4 million, respectively, in severance and related costs in connection with the 2018 restructuring plan. These costs were reported in the Vision reportable segment. As of June 28, 2019, the Company incurred cumulative costs related to this restructuring plan totaling $2.1 million. The Company anticipates completing the 2018 restructuring program during the fourth quarter of 2019 and expects to incur additional restructuring charges of $0.5 million to $0.7 million related to the 2018 restructuring program in the Vision reportable segment.

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, 2018	$	1,276		$	876		$	388		$	12
Restructuring charges		3,370			2,281			928			161
Cash payments		(1,897	)		(1,719	)		(19	)		(159	)
Reclassification of reserves ^(a)		(477	)		—			(477	)		—
Non-cash write-offs and other adjustments		(964	)		(144	)		(820	)		—
Balance at June 28, 2019	$	1,308		$	1,294		$	—		$	14

Acquisition related costs in connection with business combinations, including finders’ fees, legal, valuation, and other professional or consulting fees, totaled $1.4 million and $1.6 million for the three and six months ended June 28, 2019, respectively, and $0.3 million for the three and six months ended June 29, 2018, respectively. Acquisition related costs recognized under earn-out agreements in connection with acquisitions totaled $0.8 million and $1.4 million for the three and six months ended June 28, 2019, respectively, and $1.1 million for the three and six months ended June 29, 2018, respectively. The majority of acquisition related costs for the three and six months ended June 28, 2019 were included in the Company’s Precision Motion and Unallocated Corporate and Shared Services reportable segments.