Restructuring, Acquisition and Divestiture Related Costs (Tables)

3 Months Ended

Mar. 31, 2017

Restructuring And Related Activities [Abstract]

Schedule Of Restructuring And Related Cost

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

	Three Months Ended
	March 31,		April 1,
	2017		2016
2016 restructuring	$	33	$	2,500
2011 restructuring		4		212
Total restructuring and divestiture charges		37		2,712
Acquisition and related charges		780		246
Total restructuring, acquisition and divestiture related costs	$	817	$	2,958

Summary of Restructuring Costs for Each Segment and Unallocated Corporate and Shared Services

The following table summarizes restructuring costs for each segment and unallocated corporate and shared services related to the 2016 restructuring plan (in thousands):

	Three Months Ended
	March 31,		April 1,
	2017		2016
Photonics	$	—	$	469
Vision		32		1,739
Precision Motion		—		87
Unallocated Corporate and Shared Services		1		205
Total	$	33	$	2,500

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			Depreciation		Other
Balance at December 31, 2016	$	1,736		$	611		$	1,111		$	—	$	14
Restructuring charges		37			32			—			—		5
Cash payments		(420	)		(281	)		(125	)		—		(14	)
Non-cash write-offs and other adjustments		—			8			(8	)		—		—
Balance at March 31, 2017	$	1,353		$	370		$	978		$	—	$	5