Supplementary Balance Sheet Information (Tables)

9 Months Ended

Oct. 02, 2015

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Inventories

Inventories

	October 2, 2015		December 31, 2014
Raw materials	$	39,005	$	38,934
Work-in-process		10,624		9,899
Finished goods		9,673		11,945
Demo and consigned inventory		1,966		2,165
Total inventories	$	61,268	$	62,943

Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

	October 2, 2015		December 31, 2014
Accrued compensation and benefits	$	8,602	$	7,741
Accrued warranty		3,529		3,044
Accrued professional services		1,332		1,827
Other		8,431		6,789
Total	$	21,894	$	19,401

Accrued Warranty

Accrued Warranty

	Nine Months Ended
	October 2, 2015			September 26, 2014
Balance at beginning of the period	$	3,044		$	3,315
Provision charged to cost of revenue		1,878			1,361
Acquisition related warranty accrual		94			90
Use of provision		(1,084	)		(1,529	)
Divestiture of JK Lasers		(392	)		—
Foreign currency exchange rate changes		(11	)		(14	)
Balance at end of period	$	3,529		$	3,223

Summary of Other Long Term Liabilities

Other Long Term Liabilities

	October 2, 2015		December 31, 2014
Capital lease obligations	$	9,100	$	9,507
Accrued pension liabilities		4,805		6,037
Other		3,572		3,275
Total	$	17,477	$	18,819