Supplementary Balance Sheet Information (Tables)

6 Months Ended

Jul. 03, 2015

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Inventories

Inventories

	July 3, 2015		December 31, 2014
Raw materials	$	38,418	$	38,934
Work-in-process		10,621		9,899
Finished goods		9,727		11,945
Demo and consigned inventory		1,644		2,165
Total inventories	$	60,410	$	62,943

Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

	July 3, 2015		December 31, 2014
Accrued compensation and benefits	$	8,809	$	7,741
Accrued warranty		3,539		3,044
Accrued professional services		1,580		1,827
Other		8,109		6,789
Total	$	22,037	$	19,401

Accrued Warranty

Accrued Warranty

	Six Months Ended
	July 3, 2015			June 27, 2014
Balance at beginning of the period	$	3,044		$	3,315
Provision charged to cost of revenue		1,524			976
Acquisition related warranty accrual		94			90
Use of provision		(730	)		(973	)
Divestiture of JK Lasers		(392	)		—
Foreign currency exchange rate changes		(1	)		8
Balance at end of period	$	3,539		$	3,416

Summary of Other Long Term Liabilities

Other Long Term Liabilities

	July 3, 2015		December 31, 2014
Capital lease obligations	$	9,269	$	9,507
Accrued pension liabilities		5,305		6,037
Other		3,683		3,275
Total	$	18,257	$	18,819