Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

The change in product warranty liability was comprised of the following (in thousands):

December 30, 2016	$	3,911
Additions to warranty reserve, net of reversals	1,235
Warranty claims settled	(1,032		)
June 30, 2017	$	4,114

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The impact to the Company’s results of operations from its forward contract hedges is as follows (in thousands):

	Three Months Ended					Six Months Ended
	June 30, 2017			July 1, 2016		June 30, 2017		July 1, 2016
Increase in sales	$	163		$	—	$	139	$	—
Increase (decrease) in cost of sales	(179		)	768		883		1,387
Ineffective portion of change in fair value	—			—		—		—

Schedule of Foreign Exchange Contracts, Statement of Financial Position

Information regarding outstanding foreign currency contracts designated as cash flow hedges as of June 30, 2017 is as follows (dollars in thousands):

Aggregate Notional Amount		Start Date	End Date	$/Foreign Currency		Fair Value		Balance Sheet Location
$	12,327	Jan 2017	Dec 2017	0.0514	Peso	$	710	Prepaid expenses and other current assets
$	12,896	Feb 2017	Dec 2017	1.0747	Euro	$	877	Prepaid expenses and other current assets