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Quarterly Financial Data (Unaudited) (Tables)
 12 Months Ended
Dec. 30, 2017
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information
A summary of the Company's consolidated quarterly results of operations is as follows:
 
 
2017
 
2016
(In thousands, except per share data)
 
Q4
 
Q3
 
Q2
 
Q1
 
Q4
 
Q3
 
Q2
 
Q1
Revenue
 
$
95,266

 
$
91,971

 
$
94,137

 
$
104,587

 
$
118,108

 
$
113,225

 
$
99,209

 
$
96,512

Gross margin
 
51,216

 
53,322

 
51,209

 
60,832

 
63,480

 
67,424

 
58,426

 
57,104

Restructuring charges
 
2,483

 
3,071

 
1,576

 
66

 
951

 
317

 
2,568

 
5,431

Net loss
 
$
(7,213
)
 
$
(43,052
)
 
$
(13,022
)
 
$
(7,275
)
 
$
(8,164
)
 
$
(12,414
)
 
$
(13,810
)
 
$
(19,711
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net loss per share - basic and diluted
 
$
(0.06
)
 
$
(0.35
)
 
$
(0.11
)
 
$
(0.06
)
 
$
(0.07
)
 
$
(0.10
)
 
$
(0.12
)
 
$
(0.17
)