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Valuation and Qualifying Accounts (Tables)
 12 Months Ended
Dec. 29, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
The following table displays the activity related to changes in our valuation and qualifying accounts:
(In thousands)
Balance at
beginning of period
 
Charged (Credit) to
costs and
expenses
 
Charged (credit) to
other accounts
 
Settlements & write-offs
net of
recoveries
 
Balance at end of period
Fiscal year ended December 29, 2018
 
 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets
209,691

 
(2,583
)
 
—

 
—

 
207,108

Allowance for doubtful accounts
9,371

 
1

 
73

 
(9,248
)
 
197

Allowance for warranty expense
255

 
580

 
—

 
(482
)
 
353

 
$
219,317

 
$
(2,002
)
 
$
73

 
$
(9,730
)
 
$
207,658

Fiscal year ended December 30, 2017
 
 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets
$
260,687

 
$
(50,960
)
 
$
(36
)
 
$
—

 
$
209,691

Allowance for doubtful accounts
9,299

 
3

 
38

 
31

 
9,371

Allowance for warranty expense
352

 
100

 
—

 
(197
)
 
255

 
$
270,338

 
$
(50,857
)
 
$
2

 
$
(166
)
 
$
219,317

Fiscal year ended December 31, 2016
 
 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets
$
252,578

 
$
7,450

 
$
659

 
$
—

 
$
260,687

Allowance for doubtful accounts
621

 
7,362

 
2,284

 
(968
)
 
9,299

Allowance for warranty expense
370

 
216

 
—

 
(234
)
 
352

 
$
253,569

 
$
15,028

 
$
2,943

 
$
(1,202
)
 
$
270,338