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Income Taxes (Tables)
12 Months Ended
Dec. 28, 2018
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign
2018, 2017 and 2016 consisted of the following (in thousands):
 
2018
 
2017
 
2016
U.S.
$
(4,273
)
 
$
306

 
$
(12,547
)
International
65,389

 
48,953

 
40,712

Total income before income taxes from continuing operations
$
61,116

 
$
49,259

 
$
28,165

Schedule of Components of Income Tax Expense (Benefit)
The provision (benefit) for income taxes from continuing operations for fiscal years 2018, 2017 and 2016 was comprised of the following from continuing operations (in thousands):
 
2018
 
2017
 
2016
Current:
 
 
 
 
 
Federal
$
80

 
$
(1,558
)
 
$
(8,327
)
State
166

 
(29
)
 
149

International
9,490

 
8,539

 
7,230

 
9,736

 
6,952

 
(948
)
Deferred:
 
 
 
 
 
Federal
6,610

 
(45,114
)
 
5,457

State
103

 
(295
)
 
527

International
(2,366
)
 
629

 
(1,749
)
 
4,347

 
(44,780
)
 
4,235

Total provision (benefit) for income taxes
$
14,083

 
$
(37,828
)
 
$
3,287

Schedule of Effective Income Tax Rate Reconciliation
The provision (benefit) for income taxes from continuing operations differs from the U.S. statutory rate for fiscal years 2018, 2017 and 2016 due to the following:
 
2018
 
2017
 
2016
Statutory rate
$
12,834

21.0
 %
 
$
17,240

35.0
 %
 
$
9,858

35.0
 %
Federal tax credits
(1,700
)
(2.8
)
 
(1,674
)
(3.4
)
 
(1,570
)
(5.6
)
Foreign rate differential
(6,040
)
(9.9
)
 
(12,934
)
(26.3
)
 
(9,665
)
(34.3
)
Uncertain tax positions
147

0.2

 
34

0.1

 
219

0.8

State taxes, net of federal benefit
975

1.6

 
(543
)
(1.1
)
 
(311
)
(1.1
)
U.S. tax on foreign earnings
10,473

17.1

 
1,471

3.0

 
1,508

5.4

Valuation allowance
(567
)
(0.9
)
 
1,030

2.1

 
1,273

4.5

Tax Reform Act
11


 
(39,394
)
(80.0
)
 


Change in tax rates


 


 
(270
)
(1.0
)
Non-deductible transaction costs


 


 
1,012

3.6

Change in tax law (Internal Revenue Code §987)


 


 
2,630

9.3

Other
(2,050
)
(3.3
)
 
(3,058
)
(6.2
)
 
(1,397
)
(5.0
)
Effective tax rate
$
14,083

23.0
 %
 
$
(37,828
)
(76.8
)%
 
$
3,287

11.7
 %
Schedule of Deferred Tax Assets and Liabilities
erred tax liability, including discontinued operations at December 29, 2017, consists of the following (in thousands):
 
December 28,
2018
 
December 29,
2017
Net operating loss carryforwards
$
18,088

 
$
107,005

Tax credit carryforwards
24,593

 
28,215

Inventories
3,408

 
4,956

Accrued expenses
39

 
3,815

Stock-based compensation
2,340

 
5,531

Gross deferred tax assets
48,468

 
149,522

Less valuation allowance
(34,339
)
 
(36,480
)
Net deferred tax assets
14,129

 
113,042

Property, plant and equipment
(9,445
)
 
(27,547
)
Intangible assets
(198,648
)
 
(219,576
)
Convertible subordinated notes

 
(806
)
Other
(6,009
)
 
(6,325
)
Gross deferred tax liabilities
(214,102
)
 
(254,254
)
Net deferred tax liability
$
(199,973
)
 
$
(141,212
)
Presented as follows:
 
 
 
Noncurrent deferred tax asset
$
3,937

 
$
4,152

Noncurrent deferred tax liability
(203,910
)
 
(145,364
)
Net deferred tax liability
$
(199,973
)
 
$
(141,212
)
Schedule of Deferred Tax Liabilities by Balance Sheet Account [Table Text Block]
The components of the net deferred tax liability, by balance sheet account, were as follows:
 
December 28,
2018
 
December 29,
2017
Deferred income tax asset
$
3,937

 
$
3,451

Noncurrent assets of discontinued operations held for sale

 
701

Deferred income tax liabilities
(203,910
)
 
(140,964
)
Noncurrent liabilities of discontinued operations held for sale

 
(4,400
)
Net deferred tax liability
$
(199,973
)
 
$
(141,212
)
Summary of Operating Loss and Tax Credit Carryforwards
As of December 28, 2018, the Company has the following carryforwards available:
Jurisdiction
 
Tax
Attribute
 
Amount
(in millions)
 
Begin to
Expire
U.S. Federal
 
Net operating loss
 
$
39.1

 
2034
U.S. State
 
Net operating loss
 
130.6

 
2019
International
 
Net operating loss
 
31.1

 
2019
U.S. Federal
 
Foreign tax credit
 
17.0

 
2019
U.S. Federal and State
 
R&D tax credit
 
3.6

 
2019
U.S. State
 
Investment tax credit
 
6.8

 
2019
Summary of Income Tax Contingencies
Below is a summary of changes to the unrecognized tax benefit for fiscal years 2018, 2017 and 2016. The amounts for 2016 and 2017 include discontinued operations. The amounts for 2018 reflect discontinued operations through the date of divestiture of the AS&O product line, which is reflected in the table below as a reduction during 2018 (in thousands):
 
2018
 
2017
 
2016
Balance, beginning of year
$
12,088

 
$
10,561

 
$
9,271

Additions based upon tax positions related to the current year
300

 
3,833

 
1,450

Additions (reductions) related to prior period tax returns
(75
)
 
(14
)
 
240

Reductions relating to settlements with tax authorities
(98
)
 

 

Reductions relating to divestiture
(6,846
)
 

 

Reductions as a result of a lapse of applicable statute of limitations

 
(510
)
 

Revaluation due to change in tax rate (Tax Reform Act)

 
(1,782
)
 

Reductions relating to business combinations

 

 
(400
)
Balance, end of year
$
5,369

 
$
12,088

 
$
10,561