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Income Taxes (Tables)
12 Months Ended
Dec. 28, 2019
Income Tax Disclosure [Abstract]  
Components of Income Before Provision for Income Taxes
The components of income before provision for income taxes are as follows (in thousands):
 
Year Ended
December 28,
2019
 
Year Ended
December 29,
2018
 
Year Ended
December 30,
2017
United States
$
181,664

 
$
173,848

 
$
159,245

Foreign
52,502

 
39,928

 
26,555

Total
$
234,166

 
$
213,776

 
$
185,800


Current and Deferred Provision (Benefit) for Income Taxes
The following table presents the current and deferred provision (benefit) for income taxes (in thousands):
 
Year Ended
December 28,
2019
 
Year Ended
December 29,
2018
 
Year Ended
December 30,
2017
Current:
 
 
 
 
 
Federal
$
30,218

 
$
20,418

 
$
38,777

State
5,273

 
3,075

 
1,940

Foreign
8,424

 
5,014

 
3,018

Subtotal
$
43,915

 
$
28,507

 
$
43,735

Deferred:
 
 
 
 
 
Federal
$
(3,732
)
 
$
(6,678
)
 
$
20,735

State
(1,985
)
 
(1,258
)
 
(3,420
)
Foreign
(248
)
 
(338
)
 
(39
)
Subtotal
(5,965
)
 
(8,274
)
 
17,276

Total
$
37,950

 
$
20,233

 
$
61,011


Reconciliation of U.S. Federal Statutory Tax Rate to Company's Effective Tax Rate
The reconciliation of the U.S. federal statutory tax rate to the Company’s effective tax rate is as follows:
 
Year Ended
December 28,
2019
 
Year Ended
December 29,
2018
 
Year Ended
December 30,
2017
Statutory regular federal income tax rate
21.0
 %
 
21.0
 %
 
35.0
 %
State provision, net of federal benefit
1.1

 
0.7

 
(0.6
)
Nondeductible executive compensation
2.1

 
1.9

 
1.3

Research and development tax credits
(1.1
)
 
(1.4
)
 
(2.2
)
Foreign income taxed at different rates
(1.7
)
 
(2.0
)
 
(3.4
)
U.S. tax on foreign income, net
0.1

 
0.7

 

Impact of 2017 Tax Act

 
0.1

 
18.8

Withholding taxes on undistributed foreign earnings, net

 
(0.6
)
 
3.5

Excess stock-based compensation
(6.0
)
 
(9.4
)
 
(20.3
)
Derecognition of uncertain tax position

 
(1.5
)
 

Other
0.7

 

 
0.7

Total
16.2
 %
 
9.5
 %
 
32.8
 %

Components of Deferred Tax Assets
The components of the deferred tax assets are as follows (in thousands):
 
December 28,
2019
 
December 29,
2018
Deferred tax assets:
 
 
 
Tax credits
$
6,438

 
$
5,672

Deferred revenue
13,948

 
331

Accrued liabilities
13,273

 
12,645

Stock-based compensation
7,926

 
6,615

Operating lease assets
4,174

 

Other
1,591

 

Total
47,350

 
25,263

Valuation allowance

 

Total deferred tax assets
$
47,350

 
$
25,263

 
 
 
 
Deferred tax liabilities:
 
 
 
Property and equipment
$
(6,604
)
 
$
(2,504
)
State taxes and other
(1,152
)
 
(857
)
Withholding taxes on undistributed foreign earnings
(2,829
)
 
(2,803
)
Operating lease liabilities
(3,845
)
 

Other

 
(845
)
Total deferred tax liabilities
(14,430
)
 
(7,009
)
Net deferred tax assets
$
32,920

 
$
18,254


Reconciliation of Total Amounts of Unrecognized Tax Benefits
The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):
 
Year Ended
December 28,
2019
 
Year Ended
December 29,
2018
Unrecognized tax benefits (gross), beginning of period
$
15,412

 
$
16,157

Increase from tax positions in prior period
81

 
701

Increase from tax positions in current period
2,636

 
2,633

Settlements

 
(33
)
Lapse of statute of limitations
(1,120
)
 
(4,046
)
Unrecognized tax benefits (gross), end of period
$
17,009

 
$
15,412