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Balance Sheet Components (Tables)
6 Months Ended
Jul. 01, 2012
Balance Sheet Related Disclosures [Abstract]  
Schedule Of Available-For-Sale Short-Term
Short-Term Investments

 
As of
 
July 1, 2012
 
December 31, 2011
 
Cost
 
Unrealized Gain
 
Unrealized Loss
 
Estimated Fair Value
 
 Cost
 
Unrealized Gain
 
Unrealized Loss
 
Estimated Fair Value
U.S. Treasuries
$
200,499

 
$
1

 
$
(7
)
 
$
200,493

 
$
144,673

 
$
34

 
$
(4
)
 
$
144,703

Certificates of Deposits
2,780

 

 

 
2,780

 
94

 

 

 
94

Total
$
203,279

 
$
1

 
$
(7
)
 
$
203,273

 
$
144,767

 
$
34

 
$
(4
)
 
$
144,797

Schedule Of Accounts Receivable And Related Allowances
Accounts receivable, net
 
 
As of
 
July 1,
2012
 
December 31,
2011
Gross accounts receivable
$
289,935

 
$
279,932

Less: Allowance for doubtful accounts
(1,317
)
 
(1,335
)
  Allowance for sales returns
(13,866
)
 
(13,360
)
  Allowance for price protection
(2,983
)
 
(3,930
)
Total allowances
(18,166
)
 
(18,625
)
Total accounts receivable, net
$
271,769

 
$
261,307

Schedule Of Inventories
Inventories
 
 
As of
 
July 1,
2012
 
December 31,
2011
Raw materials
$
3,347

 
$
4,676

Finished goods
149,473

 
159,048

Total inventories
$
152,820

 
$
163,724

Schedule Of Property And Equipment, Net
Property and equipment, net
 
 
As of
 
July 1,
2012
 
December 31,
2011
Computer equipment
$
6,936

 
$
7,109

Furniture, fixtures and leasehold improvements
12,139

 
9,757

Software
20,861

 
19,974

Machinery and equipment
25,191

 
21,797

Construction in progress
367

 
662

 
65,494

 
59,299

Less: accumulated depreciation and amortization
(48,212
)
 
(43,415
)
Total property and equipment, net
$
17,282

 
$
15,884

Schedule Of Intangibles, Net
Intangibles, net
 
The following tables present details of the Company’s purchased intangible assets:

 
Gross
 
Accumulated Amortization
 
Net
July 1, 2012
 
 
 
 
 
Customer contracts and relationships
$
15,700

 
$
(2,290
)
 
$
13,410

Existing technology
18,159

 
(12,760
)
 
5,399

Core technology
10,800

 
(7,909
)
 
2,891

Trademarks
2,600

 
(2,238
)
 
362

Patents
1,270

 
(244
)
 
1,026

Non-compete
100

 
(100
)
 

Backlog
100

 
(100
)
 

Total intangibles, net
$
48,729

 
$
(25,641
)
 
$
23,088


 
Gross
 
Accumulated Amortization
 
Net
December 31, 2011
 
 
 
 
 
Customer contracts and relationships
$
15,700

 
$
(1,308
)
 
$
14,392

Existing technology
14,000

 
(12,548
)
 
1,452

Core technology
10,800

 
(7,357
)
 
3,443

Trademarks
2,600

 
(2,021
)
 
579

Patents
1,270

 
(180
)
 
1,090

Non-compete
100

 
(100
)
 

Backlog
100

 
(100
)
 

Total intangibles, net
$
44,570

 
$
(23,614
)
 
$
20,956

Schedule Of Estimated Amortization Expense Related To Intangibles
Estimated amortization expense related to intangibles for each of the next five years and thereafter is as follows:

Year Ending December 31
Amount
2012 (remaining six months)
$
2,373

2013
4,458

2014
4,133

2015
3,517

2016
3,209

Thereafter
5,398

Total expected amortization expense
$
23,088

Schedule Of Activity Related To Goodwill
Goodwill
 
The changes in the carrying amount of goodwill during the six months ended July 1, 2012 are as follows:

 
Retail
 
Commercial
 
Service Provider
 
Total
Goodwill at December 31, 2011
$
33,546

 
$
32,043

 
$
20,355

 
$
85,944

      Goodwill acquired during the period

 
3,041

 

 
3,041

Goodwill at July 1, 2012
$
33,546

 
$
35,084

 
$
20,355

 
$
88,985

Schedule Of Other Accrued Liabilities
.

Other accrued liabilities
 
 
As of
 
July 1,
2012
 
December 31,
2011
Sales and marketing programs
$
44,488

 
$
44,394

Warranty obligation
42,712

 
44,846

Freight
9,036

 
7,940

Other
24,283

 
23,300

Total other accrued liabilities
$
120,519

 
$
120,480