XML 42 R23.htm IDEA: XBRL DOCUMENT v3.8.0.1
Balance Sheet Details (Tables)
 3 Months Ended
Mar. 31, 2018
Balance Sheet Related Disclosures [Abstract]  
Summary of accounts receivable, net
Accounts receivable, net consisted of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Accounts receivable
 
$
56,134

 
$
81,793

Allowance for doubtful accounts
 
(388
)
 
(579
)
Product return reserve (1)
 
—

 
(822
)
 
 
$
55,746

 
$
80,392


(1)
With adoption of Topic 606 on January 1, 2018, the product return reserve is considered a contract liability and has been reclassified to accrued liabilities.
Summary of inventory
Inventory consisted of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Raw materials
 
$
2,244

 
$
1,211

Finished goods
 
24,817

 
30,318

 
 
$
27,061

 
$
31,529
Summary of property and equipment, net
Property and equipment, net consisted of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Test equipment
 
$
40,908

 
$
39,952

Computer equipment and software
 
33,206

 
32,175

Furniture and fixtures
 
2,744

 
2,714

Leasehold improvements
 
5,206

 
6,029

Total
 
82,064

 
80,870

Accumulated depreciation and amortization
 
(67,256
)
 
(65,189
)
 
 
$
14,808

 
$
15,681
Summary of accrued liabilities
Accrued liabilities consisted of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Accrued compensation and related benefits
 
$
18,367

 
$
15,563

Accrued warranty and retrofit
 
8,097

 
8,708

Accrued professional and consulting fees
 
5,349

 
9,604

Accrued restructuring charges
 
4,927

 
1,417

Accrued excess and obsolete inventory at contract manufacturers
 
3,371

 
2,430

Accrued non-income related taxes
 
1,604

 
1,778

Customer over payments
 
968

 
1,050

Product return reserve
 
959

 
—

Accrued insurance
 
717

 
827

Accrued freight
 
695

 
593

Accrued business events
 
—

 
1,272

Accrued other
 
3,729

 
6,037

 
 
$
48,783

 
$
49,279
Product warranty activities
Changes in the Company’s warranty and retrofit reserves in the periods as indicated were as follows (in thousands):
 
 
Three Months Ended
 
 
March 31,
2018
 
April 1,
2017
Balance at beginning of period
 
$
8,708

 
$
12,214

Provision for warranty and retrofit charged to cost of revenue
 
1,469

 
1,862

Utilization of reserve
 
(2,080
)
 
(3,298
)
Balance at end of period
 
$
8,097

 
$
10,778
Summary of restructuring activities
The following table summarizes the activities pursuant to the above restructuring plans (in thousands):
 
 
Severance and Related Benefits
 
Facilities
Balance at December 31, 2017
 
$
975

 
$
442

Restructuring charges
 
4,567

 
773

Cash payments
 
(1,501
)
 
(329
)
Balance at March 31, 2018
 
$
4,041

 
$
886
Summary of deferred revenue
Deferred revenue consisted of the following (in thousands):
 
 
March 31,
2018
 
December 31,
2017
Current:
 
 
 
 
Products and services
 
$
10,675

 
$
9,125

Extended warranty
 
4,001

 
3,951

 
 
14,676

 
13,076

Long-term:
 
 
 
 
Products and services
 
493

 
18

Extended warranty
 
20,219

 
20,627

 
 
20,712

 
20,645

 
 
$
35,388

 
$
33,721