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Balance Sheet Details (Tables)
 12 Months Ended
Dec. 31, 2012
Balance Sheet Related Disclosures [Abstract]  
Components of property, plant and equipment, net
 
As of December 31,
 
2012
 
2011
 
(In thousands)
Building
$
42,129

 
$
42,958

Computer software
36,349

 
34,403

Computer equipment
29,371

 
27,834

Furniture and fixtures
12,708

 
10,019

Leasehold improvements
9,731

 
3,810

Machinery
13,501

 
9,711

Construction in progress
9,559

 
8,263

 
153,348

 
136,998

Less accumulated depreciation and amortization
(66,443
)
 
(55,893
)
 
$
86,905

 
$
81,105
Schedule of accumulated other comprehensive Income (Loss)
 
As of December 31,
 
2012
 
2011
 
(In thousands)
Foreign currency translation adjustments, net of tax
$
86

 
$
86

Unrealized loss on available-for-sale securities, net of tax
(386
)
 
(475
)
Total
$
(300
)
 
$
(389
)