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Marketable Securities (Tables)
 3 Months Ended
Jun. 24, 2017
Marketable Securities [Abstract]  
Schedule of Available-for-sale Securities
The following table is a summary of available-for-sale securities at March 25, 2017 (in thousands):
໿
໿
As of March 25, 2017
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
(Net Carrying
Amount)
Corporate debt securities
33,350

 
$
—

 
$
(20
)
 
$
33,330

Commercial paper
66,518

 
—

 
(35
)
 
66,483

Total securities
$
99,868

 
$
—

 
$
(55
)
 
$
99,813

The following table is a summary of available-for-sale securities at June 24, 2017 (in thousands):
As of June 24, 2017
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
(Net Carrying
Amount)
Corporate debt securities
$
133,471

 
$
76

 
$
(85
)
 
$
133,462

Non-US government securities
11,816

 
2

 
(9
)
 
11,809

Certificates of deposit
500

 
—

 
—

 
500

Agency discount notes
459

 
1

 
—

 
460

Total securities
$
146,246

 
$
79

 
$
(94
)
 
$
146,231
Schedule of Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity
The cost and estimated fair value of available-for-sale securities by contractual maturities were as follows (in thousands):
໿

June 24, 2017
 
March 25, 2017

Amortized
 
Estimated
 
Amortized
 
Estimated

Cost
 
Fair Value
 
Cost
 
Fair Value
Within 1 year
$
11,388

 
$
11,380

 
$
99,868

 
$
99,813

After 1 year
134,858

 
134,851

 
—

 
—

Total
$
146,246

 
$
146,231

 
$
99,868

 
$
99,813