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Investments (Tables)
 12 Months Ended
Jun. 29, 2014
Investments, Debt and Equity Securities [Abstract]  
Summary of Short-term Investments by Type
The following table summarizes short-term investments (in thousands): 
 
June 30, 2013
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
Municipal bonds

$250,206

 

$817

 

($1,314
)
 

$249,709

Corporate bonds
192,147

 
1,678

 
(1,765
)
 
192,060

U.S. agency securities
39,288

 
186

 
—

 
39,474

Non-U.S. certificates of deposit
345,000

 
—

 
—

 
345,000

Non-U.S. government securities
7,608

 
14

 
(19
)
 
7,603

Total short-term investments

$834,249

 

$2,695

 

($3,098
)
 

$833,846

The following table summarizes short-term investments (in thousands):
 
June 29, 2014
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
Municipal bonds

$291,869

 

$2,323

 

($12
)
 

$294,180

Corporate bonds
200,177

 
2,283

 
(114
)
 
202,346

U.S. agency securities
18,994

 
141

 
—

 
19,135

Non-U.S. certificates of deposit
352,928

 
—

 
—

 
352,928

Non-U.S. government securities
7,025

 
28

 
—

 
7,053

Total short-term investments

$870,993

 

$4,775

 

($126
)
 

$875,642
Summary of Gross Unrealized Losses and Fair Value of Short-term Investments by Type and Length of Time
The following table presents the gross unrealized losses and estimated fair value of the Company’s short-term investments, aggregated by investment type and the length of time that individual securities have been in a continuous unrealized loss position (in thousands, except numbers of securities):
 
June 30, 2013
 
Less than 12 Months
 
Greater than 12 Months
 
Total
 
Fair Value
 
Unrealized
Loss
 
Fair Value
 
Unrealized
Loss
 
Fair Value
 
Unrealized
Loss
Municipal bonds

$126,926

 

($1,314
)
 

$—

 

$—

 

$126,926

 

($1,314
)
Corporate bonds
102,010

 
(1,765
)
 
—

 
—

 
102,010

 
(1,765
)
U.S. agency securities
—

 
—

 
—

 
—

 
—

 
—

Non-U.S. certificates of deposit
—

 
—

 
—

 
—

 
—

 
—

Non-U.S. government securities
5,534

 
(19
)
 
—

 
—

 
5,534

 
(19
)
Total

$234,470

 

($3,098
)
 

$—

 

$—

 

$234,470

 

($3,098
)
Number of securities with an unrealized loss
 
 
123

 
 
 
—

 
 
 
123

The following table presents the gross unrealized losses and estimated fair value of the Company’s short-term investments, aggregated by investment type and the length of time that individual securities have been in a continuous unrealized loss position (in thousands, except numbers of securities): 
 
June 29, 2014
 
Less than 12 Months
 
Greater than 12 Months
 
Total
 
Fair Value
 
Unrealized
Loss
 
Fair Value
 
Unrealized
Loss
 
Fair Value
 
Unrealized
Loss
Municipal bonds

$7,906

 

($8
)
 

$1,520

 

($4
)
 

$9,426

 

($12
)
Corporate bonds
15,696

 
(31
)
 
13,049

 
(83
)
 
28,745

 
(114
)
U.S. agency securities
—

 
—

 
—

 
—

 
—

 
—

Non-U.S. certificates of deposit
—

 
—

 
—

 
—

 
—

 
—

Non-U.S. government securities
—

 
—

 
—

 
—

 
—

 
—

Total

$23,602

 

($39
)
 

$14,569

 

($87
)
 

$38,171

 

($126
)
Number of securities with an unrealized loss
 
 
13

 
 
 
7

 
 
 
20
Contractual Maturities of Short-term Investments by Type
The contractual maturities of short-term investments at June 29, 2014 were as follows (in thousands): 
 
Within One
Year
 
After One,
Within Five
Years
 
After Five,
Within Ten
Years
 
After Ten
Years
 
Total
Municipal bonds

$54,105

 

$213,308

 

$26,767

 

$—

 

$294,180

Corporate bonds
18,992

 
154,351

 
29,003

 
—

 
202,346

U.S. agency securities
3,008

 
16,127

 
—

 
—

 
19,135

Non-U.S. certificates of deposit
352,928

 
—

 
—

 
—

 
352,928

Non-U.S. government securities
4,032

 
3,021

 
—

 
—

 
7,053

Total short-term investments

$433,065

 

$386,807

 

$55,770

 

$—

 

$875,642