|
Summary of Investments (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 23, 2012
|
Jun. 24, 2012
|
|---|---|---|
| Financial Instruments [Line Items] | ||
| Fair Value | $ 1,330,498 | $ 1,297,931 |
|
Cash
|
||
| Financial Instruments [Line Items] | ||
| Cost | 304,988 | 240,841 |
| Fair Value | 304,988 | 240,841 |
|
Fixed Income Money Market Funds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 884,982 | 1,318,812 |
| Fair Value | 884,982 | 1,318,812 |
|
Municipal Notes And Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 269,347 | 321,001 |
| Unrealized Gain | 1,185 | 1,574 |
| Unrealized (Loss) | (46) | (8) |
| Fair Value | 270,486 | 322,567 |
|
US Treasury and Agencies
|
||
| Financial Instruments [Line Items] | ||
| Cost | 177,520 | 137,516 |
| Unrealized Gain | 92 | 43 |
| Unrealized (Loss) | (28) | (113) |
| Fair Value | 177,584 | 137,446 |
|
Government-Sponsored Enterprises
|
||
| Financial Instruments [Line Items] | ||
| Cost | 93,953 | 123,269 |
| Unrealized Gain | 169 | 67 |
| Unrealized (Loss) | (2) | (68) |
| Fair Value | 94,120 | 123,268 |
|
Foreign Governments Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 20,470 | 6,315 |
| Unrealized Gain | 103 | 43 |
| Unrealized (Loss) | (5) | |
| Fair Value | 20,568 | 6,358 |
|
Corporate Notes And Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 802,788 | 767,847 |
| Unrealized Gain | 2,603 | 1,443 |
| Unrealized (Loss) | (279) | (389) |
| Fair Value | 805,112 | 768,901 |
|
Mortgage Backed Securities- Residential
|
||
| Financial Instruments [Line Items] | ||
| Cost | 32,558 | 25,857 |
| Unrealized Gain | 107 | 121 |
| Unrealized (Loss) | (57) | (6) |
| Fair Value | 32,608 | 25,972 |
|
Mortgage Backed Securities - Commercial
|
||
| Financial Instruments [Line Items] | ||
| Cost | 96,118 | 84,682 |
| Unrealized Gain | 673 | 555 |
| Unrealized (Loss) | (386) | (384) |
| Fair Value | 96,405 | 84,853 |
|
Total Cash And Short Term Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,682,724 | 3,026,140 |
| Unrealized Gain | 4,932 | 3,846 |
| Unrealized (Loss) | (803) | (968) |
| Fair Value | 2,686,853 | 3,029,018 |
|
Publicly Traded Equity Securities
|
||
| Financial Instruments [Line Items] | ||
| Cost | 9,321 | 9,320 |
| Unrealized (Loss) | (4,776) | (3,407) |
| Fair Value | 4,545 | 5,913 |
|
Private Equity Securities
|
||
| Financial Instruments [Line Items] | ||
| Cost | 5,000 | 5,000 |
| Fair Value | 5,000 | 5,000 |
|
Mutual Funds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 19,635 | 17,459 |
| Unrealized Gain | 1,305 | 366 |
| Unrealized (Loss) | (71) | |
| Fair Value | 20,940 | 17,754 |
|
Total Financial Instruments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,716,680 | 3,057,919 |
| Unrealized Gain | 6,237 | 4,212 |
| Unrealized (Loss) | (5,579) | (4,446) |
| Fair Value | 2,717,338 | 3,057,685 |
|
Cash and Cash Equivalents
|
||
| Financial Instruments [Line Items] | ||
| Cost | 1,190,189 | 1,564,752 |
| Fair Value | 1,190,189 | 1,564,752 |
|
Short-term Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 1,326,369 | 1,295,053 |
| Unrealized Gain | 4,932 | 3,846 |
| Unrealized (Loss) | (803) | (968) |
| Fair Value | 1,330,498 | 1,297,931 |
|
Restricted Cash And Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 166,166 | 166,335 |
| Fair Value | 166,166 | 166,335 |
|
Other Assets
|
||
| Financial Instruments [Line Items] | ||
| Cost | 33,956 | 31,779 |
| Unrealized Gain | 1,305 | 366 |
| Unrealized (Loss) | (4,776) | (3,478) |
| Fair Value | 30,485 | 28,667 |
|
Total
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,716,680 | 3,057,919 |
| Unrealized Gain | 6,237 | 4,212 |
| Unrealized (Loss) | (5,579) | (4,446) |
| Fair Value | $ 2,717,338 | $ 3,057,685 |