|
Summary of Investments (Detail) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2013
|
Jun. 24, 2012
|
|---|---|---|
| Financial Instruments [Line Items] | ||
| Fair Value | $ 1,334,746 | $ 1,297,931 |
|
Cash
|
||
| Financial Instruments [Line Items] | ||
| Cost | 438,813 | 240,841 |
| Fair Value | 438,813 | 240,841 |
|
Fixed Income Money Market Funds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 725,311 | 1,318,812 |
| Fair Value | 725,311 | 1,318,812 |
|
Municipal Notes And Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 268,390 | 321,001 |
| Unrealized Gain | 805 | 1,574 |
| Unrealized (Loss) | (449) | (8) |
| Fair Value | 268,746 | 322,567 |
|
US Treasury and Agencies
|
||
| Financial Instruments [Line Items] | ||
| Cost | 155,648 | 137,516 |
| Unrealized Gain | 18 | 43 |
| Unrealized (Loss) | (373) | (113) |
| Fair Value | 155,293 | 137,446 |
|
Government-Sponsored Enterprises
|
||
| Financial Instruments [Line Items] | ||
| Cost | 54,835 | 123,269 |
| Unrealized Gain | 65 | 67 |
| Unrealized (Loss) | (95) | (68) |
| Fair Value | 54,805 | 123,268 |
|
Foreign Governments Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 24,950 | 6,315 |
| Unrealized Gain | 47 | 43 |
| Unrealized (Loss) | (25) | |
| Fair Value | 24,972 | 6,358 |
|
Corporate Notes And Bonds
|
||
| Financial Instruments [Line Items] | ||
| Cost | 861,109 | 767,847 |
| Unrealized Gain | 1,328 | 1,443 |
| Unrealized (Loss) | (1,945) | (389) |
| Fair Value | 860,492 | 768,901 |
|
Mortgage Backed Securities - Residential
|
||
| Financial Instruments [Line Items] | ||
| Cost | 27,618 | 25,857 |
| Unrealized Gain | 29 | 121 |
| Unrealized (Loss) | (282) | (6) |
| Fair Value | 27,365 | 25,972 |
|
Mortgage Backed Securities - Commercial
|
||
| Financial Instruments [Line Items] | ||
| Cost | 108,204 | 84,682 |
| Unrealized Gain | 426 | 555 |
| Unrealized (Loss) | (672) | (384) |
| Fair Value | 107,958 | 84,853 |
|
Total Cash And Short Term Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,664,878 | 3,026,140 |
| Unrealized Gain | 2,718 | 3,846 |
| Unrealized (Loss) | (3,841) | (968) |
| Fair Value | 2,663,755 | 3,029,018 |
|
Publicly Traded Equity Securities
|
||
| Financial Instruments [Line Items] | ||
| Cost | 5,610 | 9,320 |
| Unrealized Gain | 1,486 | |
| Unrealized (Loss) | (3,407) | |
| Fair Value | 7,096 | 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 | 16,611 | 17,459 |
| Unrealized Gain | 1,619 | 366 |
| Unrealized (Loss) | (14) | (71) |
| Fair Value | 18,216 | 17,754 |
|
Total Financial Instruments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,692,099 | 3,057,919 |
| Unrealized Gain | 5,823 | 4,212 |
| Unrealized (Loss) | (3,855) | (4,446) |
| Fair Value | 2,694,067 | 3,057,685 |
|
Cash and Cash Equivalents
|
||
| Financial Instruments [Line Items] | ||
| Cost | 1,162,473 | 1,564,752 |
| Fair Value | 1,162,473 | 1,564,752 |
|
Short-term Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 1,335,868 | 1,295,053 |
| Unrealized Gain | 2,718 | 3,846 |
| Unrealized (Loss) | (3,841) | (968) |
| Fair Value | 1,334,745 | 1,297,931 |
|
Restricted Cash And Investments
|
||
| Financial Instruments [Line Items] | ||
| Cost | 166,536 | 166,335 |
| Fair Value | 166,536 | 166,335 |
|
Other Assets
|
||
| Financial Instruments [Line Items] | ||
| Cost | 27,222 | 31,779 |
| Unrealized Gain | 3,105 | 366 |
| Unrealized (Loss) | (14) | (3,478) |
| Fair Value | 30,313 | 28,667 |
|
Total
|
||
| Financial Instruments [Line Items] | ||
| Cost | 2,692,099 | 3,057,919 |
| Unrealized Gain | 5,823 | 4,212 |
| Unrealized (Loss) | (3,855) | (4,446) |
| Fair Value | $ 2,694,067 | $ 3,057,685 |