|
Note 2. Fair Value Measurements (Details) (USD $)
In Thousands
|
Jun. 30, 2011
|
Jun. 30, 2010
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Cash |
$ 165,856
|
|
$ 153,595
|
|
| Time Deposits |
65,402
|
[1] |
38,407
|
[1] |
|
US Treasury Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
58,896
|
|
42,293
|
|
|
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
52,396
|
|
35,194
|
|
|
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
6,500
|
|
7,099
|
|
|
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
U.S. Government Agency Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
320,183
|
|
250,280
|
|
|
U.S. Government Agency Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
320,183
|
|
243,144
|
|
|
U.S. Government Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
7,136
|
|
|
U.S. Government Agency Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Municipal Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
38,957
|
|
55,459
|
|
|
Municipal Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Municipal Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
38,957
|
|
55,459
|
|
|
Municipal Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Corporate Debt Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
875,385
|
|
603,156
|
|
|
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
875,385
|
|
603,156
|
|
|
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Money Market and Other [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
481,770
|
|
334,674
|
|
|
Money Market and Other [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
481,770
|
|
334,663
|
|
|
Money Market and Other [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
11
|
|
|
Money Market and Other [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Sovereign Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
32,086
|
|
39,355
|
|
|
Sovereign Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
14,696
|
|
10,500
|
|
|
Sovereign Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
17,390
|
|
28,855
|
|
|
Sovereign Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
|
0
|
|
|
Auction Rate Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
|
|
16,825
|
|
|
Auction Rate Securities [Member] | Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
|
|
0
|
|
|
Auction Rate Securities [Member] | Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
|
|
0
|
|
|
Auction Rate Securities [Member] | Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
|
|
16,825
|
|
|
Estimate of Fair Value, Fair Value Disclosure [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
1,807,277
|
[2] |
1,342,042
|
[3] |
| EDSP money market and other |
1,806
|
|
4
|
|
| EDSP mutual funds |
126,227
|
|
109,226
|
|
| Executive Deferred Savings Plan |
128,033
|
|
109,230
|
|
| Derivative assets |
1,970
|
|
296
|
|
| Total financial assets |
1,937,280
|
[2] |
1,451,568
|
[3] |
| Derivative liabilities |
(2,127)
|
|
(5,824)
|
|
| Total financial liabilities |
(2,127)
|
|
(5,824)
|
|
|
Fair Value, Inputs, Level 1 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
869,045
|
[2] |
623,501
|
[3] |
| EDSP money market and other |
1,806
|
|
4
|
|
| EDSP mutual funds |
95,971
|
|
85,254
|
|
| Executive Deferred Savings Plan |
97,777
|
|
85,258
|
|
| Derivative assets |
0
|
|
0
|
|
| Total financial assets |
966,822
|
[2] |
708,759
|
[3] |
| Derivative liabilities |
0
|
|
0
|
|
| Total financial liabilities |
0
|
|
0
|
|
|
Fair Value, Inputs, Level 2 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
938,232
|
[2] |
701,716
|
[3] |
| EDSP money market and other |
0
|
|
0
|
|
| EDSP mutual funds |
30,256
|
|
23,972
|
|
| Executive Deferred Savings Plan |
30,256
|
|
23,972
|
|
| Derivative assets |
1,970
|
|
296
|
|
| Total financial assets |
970,458
|
[2] |
725,984
|
[3] |
| Derivative liabilities |
(2,127)
|
|
(5,824)
|
|
| Total financial liabilities |
(2,127)
|
|
(5,824)
|
|
|
Fair Value, Inputs, Level 3 [Member]
|
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items] |
|
|
|
|
| Total marketable securities and cash equivalents |
0
|
[2] |
16,825
|
[3] |
| EDSP money market and other |
0
|
|
0
|
|
| EDSP mutual funds |
0
|
|
0
|
|
| Executive Deferred Savings Plan |
0
|
|
0
|
|
| Derivative assets |
0
|
|
0
|
|
| Total financial assets |
0
|
[2] |
16,825
|
[3] |
| Derivative liabilities |
0
|
|
0
|
|
| Total financial liabilities |
$ 0
|
|
$ 0
|
|
|
|
|