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FINANCIAL INSTRUMENTS (Tables) | 6 Months Ended
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Jun. 30, 2012
Cash And Cash Equivalents And Investments From Continuing Operations | Cash and cash equivalents and investments from our continuing operations consist of the following as of June 30, 2012 and December 31, 2011:
|  | June 30, 2012 |
|  | (Dollars in thousands) Gross Unrealized |
|  | Cost |  |  | Gain |  |  | (Loss) |  |  | Fair Value |
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 107,304 |  |  | $ | — |  |  | $ | — |  |  | $ | 107,304 |
Money market funds |  |  | 101,636 |  |  |  | 372 |  |  |  | — |  |  |  | 102,008 |
Total cash and cash equivalents |  |  | 208,940 |  |  |  | 372 |  |  |  | — |  |  |  | 209,312 |
Short-term investments (available-for-sale): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury bills |  |  | 133,997 |  |  |  | — |  |  |  | (47 | ) |  |  | 133,950 |
U.S. Government Agencies |  |  | 26,669 |  |  |  | — |  |  |  | (3 | ) |  |  | 26,666 |
Total short-term investments (available-for-sale) |  |  | 160,666 |  |  |  | — |  |  |  | (50 | ) |  |  | 160,616 |
Total cash and cash equivalents and short-term investments |  | $ | 369,606 |  |  | $ | 372 |  |  | $ | (50 | ) |  | $ | 369,928 |
Long-term investments (available-for-sale): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds |  | $ | 11,150 |  |  | $ | — |  |  | $ | (735 | ) |  | $ | 10,415 |
|  | December 31, 2011 |
|  | (Dollars in thousands) Gross Unrealized |
|  | Cost |  |  | Gain |  |  | (Loss) |  |  | Fair Value |
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 157,317 |  |  | $ | — |  |  | $ | — |  |  | $ | 157,317 |
Money market funds |  |  | 122,827 |  |  |  | 448 |  |  |  | — |  |  |  | 123,275 |
Total cash and cash equivalents |  |  | 280,144 |  |  |  | 448 |  |  |  | — |  |  |  | 280,592 |
Short-term investments (available-for-sale): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury bills |  |  | 133,648 |  |  |  | 31 |  |  |  | (5 | ) |  |  | 133,674 |
U.S. Government Agencies |  |  | 26,962 |  |  |  | — |  |  |  | (29 | ) |  |  | 26,933 |
Total short-term investments (available-for-sale) |  |  | 160,610 |  |  |  | 31 |  |  |  | (34 | ) |  |  | 160,607 |
Total cash and cash equivalents and short-term investments |  | $ | 440,754 |  |  | $ | 479 |  |  | $ | (34 | ) |  | $ | 441,199 |
Long-term investments (available-for-sale): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds |  | $ | 11,150 |  |  | $ | — |  |  | $ | (735 | ) |  | $ | 10,415 |
Investments Measured At Fair Value On A Recurring Basis | Investments measured at fair value on a recurring basis subject to the disclosure requirements issued by FASB ASC Topic 820 – Fair Value Measurements at June 30, 2012 and December 31, 2011 were as follows:
|  | As of June 30, 2012 |
|  | (Dollars in thousands) |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Municipal bonds |  | $ | — |  |  | $ | — |  |  | $ | 10,415 |  |  | $ | 10,415 |
U.S. Treasury bills |  |  | 133,950 |  |  |  | — |  |  |  | — |  |  |  | 133,950 |
U.S. Government Agencies |  |  | 26,666 |  |  |  | — |  |  |  | — |  |  |  | 26,666 |
Totals |  | $ | 160,616 |  |  | $ | — |  |  | $ | 10,415 |  |  | $ | 171,031 |
|  | As of December 31, 2011 |
|  | (Dollars in thousands) |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Municipal bonds |  | $ | — |  |  | $ | — |  |  | $ | 10,415 |  |  | $ | 10,415 |
U.S. Treasury bills |  |  | 133,674 |  |  |  | — |  |  |  | — |  |  |  | 133,674 |
U.S. Government Agencies |  |  | 26,933 |  |  |  | — |  |  |  | — |  |  |  | 26,933 |
Totals |  | $ | 160,607 |  |  | $ | — |  |  | $ | 10,415 |  |  | $ | 171,022 |
Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3) | The following table presents a rollforward of our assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as defined in FASB ASC Topic 820 for the year to date ended June 30, 2012:
|  | (Dollars in thousands) |
Balance at December 31, 2011 |  | $ | 10,415 |
Unrealized loss |  |  | — |
Balance at June 30, 2012 |  | $ | 10,415 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 6 -Footnote 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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