v2.4.0.8

Fair Value Measurements (Tables) | 6 Months Ended
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Sep. 30, 2014
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | Assets measured at fair value on a recurring basis at September 30, 2014 are as follows (amounts in thousands):
| Quoted Prices in Active Markets for Identical Instruments (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total Balance
Assets |  |  |  |  |  |  |
Money market mutual funds | $ | 95,464 |  |  | $ | — |  |  | $ | — |  |  | $ | 95,464 |
Corporate bonds and debt | — |  |  | 899,403 |  |  | 6,190 |  |  | 905,593 |
Time deposits (1) | — |  |  | 20,160 |  |  | — |  |  | 20,160 |
Government agency bonds | — |  |  | 666,208 |  |  | — |  |  | 666,208 |
Deposit accounts | — |  |  | 385,975 |  |  | — |  |  | 385,975 |
Municipal bonds | — |  |  | 41,161 |  |  | — |  |  | 41,161 |
Auction rate securities | — |  |  | — |  |  | 9,825 |  |  | 9,825 |
Total assets measured at fair value | $ | 95,464 |  |  | $ | 2,012,907 |  |  | $ | 16,015 |  |  | $ | 2,124,386 |
(1) Time deposits in various financial institutions with maturities greater than three months that will mature within one year. Assets measured at fair value on a recurring basis at March 31, 2014 are as follows (amounts in thousands):
| Quoted Prices in Active Markets for Identical Instruments (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total Balance
Assets |  |  |  |  |  |  |
Money market mutual funds | $ | 192,159 |  |  | $ | — |  |  | $ | — |  |  | $ | 192,159 |
Corporate bonds and debt | — |  |  | 937,776 |  |  | 6,190 |  |  | 943,966 |
Government agency bonds | — |  |  | 681,394 |  |  | — |  |  | 681,394 |
Deposit accounts | — |  |  | 274,444 |  |  | — |  |  | 274,444 |
Municipal bonds | — |  |  | 41,709 |  |  | — |  |  | 41,709 |
Auction rate securities | — |  |  | — |  |  | 9,825 |  |  | 9,825 |
Total assets measured at fair value | $ | 192,159 |  |  | $ | 1,935,323 |  |  | $ | 16,015 |  |  | $ | 2,143,497 |
Reconciliation of assets and liabilities measured at fair value on a recurring basis | The following tables present a reconciliation for all assets and liabilities measured at fair value on a recurring basis, excluding accrued interest components, using significant unobservable inputs (Level 3) for the year ended March 31, 2014 (amounts in thousands):
Year ended March 31, 2014 |  | Auction Rate Securities |  | Corporate Debt |  | Contingent Consideration |  | Total Gains (Losses)
Balance at March 31, 2013 |  | $ | 33,791 |  |  | $ | 6,190 |  |  | $ | (19,100 | ) |  | $ | — |
Total gains (losses) (realized and unrealized): |  |  |  |  |  |  |  |
Included in earnings |  | 1,101 |  |  | — |  |  | (1,370 | ) |  | (269 | )
Included in other comprehensive income |  | (332 | ) |  | — |  |  | — |  |  | (332 | )
Purchases, sales, issuances, and settlements, net |  | (24,735 | ) |  | — |  |  | 20,470 |  |  | — |
Balance at March 31, 2014 |  | $ | 9,825 |  |  | $ | 6,190 |  |  | $ | — |  |  | $ | (601 | )
Fair Value, by Balance Sheet Grouping | Assets measured at fair value on a recurring basis are presented/classified on the condensed consolidated balance sheets at September 30, 2014 as follows (amounts in thousands):
| Quoted Prices in Active Markets for Identical Instruments (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total Balance
Assets |  |  |  |  |  |  |
Cash and cash equivalents | $ | 95,464 |  |  | $ | 385,975 |  |  | $ | — |  |  | $ | 481,439 |
Short-term investments | — |  |  | 801,670 |  |  | — |  |  | 801,670 |
Long-term investments | — |  |  | 825,262 |  |  | 16,015 |  |  | 841,277 |
Total assets measured at fair value | $ | 95,464 |  |  | $ | 2,012,907 |  |  | $ | 16,015 |  |  | $ | 2,124,386 |
Assets measured at fair value on a recurring basis are presented/classified in the condensed consolidated balance sheets at March 31, 2014 as follows (amounts in thousands):
| Quoted Prices in Active Markets for Identical Instruments (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Total Balance
Assets |  |  |  |  |  |  |
Cash and cash equivalents | $ | 192,159 |  |  | $ | 274,444 |  |  | $ | — |  |  | $ | 466,603 |
Short-term investments | — |  |  | 878,182 |  |  | — |  |  | 878,182 |
Long-term investments | — |  |  | 782,697 |  |  | 16,015 |  |  | 798,712 |
Total assets measured at fair value | $ | 192,159 |  |  | $ | 1,935,323 |  |  | $ | 16,015 |  |  | $ | 2,143,497 |

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- Definition Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + 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 (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13467-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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 Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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