XML 23 R12.htm IDEA: XBRL DOCUMENT
v3.19.1

Investments | 3 Months Ended
--- | ---
Apr. 30, 2019
Investments, Debt and Equity Securities [Abstract] |
Investments | Investments Debt Securities As of April 30, 2019, debt securities consisted of the following (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Aggregate Fair Value
U.S. treasury securities | $ | 484,846 |  |  | $ | 214 |  |  | $ | (79 | ) |  | $ | 484,981 |
U.S. agency obligations | 188,057 |  |  | 117 |  |  | (61 | ) |  | 188,113 |
Corporate bonds | 373,946 |  |  | 637 |  |  | (121 | ) |  | 374,462 |
Commercial paper | 282,527 |  |  | 2 |  |  | — |  |  | 282,529 |
| $ | 1,329,376 |  |  | $ | 970 |  |  | $ | (261 | ) |  | $ | 1,330,085 |
Included in cash and cash equivalents | $ | 219,944 |  |  | $ | — |  |  | $ | — |  |  | $ | 219,944 |
Included in marketable securities | $ | 1,109,432 |  |  | $ | 970 |  |  | $ | (261 | ) |  | $ | 1,110,141 |
As of January 31, 2019, debt securities consisted of the following (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Aggregate Fair Value
U.S. treasury securities | $ | 396,347 |  |  | $ | 61 |  |  | $ | (178 | ) |  | $ | 396,230 |
U.S. agency obligations | 241,914 |  |  | 73 |  |  | (151 | ) |  | 241,836 |
Corporate bonds | 419,784 |  |  | 336 |  |  | (352 | ) |  | 419,768 |
Commercial paper | 254,175 |  |  | — |  |  | (2 | ) |  | 254,173 |
| $ | 1,312,220 |  |  | $ | 470 |  |  | $ | (683 | ) |  | $ | 1,312,007 |
Included in cash and cash equivalents | $ | 216,270 |  |  | $ | — |  |  | $ | — |  |  | $ | 216,270 |
Included in marketable securities | $ | 1,095,950 |  |  | $ | 470 |  |  | $ | (683 | ) |  | $ | 1,095,737 |
We do not believe the unrealized losses represent other-than-temporary impairments based on our evaluation of available evidence as of April 30, 2019, which includes an assessment of whether it is more likely than not that we will be required to sell the investment before recovery of the investment's amortized cost basis. The unrealized losses on debt securities that have been in a net loss position for 12 months or more were not material as of April 30, 2019. We classify our debt securities as available-for-sale at the time of purchase and reevaluate such classification as of each balance sheet date. We consider all debt securities as available for use in current operations, including those with maturity dates beyond one year, and therefore classify these securities as current assets in the accompanying condensed consolidated balance sheets. Debt securities included in Marketable securities on the condensed consolidated balance sheets consist of securities with original maturities at the time of purchase greater than three months, and the remainder of the securities is included in Cash and cash equivalents. There were no sales of debt securities during the three months ended April 30, 2019. We sold $27 million of our debt securities during the three months ended April 30, 2018. The realized gains and losses from the sales were immaterial. Equity Investments Money market funds and marketable equity investments are investments with readily determinable fair values. Non-marketable equity investments consist of investments in privately held companies without readily determinable fair values. Equity investments consisted of the following (in thousands):
| Condensed Consolidated Balance Sheets Location |  | April 30, 2019 |  | January 31, 2019
Money market funds | Cash and cash equivalents |  | $ | 396,940 |  |  | $ | 237,071 |
Marketable equity investments | Marketable securities |  | — |  |  | 44,127 |
Non-marketable equity investments | Other assets |  | 39,125 |  |  | 36,925 |
|  |  | $ | 436,065 |  |  | $ | 318,123 |
We sold $51 million of our marketable equity investments during the three months ended April 30, 2019, with a corresponding gain recognized of $7 million. There were no sales of marketable equity investments during the three months ended April 30, 2018. No material adjustments were made to the carrying value of the non-marketable equity investments as measured under the measurement alternative during the three months ended April 30, 2019 and 2018.

X
- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -URI http://asc.fasb.org/topic&trid=2122426 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
Name: | us-gaap_CashCashEquivalentsAndMarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration