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市场证券 - 摊销成本和公允价值（详情） - USD（$） 数千美元 |
Jun. 30, 2018 |
Jun. 30, 2017 |
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|---|---|---|---|---|
| 市场证券 | ||||
| 摊销成本 | $ 2,366,008 | $ 2,674,437 | ||
| Gross Unrealized Gains | 167. | 712. | ||
| Gross Unrealized Losses | (14,168) | (5,225) | ||
| 公允价值 | 2,352,007 | 2,669,924 | ||
| 补充：时间存款 | [1] | 54,537 | 39,389. | |
| Less: Cash equivalents, Amortized Cost | 930,608 | 845,639. | ||
| 少：现金等价物，毛额未实现的收益 | 0. | 0. | ||
| Less: Cash equivalents, Gross Unrealized Losses | 0. | (15) | ||
| 少：现金等价物，公允价值 | 930,608 | 845,624. | ||
| 可营销证券，摊销成本 | 1,489,937 | 1,868,187 | ||
| 可营销证券，毛额未实现的收益 | 167. | 712. | ||
| 可销售证券，毛额未实现的损失 | (14,168) | (5,210) | ||
| 市场证券，公允价值 | 1,475,936 | 1,863,689 | ||
| 公司债务证券 | ||||
| 市场证券 | ||||
| 摊销成本 | 747,763 | 1,120,548 | ||
| Gross Unrealized Gains | 148. | 598 | ||
| Gross Unrealized Losses | (7,508) | (1,951) | ||
| 公允价值 | 740,403 | 1,119,195 | ||
| 金钱市场资金和其他 | ||||
| 市场证券 | ||||
| 摊销成本 | 863,115 | 616,039 | ||
| Gross Unrealized Gains | 0. | 0. | ||
| Gross Unrealized Losses | 0. | 0. | ||
| 公允价值 | 863,115 | 616,039 | ||
| 主权证券 | ||||
| 市场证券 | ||||
| 摊销成本 | 17,293 | 52,621. | ||
| Gross Unrealized Gains | 0. | 0. | ||
| Gross Unrealized Losses | (151) | （56） | ||
| 公允价值 | 17,142 | 52.,565 | ||
| U.S. Government agency securities | ||||
| 市场证券 | ||||
| 摊销成本 | 326,508 | 510,553 | ||
| Gross Unrealized Gains | 16. | 62. | ||
| Gross Unrealized Losses | (2,827) | （1,789） | ||
| 公允价值 | 323,697 | 508,826. | ||
| 美国财政证券 | ||||
| 市场证券 | ||||
| 摊销成本 | 411,329. | 374,676 | ||
| Gross Unrealized Gains | 3. | 52. | ||
| Gross Unrealized Losses | （3,682） | （1,429） | ||
| 公允价值 | $ 407,650 | $ 373,299 | ||
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