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|---|---|---|
 0000826675-22-000013-index-headers.html | 2022-05-02 15:16:32 | |
| 0000826675-22-000013-index.html | 2022-05-02 15:16:32 | |
| 0000826675-22-000013.txt | 2022-05-02 15:16:32 | |
 0000826675-22-000013-xbrl.zip | 513402 | 2022-05-02 15:16:32 |
| a1q22ex-311ceocertification.htm | 10725 | 2022-05-02 15:16:32 |
| a1q22ex-312cfocertification.htm | 10740 | 2022-05-02 15:16:32 |
| a1q22ex-321soxcertification.htm | 8070 | 2022-05-02 15:16:32 |
| dx-20220331.htm | 2114701 | 2022-05-02 15:16:32 |
| dx-20220331.xsd | 28051 | 2022-05-02 15:16:32 |
| dx-20220331_cal.xml | 47815 | 2022-05-02 15:16:32 |
| dx-20220331_def.xml | 316506 | 2022-05-02 15:16:32 |
 dx-20220331_g1.jpg | 120388 | 2022-05-02 15:16:32 |
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 dx-20220331_g3.jpg | 95951 | 2022-05-02 15:16:32 |
| dx-20220331_htm.xml | 1756682 | 2022-05-02 15:16:32 |
| dx-20220331_lab.xml | 497836 | 2022-05-02 15:16:32 |
| dx-20220331_pre.xml | 380348 | 2022-05-02 15:16:32 |
| FilingSummary.xml | 27428 | 2022-05-02 15:16:32 |
| Financial_Report.xlsx | 83591 | 2022-05-02 15:16:32 |
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| R1.htm | 62280 | 2022-05-02 15:16:32 |
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| R27.htm | 20924 | 2022-05-02 15:16:32 |
| R28.htm | 11715 | 2022-05-02 15:16:32 |
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| R31.htm | 19626 | 2022-05-02 15:16:32 |
| R32.htm | 20216 | 2022-05-02 15:16:32 |
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| R8.htm | 19041 | 2022-05-02 15:16:32 |
| R9.htm | 126591 | 2022-05-02 15:16:32 |
| report.css | 2767 | 2022-05-02 15:16:32 |
| Show.js | 1085 | 2022-05-02 15:16:32 |