Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001055160-17-000012-index-headers.html | 2017-08-02 12:08:23 | |
| 0001055160-17-000012-index.html | 2017-08-02 12:08:23 | |
| 0001055160-17-000012.txt | 2017-08-02 12:08:23 | |
 0001055160-17-000012-xbrl.zip | 476525 | 2017-08-02 12:08:23 |
| exhibit101descriptioncompe.htm | 3693 | 2017-08-02 12:08:23 |
| exhibit311certificationofc.htm | 12657 | 2017-08-02 12:08:23 |
| exhibit312certificationofc.htm | 12657 | 2017-08-02 12:08:23 |
| exhibit313certificationofc.htm | 12245 | 2017-08-02 12:08:23 |
| exhibit321certificationofc.htm | 7634 | 2017-08-02 12:08:23 |
| exhibit322certificationofc.htm | 7634 | 2017-08-02 12:08:23 |
| exhibit323certificationofc.htm | 7772 | 2017-08-02 12:08:23 |
| FilingSummary.xml | 51926 | 2017-08-02 12:08:23 |
| Financial_Report.xlsx | 155201 | 2017-08-02 12:08:23 |
| mfa-06302017x10q.htm | 4572456 | 2017-08-02 12:08:23 |
| mfa-20170630.xml | 5567358 | 2017-08-02 12:08:23 |
| mfa-20170630.xsd | 99078 | 2017-08-02 12:08:23 |
| mfa-20170630_cal.xml | 131796 | 2017-08-02 12:08:23 |
| mfa-20170630_def.xml | 561334 | 2017-08-02 12:08:23 |
| mfa-20170630_lab.xml | 1237186 | 2017-08-02 12:08:23 |
| mfa-20170630_pre.xml | 750823 | 2017-08-02 12:08:23 |
| R1.htm | 22396 | 2017-08-02 12:08:23 |
| R10.htm | 101156 | 2017-08-02 12:08:23 |
| R11.htm | 531804 | 2017-08-02 12:08:23 |
| R12.htm | 122795 | 2017-08-02 12:08:23 |
| R13.htm | 220692 | 2017-08-02 12:08:23 |
| R14.htm | 175907 | 2017-08-02 12:08:23 |
| R15.htm | 154413 | 2017-08-02 12:08:23 |
| R16.htm | 109429 | 2017-08-02 12:08:23 |
| R17.htm | 7424 | 2017-08-02 12:08:23 |
| R18.htm | 21860 | 2017-08-02 12:08:23 |
| R19.htm | 14533 | 2017-08-02 12:08:23 |
| R2.htm | 74488 | 2017-08-02 12:08:23 |
| R20.htm | 161856 | 2017-08-02 12:08:23 |
| R21.htm | 43853 | 2017-08-02 12:08:23 |
| R22.htm | 81928 | 2017-08-02 12:08:23 |
| R23.htm | 355549 | 2017-08-02 12:08:23 |
| R24.htm | 26420 | 2017-08-02 12:08:23 |
| R25.htm | 147607 | 2017-08-02 12:08:23 |
| R26.htm | 526415 | 2017-08-02 12:08:23 |
| R27.htm | 117912 | 2017-08-02 12:08:23 |
| R28.htm | 216927 | 2017-08-02 12:08:23 |
| R29.htm | 177283 | 2017-08-02 12:08:23 |
| R3.htm | 36266 | 2017-08-02 12:08:23 |
| R30.htm | 155150 | 2017-08-02 12:08:23 |
| R31.htm | 110197 | 2017-08-02 12:08:23 |
| R32.htm | 21150 | 2017-08-02 12:08:23 |
| R33.htm | 153237 | 2017-08-02 12:08:23 |
| R34.htm | 43941 | 2017-08-02 12:08:23 |
| R35.htm | 61223 | 2017-08-02 12:08:23 |
| R36.htm | 341654 | 2017-08-02 12:08:23 |
| R37.htm | 6334 | 2017-08-02 12:08:23 |
| R38.htm | 5683 | 2017-08-02 12:08:23 |
| R39.htm | 8402 | 2017-08-02 12:08:23 |
| R4.htm | 71785 | 2017-08-02 12:08:23 |
| R40.htm | 4944 | 2017-08-02 12:08:23 |
| R41.htm | 8829 | 2017-08-02 12:08:23 |
| R42.htm | 5744 | 2017-08-02 12:08:23 |
| R43.htm | 12255 | 2017-08-02 12:08:23 |
| R44.htm | 9366 | 2017-08-02 12:08:23 |
| R45.htm | 85284 | 2017-08-02 12:08:23 |
| R46.htm | 180150 | 2017-08-02 12:08:23 |
| R47.htm | 15968 | 2017-08-02 12:08:23 |
| R48.htm | 8172 | 2017-08-02 12:08:23 |
| R49.htm | 25157 | 2017-08-02 12:08:23 |
| R5.htm | 30431 | 2017-08-02 12:08:23 |
| R50.htm | 15774 | 2017-08-02 12:08:23 |
| R51.htm | 10036 | 2017-08-02 12:08:23 |
| R52.htm | 11938 | 2017-08-02 12:08:23 |
| R53.htm | 19481 | 2017-08-02 12:08:23 |
| R54.htm | 32967 | 2017-08-02 12:08:23 |
| R55.htm | 16026 | 2017-08-02 12:08:23 |
| R56.htm | 13821 | 2017-08-02 12:08:23 |
| R57.htm | 20293 | 2017-08-02 12:08:23 |
| R58.htm | 104052 | 2017-08-02 12:08:23 |
| R59.htm | 40586 | 2017-08-02 12:08:23 |
| R6.htm | 69289 | 2017-08-02 12:08:23 |
| R60.htm | 90120 | 2017-08-02 12:08:23 |
| R61.htm | 28053 | 2017-08-02 12:08:23 |
| R62.htm | 13779 | 2017-08-02 12:08:23 |
| R63.htm | 39804 | 2017-08-02 12:08:23 |
| R64.htm | 60493 | 2017-08-02 12:08:23 |
| R65.htm | 92038 | 2017-08-02 12:08:23 |
| R66.htm | 13744 | 2017-08-02 12:08:23 |
| R67.htm | 16449 | 2017-08-02 12:08:23 |
| R68.htm | 12737 | 2017-08-02 12:08:23 |
| R69.htm | 5514 | 2017-08-02 12:08:23 |
| R7.htm | 9406 | 2017-08-02 12:08:23 |
| R70.htm | 11434 | 2017-08-02 12:08:23 |
| R71.htm | 64691 | 2017-08-02 12:08:23 |
| R72.htm | 11260 | 2017-08-02 12:08:23 |
| R73.htm | 25196 | 2017-08-02 12:08:23 |
| R74.htm | 21571 | 2017-08-02 12:08:23 |
| R75.htm | 29236 | 2017-08-02 12:08:23 |
| R76.htm | 48237 | 2017-08-02 12:08:23 |
| R77.htm | 12757 | 2017-08-02 12:08:23 |
| R78.htm | 34284 | 2017-08-02 12:08:23 |
| R79.htm | 69838 | 2017-08-02 12:08:23 |
| R8.htm | 91583 | 2017-08-02 12:08:23 |
| R80.htm | 26838 | 2017-08-02 12:08:23 |
| R81.htm | 42414 | 2017-08-02 12:08:23 |
| R82.htm | 19923 | 2017-08-02 12:08:23 |
| R83.htm | 18035 | 2017-08-02 12:08:23 |
| R84.htm | 67150 | 2017-08-02 12:08:23 |
| R85.htm | 66207 | 2017-08-02 12:08:23 |
| R9.htm | 6494 | 2017-08-02 12:08:23 |
| report.css | 2768 | 2017-08-02 12:08:23 |
| Show.js | 1411 | 2017-08-02 12:08:23 |