Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001055160-18-000012-index-headers.html | 2018-08-02 11:29:27 | |
| 0001055160-18-000012-index.html | 2018-08-02 11:29:27 | |
| 0001055160-18-000012.txt | 2018-08-02 11:29:27 | |
 0001055160-18-000012-xbrl.zip | 490947 | 2018-08-02 11:29:27 |
| exhibit311certificationofc.htm | 13159 | 2018-08-02 11:29:27 |
| exhibit312certificationofc.htm | 12245 | 2018-08-02 11:29:27 |
| exhibit321certificationofc.htm | 7644 | 2018-08-02 11:29:27 |
| exhibit322certificationofc.htm | 7772 | 2018-08-02 11:29:27 |
| FilingSummary.xml | 62562 | 2018-08-02 11:29:27 |
| Financial_Report.xlsx | 162925 | 2018-08-02 11:29:27 |
| mfa-06302018x10q.htm | 4557086 | 2018-08-02 11:29:27 |
| mfa-20180630.xml | 5608855 | 2018-08-02 11:29:27 |
| mfa-20180630.xsd | 105015 | 2018-08-02 11:29:27 |
| mfa-20180630_cal.xml | 134800 | 2018-08-02 11:29:27 |
| mfa-20180630_def.xml | 609263 | 2018-08-02 11:29:27 |
| mfa-20180630_lab.xml | 1211823 | 2018-08-02 11:29:27 |
| mfa-20180630_pre.xml | 791057 | 2018-08-02 11:29:27 |
| R1.htm | 22592 | 2018-08-02 11:29:27 |
| R10.htm | 116257 | 2018-08-02 11:29:27 |
| R11.htm | 562629 | 2018-08-02 11:29:27 |
| R12.htm | 142065 | 2018-08-02 11:29:27 |
| R13.htm | 199330 | 2018-08-02 11:29:27 |
| R14.htm | 169408 | 2018-08-02 11:29:27 |
| R15.htm | 139039 | 2018-08-02 11:29:27 |
| R16.htm | 108303 | 2018-08-02 11:29:27 |
| R17.htm | 25312 | 2018-08-02 11:29:27 |
| R18.htm | 12813 | 2018-08-02 11:29:27 |
| R19.htm | 162090 | 2018-08-02 11:29:27 |
| R2.htm | 74547 | 2018-08-02 11:29:27 |
| R20.htm | 43621 | 2018-08-02 11:29:27 |
| R21.htm | 74670 | 2018-08-02 11:29:27 |
| R22.htm | 331017 | 2018-08-02 11:29:27 |
| R23.htm | 44195 | 2018-08-02 11:29:27 |
| R24.htm | 160504 | 2018-08-02 11:29:27 |
| R25.htm | 547090 | 2018-08-02 11:29:27 |
| R26.htm | 135489 | 2018-08-02 11:29:27 |
| R27.htm | 195706 | 2018-08-02 11:29:27 |
| R28.htm | 173387 | 2018-08-02 11:29:27 |
| R29.htm | 139735 | 2018-08-02 11:29:27 |
| R3.htm | 35413 | 2018-08-02 11:29:27 |
| R30.htm | 109392 | 2018-08-02 11:29:27 |
| R31.htm | 21976 | 2018-08-02 11:29:27 |
| R32.htm | 153628 | 2018-08-02 11:29:27 |
| R33.htm | 43634 | 2018-08-02 11:29:27 |
| R34.htm | 57957 | 2018-08-02 11:29:27 |
| R35.htm | 309312 | 2018-08-02 11:29:27 |
| R36.htm | 26161 | 2018-08-02 11:29:27 |
| R37.htm | 11861 | 2018-08-02 11:29:27 |
| R38.htm | 5684 | 2018-08-02 11:29:27 |
| R39.htm | 11325 | 2018-08-02 11:29:27 |
| R4.htm | 73614 | 2018-08-02 11:29:27 |
| R40.htm | 4645 | 2018-08-02 11:29:27 |
| R41.htm | 8798 | 2018-08-02 11:29:27 |
| R42.htm | 5745 | 2018-08-02 11:29:27 |
| R43.htm | 12166 | 2018-08-02 11:29:27 |
| R44.htm | 9643 | 2018-08-02 11:29:27 |
| R45.htm | 8942 | 2018-08-02 11:29:27 |
| R46.htm | 20490 | 2018-08-02 11:29:27 |
| R47.htm | 85276 | 2018-08-02 11:29:27 |
| R48.htm | 14771 | 2018-08-02 11:29:27 |
| R49.htm | 68211 | 2018-08-02 11:29:27 |
| R5.htm | 32057 | 2018-08-02 11:29:27 |
| R50.htm | 11493 | 2018-08-02 11:29:27 |
| R51.htm | 10687 | 2018-08-02 11:29:27 |
| R52.htm | 33263 | 2018-08-02 11:29:27 |
| R53.htm | 21637 | 2018-08-02 11:29:27 |
| R54.htm | 26722 | 2018-08-02 11:29:27 |
| R55.htm | 23274 | 2018-08-02 11:29:27 |
| R56.htm | 4166 | 2018-08-02 11:29:27 |
| R57.htm | 24455 | 2018-08-02 11:29:27 |
| R58.htm | 11728 | 2018-08-02 11:29:27 |
| R59.htm | 9236 | 2018-08-02 11:29:27 |
| R6.htm | 63214 | 2018-08-02 11:29:27 |
| R60.htm | 13914 | 2018-08-02 11:29:27 |
| R61.htm | 24493 | 2018-08-02 11:29:27 |
| R62.htm | 11848 | 2018-08-02 11:29:27 |
| R63.htm | 11476 | 2018-08-02 11:29:27 |
| R64.htm | 20042 | 2018-08-02 11:29:27 |
| R65.htm | 32449 | 2018-08-02 11:29:27 |
| R66.htm | 15609 | 2018-08-02 11:29:27 |
| R67.htm | 19934 | 2018-08-02 11:29:27 |
| R68.htm | 83259 | 2018-08-02 11:29:27 |
| R69.htm | 38293 | 2018-08-02 11:29:27 |
| R7.htm | 9174 | 2018-08-02 11:29:27 |
| R70.htm | 88308 | 2018-08-02 11:29:27 |
| R71.htm | 25340 | 2018-08-02 11:29:27 |
| R72.htm | 39235 | 2018-08-02 11:29:27 |
| R73.htm | 60270 | 2018-08-02 11:29:27 |
| R74.htm | 88525 | 2018-08-02 11:29:27 |
| R75.htm | 18067 | 2018-08-02 11:29:27 |
| R76.htm | 14239 | 2018-08-02 11:29:27 |
| R77.htm | 12742 | 2018-08-02 11:29:27 |
| R78.htm | 6349 | 2018-08-02 11:29:27 |
| R79.htm | 14984 | 2018-08-02 11:29:27 |
| R8.htm | 93305 | 2018-08-02 11:29:27 |
| R80.htm | 64623 | 2018-08-02 11:29:27 |
| R81.htm | 10510 | 2018-08-02 11:29:27 |
| R82.htm | 25975 | 2018-08-02 11:29:27 |
| R83.htm | 22036 | 2018-08-02 11:29:27 |
| R84.htm | 26423 | 2018-08-02 11:29:27 |
| R85.htm | 32943 | 2018-08-02 11:29:27 |
| R86.htm | 10497 | 2018-08-02 11:29:27 |
| R87.htm | 34275 | 2018-08-02 11:29:27 |
| R88.htm | 18945 | 2018-08-02 11:29:27 |
| R89.htm | 72526 | 2018-08-02 11:29:27 |
| R9.htm | 6663 | 2018-08-02 11:29:27 |
| R90.htm | 33850 | 2018-08-02 11:29:27 |
| R91.htm | 53749 | 2018-08-02 11:29:27 |
| R92.htm | 74202 | 2018-08-02 11:29:27 |
| R93.htm | 33171 | 2018-08-02 11:29:27 |
| R94.htm | 33197 | 2018-08-02 11:29:27 |
| report.css | 2768 | 2018-08-02 11:29:27 |
| Show.js | 1411 | 2018-08-02 11:29:27 |