XML 35 R22.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Borrowings under Repurchase Agreements (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Repurchase Agreements [Abstract] |
Schedule of Repurchase Agreements [Table Text Block] | The following table details the Company's outstanding borrowings under repurchase agreements as of March 31, 2016 and December 31, 2015:
|  | March 31, 2016 |  | December 31, 2015
|  |  |  | Weighted Average |  |  |  | Weighted Average
Remaining Days to Maturity |  | Borrowings Outstanding |  | Interest Rate |  | Remaining Days to Maturity |  | Borrowings Outstanding |  | Interest Rate |  | Remaining Days to Maturity
|  | (In thousands) |  |  |  |  |  |  |  |  |  |
30 days or less |  | $ | 537,508 |  |  | 0.63 | % |  | 15 |  |  | $ | 666,124 |  |  | 0.52 | % |  | 14 |
31-60 days |  | 268,670 |  |  | 0.67 |  |  | 43 |  |  | 336,350 |  |  | 0.53 |  |  | 45 |
61-90 days |  | 292,395 |  |  | 0.71 |  |  | 74 |  |  | 89,142 |  |  | 0.70 |  |  | 74 |
91-120 days |  | — |  |  | — |  |  | — |  |  | 131,103 |  |  | 0.53 |  |  | 106 |
151-180 days |  | 35,268 |  |  | 0.82 |  |  | 167 |  |  | — |  |  | — |  |  | — |
Total |  | $ | 1,133,841 |  |  | 0.66 | % |  | 42 |  |  | $ | 1,222,719 |  |  | 0.54 | % |  | 37 |

X
- Definition Repurchase Agreements [Abstract] + References No definition available. + Details
Name: | earn_RepurchaseAgreementsAbstract
Namespace Prefix: | earn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for repurchase agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfRepurchaseAgreements
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration