XML 58 R47.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Gains from Mortgage Banking Activities/Originations, Net (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Mortgage Banking [Abstract] |
Summary of Gains From Mortgage Banking Activities/Originations, Net | Gains from mortgage banking activities/originations, net consists of the following activity (in thousands):
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Loan originations related fees and sales premiums, net |  | $ | 17,817 |  |  | $ | 15,952 |
Fair value of expected net future cash flows from servicing recognized at commitment, net |  |  | 21,097 |  |  |  | 29,310 |
Gains from mortgage banking activities/originations, net |  | $ | 38,914 |  |  | $ | 45,262 |

X
- Definition Summary of gains from mortgage banking activities, net. + References No definition available. + Details
Name: | nmrk_SummaryOfGainsFromMortgageBankingActivitiesNetTableTextBlock
Namespace Prefix: | nmrk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_MortgageBankingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration