XML 40 R29.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Revenue from Contracts with Customers Revenue from Contracts with Customers - By Product Type (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Revenue from Contracts with Customers - By Product Type [Line Items] |
Revenue from External Customers By Product Type [Table Text Block] | The following table presents Federated's revenue disaggregated by product type:
| Three Months Ended |  | Six Months Ended
(in thousands) | June 30, 2018 |  | June 30, 2018
Federated Funds | $ | 218,396 |  |  | $ | 443,213 |
Separate Accounts | 37,597 |  |  | 76,632 |
Total Revenue | $ | 255,993 |  |  | $ | 519,845 |

X
- Definition [Line Items] for Revenue from Contracts with Customers - By Product Type [Table] + References No definition available. + Details
Name: | fii_RevenuefromContractswithCustomersByProductTypeLineItems
Namespace Prefix: | fii_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenue from External Customers By Product Type [Table Text Block] + References No definition available. + Details
Name: | fii_RevenuefromExternalCustomersByProductTypeTableTextBlock
Namespace Prefix: | fii_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration