Debt	12 Months Ended
Dec. 31, 2017
Debt Disclosure [Abstract]
Debt Disclosure	Debt On June 5, 2017, Federated entered into the Credit Agreement, which amended and restated Federated's Prior Credit Agreement. The Credit Agreement refinanced $200 million available on the revolving credit facility and $178.5 million outstanding on the term loan facility under the Prior Credit Agreement, replacing both with a $375 million revolving credit facility which has an additional $200 million available via an optional increase (or accordion) feature. Federated had no borrowings under the previous revolving credit facility. The Credit Agreement does not include a term loan facility. The Credit Agreement, which expires on June 5, 2022, has no principal payment schedule, but instead requires that any outstanding principal be repaid by the expiration date. Federated, however, may elect to make discretionary principal payments prior to the expiration date. As of December 31, 2017, the amount outstanding under the revolving credit facility was $170 million and was recorded as Long-term debt on the Consolidated Balance Sheets. The interest rate was 2.486% as of December 31, 2017, which was calculated at LIBOR plus a spread. The commitment fee under the Credit Agreement currently is 0.125% per annum on the daily unused portion of each Lender's commitment. As of December 31, 2017, Federated has $205 million available for borrowings. As of December 31, 2016, the outstanding balance on the term loan facility under the Prior Credit Agreement was $191.3 million, which consisted of $25.5 million recorded in Short-term debt and $165.8 million recorded in Long-term debt. The interest rate was 1.745% as of December 31, 2016, which was calculated at LIBOR plus a spread. The Credit Agreement, similar to the Prior Credit Agreement, includes representations and warranties, affirmative and negative financial covenants, including an interest coverage ratio covenant and a leverage ratio covenant, reporting requirements and other non-financial covenants. Federated was in compliance with all covenants at and during the year ended December 31, 2017 (see the Liquidity and Capital Resources section of Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations). The Credit Agreement also has certain stated events of default and cross default provisions which would permit the lenders/counterparties to accelerate the repayment of debt outstanding if not cured within the applicable grace periods. The events of default generally include breaches of contract, failure to make required loan payments, insolvency, cessation of business, notice of lien or assessment, and other proceedings, whether voluntary or involuntary, that would require the repayment of amounts borrowed. The Credit Agreement also required certain subsidiaries to enter into a Second Amended and Restated Continuing Agreement of Guaranty and Suretyship to guarantee payment of all obligations incurred through the Credit Agreement.

Debt

On June 5, 2017, Federated entered into the Credit Agreement, which amended and restated Federated's Prior Credit Agreement. The Credit Agreement refinanced $200 million available on the revolving credit facility and $178.5 million outstanding on the term loan facility under the Prior Credit Agreement, replacing both with a $375 million revolving credit facility which has an additional $200 million available via an optional increase (or accordion) feature. Federated had no borrowings under the previous revolving credit facility. The Credit Agreement does not include a term loan facility.

The Credit Agreement, which expires on June 5, 2022, has no principal payment schedule, but instead requires that any outstanding principal be repaid by the expiration date. Federated, however, may elect to make discretionary principal payments prior to the expiration date. As of December 31, 2017, the amount outstanding under the revolving credit facility was $170 million and was recorded as Long-term debt on the Consolidated Balance Sheets. The interest rate was 2.486% as of December 31, 2017, which was calculated at LIBOR plus a spread. The commitment fee under the Credit Agreement currently is 0.125% per annum on the daily unused portion of each Lender's commitment. As of December 31, 2017, Federated has $205 million available for borrowings.

As of December 31, 2016, the outstanding balance on the term loan facility under the Prior Credit Agreement was $191.3 million, which consisted of $25.5 million recorded in Short-term debt and $165.8 million recorded in Long-term debt. The interest rate was 1.745% as of December 31, 2016, which was calculated at LIBOR plus a spread.

The Credit Agreement, similar to the Prior Credit Agreement, includes representations and warranties, affirmative and negative financial covenants, including an interest coverage ratio covenant and a leverage ratio covenant, reporting requirements and other non-financial covenants. Federated was in compliance with all covenants at and during the year ended December 31, 2017 (see the Liquidity and Capital Resources section of Item 7 - Management's Discussion and Analysis of Financial Condition and Results of Operations). The Credit Agreement also has certain stated events of default and cross default provisions which would permit the lenders/counterparties to accelerate the repayment of debt outstanding if not cured within the applicable grace periods. The events of default generally include breaches of contract, failure to make required loan payments, insolvency, cessation of business, notice of lien or assessment, and other proceedings, whether voluntary or involuntary, that would require the repayment of amounts borrowed. The Credit Agreement also required certain subsidiaries to enter into a Second Amended and Restated Continuing Agreement of Guaranty and Suretyship to guarantee payment of all obligations incurred through the Credit Agreement.