Supplementary Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Data

(in thousands, except per share data, for the quarters ended)	March 31,		June 30,		September 30,		December 31,
20181
Revenue	$	263,852	$	255,993	$	308,616	$	307,216
Operating Income	$	79,671	$	80,757	$	81,898	$	87,954
Net Income Including the Noncontrolling Interests in Subsidiaries2	$	60,006	$	38,667	$	61,994	$	61,632
Amounts Attributable to Federated Investors, Inc.
Net Income2	$	60,331	$	38,822	$	59,608	$	61,536
Earnings Per Common Share – Basic and Diluted	$	0.60	$	0.38	$	0.59	$	0.61
2017
Revenue	$	273,501	$	272,796	$	278,315	$	278,312
Operating Income	$	77,773	$	84,211	$	88,690	$	90,834
Net Income Including the Noncontrolling Interests in Subsidiaries3	$	51,027	$	54,659	$	57,241	$	131,974
Amounts Attributable to Federated Investors, Inc.
Net Income3	$	49,641	$	53,451	$	56,439	$	131,810
Earnings Per Common Share – Basic and Diluted4	$	0.49	$	0.53	$	0.56	$	1.31

1 The financial results of Hermes have been included in Federated's Consolidated Financial Statements from the July 1, 2018 effective date of the acquisition.

2 The quarter ended June 30, 2018 includes a $29.0 million loss related to two derivative financial instruments associated with the Hermes Acquisition (see Note (8) for additional information).

3 The quarter ended December 31, 2017 includes a $70.4 million reduction to the income tax provision resulting from the revaluation of the net deferred tax liability due to the enactment of the Tax Act, thereby increasing net income.

4 The quarter ended December 31, 2017 includes a $0.70 increase to earnings per share resulting from the revaluation of the net deferred tax liability due to the enactment of the Tax Act.