Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Data [Abstract]

Quarterly Financial Data

Quarterly Financial Data (Unaudited)

	For the Three Months Ended
2015	March 31			June 30			September 30			December 31
Revenues	$	325,444		$	337,745		$	335,622		$	335,397
Income before income taxes	$	131,000		$	133,810		$	120,588		$	115,082
Net income attributable to SEI	$	84,611		$	86,240		$	79,425		$	81,379
Basic earnings per share	$	0.51		$	0.52		$	0.48		$	0.49
Diluted earnings per share	$	0.50		$	0.51		$	0.47		$	0.48
Effective income tax rate	35.4		%	35.6		%	34.1		%	29.3		%
Gain on sale of subsidiary (Note 15)	$	2,791		$	—		$	—		$	—
Diluted earnings per share (1)	$	0.01		$	—		$	—		$	—

(1) Attributable to gain on sale of subsidiary.

	For the Three Months Ended
2014	March 31			June 30			September 30			December 31
Revenues	$	302,386		$	318,815		$	322,047		$	322,757
Income before income taxes	$	116,665		$	128,854		$	128,618		$	115,525
Net income attributable to SEI	$	74,820		$	82,813		$	83,983		$	77,097
Basic earnings per share	$	0.44		$	0.49		$	0.50		$	0.46
Diluted earnings per share	$	0.43		$	0.48		$	0.49		$	0.45
Effective income tax rate	35.9		%	35.7		%	34.7		%	33.3		%
Gain on sale of subsidiary (Note 15)	$	5,582		$	—		$	—		$	—
Diluted earnings per share (2)	$	0.02		$	—		$	—		$	—
Loss from impairment charge (Note 2)	$	—		$	—		$	—		$	11,266
Diluted earnings per share (3)	$	—		$	—		$	—		$	0.06