Weighted Average Common Shares (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Summary of Weighted Average Numbers of Common Shares Used to Compute Basic and Diluted Net Income Per Share

The weighted average number of common shares used to compute basic and diluted net income per share for the quarters and years to date ended September 30, 2018 and 2017 were as follows:

	For the Quarter Ended September 30,				For the Year to Date Ended September 30,
	2018		2017		2018		2017
Basic common shares outstanding		69,737		69,082		69,542		68,897
Common stock equivalents		2,053		1,783		1,883		1,763
Diluted common shares outstanding		71,790		70,865		71,425		70,660