Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Reconciliation of Shares Used to Compute Basic and Diluted Earnings per Share

The following is a reconciliation of the shares used to compute basic and diluted earnings per share (in thousands):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2018	2017	2018	2017
Weighted average number of common shares outstanding used to compute basic earnings per share	52,362	52,500	52,282	52,660
Dilutive effect of stock-based awards	672	673	708	659
Number of shares used to compute diluted earnings per share	53,034	53,173	52,990	53,319