Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Computation of Basic and Diluted Earnings Per Share from Continuing Operations

The following table sets forth the reconciliation of the numerator and the denominator of basic earnings per share and diluted earnings per share from continuing operations for the years ended December 31, 2019, 2018 and 2017 (in thousands, except per share data):

	Year Ended December 31,
	2019		2018		2017
Numerator:
Income from continuing operations	$	71,049	$	61,573	$	51,032
Denominator:
Basic
Weighted average common shares outstanding		54,299		54,561		53,862
Diluted
Stock options (1)		1,288		1,542		1,499
Restricted stock awards		234		302		328
Contingent shares (2)		74		82		—
Diluted weighted average common shares outstanding		55,895		56,487		55,689
Earnings Per Share:
Basic earnings per share from continuing operations	$	1.31	$	1.13	$	0.95
Diluted earnings per share from continuing operations	$	1.27	$	1.09	$	0.92

(1)	For the years ended December 31, 2019, 2018 and 2017, a total of 0.5 million, 0.4 million and 0.5 million stock based awards, respectively, were excluded from the calculation of diluted earnings per share as their exercise prices would render them anti-dilutive.

(2)	Contingent shares represent additional shares to be issued for purchase price earned by former owners of businesses acquired by us once future conditions have been met. For further details, refer to Note 18, Acquisitions.