Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Computation of reconciliation of basic earnings per share to diluted earnings per share

The following table details the reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended March 31,
	2018		2017
			As Adjusted
Numerator for basic and diluted earnings per share:
Net income	$	37,825	$	32,769
Denominator:
Weighted-average basic common shares outstanding	38,002		36,845
Assumed conversion of dilutive securities:
Stock options	1,834		2,087
Denominator for diluted earnings per share    - Adjusted weighted-average shares	39,836		38,932
Earnings per common share:
Basic	$	1.00	$	0.89
Diluted	$	0.95	$	0.84