Earnings per Common Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share Basic and Diluted

	Year Ended December 31,
	2018		2017		2016
Numerator — basic and diluted
Net income	$	150,611	$	107,962	$	85,520
Denominator
Weighted average number of common shares outstanding — basic	37,098		38,697		40,943
Effect of dilutive stock options	491		117		281
Effect of dilutive restricted shares	729		378		485
Weighted average number of common shares outstanding — diluted	38,318		39,192		41,709
Earnings per common share — basic	$	4.06	$	2.79	$	2.09
Earnings per common share — diluted	$	3.93	$	2.75	$	2.05
Antidilutive stock options and restricted shares	175		1,561		1,404