Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Results [Abstract]

Schedule of Quarterly Financial Information

	Year Ended December 31, 2019
	Fourth Quarter		Third Quarter		Second Quarter		First Quarter
Revenues	$	405,588	$	344,141	$	322,432	$	299,893
Gross profit		341,260		282,425		262,166		248,880
Net income (1)		123,023		30,745		32,589		32,449
Net income per common share:
Basic	$	2.54	$	0.63	$	0.67	$	0.67
Diluted	$	2.45	$	0.62	$	0.66	$	0.66
Weighted average shares outstanding
Basic		47,626,833		47,673,211		47,727,786		47,560,749
Diluted		49,425,395		49,064,272		49,102,879		48,509,181
	Year Ended December 31, 2018
	Fourth Quarter		Third Quarter		Second Quarter		First Quarter
Revenues	$	346,059	$	292,724	$	287,889	$	280,623
Gross profit		290,097		243,507		240,140		232,478
Net income		50,614		30,723		28,479		18,871
Net income per common share:
Basic	$	1.04	$	0.63	$	0.59	$	0.39
Diluted	$	1.03	$	0.61	$	0.57	$	0.38
Weighted average shares outstanding
Basic		47,967,014		48,009,953		47,951,326		47,873,007
Diluted		48,505,023		49,279,217		49,218,521		48,706,717

⁽¹⁾ The increase in the Company’s net income in the fourth quarter of 2019 is primarily driven by the tax benefit recognized as a result of an intra-entity asset transfer (see Note 13 - Income Taxes).