Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

	Year Ended December 31, 2020
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share data)
Revenue	$	602,461	$	608,351	$	551,631	$	631,271	$	2,393,714
Gross profit	$	202,066	$	197,540	$	184,633	$	207,539	$	791,778
Net income	$	12,965	$	22,325	$	26,067	$	9,308	$	70,665
Net income per share from:
Basic	$	0.27	$	0.47	$	0.55	$	0.20	$	1.49
Diluted	$	0.27	$	0.47	$	0.55	$	0.19	$	1.48

	Year Ended December 31, 2019
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share data)
Revenue	$	532,441	$	535,177	$	567,597	$	586,892	$	2,222,107
Gross profit	$	176,759	$	179,542	$	190,031	$	197,133	$	743,465
Net income	$	34,122	$	28,869	$	23,515	$	27,482	$	113,988
Net income per share from:
Basic	$	0.73	$	0.62	$	0.50	$	0.59	$	2.44
Diluted	$	0.71	$	0.61	$	0.49	$	0.58	$	2.40