CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net revenue	$ 420,486	$ 396,449	$ 1,211,756	$ 1,110,398
Cost of sales	288,839	278,362	836,710	795,616
Gross profit	131,647	118,087	375,046	314,782
Operating expenses
Selling	20,843	19,398	60,209	54,431
Administrative	58,240	55,098	177,495	156,022
Amortization	6,974	6,156	20,378	18,065
Operating income	45,590	37,435	116,964	86,264
Other expense
Interest expense, net	7,564	8,458	22,679	19,783
Other	176	155	305	381
Income before income taxes	37,850	28,822	93,980	66,100
Income tax provision	9,773	7,610	24,578	17,135
Net income	28,077	21,212	69,402	48,965
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on cash flow hedge, net of tax (provision) benefit of ($408) and $575 for the three months ended September 30, 2020 and 2019, respectively, and $1,582 and $2,676 for the nine months ended September 30, 2020 and 2019, respectively	1,176	(1,726)	(4,582)	(8,021)
Comprehensive income	$ 29,253	$ 19,486	$ 64,820	$ 40,944
Basic net income per share	$ 0.95	$ 0.71	$ 2.35	$ 1.65
Diluted net income per share	$ 0.95	$ 0.71	$ 2.33	$ 1.64
Weighted average shares outstanding:
Basic	29,478,816	29,785,548	29,549,460	29,741,555
Diluted	29,698,028	29,877,056	29,737,716	29,839,873