Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net Sales	$ 348,389	$ 255,184	$ 635,981	$ 470,585
Cost of sales	267,458	189,623	495,032	355,163
Gross profit	80,931	65,561	140,949	115,422
Selling, general, and administrative expense	49,522	34,813	96,725	71,897
Income from operations	31,409	30,748	44,224	43,525
Interest expense	245	222	689	266
Other income	(4,666)	(1,892)	(4,351)	(1,374)
Income before taxes	35,830	32,418	47,886	44,633
Provision for income taxes	9,457	7,961	11,017	10,274
Income from continuing operations	26,373	24,457	36,869	34,359
Discontinued operations:
(Loss) Income before taxes	(502)	3,746	2,068	6,576
(Benefit from) Provision for income taxes	(78)	911	226	1,584
(Loss) Income from discontinued operations	(424)	2,835	1,842	4,992
Net income	$ 25,949	$ 27,292	$ 38,711	$ 39,351
Net earnings per share – Basic:
Income from continuing operations (in dollars per share)	$ 0.80	$ 0.75	$ 1.12	$ 1.05
(Loss) Income from discontinued operations (in dollars per share)	(0.01)	0.09	0.06	0.16
Net income (in dollars per share)	$ 0.79	$ 0.84	$ 1.18	$ 1.21
Weighted average shares outstanding -- Basic	32,790	32,605	32,791	32,596
Net earnings per share – Diluted:
Income from continuing operations (in dollars per share)	$ 0.80	$ 0.74	$ 1.11	$ 1.05
(Loss) Income from discontinued operations (in dollars per share)	(0.01)	0.09	0.06	0.15
Net income (in dollars per share)	$ 0.79	$ 0.83	$ 1.17	$ 1.20
Weighted average shares outstanding -- Diluted	33,056	32,860	33,071	32,868