REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of revenue
Net sales	$ 775,692	$ 751,368	$ 2,392,545	$ 2,092,421
Notebooks/Mobility
Disaggregation of revenue
Net sales	276,666	304,119	893,083	792,093
Desktops
Disaggregation of revenue
Net sales	71,309	68,121	247,368	195,531
Software
Disaggregation of revenue
Net sales	86,147	61,268	218,981	189,266
Servers/Storage
Disaggregation of revenue
Net sales	55,086	51,742	153,404	151,945
Net/Com Products
Disaggregation of revenue
Net sales	55,546	53,237	163,705	152,090
Displays and Sound
Disaggregation of revenue
Net sales	79,021	75,098	250,255	200,181
Accessories
Disaggregation of revenue
Net sales	96,866	86,392	299,113	247,836
Other Hardware/Services
Disaggregation of revenue
Net sales	55,051	51,391	166,636	163,479
Business Solutions
Disaggregation of revenue
Net sales	315,816	281,425	964,610	795,017
Business Solutions | Notebooks/Mobility
Disaggregation of revenue
Net sales	120,689	109,910	374,298	301,746
Business Solutions | Desktops
Disaggregation of revenue
Net sales	21,151	22,329	68,459	64,095
Business Solutions | Software
Disaggregation of revenue
Net sales	36,965	28,761	111,440	89,025
Business Solutions | Servers/Storage
Disaggregation of revenue
Net sales	27,016	25,775	78,878	67,434
Business Solutions | Net/Com Products
Disaggregation of revenue
Net sales	27,732	21,091	74,789	61,855
Business Solutions | Displays and Sound
Disaggregation of revenue
Net sales	28,377	26,321	92,170	71,920
Business Solutions | Accessories
Disaggregation of revenue
Net sales	33,007	28,865	100,904	82,192
Business Solutions | Other Hardware/Services
Disaggregation of revenue
Net sales	20,879	18,373	63,672	56,750
Enterprise Solutions
Disaggregation of revenue
Net sales	305,510	309,722	989,861	882,168
Enterprise Solutions | Notebooks/Mobility
Disaggregation of revenue
Net sales	95,017	117,017	333,764	293,680
Enterprise Solutions | Desktops
Disaggregation of revenue
Net sales	37,045	34,473	134,541	103,740
Enterprise Solutions | Software
Disaggregation of revenue
Net sales	36,996	22,829	79,578	71,496
Enterprise Solutions | Servers/Storage
Disaggregation of revenue
Net sales	15,857	12,560	43,085	56,822
Enterprise Solutions | Net/Com Products
Disaggregation of revenue
Net sales	19,625	23,887	66,060	64,404
Enterprise Solutions | Displays and Sound
Disaggregation of revenue
Net sales	30,011	33,490	104,822	86,238
Enterprise Solutions | Accessories
Disaggregation of revenue
Net sales	46,051	43,207	151,786	131,394
Enterprise Solutions | Other Hardware/Services
Disaggregation of revenue
Net sales	24,908	22,259	76,225	74,394
Public Sector Solutions
Disaggregation of revenue
Net sales	154,366	160,221	438,074	415,236
Public Sector Solutions | Notebooks/Mobility
Disaggregation of revenue
Net sales	60,960	77,192	185,021	196,667
Public Sector Solutions | Desktops
Disaggregation of revenue
Net sales	13,113	11,319	44,368	27,696
Public Sector Solutions | Software
Disaggregation of revenue
Net sales	12,186	9,678	27,963	28,745
Public Sector Solutions | Servers/Storage
Disaggregation of revenue
Net sales	12,213	13,407	31,441	27,689
Public Sector Solutions | Net/Com Products
Disaggregation of revenue
Net sales	8,189	8,259	22,856	25,831
Public Sector Solutions | Displays and Sound
Disaggregation of revenue
Net sales	20,633	15,287	53,263	42,023
Public Sector Solutions | Accessories
Disaggregation of revenue
Net sales	17,808	14,320	46,423	34,250
Public Sector Solutions | Other Hardware/Services
Disaggregation of revenue
Net sales	$ 9,264	$ 10,759	$ 26,739	$ 32,335