SEGMENT REPORTING - Technology Segment Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
SEGMENT REPORTING [Abstract]
Net sales	$ 637,315	$ 535,652
Technology Segment [Member]
SEGMENT REPORTING [Abstract]
Revenue from contracts with customers	637,204	535,501
Technology Segment [Member] | Telecom, Media & Entertainment [Member]
SEGMENT REPORTING [Abstract]
Net sales	184,979	117,553
Technology Segment [Member] | State and Local Government and Educational Institutions [Member]
SEGMENT REPORTING [Abstract]
Net sales	90,562	92,096
Technology Segment [Member] | Technology [Member]
SEGMENT REPORTING [Abstract]
Net sales	82,747	109,106
Technology Segment [Member] | Healthcare [Member]
SEGMENT REPORTING [Abstract]
Net sales	74,291	75,280
Technology Segment [Member] | Financial Services [Member]
SEGMENT REPORTING [Abstract]
Net sales	47,500	49,725
Technology Segment [Member] | All Others [Member]
SEGMENT REPORTING [Abstract]
Net sales	157,125	91,741
Product Segment [Member]
SEGMENT REPORTING [Abstract]
Net sales	520,895	457,312
Revenue from contracts with customers	520,895	457,312
Product Segment [Member] | Networking [Member]
SEGMENT REPORTING [Abstract]
Net sales	218,202	234,740
Product Segment [Member] | Cloud [Member]
SEGMENT REPORTING [Abstract]
Net sales	206,996	137,231
Product Segment [Member] | Security [Member]
SEGMENT REPORTING [Abstract]
Net sales	61,107	48,005
Product Segment [Member] | Collaboration [Member]
SEGMENT REPORTING [Abstract]
Net sales	11,757	20,899
Product Segment [Member] | Other [Member]
SEGMENT REPORTING [Abstract]
Net sales	22,833	16,437
Professional Services Segment [Member]
SEGMENT REPORTING [Abstract]
Net sales	71,729	37,279
Revenue from contracts with customers	71,729	37,279
Managed Services Segment [Member]
SEGMENT REPORTING [Abstract]
Net sales	44,580	40,910
Revenue from contracts with customers	$ 44,580	$ 40,910