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Segment Information - Schedule of Segment Revenue and the Elimination of Intersegment Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Revenue	$ 517,958	$ 468,019	$ 1,498,424	$ 1,323,641
Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	(572)	(415)	(1,807)	(1,478)
Lawson
Segment Reporting Information [Line Items]
Revenue	121,541	117,953	366,268	357,204
Lawson | Operating Segments
Segment Reporting Information [Line Items]
Revenue	121,549	117,957	366,324	357,261
Lawson | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	8	4	56	57
TestEquity
Segment Reporting Information [Line Items]
Revenue	206,310	195,210	589,596	579,721
TestEquity | Operating Segments
Segment Reporting Information [Line Items]
Revenue	206,479	195,244	590,298	579,874
TestEquity | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	169	34	702	153
Gexpro Services
Segment Reporting Information [Line Items]
Revenue	130,192	115,764	376,259	320,658
Gexpro Services | Operating Segments
Segment Reporting Information [Line Items]
Revenue	130,525	116,141	377,237	321,926
Gexpro Services | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	333	377	978	1,268
Canada Branch Division
Segment Reporting Information [Line Items]
Revenue	59,915	39,092	166,301	66,058
Canada Branch Division | Operating Segments
Segment Reporting Information [Line Items]
Revenue	59,977	39,092	166,372	66,058
Canada Branch Division | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	$ 62	$ 0	$ 71	$ 0

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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