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Segment Information - Schedule of Segment Revenue and the Elimination of Intersegment Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting Information [Line Items]
Revenue	$ 557,734	$ 502,437	$ 1,053,729	$ 980,466
Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	(621)	(581)	(1,208)	(1,235)
Lawson
Segment Reporting Information [Line Items]
Revenue	125,403	124,287	249,092	244,727
Lawson | Operating Segments
Segment Reporting Information [Line Items]
Revenue	125,498	124,313	249,234	244,775
Lawson | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	95	26	142	48
TestEquity
Segment Reporting Information [Line Items]
Revenue	228,921	194,830	432,685	383,286
TestEquity | Operating Segments
Segment Reporting Information [Line Items]
Revenue	228,994	195,046	433,170	383,819
TestEquity | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	73	216	485	533
Gexpro Services
Segment Reporting Information [Line Items]
Revenue	139,727	127,474	257,270	246,067
Gexpro Services | Operating Segments
Segment Reporting Information [Line Items]
Revenue	140,146	127,807	257,794	246,712
Gexpro Services | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	419	333	524	645
Canada Branch Division
Segment Reporting Information [Line Items]
Revenue	63,683	55,846	114,682	106,386
Canada Branch Division | Operating Segments
Segment Reporting Information [Line Items]
Revenue	63,717	55,852	114,739	106,395
Canada Branch Division | Intersegment revenue elimination
Segment Reporting Information [Line Items]
Revenue	$ 34	$ 6	$ 57	$ 9

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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