Goodwill and Intangible Assets - Schedule of Changes in the Carrying Amount of Goodwill by Segment (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2024	$ 462,789
Acquisitions	1,017
Impact of foreign exchange rates	3,218
Balance at September 30, 2025	467,024
Lawson
Goodwill [Roll Forward]
Balance at December 31, 2024	192,598
Acquisitions	0
Impact of foreign exchange rates	191
Balance at September 30, 2025	192,789
TestEquity
Goodwill [Roll Forward]
Balance at December 31, 2024	164,880
Acquisitions	0
Impact of foreign exchange rates	0
Balance at September 30, 2025	164,880
Gexpro Services
Goodwill [Roll Forward]
Balance at December 31, 2024	56,342
Acquisitions	168
Impact of foreign exchange rates	1,414
Balance at September 30, 2025	57,924
Canada Branch Division
Goodwill [Roll Forward]
Balance at December 31, 2024	48,969
Acquisitions	849
Impact of foreign exchange rates	1,613
Balance at September 30, 2025	$ 51,431