Segment Information - Reportable Segments by Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 1,784,942	$ 1,550,331
Canada Branch Division
Segment Reporting Information [Line Items]
Assets	52,017	42,941
Lawson | Operating Segments
Segment Reporting Information [Line Items]
Assets	554,384	467,195
TestEquity | Operating Segments
Segment Reporting Information [Line Items]
Assets	651,667	638,950
Gexpro Services | Operating Segments
Segment Reporting Information [Line Items]
Assets	333,591	329,799
Canada Branch Division | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 193,283	$ 71,446