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Revenue - Percentages of Sales by Product Line (Details) - Product Line - Sales	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Percentage of Sales by Product Line [Line Items]
Percentage of sales	100.00%	100.00%	100.00%	100.00%
Fasteners
Percentage of Sales by Product Line [Line Items]
Percentage of sales	30.20%	32.10%	30.90%	32.80%
Tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.40%	8.50%	8.50%	8.50%
Cutting tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.30%	5.20%	5.30%	5.30%
Hydraulics & pneumatics
Percentage of Sales by Product Line [Line Items]
Percentage of sales	6.80%	6.70%	6.80%	6.70%
Material handling
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.70%	5.60%	5.60%	5.60%
Janitorial supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	9.00%	8.50%	8.70%	8.30%
Electrical supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.80%	4.60%	4.60%	4.60%
Welding supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.20%	4.00%	4.20%	4.10%
Safety supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	22.50%	21.40%	22.00%	20.80%
Other
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.10%	3.40%	3.40%	3.30%

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