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Revenue - Percentages of Sales by Product Line (Details) - Product Line - Sales	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 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	31.00%	32.60%	31.30%	33.10%
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%	5.50%	5.30%	5.40%
Hydraulics & pneumatics
Percentage of Sales by Product Line [Line Items]
Percentage of sales	6.80%	6.80%	6.80%	6.70%
Material handling
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.60%	5.60%	5.60%	5.60%
Janitorial supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.80%	8.30%	8.60%	8.20%
Electrical supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.50%	4.70%	4.50%	4.60%
Welding supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.30%	4.10%	4.20%	4.10%
Safety supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	21.80%	20.70%	21.70%	20.50%
Other
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.50%	3.20%	3.50%	3.30%

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