Revenue - Percentages of Sales by Product Line (Details) - Product Line - Sales	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Percentage of Sales by Product Line [Line Items]
Percentage of sales	100.00%	100.00%
Fasteners
Percentage of Sales by Product Line [Line Items]
Percentage of sales	33.60%	34.30%
Tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.50%	8.20%
Cutting tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.40%	5.00%
Hydraulics & pneumatics
Percentage of Sales by Product Line [Line Items]
Percentage of sales	6.60%	6.50%
Material handling
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.60%	5.60%
Janitorial supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.10%	7.90%
Electrical supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.60%	4.40%
Welding supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.00%	3.70%
Safety supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	20.40%	21.00%
Other
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.20%	3.40%