Revenue - Percentages of Sales by Product Line (Details) - Product Line - Sales	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Percentage of Sales by Product Line [Line Items]
Percentage of sales	100.00%	100.00%	100.00%
Fasteners
Percentage of Sales by Product Line [Line Items]
Percentage of sales	34.00%	33.30%	29.90%
Tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.40%	8.50%	8.20%
Cutting tools
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.00%	5.00%	4.70%
Hydraulics & pneumatics
Percentage of Sales by Product Line [Line Items]
Percentage of sales	6.50%	6.40%	5.90%
Material handling
Percentage of Sales by Product Line [Line Items]
Percentage of sales	5.70%	5.60%	5.10%
Janitorial supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	8.00%	8.20%	9.80%
Electrical supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	4.40%	4.30%	4.10%
Welding supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.90%	3.80%	3.50%
Safety supplies
Percentage of Sales by Product Line [Line Items]
Percentage of sales	20.80%	21.20%	25.50%
Other
Percentage of Sales by Product Line [Line Items]
Percentage of sales	3.30%	3.70%	3.30%