Revenue Recognition - Product Type (Details) - Product Concentration Risk - Revenue from Contract with Customer Benchmark	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	100.00%	100.00%
Fastening Systems
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	21.00%	22.80%
Cutting Tools and Abrasives
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	14.90%	13.30%
Fluid Power
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	13.40%	14.20%
Electrical
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	10.60%	10.80%
Specialty Chemicals
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	9.70%	11.20%
Aftermarket Automotive Supplies
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	6.80%	8.20%
Safety
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	4.90%	6.30%
Welding and Metal Repair
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	1.70%	1.40%
Other
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	17.00%	11.80%