REVENUE RECOGNITION- Schedule of Revenue by Reportable Segment and Major Customer Industry (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
General Industry
Disaggregation of Revenue [Line Items]
Total	38.10%	35.40%	37.50%	35.80%
Industrial Machinery
Disaggregation of Revenue [Line Items]
Total	13.90%	12.80%	14.00%	12.70%
Food
Disaggregation of Revenue [Line Items]
Total	11.10%	11.50%	11.20%	11.50%
Metals
Disaggregation of Revenue [Line Items]
Total	9.50%	10.00%	9.80%	10.20%
Forest Products
Disaggregation of Revenue [Line Items]
Total	8.00%	9.20%	8.20%	9.20%
Chem/Petrochem
Disaggregation of Revenue [Line Items]
Total	5.90%	7.50%	5.80%	7.20%
Cement & Aggregate
Disaggregation of Revenue [Line Items]
Total	5.80%	5.90%	5.60%	5.70%
Transportation
Disaggregation of Revenue [Line Items]
Total	4.00%	3.70%	4.10%	3.90%
Oil & Gas
Disaggregation of Revenue [Line Items]
Total	3.70%	4.00%	3.80%	3.80%
Total
Disaggregation of Revenue [Line Items]
Total	100.00%	100.00%	100.00%	100.00%
Service Center \| General Industry
Disaggregation of Revenue [Line Items]
Total	34.60%	34.60%	34.40%	34.80%
Service Center \| Industrial Machinery
Disaggregation of Revenue [Line Items]
Total	7.90%	8.00%	7.90%	8.00%
Service Center \| Food
Disaggregation of Revenue [Line Items]
Total	15.50%	15.20%	15.70%	15.30%
Service Center \| Metals
Disaggregation of Revenue [Line Items]
Total	11.70%	10.90%	11.60%	11.10%
Service Center \| Forest Products
Disaggregation of Revenue [Line Items]
Total	11.30%	12.00%	11.60%	11.90%
Service Center \| Chem/Petrochem
Disaggregation of Revenue [Line Items]
Total	2.50%	2.90%	2.60%	2.90%
Service Center \| Cement & Aggregate
Disaggregation of Revenue [Line Items]
Total	8.20%	7.90%	7.90%	7.60%
Service Center \| Transportation
Disaggregation of Revenue [Line Items]
Total	3.50%	3.50%	3.50%	3.70%
Service Center \| Oil & Gas
Disaggregation of Revenue [Line Items]
Total	4.80%	5.00%	4.80%	4.70%
Service Center \| Total
Disaggregation of Revenue [Line Items]
Total	100.00%	100.00%	100.00%	100.00%
Engineered Solutions \| General Industry
Disaggregation of Revenue [Line Items]
Total	44.70%	36.60%	43.30%	37.80%
Engineered Solutions \| Industrial Machinery
Disaggregation of Revenue [Line Items]
Total	24.70%	23.00%	25.10%	22.80%
Engineered Solutions \| Food
Disaggregation of Revenue [Line Items]
Total	3.10%	3.90%	3.00%	3.50%
Engineered Solutions \| Metals
Disaggregation of Revenue [Line Items]
Total	5.60%	8.30%	6.40%	8.20%
Engineered Solutions \| Forest Products
Disaggregation of Revenue [Line Items]
Total	2.10%	3.50%	2.10%	3.40%
Engineered Solutions \| Chem/Petrochem
Disaggregation of Revenue [Line Items]
Total	11.80%	17.00%	11.60%	16.60%
Engineered Solutions \| Cement & Aggregate
Disaggregation of Revenue [Line Items]
Total	1.40%	1.60%	1.30%	1.40%
Engineered Solutions \| Transportation
Disaggregation of Revenue [Line Items]
Total	4.90%	4.10%	5.20%	4.40%
Engineered Solutions \| Oil & Gas
Disaggregation of Revenue [Line Items]
Total	1.70%	2.00%	2.00%	1.90%
Engineered Solutions \| Total
Disaggregation of Revenue [Line Items]
Total	100.00%	100.00%	100.00%	100.00%