Revenue Recognition Revenue Recognition (Details 2)	3 Months Ended
	Sep. 30, 2018
General Industry [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	38.30%
General Industry [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	35.80%
General Industry [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	44.00%
Industrial Machinery [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	12.90%
Industrial Machinery [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	9.20%
Industrial Machinery [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	21.40%
Metals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	10.10%
Metals [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	11.10%
Metals [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	7.80%
Food [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	8.30%
Food [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	10.80%
Food [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	2.50%
Oil & Gas [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	7.30%
Oil & Gas [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	9.60%
Oil & Gas [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	2.10%
Chem/Petrochem [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	7.10%
Chem/Petrochem [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	3.50%
Chem/Petrochem [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	15.60%
Forest Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	6.90%
Forest Products [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	8.70%
Forest Products [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	2.60%
Cement & Aggregate [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	5.00%
Cement & Aggregate [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	6.80%
Cement & Aggregate [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	1.00%
Transportation [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	4.10%
Transportation [Domain] | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	4.50%
Transportation [Domain] | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	3.00%
Total
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	100.00%
Total | Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	100.00%
Total | Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	100.00%