Revenue Recognition Revenue Recognition (Details 2)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	100.00%	100.00%
Power Transmission [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	28.30%	27.10%
Fluid Power [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	21.30%	21.10%
Bearings, Linear & Seals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	20.00%	18.30%
General Maintenance; Hose Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	18.10%	20.90%
Specialty Flow Control [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	12.30%	12.60%
Service Center Based Distribution Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	100.00%	100.00%
Service Center Based Distribution Segment [Member] | Power Transmission [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	37.70%	34.50%
Service Center Based Distribution Segment [Member] | Fluid Power [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	13.10%	13.30%
Service Center Based Distribution Segment [Member] | Bearings, Linear & Seals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	29.00%	25.90%
Service Center Based Distribution Segment [Member] | General Maintenance; Hose Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	20.20%	26.30%
Service Center Based Distribution Segment [Member] | Specialty Flow Control [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	0.00%	0.00%
Fluid Power & Flow Control Segment [Member]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	100.00%	100.00%
Fluid Power & Flow Control Segment [Member] | Power Transmission [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	7.60%	9.30%
Fluid Power & Flow Control Segment [Member] | Fluid Power [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	39.10%	39.70%
Fluid Power & Flow Control Segment [Member] | Bearings, Linear & Seals [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	0.40%	0.30%
Fluid Power & Flow Control Segment [Member] | General Maintenance; Hose Products [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	13.80%	8.00%
Fluid Power & Flow Control Segment [Member] | Specialty Flow Control [Domain]
Disaggregation of Revenue [Line Items]
Disaggregated Revenue by Product Line, Percent	39.10%	42.70%