Segment and Geographic Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	$ 46,715	$ 37,856	$ 98,552	$ 81,275
Adjustment for:
Intangible amortization			11,526	12,331
Corporate and other income, net	(8,580)	(12,163)	(19,236)	(24,345)
Interest Expense, net	2,139	2,100	4,305	4,246
Other Income, net	(20)	(11)	(731)	(208)
Income before income taxes	44,596	35,767	94,978	77,237
Operating Segments [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	43,830	31,787	90,842	69,261
Service Center Based Distribution [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	30,006	22,087	63,728	49,083
Adjustment for:
Intangible amortization	4,425	4,752	8,937	9,598
Fluid Power Businesses [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	13,824	9,700	27,114	20,178
Adjustment for:
Intangible amortization	$ 1,270	$ 1,342	$ 2,589	$ 2,733