Segment and Geographic Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating Income	$ 56,444	$ 45,668	$ 154,996	$ 126,943
Adjustment for:
Intangible amortization			21,326	18,387
Corporate and other expense (income), net	8,569	(3,414)	(10,667)	(27,759)
Interest Expense, net	8,216	2,165	12,521	6,411
Other (Income) Expense, net	(1,291)	154	(2,022)	(54)
Income before income taxes	49,519	43,349	144,497	120,586
Operating Segments [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating Income	74,813	48,310	165,655	117,571
Service Center Based Distribution [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating Income	48,229	36,042	111,957	85,125
Adjustment for:
Intangible amortization	4,311	4,714	13,248	14,312
Fluid Power & Flow Control Segment [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Operating Income	26,584	12,268	53,698	32,446
Adjustment for:
Intangible amortization	$ 5,489	$ 1,342	$ 8,078	$ 4,075