Segment and Geographic Information (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	$ 43,477	$ 42,019	$ 128,364	$ 118,621
Adjustment for:
Intangible amortization			9,716	8,455
Corporate and other expense (income), net	(2,023)	1,471	(11,878)	(614)
Interest Expense, net	107	54	147	111
Other (Income) Expense, net	(1,027)	(1,887)	(1,913)	823
Income before income taxes	44,397	43,852	130,130	117,687
Operating Segments [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	44,964	46,401	126,203	126,462
Service Center Based Distribution [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	35,357	35,910	97,445	94,584
Adjustment for:
Intangible amortization	1,637	1,009	4,164	2,727
Fluid Power Businesses [Member]
Reconciliation of operating income for reportable segments to the consolidated income before income taxes
Total operating income	9,607	10,491	28,758	31,878
Adjustment for:
Intangible amortization	$ 1,873	$ 1,902	$ 5,553	$ 5,728