Segment and Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Segment financial information
Net Sales	$ 2,751,561	$ 2,459,878	$ 2,462,171
Operating income for reportable segments	184,619	164,358	176,399
Assets used in the business	1,434,968	1,334,169
Depreciation and amortization of property	16,578	13,977	12,501
Capital expenditures	14,933	20,190	12,214
Service Center Based Distribution Segment [Member]
Segment financial information
Net Sales	2,254,768	1,973,359	2,003,440
Operating income for reportable segments	140,421	118,857	138,484
Assets used in the business	1,230,543	1,116,311	859,547
Depreciation and amortization of property	15,196	12,399	10,692
Capital expenditures	13,531	18,744	10,415
Fluid Power Businesses [Member]
Segment financial information
Net Sales	496,793	486,519	458,731
Operating income for reportable segments	48,535	44,621	41,083
Assets used in the business	204,425	217,858	199,159
Depreciation and amortization of property	1,382	1,578	1,809
Capital expenditures	1,402	1,446	1,799
Reportable Segment [Member]
Segment financial information
Net Sales	2,751,561	2,459,878	2,462,171
Operating income for reportable segments	188,956	163,478	179,567
Assets used in the business	1,434,968	1,334,169	1,058,706
Depreciation and amortization of property	16,578	13,977	12,501
Capital expenditures	$ 14,933	$ 20,190	$ 12,214