Segment and Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Segment financial information
Net Sales	$ 2,519,428	$ 2,751,561	$ 2,459,878
Operating income for reportable segments	88,801	184,619	164,358
Assets used in the business	1,312,529	1,432,556
Depreciation and amortization of property	15,966	16,578	13,977
Capital expenditures	13,130	14,933	20,190
Service Center Based Distribution Segment [Member]
Segment financial information
Net Sales	2,087,041	2,254,768	1,973,359
Operating income for reportable segments	109,491	140,421	118,857
Assets used in the business	1,124,101	1,228,131	1,116,311
Depreciation and amortization of property	14,595	15,196	12,399
Capital expenditures	12,227	13,531	18,744
Fluid Power Businesses [Member]
Segment financial information
Net Sales	432,387	496,793	486,519
Operating income for reportable segments	40,794	48,535	44,621
Assets used in the business	188,428	204,425	217,858
Depreciation and amortization of property	1,371	1,382	1,578
Capital expenditures	903	1,402	1,446
Reportable Segment [Member]
Segment financial information
Net Sales	2,519,428	2,751,561	2,459,878
Operating income for reportable segments	150,285	188,956	163,478
Assets used in the business	1,312,529	1,432,556	1,334,169
Depreciation and amortization of property	15,966	16,578	13,977
Capital expenditures	$ 13,130	$ 14,933	$ 20,190