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Segment and Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Segment financial information
Net Sales	$ 2,593,746	$ 2,519,428	$ 2,751,561
Operating income for reportable segments	174,590	88,801	184,619
Assets used in the business	1,387,595	1,312,025
Depreciation and amortization of property	15,306	15,966	16,578
Capital expenditures	17,045	13,130	14,933
Service Center Based Distribution Segment [Member]
Segment financial information
Net Sales	2,119,904	2,087,041	2,254,768
Operating income for reportable segments	111,357	109,491	140,421
Assets used in the business	1,153,411	1,123,597	1,228,131
Depreciation and amortization of property	14,010	14,595	15,196
Capital expenditures	14,497	12,227	13,531
Fluid Power Businesses [Member]
Segment financial information
Net Sales	473,842	432,387	496,793
Operating income for reportable segments	51,006	40,794	48,535
Assets used in the business	234,184	188,428	204,425
Depreciation and amortization of property	1,296	1,371	1,382
Capital expenditures	2,548	903	1,402
Reportable Segment [Member]
Segment financial information
Net Sales	2,593,746	2,519,428	2,751,561
Operating income for reportable segments	162,363	150,285	188,956
Assets used in the business	1,387,595	1,312,025	1,432,556
Depreciation and amortization of property	15,306	15,966	16,578
Capital expenditures	$ 17,045	$ 13,130	$ 14,933

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