Segment and Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Segment financial information
Net sales	$ 641,904	$ 702,325
Operating income for reportable segments	41,026	46,165
Assets used in business	1,376,260		$ 1,434,968
Capital expenditures	3,112	3,100
Operating Segments [Member]
Segment financial information
Net sales	641,904	702,325
Operating income for reportable segments	40,242	50,468
Assets used in business	1,376,260	1,468,919
Depreciation and amortization of property	3,930	4,211
Capital expenditures	3,112	3,100
Service Center Based Distribution [Member]
Segment financial information
Net sales	528,487	575,097
Operating income for reportable segments	29,959	37,535
Assets used in business	1,175,149	1,251,565
Depreciation and amortization of property	3,617	3,843
Capital expenditures	2,887	2,738
Fluid Power Businesses [Member]
Segment financial information
Net sales	113,417	127,228
Operating income for reportable segments	10,283	12,933
Assets used in business	201,111	217,354
Depreciation and amortization of property	313	368
Capital expenditures	$ 225	$ 362