Goodwill and Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Changes in the carrying amount of goodwill by reportable segment
Balance at beginning of period			$ 202,700	$ 254,406	$ 254,406
Goodwill acquired during the period					21,968
Impairment	$ 0	$ (64,794)	0	(64,794)	(64,794)
Other, primarily currency translation			(1,204)		(8,880)
Goodwill added during the period			3,845
Balance at end of period	205,341		205,341		202,700
Service Center Based Distribution Segment [Member]
Changes in the carrying amount of goodwill by reportable segment
Balance at beginning of period			198,486	253,477	253,477
Goodwill acquired during the period					18,683
Impairment					(64,794)
Other, primarily currency translation			(760)		(8,880)
Goodwill added during the period			3,220
Balance at end of period	200,946		200,946		198,486
Fluid Power Businesses Segment [Member]
Changes in the carrying amount of goodwill by reportable segment
Balance at beginning of period			4,214	$ 929	929
Goodwill acquired during the period					3,285
Impairment					0
Other, primarily currency translation			(444)		0
Goodwill added during the period			625
Balance at end of period	$ 4,395		$ 4,395		$ 4,214