Goodwill and Intangibles (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2016	Jun. 30, 2016
Changes in the carrying amount of goodwill by reportable segment
Balance at June 30, 2016	$ 202,700	$ 254,406
Goodwill acquired during the period		21,968
Impairment		(64,794)
Goodwill added during the period	3,220
Other, primarily currency translation	(1,957)	(8,880)
Balance at December 31, 2016	203,963	202,700
Service Center Based Distribution Segment [Member]
Changes in the carrying amount of goodwill by reportable segment
Balance at June 30, 2016	198,486	253,477
Goodwill acquired during the period		18,683
Impairment		(64,794)
Goodwill added during the period	3,220
Other, primarily currency translation	(1,513)	(8,880)
Balance at December 31, 2016	200,193	198,486
Fluid Power Businesses Segment [Member]
Changes in the carrying amount of goodwill by reportable segment
Balance at June 30, 2016	4,214	929
Goodwill acquired during the period		3,285
Impairment		0
Goodwill added during the period	0
Other, primarily currency translation	(444)	0
Balance at December 31, 2016	$ 3,770	$ 4,214