Restructuring Plan - Expenses by Business Segment for Restructuring Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	$ 1,365	$ 926
Provisions	3,411	1,959
Cash paid	(2,723)	(1,513)
Reversals	(252)	(7)
Restructuring liability at end period	1,801	1,365
Severance
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	1,365	190
Provisions	3,181	1,706
Cash paid	(2,546)	(524)
Reversals	(199)	(7)
Restructuring liability at end period	1,801	1,365
Other Members
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	0	736
Provisions	230	253
Cash paid	(177)	(989)
Reversals	(53)	0
Restructuring liability at end period	$ 0	$ 0