Restructuring Plan - Expenses by Business Segment for Restructuring Plans (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period		$ 926	$ 1,992
Provisions		1,959	1,341
Cash paid		(1,513)	(2,306)
Reversals	[1]	(7)	(101)
Restructuring liability at end period		1,365	926
Severance
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period		190	657
Provisions		1,706	752
Cash paid		(524)	(1,118)
Reversals	[1]	(7)	(101)
Restructuring liability at end period		1,365	190
Other Members
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period		736	1,335
Provisions		253	589
Cash paid		(989)	(1,188)
Reversals	[1]	0	0
Restructuring liability at end period		$ 0	$ 736

[1] Reversals result from the unused outplacement services and operating costs.