Goodwill (Tables)

12 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The following table sets forth the changes in the carrying amount of goodwill by reporting unit for the year ended June 30, 2018:

	SMP		AMS		MDS		Total
Balance at June 30, 2017	$	116,003	$	217,956	$	46,887	$	380,846
Goodwill adjustment for the CES acquisition	291		—		—		291
Goodwill adjustment for the Delta acquisition	—		191		—		191
Goodwill arising from the RTL acquisition	3,266		—		—		3,266
Goodwill arising from the Themis acquisition	—		—		112,848		112,848
Balance at June 30, 2018	$	119,560	$	218,147	$	159,735	$	497,442