Goodwill

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



	SMP		AMS		MDS			Total
Balance at June 30, 2018	$	119,560	$	218,147	$	159,735		$	497,442
Goodwill adjustment for the Themis acquisition	—		—		(700		)	(700		)
Goodwill arising from the Germane acquisition					23,847			23,847
Balance at September 30, 2018	$	119,560	$	218,147	$	182,882		$	520,589

In the three months ended September 30, 2018, there were no triggering events, as defined by ASC 350, Intangibles - Goodwill and Other, which required an interim goodwill impairment test. The Company performs its annual goodwill impairment test in the fourth quarter of each fiscal year.