Goodwill (Tables)

3 Months Ended

Sep. 30, 2016

Goodwill [Abstract]

Schedule of Goodwill

The following reflects the changes in the carrying amount of goodwill during the three months ended September 30, 2016:

Product Group	As of June 30, 2016		Foreign Currency Translation and Other		As of September 30, 2016
	(in millions)
Dark Fiber	$	295.1	$	(2.6)	$	292.5
Waves		258.3		(1.2)		257.1
Sonet		51.3		—		51.3
Ethernet		104.3		—		104.3
IP		87.5		—		87.5
MIG		73.6		—		73.6
zColo		268.8		—		268.8
Cloud		60.0		—		60.0
Other		15.6		(0.1)		15.5
Total	$	1,214.5	$	(3.9)	$	1,210.6