Segment Reporting (Tables)

6 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Summary of Financial Information by Segments

The Company’s computation of Segment Adjusted EBITDA may not be comparable to other similarly titled measures computed by other companies because all companies do not calculate segment Adjusted EBITDA in the same fashion.

	As of and for the Three months ended  December 31, 2015
	Dark Fiber Solutions		Network Connectivity		Colocation and Cloud Infrastructure		Other		Corp/ Eliminations		Total
	(in millions)
Revenue from external customers	$	137.7	$	168.7	$	58.5	$	4.7	$	—	$	369.6
Segment Adjusted EBITDA		99.1		89.9		29.0		0.9		—		218.9
Total assets		3,078.3		1,900.7		1,027.2		34.4		232.9		6,273.5
Capital expenditures		109.2		48.1		15.1		—		—		172.4

	As of and for the Six months ended December 31, 2015
	Dark Fiber Solutions		Network Connectivity		Colocation and Cloud Infrastructure		Other		Corp/ Eliminations		Total
	(in millions)
Revenue from external customers	$	272.7	$	335.7	$	116.8	$	11.2	$	—	$	736.4
Segment Adjusted EBITDA		195.7		178.6		57.4		2.6		—		434.3
Capital expenditures		202.7		94.8		34.1		—		—		331.6

	As of and for the Three months ended  December 31, 2014
	Dark Fiber Solutions		Network Connectivity		Colocation and Cloud Infrastructure		Other		Corp/ Eliminations		Total
	(in millions)
Revenue from external customers	$	129.7	$	161.7	$	27.0	$	5.5	$	—	$	323.9
Segment Adjusted EBITDA		89.6		85.6		13.4		1.1		—		189.7
Total assets		2,652.1		1,766.3		250.1		36.1		284.6		4,989.2
Capital expenditures		69.7		52.5		7.3		—		—		129.5

	As of and for the Six months ended December 31, 2014
	Dark Fiber Solutions		Network Connectivity		Colocation and Cloud Infrastructure		Other		Corp/ Eliminations		Total
	(in millions)
Revenue from external customers	$	257.1	$	321.9	$	53.9	$	11.6	$	—	$	644.5
Segment Adjusted EBITDA		174.8		168.7		26.7		2.5		—		372.7
Capital expenditures		127.8		98.8		18.2		—		—		244.8

	As of June 30, 2015
	Dark Fiber Solutions		Network Connectivity		Colocation and Cloud Infrastructure		Other		Corp/ Eliminations		Total
	(in millions)
Total assets	$	2,830.1	$	1,807.7	$	1,032.6	$	35.0	$	389.2	$	6,094.6

Reconciliation from net earnings/(loss) to Adjusted EBITDA by segment and on a consolidated basis

Reconciliation from Total Segment Adjusted EBITDA to net loss from operations:

	Three months ended  December 31,
	2015		2014
		(in millions)
Total Segment Adjusted EBITDA	$	218.9	$	189.7
Interest expense		(51.2)		(53.4)
Depreciation and amortization expense		(113.7)		(96.9)
Transaction costs		(3.3)		(1.3)
Stock-based compensation		(42.9)		6.0
Loss on extinguishment of debt		—		(30.9)
Unrealized foreign currency loss on intercompany loans		(7.1)		(13.3)
Non-cash loss on investments		(0.4)		(0.5)
Income/(loss) from operations before income taxes	$	0.3	$	(0.6)

	Six months ended December 31,
	2015		2014
		(in millions)
Total Segment Adjusted EBITDA	$	434.3	$	372.7
Interest expense		(105.0)		(100.3)
Depreciation and amortization expense		(230.8)		(192.9)
Transaction costs		(3.3)		(4.8)
Stock-based compensation		(89.0)		(117.1)
Loss on extinguishment of debt		—		(30.9)
Unrealized foreign currency loss on intercompany loans		(17.8)		(27.9)
Non-cash loss on investments		(0.6)		(0.5)
Income/(loss) from operations before income taxes	$	(12.2)	$	(101.7)