Property and Equipment (Tables)

12 Months Ended

Jun. 30, 2015

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment, including assets held under capital leases, was comprised of the following (in millions):

	Estimated
	useful lives	As of June 30,
	(in years)	2015			2014
Land	N/A	$	16.2		$	0.7
Building leasehold and site improvements	15 to 20		109.2			64.7
Furniture, fixtures and office equipment	3 to 7		5.1			5.7
Computer hardware	3 to 5		15.1			16.7
Software	3		8.3			9.3
Machinery and equipment	5 to 7		272.1			94.9
Fiber optic equipment	8		623.3			583.7
Circuit switch equipment	10		12.1			11.8
Packet switch equipment	5		76.2			62.8
Fiber optic network	15 to 20		2,715.4			2,450.8
Construction in progress	N/A		437.1			259.0
Total			4,290.1			3,560.1
Less accumulated depreciation			(990.9	)		(737.7	)
Property and equipment, net		$	3,299.2		$	2,822.4