CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 653.5	$ 506.7	$ 1,297.0	$ 1,011.6
Operating costs and expenses
Operating costs (excluding depreciation and amortization and including stock-based compensation—Note 8)	232.0	179.9	467.7	353.7
Selling, general and administrative expenses (including stock-based compensation—Note 8)	121.6	104.7	249.9	210.3
Depreciation and amortization	195.9	131.4	380.0	269.9
Total operating costs and expenses	549.5	416.0	1,097.6	833.9
Operating income	104.0	90.7	199.4	177.7
Other expenses
Interest expense	(73.1)	(53.7)	(146.7)	(107.0)
Loss on extinguishment of debt			(4.9)
Foreign currency gain/(loss) on intercompany loans	3.1	(17.4)	13.9	(28.6)
Other income/(expense), net	0.4	0.4	1.3	0.2
Total other expenses, net	(69.6)	(70.7)	(136.4)	(135.4)
Income from operations before income taxes	34.4	20.0	63.0	42.3
Provision for income taxes	22.9	0.2	28.3	6.8
Net income	$ 11.5	$ 19.8	$ 34.7	$ 35.5
Weighted-average shares used to compute net income per share:
Basic	247.4	243.1	246.9	242.9
Diluted	249.3	245.6	249.2	244.9
Net income per share:
Basic	$ 0.05	$ 0.08	$ 0.14	$ 0.15
Diluted	$ 0.05	$ 0.08	$ 0.14	$ 0.14