Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating activities:
Net income (loss)	$ 27.0	$ (7.5)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss (income) from discontinued operations	(0.1)	0.4
Depreciation and amortization	133.4	128.4
Amortization of loan costs	4.4	3.2
Accretion of principal on notes	2.2	5.2
Acquisition related expenses	0.1	12.6
Stock compensation	4.9	4.6
Deferred income taxes	7.0	(5.9)
Debt extinguishment costs	0	38.9
Other	1.2	(1.1)
Changes in operating assets and liabilities	(92.9)	(172.2)
Net cash provided by (used in) operating activities — continuing operations	87.2	6.6
Net cash provided by (used in) operating activities - discontinued operations	0.1	(0.4)
Net cash provided by (used in) operating activities	87.3	6.2
Investing activities:
Acquisitions and related expenses, net of cash acquired	(7.2)	(208.8)
Capital expenditures	(187.2)	(137.2)
Proceeds from sale of investments in securities	76.1	42.3
Purchases of investments in securities	(79.1)	(30.4)
Net reimbursements from restricted cash and escrow fund	17.8	0
Other investing activities	1.3	(0.7)
Net cash used in investing activities	(178.3)	(334.8)
Financing activities:
Payments of long-term debt and capital lease obligations	(5.5)	(460.7)
Proceeds from issuance of common stock	0	67.5
Payments of IPO related costs	0	(6.9)
Payments of tender premiums on note redemption	0	(27.6)
Other financing activities	(1.2)	(1.6)
Net cash provided by (used in) financing activities	(6.7)	(429.3)
Net increase (decrease) in cash and cash equivalents	(97.7)	(757.9)
Cash and cash equivalents, beginning of period	455.5	936.6
Cash and cash equivalents, end of period	357.8	178.7
Supplemental cash flow information:
Net cash paid for interest	93.8	81.0
Net cash paid for income taxes	$ 4.4	$ 0.6