Financing Arrangements (Other Information, Condensed Consolidating Statements of Cash Flows) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Operating activities:
Net income (loss)	$ 69.1	$ 55.9	$ (8.4)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	(0.1)	0.5	5.9
Depreciation and amortization	257.1	258.3	193.8
Amortization of loan costs	9.2	6.9	6.3
Accretion of principal on senior discount notes	4.0	7.3	23.1
Acquisition related expenses	8.1	14.0	12.5
Stock compensation	6.4	9.2	4.8
Deferred income taxes	22.5	15.5	3.1
Gain (loss) on disposal of assets	(13.3)	0.6	(0.2)
Debt extinguishment costs	2.1	38.9	0
Other	0.4	(0.2)	(0.4)
Equity in earnings of subsidiaries	0	0	0
Accounts receivable, net	65.9	(177.7)	(82.2)
Inventories	(4.8)	(5.9)	(1.3)
Prepaid expenses and other current assets	60.4	(79.4)	56.5
Accounts payable	10.6	46.4	30.4
Accrued expenses and other liabilities	(196.9)	(76.2)	38.6
Net cash provided by operating activities — continuing operations	300.7	114.1	282.5
Net cash provided by (used in) operating activities — discontinued operations	0.1	(0.5)	(5.9)
Net cash provided by operating activities	300.8	113.6	276.6
Investing activities:
Acquisitions and related expenses, net of cash acquired	(15.4)	(212.9)	(464.9)
Capital expenditures	(420.5)	(293.3)	(206.5)
Net sales of investments	(2.9)	11.8	129.0
Net deposits to restricted cash and escrow fund	17.0	(20.5)	0
Other investing activities	15.7	1.7	(2.5)
Net cash used in investing activities	(406.1)	(513.2)	(544.9)
Financing activities:
Payments of long-term debt and capital lease obligations	(22.0)	(553.1)	(10.6)
Cash proceeds from issuance of notes	300.0	452.2	1,011.2
Dividends to equity holders	0	0	(447.2)
Payments of debt issuance costs	(2.8)	(10.5)	(25.9)
Proceeds from issuance of common stock	0	67.5	450.0
Payments of IPO related costs	0	(6.9)	(26.9)
Payments of tender premiums on note redemption	(0.5)	(27.6)	0
Other financing activities	(0.9)	(3.1)	(3.3)
Cash provided by (used in) intercompany activity	0	0	0
Net cash provided by (used in) financing activities	273.8	(81.5)	947.3
Net increase (decrease) in cash and cash equivalents	168.5	(481.1)	679.0
Cash and cash equivalents, beginning of period	455.5	936.6	257.6
Cash and cash equivalents, end of period	624.0	455.5	936.6
Parent [Member]
Operating activities:
Net income (loss)	61.9	57.3	(12.0)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	0	0	0
Depreciation and amortization	0	0	0
Amortization of loan costs	0	0	0
Accretion of principal on senior discount notes	0	0	0
Acquisition related expenses	0	0	0
Stock compensation	6.4	9.2	4.8
Deferred income taxes	22.5	15.5	3.1
Gain (loss) on disposal of assets	0	0	0
Debt extinguishment costs	0	0	0
Other	0	0	0
Equity in earnings of subsidiaries	(109.5)	(89.1)	(1.7)
Accounts receivable, net	0	0	0
Inventories	0	0	0
Prepaid expenses and other current assets	0	0	0
Accounts payable	0	0	0
Accrued expenses and other liabilities	18.7	7.1	5.8
Net cash provided by operating activities — continuing operations	0	0	0
Net cash provided by (used in) operating activities — discontinued operations	0	0	0
Net cash provided by operating activities	0	0	0
Investing activities:
Acquisitions and related expenses, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Net sales of investments	0	0	0
Net deposits to restricted cash and escrow fund	0	0
Other investing activities	0	0	0
Net cash used in investing activities	0	0	0
Financing activities:
Payments of long-term debt and capital lease obligations	0	0	0
Cash proceeds from issuance of notes	0	0	0
Dividends to equity holders			(447.2)
Payments of debt issuance costs	0	0	0
Proceeds from issuance of common stock		67.5	450.0
Payments of IPO related costs		(6.9)	(26.9)
Payments of tender premiums on note redemption	0	0
Other financing activities	(0.4)	(0.9)	0.4
Cash provided by (used in) intercompany activity	0.4	(59.7)	23.7
Net cash provided by (used in) financing activities	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Issuers of Senior Notes and Term Debt [Member]
Operating activities:
Net income (loss)	(207.5)	(180.9)	(145.5)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	0	0	0
Depreciation and amortization	0	0	0
Amortization of loan costs	9.2	6.9	5.5
Accretion of principal on senior discount notes	3.3	2.8	2.8
Acquisition related expenses	0	0	0
Stock compensation	0	0	0
Deferred income taxes	0	0	0
Gain (loss) on disposal of assets	0	0	0
Debt extinguishment costs	1.3	0	0
Other	0	0	0
Equity in earnings of subsidiaries	0	0	0
Accounts receivable, net	0	0	0
Inventories	0	0	0
Prepaid expenses and other current assets	0	0	0
Accounts payable	0	0	0
Accrued expenses and other liabilities	0.3	22.8	9.1
Net cash provided by operating activities — continuing operations	(193.4)	(148.4)	(128.1)
Net cash provided by (used in) operating activities — discontinued operations	0	0	0
Net cash provided by operating activities	(193.4)	(148.4)	(128.1)
Investing activities:
Acquisitions and related expenses, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Net sales of investments	0	0	0
Net deposits to restricted cash and escrow fund	0	0
Other investing activities	0	0	0
Net cash used in investing activities	0	0	0
Financing activities:
Payments of long-term debt and capital lease obligations	(6.0)	(88.1)	(8.1)
Cash proceeds from issuance of notes	300.0	452.2	566.6
Dividends to equity holders			0
Payments of debt issuance costs	(2.8)	(10.5)	(5.5)
Proceeds from issuance of common stock		0	0
Payments of IPO related costs		0	0
Payments of tender premiums on note redemption	0	0
Other financing activities	0	0	0
Cash provided by (used in) intercompany activity	(97.8)	(205.2)	(424.9)
Net cash provided by (used in) financing activities	193.4	148.4	128.1
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Issuers of Senior Discount Notes [Member]
Operating activities:
Net income (loss)	(1.6)	(43.4)	(32.9)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	0	0	0
Depreciation and amortization	0	0	0
Amortization of loan costs	0	0	0.8
Accretion of principal on senior discount notes	0.7	4.5	20.3
Acquisition related expenses	0	0	0
Stock compensation	0	0	0
Deferred income taxes	0	0	0
Gain (loss) on disposal of assets	0	0	0
Debt extinguishment costs	0.8	38.9	0
Other	0	0	0
Equity in earnings of subsidiaries	0	0	0
Accounts receivable, net	0	0	0
Inventories	0	0	0
Prepaid expenses and other current assets	0	0	0
Accounts payable	0	0	0
Accrued expenses and other liabilities	0	0	11.8
Net cash provided by operating activities — continuing operations	(0.1)	0	0
Net cash provided by (used in) operating activities — discontinued operations	0	0	0
Net cash provided by operating activities	(0.1)	0	0
Investing activities:
Acquisitions and related expenses, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Net sales of investments	0	0	0
Net deposits to restricted cash and escrow fund	0	0
Other investing activities	0	0	0
Net cash used in investing activities	0	0	0
Financing activities:
Payments of long-term debt and capital lease obligations	(10.6)	(459.7)	0
Cash proceeds from issuance of notes	0	0	444.6
Dividends to equity holders			0
Payments of debt issuance costs	0	0	(20.4)
Proceeds from issuance of common stock		0	0
Payments of IPO related costs		0	0
Payments of tender premiums on note redemption	(0.5)	(27.6)
Other financing activities	0	0	0
Cash provided by (used in) intercompany activity	11.2	487.3	(424.2)
Net cash provided by (used in) financing activities	0.1	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Guarantor subsidiaries [Member]
Operating activities:
Net income (loss)	328.2	324.6	114.4
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	(0.1)	0.5	4.1
Depreciation and amortization	214.7	221.5	181.9
Amortization of loan costs	0	0	0
Accretion of principal on senior discount notes	0	0	0
Acquisition related expenses	8.1	8.1	12.5
Stock compensation	0	0	0
Deferred income taxes	0	0	0
Gain (loss) on disposal of assets	(13.3)	0.6	(0.2)
Debt extinguishment costs	0	0	0
Other	(0.1)	(0.1)	0.1
Equity in earnings of subsidiaries	0	0	0
Accounts receivable, net	67.8	(145.4)	(66.9)
Inventories	(4.7)	(9.9)	2.0
Prepaid expenses and other current assets	87.3	(49.2)	(17.1)
Accounts payable	13.8	41.8	33.3
Accrued expenses and other liabilities	(137.4)	(53.8)	76.4
Net cash provided by operating activities — continuing operations	564.3	338.7	340.5
Net cash provided by (used in) operating activities — discontinued operations	0.1	(0.5)	(4.1)
Net cash provided by operating activities	564.4	338.2	336.4
Investing activities:
Acquisitions and related expenses, net of cash acquired	(15.1)	(207.0)	(464.9)
Capital expenditures	(395.2)	(269.6)	(197.4)
Net sales of investments	0	0	114.7
Net deposits to restricted cash and escrow fund	17.0	(20.5)
Other investing activities	15.7	1.1	(2.5)
Net cash used in investing activities	(377.6)	(496.0)	(550.1)
Financing activities:
Payments of long-term debt and capital lease obligations	(2.1)	(2.5)	(2.5)
Cash proceeds from issuance of notes	0	0	0
Dividends to equity holders			0
Payments of debt issuance costs	0	0	0
Proceeds from issuance of common stock		0	0
Payments of IPO related costs		0	0
Payments of tender premiums on note redemption	0	0
Other financing activities	0	0	(0.2)
Cash provided by (used in) intercompany activity	21.8	(178.0)	661.9
Net cash provided by (used in) financing activities	19.7	(180.5)	659.2
Net increase (decrease) in cash and cash equivalents	206.5	(338.3)	445.5
Cash and cash equivalents, beginning of period	305.8	644.1	198.6
Cash and cash equivalents, end of period	512.3	305.8	644.1
Combined non-guarantors [Member]
Operating activities:
Net income (loss)	(22.4)	(28.5)	45.3
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	0	0	1.8
Depreciation and amortization	42.4	36.8	11.9
Amortization of loan costs	0	0	0
Accretion of principal on senior discount notes	0	0	0
Acquisition related expenses	0	5.9	0
Stock compensation	0	0	0
Deferred income taxes	0	0	0
Gain (loss) on disposal of assets	0	0	0
Debt extinguishment costs	0	0	0
Other	0.5	(0.1)	(0.5)
Equity in earnings of subsidiaries	0	0	0
Accounts receivable, net	(1.9)	(32.3)	(15.3)
Inventories	(0.1)	4.0	(3.3)
Prepaid expenses and other current assets	(26.9)	(30.2)	73.6
Accounts payable	(3.2)	4.6	(2.9)
Accrued expenses and other liabilities	(78.5)	(52.3)	(44.5)
Net cash provided by operating activities — continuing operations	(90.1)	(92.1)	66.1
Net cash provided by (used in) operating activities — discontinued operations	0	0	(1.8)
Net cash provided by operating activities	(90.1)	(92.1)	64.3
Investing activities:
Acquisitions and related expenses, net of cash acquired	(0.3)	(5.9)	0
Capital expenditures	(25.3)	(23.7)	(9.1)
Net sales of investments	(2.9)	11.8	14.3
Net deposits to restricted cash and escrow fund	0	0
Other investing activities	0	0.6	0
Net cash used in investing activities	(28.5)	(17.2)	5.2
Financing activities:
Payments of long-term debt and capital lease obligations	(3.3)	(2.8)	0
Cash proceeds from issuance of notes	0	0	0
Dividends to equity holders			0
Payments of debt issuance costs	0	0	0
Proceeds from issuance of common stock		0	0
Payments of IPO related costs		0	0
Payments of tender premiums on note redemption	0	0
Other financing activities	(0.5)	2.8	(8.1)
Cash provided by (used in) intercompany activity	84.4	(33.5)	172.1
Net cash provided by (used in) financing activities	80.6	(33.5)	164.0
Net increase (decrease) in cash and cash equivalents	(38.0)	(142.8)	233.5
Cash and cash equivalents, beginning of period	149.7	292.5	59.0
Cash and cash equivalents, end of period	111.7	149.7	292.5
Eliminations [Member]
Operating activities:
Net income (loss)	(89.5)	(73.2)	22.3
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Income (loss) from discontinued operations, net of taxes	0	0	0
Depreciation and amortization	0	0	0
Amortization of loan costs	0	0	0
Accretion of principal on senior discount notes	0	0	0
Acquisition related expenses	0	0	0
Stock compensation	0	0	0
Deferred income taxes	0	0	0
Gain (loss) on disposal of assets	0	0	0
Debt extinguishment costs	0	0	0
Other	0	0	0
Equity in earnings of subsidiaries	109.5	89.1	1.7
Accounts receivable, net	0	0	0
Inventories	0	0	0
Prepaid expenses and other current assets	0	0	0
Accounts payable	0	0	0
Accrued expenses and other liabilities	0	0	(20.0)
Net cash provided by operating activities — continuing operations	20.0	15.9	4.0
Net cash provided by (used in) operating activities — discontinued operations	0	0	0
Net cash provided by operating activities	20.0	15.9	4.0
Investing activities:
Acquisitions and related expenses, net of cash acquired	0	0	0
Capital expenditures	0	0	0
Net sales of investments	0	0	0
Net deposits to restricted cash and escrow fund	0	0
Other investing activities	0	0	0
Net cash used in investing activities	0	0	0
Financing activities:
Payments of long-term debt and capital lease obligations	0	0	0
Cash proceeds from issuance of notes	0	0	0
Dividends to equity holders			0
Payments of debt issuance costs	0	0	0
Proceeds from issuance of common stock		0	0
Payments of IPO related costs		0	0
Payments of tender premiums on note redemption	0	0
Other financing activities	0	(5.0)	4.6
Cash provided by (used in) intercompany activity	(20.0)	(10.9)	(8.6)
Net cash provided by (used in) financing activities	(20.0)	(15.9)	(4.0)
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	$ 0	$ 0	$ 0