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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate number of common shares reserved for future issuance.

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer).

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No definition available.

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Number of units distributed for payment of a unit distribution to unit-holder of a limited liability company (LLC).

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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No definition available.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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Reclassification of common unit liability to additional paid in capital.

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Vesting date.

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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Millions			3 Months Ended					6 Months Ended		12 Months Ended
	Oct. 16, 2014	Oct. 09, 2014	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reclassification of common unit liability to additional paid in capital										$ 490.2
Vesting date								May 15, 2017
Common stock distributed in connection with non-liquidating distribution		20,460,047
Adjustment to additional paid in capital fair value adjustment share based compensation awards			$ 12.4					$ 12.4
PCIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incentive plan termination period	10 years
Vested Portion of Part A Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense			$ 10.2				$ 2.6	$ 20.2	$ 2.6
Part A Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit unvested			1,746,847		933,217			1,746,847		933,217
Common stock distributed for existing share holders							146,001		146,001
Unrecognized compensation cost			$ 18.7					$ 18.7
Award recorded as liability			$ 2.0		$ 1.9			$ 2.0		$ 1.9
Number of RSUs, Granted								1,024,991
Part B Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized			1,449,860	1,426,812	1,490,023	1,388,280	2,222,048	1,449,860	2,222,048	1,490,023
Common unit unvested			830,607		1,249,873			830,607		1,249,873
Common stock distributed for existing share holders							2,210,534		2,210,534
Total stock-based compensation expense			$ 6.0				$ 4.7	$ 22.4	$ 4.7
Unrecognized compensation cost			$ 8.2					$ 8.2
Number of RSUs, Granted			282,074	272,813	316,353	359,658	575,660	554,887
Part C Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense			$ 0.3					$ 0.5
Number of RSUs, Granted								18,826
CII [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized			625,000,000					625,000,000
Unrecognized compensation cost			$ 37.5					$ 37.5
Common stock distributed in exchange for vested preferred units		256,265
CII [Member] \| IPO [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit unvested		29,555
CII [Member] \| Common Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit unvested		6,353,302
Common stock distributed for existing share holders		10,294,867
Total stock-based compensation expense							$ 13.3		$ 109.8
CII [Member] \| Common and Preferred Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense			$ 26.4					$ 45.9