Segment Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015
Segment Reporting [Abstract]
Adjusted EBITDA	$ 130.6pah_AdjustedEBITDA	$ 45.9pah_AdjustedEBITDA
Income tax expense	(24.7)us-gaap_IncomeTaxExpenseBenefit	(2.1)us-gaap_IncomeTaxExpenseBenefit
Interest expense	(40.4)us-gaap_InterestExpense	(7.8)us-gaap_InterestExpense
Depreciation and amortization expense	(47.9)	(16.9)
Manufacturer's profit in inventory adjustment	(36.1)	(12.0)
Acquisition transaction costs	(31.3)	0	(22.9)
Non-cash fair value adjustment to contingent consideration	(2.7)	(13.0)
Foreign exchange gains on foreign denominated external and internal debt	24.1	0
Other income (expense)	1.7pah_OtherIncomeExpense	(1.5)pah_OtherIncomeExpense
Net loss attributable to stockholders	$ (26.7)us-gaap_NetIncomeLoss	$ (7.4)us-gaap_NetIncomeLoss

Represents adjusted EBITDA.

No definition available.

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- Definition

Foreign Currency Transaction Gain (Loss) On Foreign External And Internal Debt

+ References

No definition available.

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- Definition

This element represents the amount of adjustment recorded for the manufacturer's profit in inventory.

+ References

No definition available.

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- Definition

Represents other reconciling income (expense).

+ References

No definition available.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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