Business acquisition contingent consideration, key assumptions, discount rate.

No definition available.

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- Definition

Business acquisition fair value of contingent purchase price consideration reduction.

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Business acquisition percentage of equity interests acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Business Acquisition Preliminary Working Capital And Other Adjustments

+ References

No definition available.

+ Details

Name:	hrg_BusinessAcquisitionPreliminaryWorkingCapitalAndOtherAdjustments
Namespace Prefix:	hrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Change in Working Capital and Other Assets (Net)

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liabilities, Net

+ References

No definition available.

+ Details

Name:	hrg_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilitiesNet
Namespace Prefix:	hrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business Combination Purchase Consideration Transferred

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Gas Gathering Assets

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
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Period Type:	instant

- Definition

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Oil And Natural Gas Properties

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

effective income tax rate assumption

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Finite Lived Intangible Assets Estimated Useful Life

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	xbrli:durationItemType
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Period Type:	duration

- Definition

Percentage Of Beneficial Ownership

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
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Balance Type:	na
Period Type:	duration

- Definition

Percentage Of Ownership Interest

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

residual growth rate

+ References

No definition available.

+ Details

Name:	hrg_Residualgrowthrate
Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Retention rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Revenue growth rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Royalty rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	hrg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate expected value at the end of their useful life of a major finite-lived intangible asset class acquired during the period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

+ Details

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Period Type:	instant

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

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Period Type:	duration

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

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-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to inventory acquired in connection with a business combination for which the initial accounting was incomplete.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1500-128463

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to property, plant, and equipment acquired in connection with a business combination for which the initial accounting was incomplete.

+ References

+ Details

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Period Type:	duration

- Definition

Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

The amount of inventory recognized as of the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of liabilities assumed at the acquisition date.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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Period Type:	instant

- Definition

Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 6.I)

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-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

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Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the identifiable intangible asset established upon acquisition based on a favorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.15)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Period Type:	instant

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

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Period Type:	duration

- Definition

This element represents a liability associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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Period Type:	duration

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

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Period Type:	duration

- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Period Type:	duration

Acquisitions - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended				12 Months Ended				12 Months Ended								0 Months Ended			0 Months Ended				0 Months Ended		0 Months Ended				0 Months Ended				0 Months Ended				0 Months Ended				0 Months Ended							0 Months Ended		0 Months Ended										3 Months Ended		12 Months Ended			12 Months Ended			12 Months Ended		3 Months Ended	12 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Dec. 13, 2013 FGL	Sep. 30, 2014 HGI	Sep. 30, 2013 HGI	Sep. 30, 2012 HGI	Feb. 14, 2013 Compass	Sep. 30, 2014 Minimum	Sep. 30, 2014 Maximum	Sep. 30, 2014 Technology assets Minimum	Sep. 30, 2014 Technology assets Maximum	Sep. 30, 2014 Trade names Minimum	Sep. 30, 2014 Trade names Maximum	Sep. 30, 2014 Customer relationships Minimum	Sep. 30, 2014 Customer relationships Maximum	Apr. 08, 2013 Hardware Acquisition Business Combination Measurement Period Adjustment	Sep. 30, 2014 Hardware Acquisition Business Combination Measurement Period Adjustment	Apr. 08, 2013 Hardware Acquisition Business Combination Measurement Period Adjustment	Dec. 17, 2012 HHI Business	Sep. 30, 2014 HHI Business	Sep. 30, 2013 HHI Business	Dec. 17, 2012 HHI Business	Dec. 07, 2012 HHI Business Technology assets	Dec. 17, 2012 HHI Business Technology assets	Dec. 07, 2012 HHI Business Technology assets Minimum	Dec. 07, 2012 HHI Business Technology assets Maximum	Dec. 07, 2012 HHI Business Trade name license agreement	Dec. 17, 2012 HHI Business Trade name license agreement	Dec. 07, 2012 HHI Business Trade name license agreement Minimum	Dec. 07, 2012 HHI Business Trade name license agreement Maximum	Dec. 07, 2012 HHI Business Trade Name	Dec. 17, 2012 HHI Business Trade Name	Dec. 07, 2012 HHI Business Trade Name Minimum	Dec. 07, 2012 HHI Business Trade Name Maximum	Dec. 07, 2012 HHI Business Customer relationships	Dec. 17, 2012 HHI Business Customer relationships	Dec. 07, 2012 HHI Business Customer relationships Minimum	Dec. 07, 2012 HHI Business Customer relationships Maximum	Dec. 07, 2012 HHI Business Trademarks and trade names	Dec. 17, 2012 HHI Business Trademarks and trade names	Dec. 07, 2012 HHI Business Trademarks and trade names Minimum	Dec. 07, 2012 HHI Business Trademarks and trade names Maximum	Nov. 08, 2013 Shaser Biosciences, Inc.	Sep. 30, 2014 Shaser Biosciences, Inc.	Nov. 08, 2013 Shaser Biosciences, Inc.	Sep. 30, 2013 Shaser Biosciences, Inc.	Nov. 08, 2012 Shaser Biosciences, Inc.	Nov. 08, 2013 Shaser Biosciences, Inc. Noncontrolling Interest	Sep. 30, 2013 Shaser Biosciences, Inc. Noncontrolling Interest	Nov. 08, 2013 Shaser Biosciences, Inc. Technology assets	Sep. 30, 2013 Shaser Biosciences, Inc. Business Combination Measurement Period Adjustment	Feb. 14, 2013 Compass EXCO	Feb. 14, 2013 Compass HGI	Feb. 14, 2013 Compass	Feb. 14, 2013 Compass HGI Energy Holdings, LLC	Feb. 14, 2013 Compass EXCO/HGI General Partner	Mar. 05, 2013 Cotton-Valley Oil and Gas Properties HGI	Mar. 05, 2013 Cotton-Valley Oil and Gas Properties Compass	Apr. 06, 2011 FGLH	Dec. 31, 2010 BlackFlag	Oct. 31, 2011 BlackFlag	Sep. 30, 2012 FURminator	Dec. 22, 2011 FURminator	Jan. 02, 2014 The Liquid Fence Company [Member]	Sep. 30, 2014 The Liquid Fence Company [Member] Technology assets	Jan. 02, 2014 The Liquid Fence Company [Member] Technology assets	Jan. 02, 2014 The Liquid Fence Company [Member] Trade names	Sep. 30, 2014 The Liquid Fence Company [Member] Customer relationships	Jan. 02, 2014 The Liquid Fence Company [Member] Customer relationships	Jun. 30, 2014 FOHG [Member]	Sep. 30, 2014 FOHG [Member]	May 30, 2014 FOHG [Member]	Sep. 30, 2014 FOHG [Member] Minimum	Sep. 30, 2014 FOHG [Member] Maximum	Sep. 30, 2014 FOH [Member]	Sep. 30, 2014 CorAmerica [Member]	May 30, 2014 CorAmerica [Member]
Business Acquisition [Line Items]
Percentage Of Ownership Interest				80.40%																																									44.00%																																34.00%
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																																																																		17 years			15 years
Goodwill (Note 13)	$ 1,524.8	$ 1,476.7	$ 694.2																$ 10.1			$ 717.8	$ 662.1																								$ 67.2	$ 63.9				$ 3.3										$ 15.9		$ 68.5	$ 7.0								$ 43.9
Deferred tax liability - long-term																			9.8			116.4	104.7																																																		0
Property, plant and equipment																			(2.9)			138.4	104.5																																							0.4		0.7									1.2
Goodwill, Purchase Accounting Adjustments																	7.7
Inventory adjustment to fair value																				31.0
Property, plant and equipment, net adjustment to fair value																				10.0
Intangible asset																		(2.0)	(2.0)		(489.1)	(489.1)	(470.0)																								(29.3)	(35.5)				6.2															(20.5)	(5.1)		(1.3)
Estimated sales growth rate																										2.50%	31.00%			2.50%	5.00%			2.50%	15.50%			2.50%	15.50%			2.50%	5.00%						3.00%		3.00%
Customer retention rate																																					95.00%
Estimated Income tax rate	35.00%																							35.00%				35.00%						17.00%	35.00%			17.00%	35.00%	35.00%									35.00%		35.00%
Discounted rate																								12.00%				12.00%				12.00%				12.00%				12.00%									17.00%		11.00%
Carrying value, intangible asset																									51.0				13.0				4.1				90.0				331.0
Amortization period, intangible asset									1 year	20 years	4 years	17 years	1 year	12 years	15 years	20 years												5 years				8 years				20 years
Royalty rate																										4.00%	5.00%	4.00%						1.00%	3.50%							3.00%	5.00%								10.50%																							0.25%	8.00%
Expected terminal year growth rate																																								2.50%
Remaining legal life																								10 years
Deferred tax liabilities, net																				123.6
Business Acquisition Percentage Of Equity Interests Acquired																																																					24.50%	74.40%		73.50%	2.00%
Business Combination Purchase Consideration Transferred																																																					725.0	349.8	574.8
Non-controlling interest																			1.7			3.9	2.2																								39.1	39.0		39.1		0.1	119.1																				8.3
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Change in Working Capital and Other Assets (Net)																	7.0
Preliminary working capital and other adjustments																																																						30.5
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill																																																														25.0		79.0	26.9								41.7
Inventory																			0.1			208.4	207.2																																							2.5			2.2								12.4
Business combination, assets acquired																			(16.1)			661.2	629.4																								21.6	24.7				(3.1)		694.5	517.6			130.7	97.4
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Oil And Natural Gas Properties																																																						697.3	519.5			138.1	102.9
Other long-term liabilities																			0.4			19.7	11.2																															(24.8)	(18.5)			(7.4)	(5.5)
Cash consideration	27.2	2,014.8	185.1
Business Acquisition Fair Value Of Contingent Purchase Price Consideration Reduction																																																												0
Acquisition related charges					4.2	12.7	3.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Gas Gathering Assets								21.5
Business Combination, Consideration Transferred																																												49.7																	43.8		141.8
Business Acquisition, Purchase Price Allocation, Current Assets (Deprecated 2013-01-31)																																																																9.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities																																																																15.7	1.6								81.7
Payments to Acquire Businesses, Gross	1.5																																											50.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest																			(7.7)			1,375.1	1,289.3																								49.7	49.6				0.1													35.8								13.5
Business Combination, Liabilities Arising from Contingencies, Amount Recognized																																																																	1.5
Business Acquisition, Percentage of Voting Interests Acquired																																														56.00%																											62.00%					17.00%
Percentage Of Beneficial Ownership																																																																												88.60%
Treasury Stock Acquired, Average Cost Per Share	$ 12.62																																																																						$ 0.27
residual growth rate																																																																								3.00%
effective income tax rate assumption																																																																								39.30%
Fair Value Inputs, Discount Rate																																																																								16.00%
Off-market Lease, Unfavorable																																																																									0
Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross																																																																									$ 0