Debt - 8.50% Senior Notes due 2019 (Details) - 8.5% Senior Notes Due 2019 - USD ($)	Jun. 30, 2014	May 18, 2017
Debt
Amount of debt repurchased		$ 45,500,000
Percentage of debt repurchased		23.00%
Purchase price of debt		$ 1,038.87
Early tender pruchase price of debt		$ 6.99
Senior Notes
Debt
Stated interest rate (percent)	8.50%
Aggregate principal amount	$ 200,000,000
Senior Notes \| Subsidiary guarantors
Debt
Consolidation, Wholly Owned Subsidiary, Parent Ownership Interest, Percentage	100.00%

The percentage of ownership of common stock or equity participation in the consolidated subsidiary.

No definition available.

Name:	avhi_ConsolidationWhollyOwnedSubsidiaryParentOwnershipInterestPercentage
Namespace Prefix:	avhi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Ratio applied for early tender to the repurchase of debt instrument per $1,000 of principal.

+ References

No definition available.

+ Details

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

- Definition

Ratio applied to the repurchase of debt instrument per $1,000 of principal.

+ References

No definition available.

+ Details

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

- Definition

Percentage amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	dei_LegalEntityAxis=us-gaap_GuarantorSubsidiariesMember
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Data Type:	na
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