Summary of Significant Accounting Policies - Assets held for sale (Details) $ in Thousands	3 Months Ended
Mar. 31, 2015 USD ($)
Land and Other Inventories
Transfer from assets held for sale to land and other inventories and property and equipment	$ 4,051

Value of assets held-for-sale transferred to land and other inventories and property and equipment in noncash transactions.

No definition available.

Name:	avhi_TransferOfAssetsHeldForSaleToLandAndOtherInventoriesAndPropertyAndEquipment
Namespace Prefix:	avhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration