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Inventories (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Inventory Net [Line Items]
Encumbered Inventory	$ 8,726

Inventories encumbered by the volumetric production payment

No definition available.

Name:	vmc_EncumberedInventory
Namespace Prefix:	vmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	vmc_InventoryNetLineItems
Namespace Prefix:	vmc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration