COMMITMENTS AND CONTINGENCIES (Summary Of Standby Letters Of Credit) (Details) (USD $)	Jun. 30, 2013
Standby Letters of Credit
Risk management insurance	$ 34,590,000
Industrial revenue bond	14,230,000
Reclamation/restoration requirements	6,755,000
Total	$ 55,575,000

The total amount of contingent obligations under letters of credit outstanding related to reclamation/restoration requirements as of the reporting date.

No definition available.

Name:	vmc_ContractualReclamationRestorationRequirements
Namespace Prefix:	vmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant