ACQUISITIONS AND DIVESTITURES (Schedule Of Business Acquisitions) (Details) (USD $) In Thousands, except Share data, unless otherwise specified				9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014 Series of Individually Immaterial Business Acquisitions [Member]
Significant Acquisitions And Disposals [Line Items]
Cash				$ 268,396
Real property				2,414
Payable to seller				2,500
Vulcan Materials Company, common stock				44,691
Total fair value of purchase consideration				318,001
Accounts and notes receivable, net				9,676
Inventories				13,767
Other current assets				25
Property, plant & equipment, net				178,784
Contractual rights in place				125,478
Deferred income taxes, net				(13,796)
Liabilities assumed				(10,329)
Remaining minority interest in a consolidated entity				600
Net identifiable assets acquired				304,205
Goodwill	$ 3,095,317	$ 3,081,521	$ 3,081,521	$ 13,796
Common stock, shares, issued	131,703,000	130,200,000	129,989,000	698,108