OTHER COMPREHENSIVE INCOME (Changes In AOCI Net Of Tax) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Net of Tax, Beginning Balance	$ (99,631)
Other comprehensive income (loss) before reclassifications	2,942	[1]
Amounts reclassified from AOCI	1,763
Net current period OCI changes	4,705		4,286
AOCI, Net of Tax, Ending Balance	(94,926)		(221,231)
Reclassification Adjustment for Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Net of Tax, Beginning Balance	(25,178)
Other comprehensive income (loss) before reclassifications	0	[1]
Amounts reclassified from AOCI	2,985
Net current period OCI changes	2,985
AOCI, Net of Tax, Ending Balance	(22,193)
Amortization of Pension and Postretirement Plan Actuarial Loss and Prior Service Cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Net of Tax, Beginning Balance	(74,453)
Other comprehensive income (loss) before reclassifications	2,942	[1]
Amounts reclassified from AOCI	(1,222)
Net current period OCI changes	1,720
AOCI, Net of Tax, Ending Balance	$ (72,733)

[1] Remeasurement of the postretirement obligation as a result of the March 2014 sale of our cement and concrete businesses in the Florida area (see Note 16).