ACQUISITIONS AND DIVESTITURES (Narrative) (Details) (USD $)
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3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 9 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | ||||||||||||
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Sep. 30, 2014
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Jun. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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Dec. 31, 2013
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Sep. 30, 2013
Aggregates
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Jun. 30, 2013
Aggregates
property
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Mar. 31, 2013
Aggregates
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Sep. 30, 2013
Concrete
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Jun. 30, 2013
Concrete
property
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Sep. 30, 2014
Cement And Concrete [Member]
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Mar. 31, 2014
Cement And Concrete [Member]
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Sep. 30, 2014
Contractual Rights
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Mar. 31, 2014
Previously mined and subsequently reclaimed tract of land [Member]
Aggregates
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Jan. 31, 2014
Unimproved land previously containing a sales yard [Member]
Aggregates
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Mar. 31, 2014
Unimproved land previously containing a sales yard [Member]
Aggregates
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Sep. 30, 2014
Aggregates production facilities [Member]
CALIFORNIA
property
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Sep. 30, 2014
Aggregates production facilities [Member]
Aggregates
Arizona And New Mexico [Member]
property
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Sep. 30, 2014
Aggregates production facilities [Member]
Aggregates
DELAWARE
property
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Dec. 31, 2013
Land containing 136 million tons of aggregates reserves [Member]
T
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Mar. 31, 2013
Two aggregates production facilities [Member]
property
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Significant Acquisitions and Disposals [Line Items] | ||||||||||||||||||||||
Number of facilities acquired | 4 | 4 | 5 | 2 | 2 | |||||||||||||||||
Payment for acquisition of businesses | $ 268,604,000 | $ 89,951,000 | $ 29,983,000 | $ 59,968,000 | ||||||||||||||||||
Amortizable intangible assets recognized | 5,425,000 | 41,576,000 | 3,620,000 | |||||||||||||||||||
Estimated weighted-average amortization period of intangible assets | 50 years | 20 years | 20 years | |||||||||||||||||||
Intangible assets amortization period, tax purposes | 15 years | 15 years | 15 years | |||||||||||||||||||
Cash proceeds from divestiture | 719,089,000 | 51,604,000 | 34,743,000 | 5,133,000 | ||||||||||||||||||
Gain on sale of properties and businesses | 1,002,000 | 9,350,000 | 238,527,000 | 36,869,000 | 21,183,000 | 2,802,000 | 9,027,000 | 227,910,000 | 168,000 | 5,790,000 | ||||||||||||
Supply agreement period | 20 years | |||||||||||||||||||||
Aggregates reserves acquired | 136,000,000 | |||||||||||||||||||||
Purchases of property, plant & equipment | 169,220,000 | 117,310,000 | 117,000,000 | |||||||||||||||||||
Property, plant & equipment | 6,608,342,000 | 6,792,470,000 | 6,608,342,000 | 6,792,470,000 | 6,933,602,000 | |||||||||||||||||
Proceeds from sale of property, plant & equipment | 21,320,000 | 14,974,000 | 11,261,000 | 10,727,000 | 5,820,000 | |||||||||||||||||
Gross proceeds from sale of future production | 154,000,000 | |||||||||||||||||||||
Transaction costs | 905,000 | |||||||||||||||||||||
Number of facilities divested | 4 | |||||||||||||||||||||
Capital gains with deferred income taxes | 145,000,000 | 145,000,000 | ||||||||||||||||||||
Common stock issued in connection with business acquisitions | 698,108 | 16,896 | ||||||||||||||||||||
Total consideration | 721,359,000 | |||||||||||||||||||||
Goodwill of dispositions | $ 4,521,000 | $ 674,000 |