Acquisitions and Divestitures	6 Months Ended
Jun. 30, 2012
Acquisitions and Divestitures [Abstract]
ACQUISITIONS AND DIVESTITURES	NOTE 13: ACQUISITIONS AND DIVESTITURES During the first quarter of 2011, we acquired ten ready-mixed concrete facilities for 432,407 shares of common stock valued at the closing date price of $42.85 per share (total consideration of $18,529,000 net of acquired cash). We issued 372,992 shares to the seller at closing and retained the remaining shares to fulfill certain working capital adjustments and indemnification obligations. As a result of this acquisition, we recognized $6,419,000 of amortizable intangible assets, none of which is expected to be deductible for income tax purposes. The amortizable intangible assets consist of contractual rights in place and are amortized over an estimated weighted-average period of 20 years.

Acquisitions and Divestitures

6 Months Ended

Jun. 30, 2012

Acquisitions and Divestitures [Abstract]

NOTE 13: ACQUISITIONS AND DIVESTITURES

During the first quarter of 2011, we acquired ten ready-mixed concrete facilities for 432,407 shares of common stock valued at the closing date price of $42.85 per share (total consideration of $18,529,000 net of acquired cash). We issued 372,992 shares to the seller at closing and retained the remaining shares to fulfill certain working capital adjustments and indemnification obligations. As a result of this acquisition, we recognized $6,419,000 of amortizable intangible assets, none of which is expected to be deductible for income tax purposes. The amortizable intangible assets consist of contractual rights in place and are amortized over an estimated weighted-average period of 20 years.