Business Combinations and Assets Held for Sale - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Combinations And Assets Held For Sale [Line Items]
Acquisition-related expenses, net	$ 2,092	$ 5,280	$ 3,696	$ 15,060
Texas Industries Inc.
Business Combinations And Assets Held For Sale [Line Items]
Acquisition date			Jul. 01, 2014
Total revenues from operations included in the consolidated statement of earnings	243,837		$ 467,896
Total earnings from operations included in the consolidated statement of earnings	25,242		33,936
Acquisition-related expenses, net	$ 2,135	$ 5,265	$ 3,586	$ 14,991

Business combinations and assets held for sale.

No definition available.

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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