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Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 2,439,438	$ 2,072,776
Accumulated Depreciation	(892,601)	(817,465)
Property, Plant and Equipment, net	1,546,837	1,255,311
Land And Quarries [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	402,698	384,688
Plants [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,820,908	1,498,387
Buildings Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	175,526	165,086
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 40,306	$ 24,615

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Publisher FASB
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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