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Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2017

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

Cost by major category and accumulated depreciation are summarized as follows:

		March 31,
		2017				2016
		(dollars in thousands)
Land and Quarries		$	402,698			$	384,688
Plants			1,820,908				1,498,387
Buildings, Machinery and Equipment			175,526				165,086
Construction in Progress			40,306				24,615
			2,439,438				2,072,776
Accumulated Depreciation			(892,601	)			(817,465	)
		$	1,546,837			$	1,255,311

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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