XML 77 R61.htm IDEA: XBRL DOCUMENT v3.7.0.1

Financial Information Related to Operations by Segment (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2017 USD ($) T	Mar. 31, 2016 USD ($) T	Mar. 31, 2015 USD ($) T
Segment Reporting Information [Line Items]
Revenues	$ 278,663	$ 302,395	$ 332,658	$ 297,504	$ 252,132	$ 277,409	$ 328,988	$ 284,963	$ 1,211,220	$ 1,143,492	$ 1,066,368
Less: Joint Venture Revenues									(105,916)	(107,458)	(126,220)
Operating Earnings									356,570	273,028	302,301
Corporate General and Administrative Expense									(33,940)	(37,193)	(30,751)
Acquisition, Litigation and Other Expense									(5,480)		(6,880)
Earnings Before Interest and Income Taxes									317,150	235,835	264,670
Interest Expense, Net									(22,631)	(16,583)	(11,743)
Earnings before Income Taxes	54,181	$ 83,689	$ 89,373	$ 67,276	52,322	$ 68,205	$ 42,840	$ 55,885	294,519	219,252	252,927
Capital Expenditures									56,938	89,563	111,573
Depreciation, Depletion and Amortization									91,791	97,105	76,299
Identifiable Assets	2,247,124				1,883,635				2,247,124	1,883,635	1,880,326
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									1,396,252	1,324,812	1,258,121
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues									(79,116)	(73,862)	(65,533)
Other, net [Member]
Segment Reporting Information [Line Items]
Operating Earnings									2,139	2,328	3,201
Capital Expenditures									697		135
Identifiable Assets	22,018				27,616				22,018	27,616	23,390
Cement [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									$ 566,321	$ 528,499	$ 488,644
Cement Sales Volume | T									4,871	4,778	4,799
Operating Earnings									$ 153,525	$ 137,854	$ 117,527
Capital Expenditures									32,790	20,262	27,086
Depreciation, Depletion and Amortization									36,727	33,400	31,839
Identifiable Assets	1,234,617				819,994				$ 1,234,617	$ 819,994	$ 777,956
Cement [Member] | Operating Segments [Member] | Wholly-Owned [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume | T									3,934	3,903	3,744
Operating Earnings									$ 111,139	$ 98,771	$ 72,560
Cement [Member] | Operating Segments [Member] | Joint Venture [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume | T									937	875	1,055
Operating Earnings									$ 42,386	$ 39,083	$ 44,967
Cement [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues									(15,781)	(13,939)	(9,598)
Gypsum Wallboard [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									473,651	461,457	437,514
Operating Earnings									159,866	159,352	145,871
Capital Expenditures									11,393	4,832	7,129
Depreciation, Depletion and Amortization									18,728	19,988	20,092
Identifiable Assets	379,414				392,523				379,414	392,523	403,279
Paperboard [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									167,065	149,192	142,690
Operating Earnings									37,601	32,153	31,512
Capital Expenditures									3,996	5,542	1,888
Depreciation, Depletion and Amortization									8,425	8,312	8,251
Identifiable Assets	124,356				127,371				124,356	127,371	123,519
Paperboard [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues									(62,073)	(59,001)	(55,060)
Oil and Gas Proppants [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									34,623	57,591	81,381
Operating Earnings									(14,633)	(68,466)	(2,546)
Capital Expenditures									1,534	40,144	61,484
Depreciation, Depletion and Amortization									18,255	27,227	8,839
Identifiable Assets	376,306				409,497				376,306	409,497	455,572
Concrete and Aggregates [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues									154,592	128,073	107,892
Operating Earnings									18,072	9,807	6,736
Capital Expenditures									6,528	18,783	13,851
Depreciation, Depletion and Amortization									7,931	6,260	5,533
Identifiable Assets	$ 110,413				$ 106,634				110,413	106,634	96,610
Concrete and Aggregates [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues									(1,262)	(922)	(875)
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization									$ 1,725	$ 1,918	$ 1,745

X

- Definition

Acquisition litigation and other expense.

+ References

No definition available.

+ Details

Name:	exp_AcquisitionLitigationAndOtherExpense
Namespace Prefix:	exp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Earnings before interest and taxes.

+ References

No definition available.

+ Details

Name:	exp_EarningsBeforeInterestAndTaxes
Namespace Prefix:	exp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Sales revenue from joint venture.

+ References

No definition available.

+ Details

Name:	exp_SalesRevenueFromJointVenture
Namespace Prefix:	exp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Cement sales volumes in tons.

+ References

No definition available.

+ Details

Name:	exp_SalesVolume
Namespace Prefix:	exp_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_Assets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

+ Details

Name:	us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.9)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_InterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesRevenueGoodsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=exp_CementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=exp_WhollyOwnedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=exp_GypsumWallboardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=exp_PaperboardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=exp_OilAndGasProppantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=exp_ConcreteAndAggregatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: