XML 27 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Segment Information - Summarized Financial Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Segment Reporting Information [Line Items] |  |
Revenues | $ 1,762,574 | $ 1,585,710
Operating income (loss) | 90,495 | 119,291
Depreciation | 36,865 | 31,880
Electric Power [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 1,278,168 | 1,180,983
Operating income (loss) | 144,412 | 132,550
Depreciation | 17,564 | 14,923
Oil And Gas Infrastructure Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 445,857 | 358,932
Operating income (loss) | (21,172) | 10,357
Depreciation | 13,215 | 11,265
Fiber Optic Licensing and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 38,549 | 45,795
Operating income (loss) | 12,109 | 16,883
Depreciation | 4,318 | 4,051
Corporate and Non-Allocated Costs [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating income (loss) | (44,854) | (40,499)
Depreciation | $ 1,768 | $ 1,641

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + 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=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
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 Aggregate revenue during the period from services rendered in the normal course of business, after deducting 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(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_SalesRevenueServicesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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