Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue:	$ 251,654	$ 228,003	$ 466,235	$ 415,860
Income (Loss) from continuing operations before income taxes:	12,814	25,316	39,541	12,127
Income tax provision	3,660	7,743	11,580	8,911
Net income from continuing operations	9,154	17,573	27,961	3,216
Total	(858)	3,750	4,190	(14,510)
Diversified industrial
Segment Reporting Information [Line Items]
Revenue:	193,271	168,546	331,253	304,033
Income (Loss) from continuing operations before income taxes:	15,853	20,215	25,422	24,989
Total	(459)	4,714	5,041	5,404
Energy
Segment Reporting Information [Line Items]
Revenue:	35,610	51,924	74,495	97,083
Income (Loss) from continuing operations before income taxes:	(15,921)	9,183	(23,013)	12,576
Total	5,445	2,874	3,335	1,441
Financial services
Segment Reporting Information [Line Items]
Revenue:	15,484	8,023	27,660	14,989
Income (Loss) from continuing operations before income taxes:	10,479	5,172	17,823	9,250
Corporate and other
Segment Reporting Information [Line Items]
Revenue:	7,289	(490)	32,827	(245)
Income (Loss) from continuing operations before income taxes:	2,403	(9,254)	19,309	(34,688)
Total	$ (5,844)	$ (3,838)	$ (4,186)	$ (21,355)

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Name Regulation S-X (SX)

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-Article 5

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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