Goodwill and Other Intangible Assets - Goodwill Narrative (Details) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2015 USD ($) Rate	Dec. 31, 2015 USD ($) number Rate
Goodwill [Line Items]
Number of Reporting Units \| number		10
Goodwill, Impairment Loss \| $		$ 74,110
Energy Reporting Unit [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss \| $	$ 70,900
Engine Products Reporting Unit [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss \| $	$ 3,200
Goodwill [Member]
Goodwill [Line Items]
Number of Reporting Units \| number		9
Fair Value Inputs, Valuation Method, Weighting Percentage Used, Income-Based Approach	75.00%	75.00%
Fair Value Inputs, Valuation Method, Weighting Percentage Used, Market-Based Approach	25.00%	25.00%
Fair Value Inputs, Long-term Revenue Growth Rate	3.00%
Goodwill [Member] \| Maximum [Member]
Goodwill [Line Items]
Fair Value Inputs, Discount Rate	14.50%
Goodwill [Member] \| Minimum [Member]
Goodwill [Line Items]
Fair Value Inputs, Discount Rate	11.00%

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Fair Value Inputs, Valuation Method, Weighting Percentage Used, Market-Based Approach

+ References

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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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.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Reporting Unit
-URI http://asc.fasb.org/extlink&oid=6523643

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