The amount of acquisition cost of a business combination allocated to customer related intangible assets of the acquired entity.

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- Definition

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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- Definition

Aggregate amount of intangible asset amortization recognized as expense during the period.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

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- Definition

The average useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275

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- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

+ Details

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- Definition

Sum of the carrying amounts (original costs for current and prior period additions adjusted for impairment, if any) as of the balance sheet date of intangible assets, excluding goodwill, having a projected indefinite period of benefit.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

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-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

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Goodwill and Other Intangibles (Details 2) (USD $)			3 Months Ended		3 Months Ended			3 Months Ended				3 Months Ended		9 Months Ended
Goodwill and Other Intangibles (Details 2) (USD $)	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Trade names Y	Dec. 31, 2010 Trade names	Sep. 30, 2011 Ross Smith Energy Group Ltd. ("RSEG") Customer related intangibles Y	Sep. 30, 2011 Customer related intangibles Y	Dec. 31, 2010 Customer related intangibles	Sep. 30, 2011 Proprietary software Y	Dec. 31, 2010 Proprietary software	Sep. 30, 2011 Trading rights	Dec. 31, 2010 Trading rights	Sep. 30, 2011 Other	Sep. 30, 2010 Other	Sep. 30, 2011 Other	Sep. 30, 2010 Other	Dec. 31, 2010 Other	Sep. 30, 2011 POSIT trade name	Jun. 03, 2011 Ross Smith Energy Group Ltd. ("RSEG")
Other Intangible Assets
Gross Carrying Amount	$ 59,419,000	$ 52,392,000	$ 10,400,000	$ 10,400,000		$ 27,851,000	$ 20,901,000	$ 20,876,000	$ 20,876,000	$ 242,000	$ 165,000	$ 50,000		$ 50,000		$ 50,000
Accumulated Amortization	18,699,000	15,608,000	1,229,000	1,036,000		3,943,000	2,571,000	13,527,000	12,001,000
Customer related intangible asset																		6,950,000
Useful lives (in years)			5.0		10	7.8		17.6
Other intangible assets not subject to amortization	8,700,000																8,400,000
Amortization expense of other intangible assets												$ 1,100,000	$ 700,000	$ 3,100,000	$ 2,100,000