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Business Combination, Goodwill and Intangibles Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Total finite and indefinite-lived intangible assets, gross	$ 11,070	$ 5,674
Accumulated amortization	(3,174)	(1,964)
Intangible assets, net (excluding goodwill)	7,896	3,710
Amortization of Intangible Assets	1,210	547
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2014	1,258
2015	1,120
2016	925
2017	851
2018	778
Thereafter	2,964
Finite-lived intangible assets, future amortization expense	7,896
Proprietary Software
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, gross	$ 4,341	2,961
Patents and Technology
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	10 years
Finite-lived intangible assets, gross	$ 5,850	2,070
Other
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, gross	$ 324	$ 208
Minimum
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Minimum | Proprietary Software
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Minimum | Other Intangible Assets [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Minimum | tradename [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Maximum
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	10 years
Maximum | Proprietary Software
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	15 years
Maximum | Other Intangible Assets [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Maximum | tradename [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	7 years

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
-Paragraph 2
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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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