Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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Amount of asset recognized arising from contingent consideration in a business combination.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Summary of Operations and Significant Accounting Policies (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended		0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Mar. 14, 2014 Virtual Moment, LLC	Sep. 30, 2014 Virtual Moment, LLC	Mar. 14, 2014 Virtual Moment, LLC	Mar. 14, 2014 Virtual Moment, LLC Trade name	Mar. 14, 2014 Virtual Moment, LLC Customer relationships	Mar. 14, 2014 Virtual Moment, LLC Developed technology
Acquisition of Virtual Moment, LLC
Initial cash payment	$ 10,056		$ 10,056
Contingent consideration					2,360
Allocation of preliminary aggregate purchase price to assets acquired and liabilities assumed
Intangible assets:						500	2,800	600
Goodwill	10,186	1,423			8,763
Total assets acquired					836
Total liabilities assumed					(1,083)
Total					12,416
Weighted average life of identifiable intangible assets			7 years
Professional fees				$ 400