Summary of Significant Accounting Policies and Basis of Presentation - Intangible Assets (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Impairment charges	$ 0	$ 0	$ 0
Research and development costs	3,500,000	3,000,000	3,100,000
Goodwill, Impairment Loss	$ 0	$ 0	$ 0
Software Developed for Internal Use \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Software development costs, estimated useful life	3 years
Software Developed for Internal Use \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Software development costs, estimated useful life	7 years
Software Development
Finite-Lived Intangible Assets [Line Items]
Software development costs, estimated useful life	3 years

Asset Impairment Charges Excluding Charges for Software Development

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

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
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Research and development expense during the period related to the costs of developing and achieving technological feasibility of a computer software product to be sold, leased, or otherwise marketed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preliminary Project Stage
-URI http://asc.fasb.org/extlink&oid=6521637

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6523717

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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