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Business and Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016 segment channel
Segment Information [Abstract]
Number of operating segments | segment	3
Number of principal distribution channels | channel	3
Office Equipment and Furniture and Fixtures | Minimum
Fixed Assets
Estimated useful life	3 years
Office Equipment and Furniture and Fixtures | Maximum
Fixed Assets
Estimated useful life	10 years
Computer software | Minimum
Fixed Assets
Estimated useful life	3 years
Computer software | Maximum
Fixed Assets
Estimated useful life	7 years

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- Definition

Number of principal distribution channels.

+ References

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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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

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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