Restrictions on equity-based instruments during the vesting period, such as the inability to transfer unvested awards, are not taken into account in estimating the fair value of the award. However, restrictions that remain in effect after an award is vested, such as the inability to transfer or hedge vested options or a prohibition on the sale of outstanding vested shares (or other type of equity) for a period of time, affect the estimate of an award's fair value.

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-SubTopic 10

-Section 50

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Weighted average expected volatility rate of share-based compensation awards.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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-SubTopic 10

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Stock-based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assertions (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend Yield	0.00%
2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term	6 years
2014 Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term	6 years
Volatility	22.22%
Dividend Yield	0.00%
Discount Rate	1.79%
2013 Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term		7 years 9 months 22 days	7 years 9 months 22 days
Volatility		28.28%	28.61%
Dividend Yield		0.00%	0.00%
Discount Rate		2.21%	2.13%