Subsequent Events (Details) - Subsequent Event [Member] - USD ($)	3 Months Ended
	Dec. 31, 2016	Oct. 31, 2016
Subsequent Event [Line Items]
Ownership Percentage by STT		18.00%
stock conversion ratio		1.4286
cash consideration per share		$ 26.50
Business Acquisition, Date of Acquisition Agreement	Oct. 31, 2016