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Subsequent Event	3 Months Ended
Subsequent Event	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event As a result of customer deposits received after the end of the quarter, cash, cash equivalents, and restricted cash increased to $45.8 million as of January 31, 2017, compared to cash, cash equivalents, and restricted cash of $26.9 million, as of December 31, 2016.