Stock-based Compensation (Details 4) - USD ($) $ in Thousands	6 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]
Total fair value of RSUs released	$ 2,385	$ 369
Total intrinsic value of RSUs released	$ 3,071	$ 403

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.

No definition available.

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