Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 31, 2017	Mar. 31, 2017
Accounting Policies [Abstract]
Tax benefit realized from exercise of stock options	$ 0.4	$ 0.4

Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount

No definition available.

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