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Fair Value of Financial Instruments (Details) - Recurring basis - Level 1 - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds included in cash and cash equivalents	$ 57,741	$ 33,241
Current portion of due from related parties related to share based payment awards	4,977	4,267
Long term portion of due from related parties related to share based payment awards	7,754	6,446
Current portion of accounts payable, accrued expenses and deposits related to share based payment awards	4,977	4,267
Long term portion of employer compensation liability related to share based payment awards	$ 7,754	$ 6,446

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Fair value of current portion of trade and related party payables, accrued expenses and deposits related to share based payment awards.

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Fair value of noncurrent portion of amount due from related parties related to share based payment awards.

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Fair value of noncurrent portion of employer compensation liability related to share based payment awards.

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Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities which is included in cash and cash equivalents

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