Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities
Net loss	$ (25,220)	$ (6,171)
Adjustments to reconcile net loss to net cash (used) provided by operating activities:
Depreciation and amortization	4,228	4,948
Stock compensation expense	5,462	8,228
Provision for inventory allowance	8,101	2,052
Provision for doubtful accounts	(1)	226
Deferred tax benefit	0	(2,438)
Incremental tax benefit from exercise of common stock options	0	138
Impairment of long-lived assets	1,028	0
Change in fair value of financial instruments	(749)	0
Changes in operating assets and liabilities:
Accounts receivable	(1,274)	(2,997)
Inventory	633	(2,371)
Prepaid and deferred taxes	1,356	33,938
Prepaid expenses and other assets	981	(1,919)
Accounts payable	2,036	(988)
Accrued expenses and other current liabilities	(13,422)	7,907
Distributions payable	8,208	(998)
Customer payables	(4,971)	(785)
Other liabilities	(662)	(134)
Net cash (used) provided by operating activities	(14,266)	38,636
Investing activities
Increase in intangibles	(78)	(46)
Purchases of property and equipment, including capitalized software	(6,210)	(4,587)
Net cash used in investing activities	(6,288)	(4,633)
Financing activities
Proceeds from exercise of common stock options (net of tax)	93	0
Incremental tax benefit from exercise of common stock options	0	(138)
Net cash provided (used) by financing activities	93	(138)
Effect of exchange rate differences on cash and cash equivalents	(117)	535
Net (decrease) increase in cash and cash equivalents	(20,578)	34,400
Cash and cash equivalents at beginning of period	134,513	95,465
Cash and cash equivalents at end of period	113,935	129,865
Supplemental disclosure of cash flow information
Cash paid (received) for income taxes, net	$ (931)	$ (34,001)