Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Operating activities
Net (loss) income	$ (154,744,000)	$ 102,102,000	$ 104,812,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,726,000	21,402,000	11,380,000
Deferred financing costs	4,354,000	3,300,000	7,788,000
Bad debt and sales return reserve	354,000	965,000	411,000
Stock-based compensation expense	7,891,000	5,507,000	3,394,000
Inventory reserves	95,052,000	17,700,000	8,710,000
Goodwill impairment charge	263,771,000
Excess tax benefit related to stock-based incentive plans	(443,000)	(10,235,000)	(6,879,000)
Income from equity investment	(596,000)	(141,000)
Deferred income taxes	(127,035,000)	8,273,000	9,941,000
Other non-cash items	3,491,000	(5,489,000)	(321,000)
Changes in assets and liabilities
Accounts receivable	43,841,000	(38,545,000)	(26,972,000)
Income tax receivable	16,036,000	19,003,000	35,952,000
Inventories	(48,977,000)	(72,702,000)	(81,273,000)
Prepaid expenses and other assets	1,250,000	5,799,000	(3,335,000)
Accounts payable	(9,992,000)	3,099,000	19,330,000
Accrued expenses and other liabilities	3,425,000	(8,830,000)	1,071,000
Income tax payable	15,768,000	2,481,000	820,000
Net cash provided by operating activities	141,172,000	53,689,000	84,829,000
Cash flows from investing activities
Purchases of property and equipment	(9,631,000)	(10,517,000)	(7,882,000)
Proceeds from the sale of property, plant, & equipment	17,000
Acquisition of business, net of cash acquired	(250,000)	(560,986,000)
Net cash used in investing activities	(9,864,000)	(571,503,000)	(7,882,000)
Cash flows from financing activities
Proceeds from issuance of long-term debt		565,000,000	625,000,000
Repayment of long-term debt	(149,750,000)	(30,344,000)	(683,000,000)
Financing Fees		(10,161,000)	(7,274,000)
Repayment of capital lease obligations	(1,511,000)	(1,338,000)	(1,146,000)
Excess tax benefit related to stock-based incentive plans	443,000	10,235,000	6,879,000
Net proceeds from issuance of common stock	823,000	9,643,000	9,895,000
Settlement on restricted stock tax withholding	(701,000)		(8,452,000)
Net cash (used in) provided by financing activities	(150,696,000)	543,035,000	(58,098,000)
Effect of foreign currency exchange rate on cash and cash equivalents	(2,521,000)	838,000	(989,000)
Net (decrease) increase in cash and cash equivalents	(21,909,000)	26,059,000	17,860,000
Cash and cash equivalents, beginning of period	104,775,000	78,716,000	60,856,000
Cash and cash equivalents, end of period	$ 82,866,000	$ 104,775,000	$ 78,716,000