Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
OPERATING ACTIVITIES:
Net income	$ 66,854	$ 72,081	$ 92,555
Reconciliation of net income to net cash provided by (used in) operating activities:
Depreciation and amortization	16,357	13,282	8,094
Stock-based compensation expense	19,665	16,930	14,436
Excess tax benefits from stock-based compensation	(2,310)	(2,812)	(8,046)
Allowance for doubtful accounts	334	1,216	80
Provision for excess and obsolete inventories	15,729	9,384	5,930
Share of loss from equity investee	303	0	0
Foreign currency exchange loss (gain)	1,274	(1,339)	(830)
Deferred income taxes, net	(5,434)	(5,212)	(3,576)
Changes in operating assets and liabilities:
Accounts receivable, net (including changes in related party balances of $(6,828), $80, and $492 in fiscal years 2017, 2016, and 2015, respectively)	(149,455)	53,575	(78,186)
Inventories	(235,590)	7,709	(177,557)
Prepaid expenses and other assets (including changes in related party balances of $(3,705), $652, and $(10,274) in fiscal years 2017, 2016, and 2015, respectively)	(2,856)	(23,539)	(11,326)
Accounts payable (including changes in related party balances of $10,987, $(21,887), and $22,188 in fiscal years 2017, 2016, and 2015, respectively)	135,320	(65,835)	81,701
Income taxes payable	(1,873)	(386)	8,979
Accrued liabilities (including changes in related party balances of $3,096, $(340), and $1,364 in fiscal years 2017, 2016, and 2015, respectively)	27,555	12,911	13,893
Other long-term liabilities (including changes in related party balances of $4,900, $0, and $0 in fiscal years 2017, 2016, and 2015, respectively)	17,939	20,022	7,728
Net cash provided by (used in) operating activities	(96,188)	107,987	(46,125)
INVESTING ACTIVITIES:
Purchases of property, plant and equipment (including payments to related parties of $(4,570), $(4,641), and $(4,070) in fiscal years 2017, 2016, and 2015, respectively)	(29,365)	(34,108)	(35,100)
Change in restricted cash	(340)	(1,020)	(416)
Investment in a privately held company	0	0	(661)
Net cash used in investing activities	(29,705)	(35,128)	(36,177)
FINANCING ACTIVITIES:
Proceeds from debt, net of debt issuance costs	207,029	34,200	84,900
Repayment of debt	(140,452)	(34,100)	(36,000)
Payments to acquire treasury stock	(18,461)	0	0
Proceeds from exercise of stock options	10,878	12,186	23,338
Excess tax benefits from stock-based compensation	2,310	2,812	8,046
Payments of obligations under capital leases	(253)	(189)	(134)
Advances (payments) under receivable financing arrangements	227	(21)	33
Payment of withholding tax on vesting of restricted stock units	(3,554)	(1,786)	(175)
Net cash provided by financing activities	57,724	13,102	80,008
Effect of exchange rate fluctuations on cash	(45)	(61)	(268)
Net increase (decrease) in cash and cash equivalents	(68,214)	85,900	(2,562)
Cash and cash equivalents at beginning of year	178,820	92,920	95,482
Cash and cash equivalents at end of year	110,606	178,820	92,920
Supplemental disclosure of cash flow information:
Cash paid for interest	2,082	1,632	933
Cash paid for taxes, net of refunds	30,809	36,951	30,671
Non-cash investing and financing activities:
Equipment purchased under capital leases	314	299	442
Unpaid property, plant and equipment purchases (including due to related parties of $1,168, $2,246 and$724 as of June 30, 2017, 2016 and 2015, respectively)	5,056	10,849	7,062
Contribution of certain technology rights to equity investee	$ 7,000	$ 0	$ 0