Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2020		Mar. 31, 2019	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 16,834		$ 30,998
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	20,957		19,074
Operatingleaserightofuseassetamortization	2,305		0
Provision for doubtful accounts	5		2,096
Provision for warranty and returns	(821)		2,692
Stock compensation	6,939		6,209
Loss on disposal of property and equipment	562		12,682
Bond premium amortization	34		28
Debt Issuance Costs amortization	72		72
Change in fair value of contingent earn-out	0		(7,700)
Inventory Recall Expense	2,626		0
Sparepartsusage	4,900		6,362
Other Noncash Income (Expense)	876		(1,991)
Cash provided by (used in) changes in operating assets and liabilities
Accounts receivable	899		(49,534)
Inventories	19,372		(11,968)
Prepaid expenses and other assets	2,634		10,319
Increase (Decrease) in Other Operating Assets	(6,402)		(7,542)
Accounts payable	(35,063)		3,075
Accrued liabilities	465		(34,814)
Income taxes, including excess tax benefits and deferred income taxes	2,325		(1,068)
Net cash provided by operating activities	39,519		(21,010)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(25,463)		(28,671)
Proceeds from sale of asset	131		16
Intangible assets additions	(1,958)		(1,949)
Purchases of investment securities	(7,082)		(4,409)
Proceeds from sale of investment securities	10,900		24,500
Net cash used in investing activities	(23,472)		(10,513)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	560		925
Payment, Tax Withholding, Share-based Payment Arrangement	12,174		18,157
Net cash (used in) provided by financing activities	138,386		(17,232)
Proceeds from Lines of Credit	150,000		0
Effect of exchange rate changes on cash	(3,546)		18
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	150,887		(48,737)
CASH AND CASH EQUIVALENTS, beginning of period	268,670	[1]	344,781	$ 344,781
CASH AND CASH EQUIVALENTS, end of period	419,557		$ 296,044
NON-CASH INVESTING ACTIVITIES
Capital Expenditures Incurred but Not yet Paid	$ 7,112			$ 13,131

[1] December 31, 2019 balances were derived from audited consolidated financial statements.