Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (1,661)		$ (4,214)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	19,160		18,514
Non-cash interest expense, net	4,637		4,082
Non-cash change in fair-value	(5,501)		710
Change in deferred revenue	(39,512)		(43,423)
Deferred income taxes	(751)		(2,801)
Share-based compensation	2,003		2,096
Other	1,108		624
(Increase) decrease in assets:
Receivables	2,664		1,725
Deferred charges and other assets	(1,658)		642
Increase (decrease) in liabilities:
Accounts payable	(2,477)		6,169
Accrued compensation and other expenses	(5,071)		(13,404)
Accrued taxes payable and other tax contingencies	174		(1,501)
Net cash used in operating activities	(26,885)		(30,781)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of short-term investments	(110,378)		(707)
Sales of short-term investments	23,701		183,809
Purchases of property and equipment	(1,603)		(1,584)
Capitalized patent costs	(6,256)		(8,481)
Net cash provided by (used in) investing activities	(94,536)		173,037
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from exercise of stock options	778		2
Payments on long-term debt	(94,909)	$ (221,100)	0
Proceeds from non-controlling interests	0		10,333
Dividends paid	(10,747)		(11,629)
Taxes withheld upon restricted stock unit vestings	(725)		(4,097)
Repurchase of common stock	(349)		(108,986)
Net cash used in financing activities	(105,952)		(114,377)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(227,373)		27,879
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	757,098	$ 516,612	488,733
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 529,725		$ 516,612