Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 40,013	$ 105,825
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,990	4,811
Loss (gain) on disposition of assets	(16)	40
Share-based compensation expense	19,028	13,792
Bad debt expense	13,959	21,793
Accreted interest on note receivable		(1,333)
Unrecognized tax benefits	1,088	2,600
Excess tax benefit from share-based compensation	(2,629)	(592)
Gain on remeasurement of foreign currency	(535)
Deferred income taxes	1,891	(1,826)
Changes in operating assets and liabilities:
Prepaid expenses	(773)	1,807
Trade accounts receivable	(13,886)	(11,597)
Other receivables	(1,561)	(172)
Prepaid taxes	8,007
Inventory	3,746
Accounts payable	(6,245)	(536)
Accrued liabilities	(15,233)	1,510
Deferred revenue	734	1,909
Net cash provided by operating activities	59,578	138,031
Cash flows from investing activities:
Capital expenditures for equipment and leasehold improvements	(17,448)	(8,098)
Restricted cash	(21,603)
Purchases of marketable investment securities	(22,623)	(102,661)
Proceeds from maturities and sales of marketable investment securities	80,502	113,032
Net cash provided by investing activities	18,828	2,273
Cash flows from financing activities:
Net proceeds from common stock issued under share-based compensation plans	20,195	6,362
Excess tax benefit from share-based compensation	2,629	592
Repurchase and retirement of common stock	(103,952)	(180,124)
Net cash used in financing activities	(81,128)	(173,170)
Effect of foreign exchange rates on cash and cash equivalents	(2,390)	392
Net decrease in cash and cash equivalents	(5,112)	(32,474)
Cash and cash equivalents at beginning of period	64,821	104,073
Cash and cash equivalents at end of period	$ 59,709	$ 71,599