Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Cash flows from operating activities
Consolidated net income	$ 20,631		$ 13,014
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,885		4,152
Stock-based compensation	4,585		4,373
Excess tax benefits from share-based compensation	(2,567)		0
Amortization of intangibles	1,186		1,191
Gain on sale of investments	(11,300)		(9,339)
Equity in net loss of affiliate	215		222
Net foreign currency transaction gains	(405)		(538)
Deferred tax assets	1,736		7,197
Other non-cash items	(35)		56
Net effect of changes in current and other assets and current liabilities	(14,231)		1,582
Net cash provided by operating activities	5,700		21,910
Cash flows from investing activities
Acquisition of property and equipment	(9,928)		(17,883)
Acquisition of noncontrolling interest in consolidated subsidiary	(199)		(1,614)
Payment of license fees	(7,098)		0
Payment of holdback related to Si En acquisition	0		(4,200)
Proceeds from sale of investments	0		4,256
Increase in restricted cash	(1,000)		0
Purchases of available-for-sale securities	(1,316)		(4,330)
Sales of available-for-sale securities	22,143		22,637
Cash provided by (used in) investing activities	2,602		(1,134)
Cash flows from financing activities
Repurchases and retirement of common stock	(350)		(547)
Proceeds from issuance of stock through compensation plans	9,569		5,338
Excess tax benefit from share-based compensation	2,567		0
Proceeds from borrowings	0		4,875
Principal payments of long-term obligations	(146)		(97)
Proceeds from borrowings under short-term lines of credit	0		4,069
Principal payments of short-term lines of credit	0		(4,069)
Cash provided by financing activities	11,640		9,569
Effect of exchange rate changes on cash and cash equivalents	(470)		(616)
Net increase in cash and cash equivalents	19,472		29,729
Cash and cash equivalents at beginning of period	119,997	[1]	75,497
Cash and cash equivalents at end of period	$ 139,469		$ 105,226

[1] Derived from audited financial statements.