Consolidated Statements of Cash Flow (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Operating activities:
Consolidated net income (loss)	$ (7,575)	$ (10,864)	$ 20,144
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of intangible assets	18,239	10,131	7,224
Depreciation and amortization of property and equipment	23,219	19,499	16,818
Accretion of discount and issuance costs on notes	12,146	11,333	5,233
Provision for (recovery of) doubtful accounts	200	(1,067)	(1,309)
Share-based compensation	57,193	35,974	19,607
Revaluation of contingent consideration	(7,274)	4,034	0
Deferred income taxes	(179)	1,253	11,502
Excess tax benefits from share-based compensation	(848)	(234)	(283)
Gain (loss) from equity investments	2,649	890	0
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	(20,136)	(11,343)	(4,804)
Deferred costs and other assets	(13,428)	(14,819)	(10,085)
Accounts payable	1,665	2,986	1,849
Accrued liabilities	12,345	17,567	3,462
Deferred revenues	15,369	11,623	10,895
Net cash provided by operating activities	93,585	76,963	80,253
Investing activities:
Purchases of investments	(542,871)	(425,449)	(438,924)
Maturities of investments	527,380	541,388	281,513
Increase (decrease) in customer funding liabilities, net of changes in restricted cash	(8,523)	(26,776)	11,588
Investment in and loans to unconsolidated affiliates	(23,708)	(46,271)	(2,000)
Capital expenditures	(30,725)	(27,932)	(18,596)
Payments for acquisitions, net of cash acquired	(68,266)	(42,424)	(3,623)
Payments of contingent consideration related to Etap Acquisition	(5,275)	0	0
Net cash used in investing activities	(151,988)	(27,464)	(170,042)
Financing activities:
Proceeds from borrowings on senior convertible notes	0	0	245,153
Proceeds from warrant, net	0	0	49,716
Investments in consolidated joint venture by noncontrolling interest	0	1,152	0
Payments on repurchase of common stock	(1,451)	(1,601)	0
Net proceeds from share-based equity award activity	2,817	1,980	8,361
Proceeds from employee stock purchase plan activity	2,304	1,855	1,401
Minimum tax withholding on restricted stock awards	(14,200)	(11,936)	(4,232)
Excess tax benefits from share-based compensation	848	234	283
Repayments on capital leases	0	(199)	(1,129)
Net cash (used in) provided by financing activities	(9,682)	(8,515)	299,553
Effect of foreign currency exchange rate changes on cash and cash equivalents	202	75	149
Net increase (decrease) in cash and cash equivalents	(67,883)	41,059	209,913
Cash and cash equivalents at beginning of period	370,157	329,098	119,185
Cash and cash equivalents at end of period	302,274	370,157	329,098
Supplemental cash flow information:
Cash paid for interest	7,188	7,367	106
Income tax (receipts) payments, net	797	(833)	1,832
Common stock issued in connection with acquisition	$ 0	$ 44,759	$ 0