v2.3.0.11

Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 28,081	$ 11,087
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	3,336	2,842
Amortization of investment premiums	6,291	2,713
Stock-based compensation	6,940	4,412
Excess tax benefit from employee stock option plans	(4,491)	(3,652)
Changes in operating assets and liabilities:
Accounts receivable—net	63	(5,255)
Inventory—net	(1,455)	(3,002)
Deferred tax assets	(5,546)	(2)
Prepaid expenses and other current assets	(2,101)	(1,534)
Deferred cost of revenues	(1,976)	223
Other assets	(1,762)	(66)
Accounts payable	355	2,352
Accrued liabilities	3,660	283
Accrued payroll and compensation	357	2,686
Deferred settlement and other liabilities	3,170	0
Deferred revenue	20,544	23,592
Income taxes payable	14,826	3,533
Net cash provided by operating activities	74,244	39,766
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of investments	(287,659)	(191,806)
Maturities and sales of investments	211,845	44,176
Purchases of property and equipment	(1,450)	(2,229)
Payment made in connection with business acquisition, net	(2,623)	0
Net cash used in investing activities	(79,887)	(149,859)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	11,219	12,541
Offering costs paid in connection with Initial Public Offering	0	(872)
Excess tax benefit from employee stock option plans	4,491	3,652
Net cash provided by financing activities	15,710	15,321
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	1,093	(1,251)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	11,160	(96,023)
CASH AND CASH EQUIVALENTS—Beginning of period	66,859	212,458
CASH AND CASH EQUIVALENTS—End of period	78,019	116,435
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid (refunded) for income taxes	(1,017)	1,228
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Purchase of property and equipment not yet paid	$ 124	$ 232

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