STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Cash flows from operating activities:
Net (loss) income	$ (6,637)		$ 194,185
Income and gain from discontinued operations	0		179,002
(Loss) income from continuing operations	(6,637)		15,183
Adjustments to reconcile (loss) income from continuing operations to net cash (used in) provided by operating activities:
Depreciation	2,555		2,858
Amortization and write-off of debt issuance costs	269		1,851
Share-based compensation	1,965		4,737
Write-down of property and equipment	0		895
Loss on disposal of fixed assets	61		0
Gain on sale of marketable securities	(80)		(128)
Changes in operating assets and liabilities	(3,127)		14,625
Net cash (used in) provided by operating activities of continuing operations	(4,994)		40,021
Net cash provided by operating activities of discontinued operations	0		436
Net cash (used in) provided by operating activities	(4,994)		40,457
Cash flows from investing activities:
Proceeds from sale of business, net	0		262,608
Purchases of property and equipment	(530)		(397)
Proceeds from sales of fixed assets	4		0
Proceeds from sales and maturities of marketable securities	18,043		44,034
Purchases of marketable securities	(759)		(1,544)
Net cash provided by investing activities of continuing operations	16,758		304,701
Net cash used in investing activities of discontinued operations	0		(105)
Net cash provided by investing activities	16,758		304,596
Cash flows from financing activities:
Repurchases of common stock	(96,054)		(18,136)
Proceeds from issuance of common stock	5,563		25,289
Withholding taxes – share-based compensation	(894)		(3,328)
Redemptions from employee stock purchase plan, net	(42)		(138)
Net cash (used in) provided by financing activities	(91,427)		3,687
Net (decrease) increase in cash and cash equivalents	(79,663)		348,740
Cash and cash equivalents at beginning of period	397,530	[1]	50,440
Cash and cash equivalents at end of period	$ 317,867		$ 399,180

[1] Condensed from audited financial statements.