CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ 44,841	$ (27,100)	$ 2,128
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	16,959	16,895	23,401
Stock-based compensation	8,123	11,747	12,203
Loss (gain) on equipment, software, and leasehold improvements	2,509	(62)	(41)
Equity in net loss of Rhapsody	5,709	7,898	14,164
Gain on deconsolidation of Rhapsody	0	0	(10,929)
Excess tax benefit from stock option exercises	0	(74)	(48)
Accrued loss (gain) on excess office facilities	3,290	(646)	5,670
Deferred income taxes, net	20,324	(23,985)	622
Gain on sale of patent and other technology assets, net of costs of $3,647	(116,353)	0	0
Loss (gain) on sale of equity and other investments, net	(5,072)	0	9
Realized translation gain	(1,966)	0	0
Other	0	114	451
Net change in certain operating assets and liabilities:
Trade accounts receivable	11,163	6,835	4,856
Prepaid expenses and other assets	(986)	43,169	(15,425)
Accounts payable	549	(14,601)	(1,202)
Accrued and other liabilities	(22,403)	(20,898)	(66,981)
Net cash provided by (used in) operating activities	(33,313)	(708)	(31,122)
Cash flows from investing activities:
Purchases of equipment, software, and leasehold improvements	(7,170)	(9,873)	(12,904)
Proceeds from sale of patents and other technology assets, net of costs of $3,647	116,353	0	0
Proceeds from sale of equity and other investments	7,261	0	49
Purchases of short-term investments	(116,963)	(96,841)	(116,831)
Proceeds from sales and maturities of short-term investments	87,487	116,405	126,398
Decrease (increase) in restricted cash equivalents and investments, net	167	(179)	3,700
Payment in connection with the restructuring of Rhapsody	0	0	(18,000)
Repayment of temporary funding on deconsolidation of Rhapsody	0	0	5,869
Payment of acquisition costs, net of cash acquired	0	(2,888)	(5,806)
Net cash provided by (used in) investing activities	87,135	6,624	(17,525)
Cash flows from financing activities:
Proceeds from issuance of common stock (stock options and stock purchase plan)	3,802	3,177	2,678
Common stock cash dividend paid	0	(136,793)	0
Tax payments from shares withheld upon vesting of restricted stock	(995)	0	0
Excess tax benefit from stock option exercises	0	74	48
Net proceeds from sale of interest in Rhapsody	0	0	1,213
Net cash provided by (used in) financing activities	2,807	(133,542)	3,939
Effect of exchange rate changes on cash and cash equivalents	236	(2,059)	3,696
Net increase (decrease) in cash and cash equivalents	56,865	(129,685)	(41,012)
Cash and cash equivalents, beginning of year	106,333	236,018	277,030
Cash and cash equivalents, end of year	163,198	106,333	236,018
Supplemental disclosure of cash flow information:
Cash received from income tax refunds	456	10,166	29,800
Cash paid for income taxes	3,296	6,284	4,905
Non-cash investing activities:
Increase (decrease) in accrued purchases of equipment, software, and leasehold improvements	$ 212	$ 0	$ 0