CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income (loss)	$ (15,171)	$ (24,469)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,598	2,503
Stock-based compensation	3,171	1,329
Equity in net loss of Rhapsody	0	6,180
Deferred income taxes, net	(128)	(77)
Loss (gain) on investments, net	(3)	(299)
Fair value of warrants granted in 2015, net of subsequent mark to market adjustments in 2016 and 2015	44	(1,155)
Trade accounts receivable	(487)	(654)
Prepaid expenses and other assets	1,322	621
Accounts payable	(2,106)	(62)
Accrued and other liabilities	(451)	(4,011)
Net cash provided by (used in) operating activities	(11,211)	(20,094)
Cash flows from investing activities:
Purchases of equipment, software, and leasehold improvements	(828)	(306)
Proceeds from sale of available for sale securities	0	352
Purchases of short-term investments	(17,876)	(6,018)
Proceeds from sales and maturities of short-term investments	23,401	33,077
Decrease (increase) in restricted cash equivalents and investments, net	(210)	0
Advance to Rhapsody	0	(5,000)
Net cash provided by (used in) investing activities	4,487	22,105
Cash flows from financing activities:
Proceeds from issuance of common stock (stock options and stock purchase plan)	16	6
Tax payments from shares withheld upon vesting of restricted stock	(787)	(7)
Net cash provided by (used in) financing activities	(771)	(1)
Effect of exchange rate changes on cash and cash equivalents	719	(2,269)
Net increase (decrease) in cash and cash equivalents	(6,776)	(259)
Cash and cash equivalents, beginning of period	47,315	103,253
Cash and cash equivalents, end of period	40,539	102,994
Supplemental disclosure of cash flow information:
Cash received from income tax refunds	389	229
Cash paid for income taxes	624	229
Non-cash investing activities:
Increase (decrease) in accrued purchases of equipment, software, and leasehold improvements	44	49
Acquisition of intangible assets	$ 0	$ 473

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- Definition

The cash inflow from sales, maturities, prepayments, calls and collections of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration