v2.4.0.6

Cash and cash equivalents and marketable securities (Tables)

12 Months Ended

Dec. 31, 2012

Cash and cash equivalents and marketable securities

Schedule of cash and cash equivalents, and marketable securities

		December 31,
		2012			2011
Cash and cash equivalents:
Cash		$	16,677		$	12,851
Money market accounts			39,001			81,082
Marketable securities			2,460			—
Total cash and cash equivalents		$	58,138		$	93,933
Short-term marketable securities—available-for-sale:
Marketable securities		$	41,558		$	—
Total short-term marketable securities		$	41,558		$	—

X

- Details

Name:	us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration