XML 48 R30.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Available-for-sale Securities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Summary of Available for Sale Securities | The following is a summary of available-for-sale securities at December 31, 2015 (in thousands):
|  | December 31, 2015 |
|  | Amortized Cost |  |  | Gross Unrealized Gain (Loss) |  |  | Fair Value |
Money market funds |  | $ | 59,302 |  |  | $ | — |  |  | $ | 59,302 |
Corporate debt securities |  |  | 25,747 |  |  |  | (49 | ) |  |  | 25,698 |
Marketable equity securities |  |  | — |  |  |  | 11,163 |  |  |  | 11,163 |
Total available-for-sale securities |  | $ | 85,049 |  |  | $ | 11,114 |  |  | $ | 96,163 |
The following is a summary of available-for-sale securities at December 31, 2014 (in thousands):
|  | December 31, 2014 |
|  | Amortized Cost |  |  | Gross Unrealized Loss |  |  | Fair Value |
Money market funds |  | $ | 3,912 |  |  | $ | — |  |  | $ | 3,912 |
United States government agency securities |  |  | 3,427 |  |  |  | (1 | ) |  |  | 3,426 |
Corporate debt securities |  |  | 26,118 |  |  |  | (30 | ) |  |  | 26,088 |
Total available-for-sale securities |  | $ | 33,457 |  |  | $ | (31 | ) |  | $ | 33,426 |
Available for Sale Debt Securities by Contractual Maturity | Available-for-sale securities at December 31, 2015 and 2014, consisted of the following by contractual maturity (in thousands):
|  | December 31, 2015 |  |  | December 31, 2014 |
|  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
One year or less |  | $ | 85,049 |  |  | $ | 85,000 |  |  | $ | 27,752 |  |  | $ | 27,727 |
Marketable equity securities |  |  | — |  |  |  | 11,163 |  |  |  | — |  |  |  | — |
Greater than one year and less than five years |  |  | — |  |  |  | — |  |  |  | 5,705 |  |  |  | 5,699 |
Total available-for-sale securities |  | $ | 85,049 |  |  | $ | 96,163 |  |  | $ | 33,457 |  |  | $ | 33,426 |
Available for Sale Marketable Securities in Unrealized Position | The following tables show all available-for-sale marketable securities in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):
|  | December 31, 2015 |
|  | Less than 12 Months |  |  | 12 Months or Greater |  |  | Total |
|  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
Money market funds |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Corporate debt securities |  |  | 20,170 |  |  |  | (46 | ) |  |  | 5,528 |  |  |  | (3 | ) |  |  | 25,698 |  |  |  | (49 | )
Marketable equity securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total available-for-sale securities |  | $ | 20,170 |  |  | $ | (46 | ) |  | $ | 5,528 |  |  | $ | (3 | ) |  | $ | 25,698 |  |  | $ | (49 | )
|  | December 31, 2014 |
|  | Less than 12 Months |  |  | 12 Months or Greater |  |  | Total |
|  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
Money market funds |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
United States government agency securities |  |  | 3,426 |  |  |  | (1 | ) |  |  | — |  |  |  | — |  |  |  | 3,426 |  |  |  | (1 | )
Corporate debt securities |  |  | 22,169 |  |  |  | (30 | ) |  |  | — |  |  |  | — |  |  |  | 22,169 |  |  |  | (30 | )
Total available-for-sale securities |  | $ | 25,595 |  |  | $ | (31 | ) |  | $ | — |  |  | $ | — |  |  | $ | 25,595 |  |  | $ | (31 | )

X
- Definition Tabular disclosure of fair value of investments in debt and equity securities in an unrealized loss position categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration