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Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Convertible Debt

Convertible note balances as of June 30, 2015 consisted of the following (in thousands):

Liability component:
Principal	$	120,000
Less: unamortized debt discount and debt issuance costs	(41,762		)
Net carrying amount	$	78,238
Equity component	$	38,305

Interest Income and Interest Expense Disclosure

The following table sets forth total interest expense recognized related to the Convertible Notes during the three and six months ended June 30, 2015 (in thousands):

Contractual interest expense	$	367
Amortization of debt discount	440
Amortization of debt issuance costs	29
Total interest expense	$	836

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- Definition

Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components.

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- Definition

Tabular disclosure of interest income and expense, including, but not limited to, interest income and expense from investments, loans, and securities.

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