XML 35 R22.htm IDEA: XBRL DOCUMENT v3.7.0.1

Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Convertible Debt

The Convertible Notes consisted of the following at March 31, 2017 and December 31, 2016 (in thousands):

	March 31, 2017				December 31, 2016
Liability component:
Principal	$	120,000			$	120,000
Less: unamortized debt discount and debt issuance costs	(30,344		)		(29,092		)
Net carrying amount	$	89,656			$	90,908
Equity component	$	41,905			$	38,305

Interest Expense Summary

The following table sets forth total interest expense recognized related to the Convertible Notes during the three months ended March 31, 2017 and 2016 (in thousands):

	Three Months Ended March 31,
	2017				2016
Contractual interest expense	$	1,650			$	1,650
Amortization of debt discount	2,217				1,980
Amortization of debt issuance costs	131				132
Total interest expense	$	3,998			$	3,762

X

- 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.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

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

+ References

No definition available.

+ Details

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