XML 28 R16.htm IDEA: XBRL DOCUMENT v3.8.0.1

Convertible Senior Notes (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Carrying Values and Coupon Rates on Financing Arrangements

The following table summarizes information about the equity and liability components of the 2019 Convertible Senior Notes (in thousands).

	March 31, 2018				December 31, 2017
Principal amount outstanding	$	245,000			$	245,000
Unamortized discount (including unamortized debt issuance cost)	(17,453		)		(20,471		)
Total current portion of notes payable	$	227,547			$	224,529

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 information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

+ References

No definition available.

+ Details

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