Balance Sheet Details Balance Sheet Detail - Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2016	Dec. 31, 2015
Debt Issuance Costs [Abstract]
Loss Contingency, damages Awarded, Value 2	$ 14,632	$ 0
Other Assets, Current	6,887	8,137
Prepaid Expense and Other Assets	$ 21,519	$ 8,137

Amount of current assets classified as other.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_OtherAssetsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant