Income Taxes - Uncertain Tax Positions (Details)	6 Months Ended
Jun. 30, 2016 USD ($)
Reconciliation of unrecognized tax benefits details [Abstract]
Unrecognized tax benefits increase (decrease)

The net amount of all increases and decreases in unrecognized tax benefits for the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Name:	us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration