Fair Value - Changes in Fair Value Levels and in Level 3 Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value
Asset transfers out of Level 1 into Level 2	$ 0	$ 0	$ 0	$ 0
Asset transfers out of Level 2 into Level 1	0	0	0	0
Asset transfers into (out of) Level 3	0	0	0	0
Liability transfers out of Level 1 into Level 2	0	0	0	0
Liability transfers out of Level 2 into Level 1	0	0	0	0
Liability transfers into (out of) Level 3	$ 0	$ 0	$ 0	$ 0

Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

+ References

No definition available.

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