Fair Value Measurements - Reconciliation for All Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (level 3) (Details) $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($)
Fair Value Disclosures [Abstract]
Balance at December 31, 2018	$ 2,060
Additions	0
Payments	(1,121)
Transfer into (out of) Level 3	0
Balance at June 30, 2019	$ 939

Amount of sales, issues, and settlements (net) which have taken place in relation to liabilities measured at fair value on a recurring basis using unobservable inputs (level 3).

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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